Key facts
- Brand
- NEC
- Model
- EP1
- Documents
- 4
- Languages
- EN
- Last added
- 2012-06-12
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NEC EP2S/EP1S Series Automotive Relay Datasheet
This document provides technical specifications, dimensions, and application details for the NEC EP2S/EP1S series of automotive relays. These devices are designed as PC-board mount types suitable for motor controls requiring high quality and performance, specifically noted for their low sound pressure operation.
The datasheet covers two main variants: the H Bridge Type (EP2S) and the Separate Type (EP1S). It includes detailed coil ratings, contact specifications such as switching voltage and current capacity, mechanical life expectancy, and environmental operating limits. Schematic diagrams and PCB pad layouts are also provided to assist in design integration.
NEC EP1 specifications
| Sound Pressure Level (Operate) | 57 dBA nominal |
|---|---|
| Sound Pressure Level (Release) | 49 dBA nominal |
| Contact Form | 1 form C x2 (H bridge type and separate type) |
| Contact Material | Silver oxide complex alloy |
| Contact Switching Voltage | 16 Vdc max. |
| Ambient Temperature Range | -40°C to +85°C |
All NEC EP1 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the applications for these relays?
They are suitable for power window control, electrical door lock, and wiper systems.
How does the EP2S series differ from the EP1S series?
The EP2S series is an H Bridge Type, while the EP1S series is a Separate Type.
What is the maximum contact switching current for the EN2 series?
The EN2 series supports a maximum contact switching current of 35 A.
Which applications are suitable for the EP1 and MR301 series?
The EP1 and MR301 series are designed for medium load applications such as interval wipers and stereo systems.
What is the nominal sound pressure level when the relay operates?
The nominal sound pressure level is 57 dBA when the relay operates.
What are the typical applications for these relays?
Typical applications include power window control, electrical door lock, and wiper systems.