Reed Relays

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Part	Manufacturer	Relay Type	Mounting Feature	Relay Action	Relay Function	Coil or Input Supply Type	Reference Standard	Maximum Contact AC Rating (R Load)	Dielectric Strength Between Open Contacts	Relay Form	Operate Time	Maximum Contact DC Power Rating (R Load)	Release Time	Insulation Resistance	Coil Power (mW)	Packing Method	Body Length/Diameter	Body Width	Coil Resistance	Sealing	No. of Terminals	Physical Dimension	Body Height	Dielectric Strength Between Coil & Contacts	Maximum Contact DC Rating (R Load)	Maximum Operating Temperature	Maximum AC Contact Current	Maximum DC Coil Current	Minimum Operating Temperature	DC Coil Release Voltage	Maximum DC Contact Current	Termination Type	Nominal Coil Voltage	DC Coil Operate Voltage	Contact Resistance	Input Switching Control Type	PCB Hole Count	Maximum DC Contact Voltage	Additional Features	Maximum AC Contact Voltage	Terminal Length	Maximum DC Coil Voltage	Contact or Output Supply Type
HE72-1-A-05-50	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM A	1 ms		1 ms	10000000000 ohm	50	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	12 V	DC
HE722A2410	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random	8	200 V	COIL SUPPRESSION DIODE		.1181 inch	46 V	DC
HE722A2430	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL		250 Vrms	2 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random	8	200 V			.1181 inch	46 V	DC
HE721C0540	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	125	BULK	19.05 mm	7.62 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random	4	175 V			.1181 inch	14 V	DC
HE72-2-A-12-40	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.5A@200VDC	85 Cel		.024 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random		200 V	SHIELDED		.1181 inch	22 V	DC
HE72-1-C-24-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	2000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.012 A	-40 Cel	2 V	.25 A	SOLDER	24 V	16 V	200 mohm	Random		175 V	WITH DIODE, SHIELDED		.1181 inch	44 V	DC
HE721R0500	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL	0.18A@120VAC		1 FORM C	3 ms		3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8		5.5 mm		0.25A@175VDC	85 Cel	.18 A	.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random		175 V		120 V	.1181 inch	14 V	AC/DC
HE72-1-A-05-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	50	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	4	200 V	SHIELDED		.1181 inch	12 V	DC
HE721E0530	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random	4	175 V			.1181 inch	14 V	DC
HE72-1-A-24-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM A	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random		200 V	SHIELDED		.1181 inch	46 V	DC
HE722A1240	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL		250 Vrms	2 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.5A@200VDC	85 Cel		.024 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random	8	200 V			.1181 inch	22 V	DC
HE721E1230	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random	4	175 V			.1181 inch	22 V	DC
HE721E0520	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random	4	175 V			.1181 inch	14 V	DC
HE721A1250	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	144	BULK	19.05 mm	7.62 inch	1000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.5A@200VDC	85 Cel		.012 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random	4	200 V			.1181 inch	31 V	DC
HE721C1240	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random	4	175 V			.1181 inch	22 V	DC
HE721A1220	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	144	BULK	19.05 mm	7.22 inch	1000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.012 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random	4	200 V			.1181 inch	31 V	DC
HE72-1-C-12-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random		175 V	SHIELDED		.1181 inch	22 V	DC
HE721E1210	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random	4	175 V			.1181 inch	22 V	DC
HE72-1-B-05-10	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM B	1 ms	10W@200VDC	1 ms	10000000000 ohm	50	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	4	200 V	COIL SUPPRESSION DIODE		.1181 inch	6.5 V	DC
HE72-1-E-05-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random		175 V	SHIELDED		.1181 inch	14 V	DC
HE72-2-A-12-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.024 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	22 V	DC
HE72-1-C-05-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random		175 V	SHIELDED		.1181 inch	14 V	DC
HE72-1-B-24-10	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM B	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	18 V	150 mohm	Random		200 V	COIL SUPPRESSION DIODE		.1181 inch	28 V	DC
HE72-2-A-05-50	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	125	BULK	19.05 mm	7.62 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.5A@200VDC	85 Cel		.025 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	12 V	DC
HE721A2420	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random	4	200 V			.1181 inch	46 V	DC
HE721B0530	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM B	1 ms	10W@200VDC	1 ms	10000000000 ohm	50	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	4	200 V			.1181 inch	6.5 V	DC
HE72-2-A-24-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	46 V	DC
HE72-1-E-05-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random		175 V	WITH DIODE, SHIELDED		.1181 inch	14 V	DC
HE72-1-A-24-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM A	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	46 V	DC
HE721E2420	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	2000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.012 A	-40 Cel	2 V	.25 A	SOLDER	24 V	16 V	200 mohm	Random	4	175 V			.1181 inch	44 V	DC
