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ED2 Series

As of May 2007, the ED2-xNUN, ED2-xSNU AND EF2-xTNU (single and dual coil latching relays) series are being listed as a non-promotional item and are not for use in new designs. Please note that non latching parts (ED-xNU, ED2-xNJ, EF2-xNU, EF2-xNUX, and EF2-xNUH) are still being promoted for use in new designs.


Features | Applications | Specifications | Dimensions | Pad Layout | Markings
Schematics | Part Number System | Nominal Lineup | Safety Standard and Rating

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ED2/EF2 Series Data

Features

The new ED2 Series miniature signal relays are designed for use in electronic switching systems, PBXs, terminal equipment, telephone equipment and instrument equipment. This series exhibits 50 mW of ultra low power consumption.

CSAUR

  • Low power consumption (50 mW)
  • Applicable for the surge voltage standard of FCC (1500 V, 10 x 160 µs) and Telcordia (2500 V, 2 x 10 µs)
  • Through-hole mounting
  • Variation of dense mounting type and/or long-joint-life type for latest SMT
  • Compatible configuration and terminal allocation with dense mounting type of EE2 series
  • Upgraded soldering joint reliability between the relay terminal and PCB by optimization of the terminal configuration; 20-year-joint-life under 35°C-per-day-temperature-difference specified in IPC-SM-785 for telecommunication equipment

Applications

Electronic switching systems, PBX, terminal equipment, telephone system, instrumental equipment.


Specifications

Contact Form 2 Form C
Contact Ratings Maximum switching power 30 W (resistive) 62.5 VA (resistive)
Maximum switching voltage 220 Vdc 250 Vac
Maximum switching current 1 A
Maximum carrying current 2 A
Minimum Contact Ratings 10 mVdc, 10 µA *4
Initial Contact Resistance 75 mOhm typical (Initial)
Contact Material Silver alloy with gold alloy overlay
Nominal Operating Power Non-latch type 50 to 70 mW
Single coil latch type 30 to 80 mW
Double latch type 50 to 80 mW
Operate Time (Excluding bounce) Approximately 3 ms
Release Time (Excluding bounce) Approximately 2 ms without diode
Insulation Resistance 1000 MOhm at 500 Vdc
Breakdown Voltage Between open contacts 1000 Vac for one minute (1500 V surge, 10 x 160 µs *1)
Between adjacent contacts
Between coil and contact Non-latch type and single-coil latch type
1500 Vac for one minute (2500 V surge, 2 x 10 ms *2)
Double-coil latch type
1000 Vac for one minute (1500 V surge, 10 x 160 ms *1)
Shock Resistance 735 m/s2 (75 G) (misoperating)
980 m/s2 (100G) (destructive failure)
Vibration Resistance 10 to 55 Hz, double amplitude 3 mm (20 G) (misoperating)
10 to 55 Hz, double amplitude 5 mm (30 G) (destructive failure)
Ambient Temperature Non-latch type (Additional “N”): –40 to +85°C
Non-latch type (Standard): –40 to +70°C
Latch type : –40 to +70°C
Coil Temperature Rise 7°C at nominal coil voltage (50 mW)
Running Specifications Nonload 1 x 108 *3 operations (Non-latch type)
1 x 107 operations (Latch type)
Load 50 Vdc, 0.1 A (resistive), 1 x 106 operations at 70°C
10 Vdc, 10 mA (resistive), 1 x 106 operations at 70°C
Weight Approximately 2.2 grams

Dimensions

mm (inch)


Pad Layout

(bottom view) mm (inch)


Markings


Schematics

(bottom view)


Part Number System

ED2
1
- 9
2
S
3
NU
4
1 Relay series — through hole type
2 Nominal coil voltage
1.5, 3, 4.5, 5, 6, 9, 12, 24 V
3 Latch type
Blank: Non-latch type (see Note)
S: Single coil latch type
T: Double coil latch type
4 Identifier
Blank: Standard type
NU: UL recognized, CSA certified type
NJ: Trimed leads (UL recognized, CSA certified type)

(UL, CSA : Under application for latch type)

Note. There are two specifications in the operating voltage of the non-latch type relay.

