EB2 Series | World Products, LLC

World Products, LLC, Electronic Component Solutions

EB2 Series

Download PDF (104K)

EA2/EB2 Series Data

Features

The NEC EB2 series relays are low power consumption, low magnetic interference surface mount relays. Their compact lightweight design makes them ideal for use in telecommunication equipment. This series complies with FCC Part 68 1500V surge voltage requirements.

The EB2 series is available in 2 form C (DPDT) contact arrangements for all latch types. The EB2 series also offers a minimum foot print design as well as a tape and reel packaging system.

Compact and lightweight
2 form C contact arrangement
Low power consumption
Low magnetic interference
Breakdown voltage: 1000 Vac (surge voltage 1500 V), FCC Part 68 compliant
Tube or embossed tape packaging
UL recognized (E73266), CSA certified (LR46266)
Lead free construction

Applications

Electronic switching systems, PBX, key telephone systems, automatic test equipment and other electronic equipment.

Specifications

Contact Form		2 form C
Contact Material		Silver alloy with gold alloy overlay
Contact Ratings	Maximum switching power	30 W, 62.5 VA (resistive)
	Maximum switching voltage	220 Vdc, 250 Vac
	Maximum switching current	1 A
	Maximum carrying current	2 A
	Minimum carrying ratings	10 mV.dc, 10mA *¹
Initial Contact Resistance		75 mΩ max. (Initial)
Nominal Operating Power	Nonlatch type Double coil latch type	140 mW (3 to 12 V) 200 mW (24 V)
	Single coil latch type	100 mW (3 to 12 V), 150 mW (24V)
Minimum Operating Power	Non-latch type and double coil latch type	79 mW (3 to 12 V) 113 mW (24 V)
	Single coil latch type	56 mW (3 to 12 V) 85 mW (24 V)
Operate Time (Excluding bounce)		Approximately 2 ms without diode
Release Time (Excluding bounce)		Approximately 1 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*²)
	Between adjacent contacts
	Between coil to contacts	1000 Vac (for one minute) 1500 V surge (10 x 160 µs*²)
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		-40 to +85°C
Coil Temperature Rise		18°C at nominal coil voltage (140mW)
Running Specifications	Nonload	1 x 10⁸ operations (non-latch type) *³
		1 x 10⁷ operations (latch type)
	Load	50 Vdc, 0.1 A (resistive) 1 x 10⁶ operations at 85°C
		10 Vdc, 10 mA (resistive)1 x 10⁶ operations at 85°C
Weight		Approximately 1.5 g

*1 This value is a reference value in the resistance load. Minimum capacity changes depending on seitching frequency and environment temperature and the load.
*2 Rise time: 10 µs, fall time: 160 µs
*3 This shows a number of operation where it can be running by which a fatal defect is not caused, and a number of operation by which a steady characteristic is maintained is 1 x 10⁷ operations.

Dimensions

mm (inch)

Pad Layout

(bottom view) mm (inch)

Markings

Schematics

(bottom view)

Part Number System

EB2

Relay series — surface mount type
Nominal coil voltage (See nominal lineup)
Latch type: Blank: Non-latch type (standard); S: Single coil latch type; T: Double coil latch type
Identifier: NU: Standard type (UL recognized, CSA certified type); NUH : Minimum footprint type; NUE : Low profile type
Packaging code: Blank: Tube; L: Embossed carrying tape standard (L type); L6: Embossed carrying tape (L type) with moisture barrier bag

Nominal Lineup

Nonlatch Type at 20° C

Part Number (Standard)	Nominal Coil Voltage (Vdc)	Coil Resistance (Ohm) ±10%	Must Operate Voltage (Vdc)	Must Release Voltage (Vdc)
EB2-3NU	3	64.3	2.25	0.3
EB2-4.5NU	4.5	145	3.38	0.45
EB2-5NU	5	178	3.75	0.5
EB2-6NU	6	257	4.5	0.6
EB2-9NU	9	579	6.75	0.9
EB2-12NU	12	1028	9	1.2
EB2-24NU	24	2880	18	2.4

Single Coil Latch Type at 20 °C

Part Number (Standard)	Nominal Coil Voltage (Vdc)	Coil Resistance (Ohm) ±10%	Must Operate Voltage (Vdc)	Must Release Voltage (Vdc)
EB2-3SNU	3	90	2.25	2.25
EB2-4.5SNU	4.5	202.5	3.38	3.38
EB2-5SNU	5	250	3.75	3.75
EB2-6SNU	6	360	4.5	4.5
EB2-9SNU	9	810	6.75	6.75
EB2-12SNU	12	1440	9.0	9.0
EB2-24SNU	24	3840	18.0	18.0

Double Coil Latch Type at 20 °C (Cannot be driven by reverse polarity for reverse operation)

Part Number (Standard)	Nominal Coil Voltage (Vdc)	Coil Resistance (Ohm) ±10%	Must Operate Voltage (Vdc)	Must Release Voltage (Vdc)
EB2-3TNU	3	S 64.3 R 64.3	2.25 -	- 2.25
EB2-4.5TNU	4.5	S 145 R 145	3.38 -	- 3.38
EB2-5TNU	5	S 178 R 178	3.75 -	- 3.75
EB2-6TNU	6	S 257 R 257	4.5 -	- 4.5
EB2-9TNU	9	S 579 R 579	6.75 -	- 6.75
EB2-12TNU	12	S 1028 R 1028	9.0 -	- 9.0
EB2-24TNU	24	S 2880 R 2880	18.0 -	- 18.0

Note S:	Set Coil (pin No. 1 and 5)
R:	Reset Coil (pin No. 6 and 10)

The latch type relays should be initialized to the reset position prior to using and should be energized to specific polarity by above polarity to avoid wrong operation.
Any special coil requirement, please contact World Products, LLC

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

Soldering Condition

NOTE:
1. Temperature profile shows printed circuit board surface temperature on the relay terminal portion.
2. Please check the actual soldering condition to use other method except above mentioned temperature profiles.

Tube Package

Dimension of Package
(Unit : mm)

Outline of Package

Tape Package

Appearance

Tape Dimensions
(inch)

Relay orientation mark and tape carrying direction

EA2/EB2 Series Data

Top of page

NEC Miniature Signal Relays

Notes on Correct Use

Home

World Products, LLC, 19654 8th St. East, Sonoma, CA 95476 USA
Phone: (707) 996-5201 Fax: (707) 996-3380 E-mail: sales@worldproducts.com