Datasheet

littelfuse.com© 2016 Littelfuse Revised: 03/04/16
Specifications are subject to change without notice.
HE700 Miniature Dual In-line Reed Relay
Reed Relays
DIL Packaged > HE700
Table 2: Electrical and Operating Characteristics @ 25°C
Column Number 1 2 3 4
Contact Type
Form A
SPST, DPST
Standard
Form C
SPDT-CO
Standard
Form A
SPST
High Voltage
Form B
SPST-NC
Standard
Relay Types HE721, HE722 HE721C/E/R HE751 HE721
Contact Rating
1
Power, Switching
Voltage, Switching
Current, Switching
Current, Carry
Watt - max.
Vdc - max.
A - max.
A - max.
10
200
0.5
1.2
5
175
0.25
1.5
10
300
0.5
1.2
10
200
0.5
1.5
Voltage Hold-off
4
Across Open Contacts
Contacts to Coil
Coil to E. Shield
Between Isolated Terminals
Vdc - min.
Vac - min.
Vac - min.
Vac - min.
250
500
150
500
200
500
150
N/A
450
4000
N/A
N/A
250
500
N/A
N/A
Resistance
5
Contact, Initial
Insulation Across Open Contacts
Insulation Between Isolated
Terminals
Ω max.
Ω min.
Ω min.
0.150
10
10
10
10
0.200
10
10
10
10
0.150
10
10
10
10
0.150
10
10
10
10
Timing
Operate Time
Release Time
ms - max.
ms - max.
1.0
1.0
3.0
3.0
1.0
1.0
1.0
1.0
Environmental
Temperature, Operating
Temperature, Storage
Vibration Resistance
Shock Resistance
°C
°C
G - max. 10-2000 Hz.
G - max. 11 ms ½ sine
-40 to +85
-40 to +105
20
50
-40 to +85
-40 to +105
20
50
-20 to +85
-40 to +105
20
50
-40 to +85
-40 to +105
20
50
Part Numbering System
HE7X - X - X - X - XX
Contact Type
A - Form A (SPST-NO or DPST-NO)
B - Form B (SPST-NC)
C - Form C (SPDT-CO)
E - Form C (SPDT-CO) alternate foot print 1
R - Form C (SPDT-CO) alternate foot print 2
Number of Contacts
1 and 2
General Options
00 - No Options
10 - Coil Suppression Diode
20 - Electrostatic Shield
30 - Coil Diode and E.S. Shield
40 - External Magnetic Shield
50 - External Magnetic Shield and Diode
Model Number
HE72 - Standard
HE75 - High Voltage
Standard Coil
05 - 5 Volt
12 - 12 Volt
24 - 24 Volt
Note: Not all combinations of Part Number suffixes are available. Contact Littelfuse for details.