   Part Number Must Operate Voltage
Additional “N” type ED2-*NU
-*NJ
75%
Standard type ED2-* 80%
* : Nominal coil voltage

 


Nominal Lineup

Non-Latch Type (Standard) at 20°C

Non-Latch
Type
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
 Must Operate 
Voltage
(Vdc)
 Must Release 
Voltage
(Vdc)
Nominal
 Operate Power 
(mW)
ED2-1.5 1.5 45 1.2 0.15 50
ED2-3 3 180 2.4 0.3 50
ED2-4 4.5 405 3.6 0.45 50
ED2-5 5 500 4 0.5 50
ED2-6 6 720 4.8 0.6 50
ED2-9 9 1473 7.2 0.9 55
ED2-12 12 2400 9.6 1.2 60
ED2-24 24 8229 19.2 2.4 70

Non-Latch Type (Additional “N”) at 20°C

Non-Latch Type
(UL and CSA approved
or Trimmed leads, with
UL and CSA approval)
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
 Must Operate 
Voltage
(Vdc)
 Must Release 
Voltage
(Vdc)
Nominal
 Operate Power 
(mW)
ED2-1.5N*
1.5 45 1.13 0.15 50
ED2-3N*
3 180 2.25 0.3 50
ED2-4N*
4.5 405 3.38 0.45 50
ED2-5N*
5 500 3.75 0.5 50
ED2-6N*
6 720 4.5 0.6 50
ED2-9N*
9 1473 6.75 0.9 55
ED2-12N*
12 2400 9.0 1.2 60
ED2-24N*
24 8229 18.0 2.4 70

Single-Coil Latch Type at 20°C

Single Coil
Latch Type
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
 Must Operate 
Voltage
(Vdc)
 Must Release 
Voltage
(Vdc)
Nominal
 Operate Power 
(mW)
ED2-1.5S 1.5 75 1.2 1.2 30
ED2-3S 3 300 2.4 2.4 30
ED2-4S 4.5 675 3.6 3.6 30
ED2-5S 5 833 4 4 30
ED2-6S 6 1200 4.8 4.8 30
ED2-9S 9 2700 7.2 7.2 30
ED2-12S 12 4800 9.6 9.6 30
ED2-24S 24 7200 19.2 19.2 80

Double Coil Latch Type at 20°C

Double Coil
Latch Type
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
 Must Operate 
Voltage
(Vdc)
 Must Release 
Voltage
(Vdc)
Nominal
 Operate Power 
(mW)
ED2-1.5T 1.5 S 45
R 45
1.2
-
-
1.2
50
ED2-3T 3 S 180
R 180
2.4
-
-
2.4
50
ED2-4T 4.5 S 405
R 405
3.6
-
-
3.6
50
ED2-5T 5 S 500
R 500
4
-
-
4
50
ED2-6T 6 S 720
R 720
4.8
-
-
4.8
50
ED2-9T 9 S 1620
R 1620
7.2
-
-
7.2
50
ED2-12T 12 S 2880
R 2880
9.6
-
-
9.6
50

Recommended Coil Voltage with Ambient Temperature

Non-Latch Type (Additional “N”)

Latch Type


Safety Standard and Rating

UL Recognized
(UL508)*
File No. E73266
CSA Certified
(CSA C22.2 No. 14)
File No. LR46266
30 Vdc, 1 A (Resistive)
110 Vdc, 0.3 A (Resistive)
125 Vac, 0.5 A (Resistive)
* Spacing: UL114, UL478
TUV Certified
(EN60255/IEC60255)
No.9950557
Nonlatch and Single-coil latch
Creepage and clearance of coil to contact
is over than 2 mm (According EN60950)
Basic insulation class

ED2/EF2 Series Data

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NEC Miniature Signal Relays

Notes on Correct Use

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Last updated: 9-23-05