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NEC |
DATA SHEET
MINIATURE SIGNAL RELAY
ED2/EF2 SERIES
Ultra-low power, compact and lightweight, High breakdown voltage,
Surface mounting type
DESCRIPTION
NEC's new miniature signal relays, ED2/EF2 series, achieved 50 mW of ultra low power consumption.
FEATURES
™ Low power consumption (50 mW)
™ Applicable for the surge voltage standard of FCC (1500 V, 10 × 160 µs) and BELLCORE (2500 V, 2 × 10 µs)
™ Two types for through-hole mounting (ED2 series) and surface mounting (EF2 series)
™ 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 telecommuication
equipment
APPLICATIONS
Electronic switching systems, PBX, terminal equipment, telephone system, instrumental equipment.
For Right Use of Miniature Relays
DO NOT EXCEED MAXIMUM RATINGS.
Do not use relays under exceeding conditions such as over ambient temperature, over voltage
and over current. Incorrect use could result in abnormal heating, damage to related parts or
cause burning.
READ CAUTIONS IN THE SELECTION GUIDE.
Read the cautions described in NEC's "Miniature Relays" (ER0046EJ∗) when you choose relays
for your application.
The information in this document is subject to change without notice.
Document No. ER0304EJ2V0DS00 (2nd edition)
Date Published February 1999 M
Printed in Japan
©
1997
DIMENSIONS AND PAD LAYOUTS (Unit : mm (inch))
ED2 SERIES
15.0 (0.59) MAX.
7.5 (0.30) MAX.
Non-latch and Single coil latch
8-φ 0.8 (0.031)
ED2/EF2 SERIES
Double coil latch
10-φ 0.8 (0.031)
0.5
(0.02)
5.08 2.54 2.54 2.54
(0.20)(0.10)(0.10)(0.10)
0.25
(0.01)
5.08
(0.20)
2.54
(0.100) 4 × 2.54 (0.100)
2.54
(0.100) 5 × 2.54 (0.100)
(Bottom fiew)
Note. General tolerance : ±0.2 (±0.008)
Dimensions in show basic size.
NJ type : Leads-2.8 mm (0.110)
Note. General tolerance : ±0.1 (±0.004)
EF2 SERIES
EF2-..
EF2-..NU
15.0 MAX.
(0.591)
7.5 MAX.
(0.296)
EF2-..NUX
15.0 MAX.
(0.591)
5.08
(0.200)
note2
2-2.54
(2-0.100)
EF2-..NUH
15.0 MAX.
(0.591)
5.08
(0.200)
9.5
(0.374)
7.5 MAX.
(0.296)
5.08
(0.200)
note2
2-2.54
(2-0.100)
EF2-..NUN
15.0 MAX.
(0.591)
5.08
(0.200)
note2
2-2.54
(2-0.100)
5.08
(0.200)
7.5
(0.295)
5.08
(0.200)
note2
2-2.54
(2-0.100)
Note 1. General torelance : ± 0.2 ( ± 0.008)
Note 2. This pair of pins at the right end applies
to double coil latch type only.
7.5 MAX.
(0.296)
5.08
(0.2)
9.0
(0.354)
7.5 MAX.
(0.296)
5.08
(0.200)
7.5
(0.295)
1.0(0.039)
note2
5.08
(0.200)
note2
3-2.54
(0.100)
(Bottom view)
Type
EF2-..
EF2-..NU
EF2-..NUX
EF2-..NUH
EF2-..NUN
A
3.0 (0.118)
3.0 (0.118)
2.73 (0.107)
2.0 (0.079)
2.0 (0.079)
B
7.29 (0.287)
7.29 (0.287)
7.02 (0.276)
6.29 (0.248)
6.29 (0.248)
Note 1. General torelance : ± 0.1 ( ± 0.004)
Note 2. This pair of pads at the right end
applies to double coil latch type only.
2 DATA SHEET ER0304EJ2V0DS00
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