HE721E0510	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.025 A	-40 Cel	.5 V	.25 A	SOLDER	5 V	3.75 V	200 mohm	Random	4	175 V	COIL SUPPRESSION DIODE		.1181 inch	14 V	DC
HE72-1-B-05-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM B	1 ms		1 ms	10000000000 ohm	50	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	6.5 V	DC
HE72-1-A-12-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL			1 FORM A	1 ms		1 ms	10000000000 ohm	144	BULK	19.05 mm	7.22 inch	1000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.012 A	-40 Cel	1 V	.5 A	SOLDER	12 V	8 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	31 V	DC
HE721C2420	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	2000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.25A@175VDC	85 Cel		.012 A	-40 Cel	2 V	.25 A	SOLDER	24 V	16 V	200 mohm	Random	4	175 V			.1181 inch	44 V	DC
HE722A0520	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL		250 Vrms	2 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.025 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	8	200 V			.1181 inch	12 V	DC
HE72-2-A-24-20	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random		200 V	SHIELDED		.1181 inch	46 V	DC
HE721B2400	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL	0.35A@140VAC	250 Vrms	1 FORM B	1 ms	10W@200VDC	1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8		5.5 mm	500 Vrms	0.5A@200VDC	85 Cel	.35 A	.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	18 V	150 mohm	Random	4	200 V		140 V	.1181 inch	28 V	AC/DC
HE722A2420	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL		250 Vrms	2 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	264	BULK	19.05 mm	7.22 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random	8	200 V			.1181 inch	46 V	DC
HE72-1-E-12-10	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random		175 V	COIL SUPPRESSION DIODE		.1181 inch	22 V	DC
HE721C2450	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL		200 Vrms	1 FORM C	3 ms	5W@175VDC	3 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	2000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.25A@175VDC	85 Cel		.012 A	-40 Cel	2 V	.25 A	SOLDER	24 V	16 V	200 mohm	Random	4	175 V			.1181 inch	44 V	DC
HE72-2-A-24-50	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	264	BULK	19.05 mm	7.62 inch	2150 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.5A@200VDC	85 Cel		.011 A	-40 Cel	2 V	.5 A	SOLDER	24 V	16 V	150 mohm	Random		200 V	WITH DIODE, SHIELDED		.1181 inch	46 V	DC
HE72-1-C-24-40	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	2000 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.25A@175VDC	85 Cel		.012 A	-40 Cel	2 V	.25 A	SOLDER	24 V	16 V	200 mohm	Random		175 V			.1181 inch	44 V	DC
HE721R1200	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL	0.18A@120VAC		1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8		5.5 mm		0.25A@175VDC	85 Cel	.18 A	.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random		175 V		120 V	.1181 inch	22 V	AC/DC
HE72-2-A-05-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	DPST	DC	CUL; UL			2 FORM A	1 ms		1 ms	10000000000 ohm	125	BULK	19.05 mm	7.22 inch	200 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.5A@200VDC	85 Cel		.025 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random		200 V			.1181 inch	12 V	DC
HE721A0540	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	50	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm	500 Vrms	0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	4	200 V			.1181 inch	12 V	DC
HE72-1-E-12-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm		0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random		175 V	WITH DIODE, SHIELDED		.1181 inch	22 V	DC
HE72-1-C-12-50	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPDT	DC	CUL; UL			1 FORM C	3 ms		3 ms	10000000000 ohm	288	BULK	19.05 mm	7.62 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.62mm x 5.82mm	5.82 mm		0.25A@175VDC	85 Cel		.024 A	-40 Cel	1 V	.25 A	SOLDER	12 V	8 V	200 mohm	Random		175 V	WITH DIODE, SHIELDED		.1181 inch	22 V	DC
HE72-1-A-05-30	Littelfuse	DRY REED RELAY	THROUGH HOLE-STRAIGHT MOUNT	MOMENTARY	SPST	DC	CUL; UL		250 Vrms	1 FORM A	1 ms	10W@200VDC	1 ms	10000000000 ohm	50	BULK	19.05 mm	7.22 inch	500 ohm	HERMETICALLY SEALED	8	19.05mm x 7.22mm x 5.5mm	5.5 mm	500 Vrms	0.5A@200VDC	85 Cel		.01 A	-40 Cel	.5 V	.5 A	SOLDER	5 V	3.75 V	150 mohm	Random	4	200 V	WITH DIODE, SHIELDED		.1181 inch	12 V	DC

Reed Relays

Reed relays are a type of electromechanical switch that are used in a variety of electronic applications. They are named after the metal reed contacts that are used to make and break the electrical connection. The reed contacts are sealed in a glass envelope that is filled with an inert gas, usually nitrogen or a vacuum, to prevent oxidation and ensure long-term reliability.

One of the main advantages of reed relays is their fast switching speed, typically in the range of a few milliseconds. They are also capable of switching low-level signals with high accuracy and low contact resistance, making them ideal for use in high-frequency and low-level signal applications. Additionally, they have a long life span and are able to withstand shock and vibration, making them suitable for use in harsh environments.

Reed relays are commonly used in applications such as test and measurement equipment, medical devices, telecommunications, and industrial control systems. They can be designed to switch both AC and DC signals, and can handle a range of voltages and currents depending on the specific application. They are available in a variety of sizes and configurations, including single-pole, double-pole, and latching types, and can be mounted on printed circuit boards or in sockets for easy replacement.