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EN2 Series

Features | Specifications | Coil Rating | Dimensions | PCB Pad Layout | Schematics | Part Number System

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EN2 Series Data

Features

The NEC EN2 series relay was the first PC-mount, fully-sealed dual relay available. It leads the industry in quality and power/size density. The EN2 consists of two 1 Form C (SPDT) relays in one unit.

The EN2 is available with interconnections for H-bridge motor drive, or with no interconnects for independent operation. The EN2 is intended for automotive loads up to 35A.
  • Twin relay for motor reversible control
  • 30% less relay space than 2 conventional relays
  • High performance & productivity by unique symmetrical structure
  • Flux tight housing

Specifications

Types (Contact Rating) EN2-
(Standard)		 EN2-B
(High Current)
Contact Form 1 form C x 2 (H Bridge Type & Separate Type)
Contact Material Silver oxide complex alloy
Contact Resistance
10 mOhm typ./50 mOhm max. (measured at 7A) initial
Contact Switching Voltage 16 Vdc
Contact Switching Current
35 A maximum (at 16 Vdc)
Contact Carrying Current 25 A maximum (1 hour maximum),
30 A maximum (2 minutes maximum) at 12 Vdc		 35 A maximum (1 hour maximum),
40 A maximum (2 minutes maximum) at 12 Vdc
Operate Time (Excluding bounce) Approximately 5 ms (at 12 Vdc) initial
Release Time (Excluding bounce) Approximately 2 ms (at 12 Vdc) initial, without diode
Nominal Operate Power 0.64 W/0.8 W/1.15 W (at 12 Vdc)
Insulation Resistance
100 MOhm at 500 Vdc, initial
Breakdown Voltage
500 Vdc (for one minute), initial
Shock Resistance 98 m/s2 (10 G) (misoperating)
980 m/s2 (100G) (destructive failure)  
Vibration Resistance 10 to 300 Hz, 43 m/s2 (4.4 G) (misoperating)
10 to 500 Hz, 43 m/s2 (4.4 G), 200 hours (destructive failure)
Ambient Temperature -40 to +85° C (-40 to +185° F)
Coil Temperature Rise
50° C / W (122° F/W)
Life Expectancy Mechanical 1 x 106 operations
Electrical (at maximum load) 100 x 103 operations (at 14 Vdc, Motor Load 25 A/7 A)
Weight Approximately 18 g (0.63 oz)

Coil Rating

at 25° C (77° F)

Part Numbers
 Nominal
Voltage
(Vdc)		 Coil
Resistance
(Ohm) ±10%		 Nominal
Current
(mA)		 Must Operate
Voltage
(Vdc maximum)		 Must Release
Voltage
(Vdc minimum)		 Nominal
Operate Power
(W)
H Bridge Type
Separate Type
  EN2-1N1S     EN2-1N1ST   12 125 96.0 6.5 0.6 1.15

* Note 1 - Other coil resistances and voltages available upon request.

Dimensions

mm (inch)

H Bridge Type

Separate (T) Type

PCB Pad Layout

(bottom view) mm (inch)

H Bridge Type

Separate (T) Type

Schematics

(bottom view)

H Bridge Type

Separate (T) Type

Part Number System

EN2
1		 - B
2		 1
3		 N
4		 1
5		 S
6		 T
7
1 Relay series
2 Carrying current capacity
Blank: Standard type
B: High current type
3 Coil resistance (at 25° C)
1: 125 Ohm ± 10%
* See Note 1 above
4 Contact material
N: Silver oxide complex alloy type I
H: Silver oxide complex alloy type II
5 Operate voltage (at 25° C)
1: 6.5 V maximum
* See Note 1 above
6 Enclosure
Blank: Unsealed
S: Sealed
7 Wiring
Blank: H bridge type
T: Separate type

EN2 Series Data

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NEC Miniature Power Relays

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Last updated: 6-7-99