51
Notes:
1) The HE 700 Series is also available in low profile with
(.225) 5,72mm height. Contact Hamlin for details.
2) HE721B - Exceeding recommended voltage may cause
contact reclosure.
3) Optional external magnetic shield not available on
Form B relays.
Table 3
HE700 Series Miniature Relay
Coil Characteristics @ 25˚C.
Contact
Electrical &
Dimensions
Part
Nominal
Coil
Must
Must
Maximum
Top View 2,54 mm, 0.1 in. Grid
Form
Operating
Number
Coil Voltage
Resistance
Operate
Release
Coil Voltage
Dot on Case: Pin 1
Characteristics
Vdc
±10% Ohms
Vdc
Vdc
Vdc
Numbers not printed on case.
1A
HE721A0500
5
500
3.75
0.5
12
SPST-NO
See Table 2
Figure 1
HE721A1200
12
1000
8.0
1.0
31
Column 1
HE721A2400
24
2150
16.0
2.0
46
See Note 2, 3
1B
HE721B0500
5
500
3.75
0.5
6.5
SPST-NC
See Table 2
Figure 1
HE721B1200
12
500
9.0
1.0
14
Column 4
HE721B2400
24
2150
18.0
2.0
28
1C
HE721C0500
5
200
3.75
0.5
14
SPDT-CO
See Table 2
Figure 1
HE721C1200
12
500
8.0
1.0
22
Column 2
HE721C2400
24
2000
16.0
2.0
44
1C
HE721E0500
5
200
3.75
0.5
14
SPDT-CO
See Table 2
Figure 1
HE721E1200
12
500
8.0
1.0
22
Column 2
HE721E2400
24
2000
16.0
2.0
44
1C
HE721R0500
5
200
3.75
0.5
14
SPDT-CO
See Table 2
Figure 1
HE721R1200
12
500
8.0
1.0
22
Column 2
HE721R2400
24
2000
16.0
2.0
44
2A
HE722A0500
5
200
3.75
0.5
12
DPST-NO
See Table 2
Figure 1
HE722A1200
12
500
8.0
1.0
22
Column 1
HE722A2400
24
2150
16.0
2.0
46
1A
HE751A0500
5
500
3.75
0.5
12
SPST-NO
See Table 2
Figure 2
HE751A1200
12
1000
8.0
1.0
31
High Voltage
Column 3
HE751A2400
24
2150
16.0
2.0
46
Column Number
1234
Contact Type
Form A
Form C
Form A
Form B
SPST, DPST
SPDT-CO
SPST
SPST-NC
Standard
Standard
High Voltage
Standard
Relay Types
HE721, HE722 HE721C, E, R
HE751
HE721
CONTACT RATINGS
Power, Switching
Watt - max.
10
5
10
10
Contact Hamlin for
Voltage, Switching
Vdc - max.
200
175
300
200
specific load/life details Current, Switching
A - max.
0.5
0.25
0.5
0.5
Current, Carry
A - max.
1.2
1.5
1.2
1.2
VOLTAGE HOLD-OFF
Across Open Contacts
Vdc - min.
250
200
450
250
Contacts to Coil
Vac - min.
500
500
2500
500
Coil to E. Shield
Vac - min.
150
150
N/A
N/A
Between Isolated Terminals
Vac - min.
500
N/A
N/A
N/A
RESISTANCE
Contact, Initial
Ω - max.
0.150
0.200
0.150
0.150
Insulation: Across Open Contacts
Ω - min.
1010
109
1010
1010
Between Isolated Terminals
Ω - min.
1010
1010
1010
1010
TIMING
Operate Time
ms - max.
1.0
3.0
1.0
1.0
Release Time
ms - max.
1.0
3.0
1.0
1.0
ENVIRONMENTAL
Temperature, Operating
°C
-40 to +85
-40 to +85
-20 to +85
-40 to +85
Temperature, Storage
°C
-40 to +105
-40 to +105
-40 to +105
-40 to +105
Vibration Resistance
G - max. 10-2000 Hz.
20
20
20
20
Shock Resistance
G - max. 11 ms,
1⁄2 sine
50
50
50
50
Table 2
HE700 Series
Recognised File #E47258
Electrical and Operating Characteristics @ 25˚C.
INFORMATION PROVIDED ON THIS DATA SHEET IS PROVIDED FOR INFORMATION PURPOSES ONLY AND SHOULD NOT BE RELIED
UPON AS BEING ACCURATE FOR ANY PARTICULAR PURPOSE. Product performance may be affected by the application to which the product
is put. Upon request, HAMLIN will assist purchasers by providing information specific to any particular application. HAMLIN disclaims any and all
liability whatsoever for any purchaser’s reliance upon the information contained on this data sheet without further consultation with authorised
representatives of HAMLIN.