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© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard 

R7001_EA2_EB2 • 5/19/2021

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

Built Into Tomorrow

Benefits

•  Low power consumption (< 200 mW)

•  Compact and lightweight

•  Low magnetic interference

•  Breakdown voltage: 1,000 VAC (1,500 VAC surge),  

FCC Part 68 compliant

•  Tube or embossed tape and reel packaging

•  UL recognized (E73266) and CSA certified (LR46266)

•  Surface mount and through-hole options

Overview

The KEMET EA2/EB2 miniature signal relays offer a 

compact case size in a flat package. Minimal board space 

is consumed with either a through-hole or surface mount 

configuration. These relays are recognized by UL and CSA, 

while also being compliant with Part 68 of the FCC’s 1,500 

V surge capacity.

Applications

•  Electronic switching systems

• PBX

•  Terminal equipment

•  Telephone systems

Miniature Signal Relays

EA2/EB2

Part Number System

EB2-

3

S

NU

-L

Series

Coil Voltage

Latch Type

Lead Type

Packaging

EA2- = Through-hole mount 

EB2- = Surface mount

3 = 3 VDC

4.5 = 4.5 VDC

5 = 5 VDC

12 = 12 VDC

24 = 24 VDC

Blank = Non-latch type

S = Single coil latch type

T = Double coil latch type

NU = Standard

NJ = Trimmed

Blank = Tube

-L = Embossed tape on reel

Summary of Contents for KEMET EA2 NJ Series

Page 1: ...signal relays offer a compact case size in a flat package Minimal board space is consumed with either a through hole or surface mount configuration These relays are recognized by UL and CSA while also being compliant with Part 68 of the FCC s 1 500 V surge capacity Applications Electronic switching systems PBX Terminal equipment Telephone systems Miniature Signal Relays EA2 EB2 Part Number System ...

Page 2: ...iniature Signal Relays EA2 EB2 Dimensions Millimeters EA2 Series D Maximum B Maximum 0 33 0 25 0 5 H Maximum P1 P2 K General tolerance 0 2 EB2 Series B Maximum D Maximum H Maximum K P1 P2 11 5 0 25 0 5 General tolerance 0 2 Series D H B P1 P2 K EA2 NU 14 2 5 4 9 2 2 54 7 62 3 5 EA2 NJ 14 2 5 4 9 2 2 54 7 62 2 8 EB2 14 3 7 5 9 3 2 54 7 62 1 35 ...

Page 3: ...ed UL508 1 E73266 30 VDC 1 A resistive 110 VDC 0 3 A resistive 125 VAC 0 5 A resistive CSA CSA Certified CSA 22 2 14 LR46266 1 Spacing UL114 UL478 Environmental Compliance All KEMET relays are RoHS Compliant 1 2 3 4 5 10 9 8 7 6 Direction mark Single coil latch type Reset position S Coil polarity for Set R Coil polarity for Reset R S R S 1 2 3 4 5 Set coil Reset coil Double coil latch type Reset p...

Page 4: ...2 3 1 NU 3 0 Surface Mount Tube EB2 4 5 1 NU 4 5 Surface Mount Tube EB2 5 1 NU 5 0 Surface Mount Tube EB2 12 1 NU 12 0 Surface Mount Tube EB2 24 1 NU 24 0 Surface Mount Tube EB2 3 1 NU L 3 0 Surface Mount Tape on Reel EB2 4 5 1 NU L 4 5 Surface Mount Tape on Reel EB2 5 1 NU L 5 0 Surface Mount Tape on Reel EB2 12 1 NU L 12 0 Surface Mount Tape on Reel EB2 24 1 NU L 24 0 Surface Mount Tape on Reel ...

Page 5: ...conds maximum Note KEMET recommends cooling down a printed circuit board to less than 110 C within 40 seconds after soldering Manual Soldering Solder temperature 350 C maximum Solder time 3 seconds maximum EB2 Surface Mounting IRS Method 200 180 190 Maximum 300 45 Maximum 70 70 Maximum 120 220 200 180 Temperature C 220 Maximum 240 C Time seconds Note Temperature profile shows printed circuit board...

Page 6: ...VA Maximum Switching Voltage 220 VDC 250 VAC Maximum Switching Current 1 A Maximum Carrying Current 2 A Minimum Contact Ratings 10 mVDC 10 µA 1 Initial Contact Resistance 75 mΩ maximum initial Operating Time excluding bounce Approximately 2 milliseconds Release Time excluding bounce Approximately 1 millisecond Insulation Resistance 1 000 MΩ at 500 VDC Withstand Voltage Between Open Contacts 1 000 ...

Page 7: ...h type relays should be initialized to a known position before using Only the specified polarity should be used to energize the coil Double Coil Latch Type at 20 C 2 3 Nominal Coil Voltage VDC Coil Resistance Ω 10 Set Voltage4 VDC Release Voltage4 VDC Nominal Operating Power mW 3 S 64 3 2 25 140 R 64 3 2 25 4 5 S 145 3 38 140 R 145 3 38 5 S 178 3 75 140 R 178 3 75 12 S 1028 9 0 140 R 1028 9 0 24 S...

Page 8: ...l Type Rating Ambient Temperature Non latch Voltage 5 of nominal voltage 40 to 85 C Single Coil Double Coil Square pulse rise and fall time is rapid Pulse height 5 of nominal voltage Pulse Width 10 ms Marking Top View Part Number Manufacturer Country of Origin Date Code Direction Mark Pin No 1 and 8 UL CSA Marking Part Number Manufacturer Country of Origin Date Code Direction Mark Pin No 1 and 12 ...

Page 9: ...KIN for maximum values under continuous use MAXIMUM COIL VOLTAGE This is a maximum value of permissible alteration Inquire with NEC TOKIN under continuous use DC Resistive AC Resistive 250VAC 220VDC Contact current A Ratio of nominal coil voltage 0 100 150 200 250 0 Applied power mW 1 2 3 4 0 100 200 300 400 0 Applied power mW 1 2 3 4 APPLIED VOLTAGE VS TIMING Sample EA2 5NU Without coil diode Ope...

Page 10: ...AMBIENT TEMPERATURE This shows a typical change of operate release voltage The value of must operate is estimated so coil voltage must be applied more than this value for safety operation For hot start operation please inquire with NEC TOKIN 40 20 0 20 40 60 80 100 100 80 60 40 20 0 Ambient temperature C Must operate voltage Operate voltage typical Ratio of nominal coil voltage 5 4 3 2 1 0 0 20 50...

Page 11: ...detailed product data prior to the purchase EA2 EB2 SERIES 10 100 50 0 0 5 1 0 1 5 2 0 Breakdown voltage K V 100 50 0 1 0 1 5 2 0 2 5 100 50 0 0 5 1 5 2 0 2 5 BREAKDOWN VOLTAGE Sample EA2 5NU 10peices a Between open contacts b Between adjacent contacts C Between coil and ALTERNATION OF VOLTAGE IN DENSE MOUNTING magnet interference Distribution Distribution Distribution Breakdown voltage K V Breakd...

Page 12: ...2 0 1 75 12 1 0 4 max 8 1 14 7 24 0 4 Φ 1 5 Φ 2 2 16 11 5 2 0 1 75 12 1 0 4 Maximum 8 1 14 7 Direction mark Sprocket hole Direction of unreeling Direction mark Sprocket hole Direction of unreeling 750 pieces Reel Reel diameter 380mm K AND TAPE CARRYING DIRECTION Reel Top cover tape Emboss Carrying tape 24 0 4 Φ 1 5 Φ 2 2 16 11 5 2 0 1 75 12 1 0 4 max 8 1 14 7 24 0 4 Φ 1 5 Φ 2 2 16 11 5 2 0 1 75 12...

Page 13: ...under the actual operating conditions Evaluate the performance by using the actual circuit before using the relay 2 Driving relays If the internal connection diagram of a relay shows and symbols on the coil apply the rated voltage to the relay in the specified direction If a rippled DC current source is used abnormalities such as beat at the coil may occur The maximum voltage that can be applied t...

Page 14: ...listed in the printed version catalog 2007 08 03 P0886EMDD03VOL01E 13 ctual operating conditions ng the actual circuit before am of a relay shows and rated voltage to the relay in pled DC current source is at at the coil may occur be applied to the coil of the the ambient temperature ge applied to the coil the ote however that a high nce of the contacts and ng frequency which may s m of the relay ...

Page 15: ...light shock has been applied to the relay thoroughly evaluate its operation before using it Latching relays are factory set to reset state for shipment A latching relay may be set however by vibration or shock applied while being transported Be sure to forcibly reset the relay before using it in the application set Also note that the relay may be set by unexpected vibration or shock when it is use...

Page 16: ...ne the correct products for their application Any technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET s products is given gratis and KEMET assumes no obligation or liability for the advice given or results obtained Although KEMET designs and manufactures its products to the most stringent quality and safety standards given the current s...

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