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Miniature Signal Relays
EA2/EB2
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.
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
Part Number System
EB2-
Series
EA2- = Through-hole mount
EB2- = Surface mount
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
3
Coil Voltage
3 = 3 VDC
4.5 = 4.5 VDC
5 = 5 VDC
12 = 12 VDC
24 = 24 VDC
Applications
• Electronic switching systems
• PBX
• Terminal equipment
• Telephone systems
S
Latch Type
Blank = Non-latch type
S = Single coil latch type
T = Double coil latch type
NU
Lead Type
NU = Standard
Blank = Tube
NJ = Trimmed
-L = Embossed tape on reel
R7001_EA2_EB2 • 5/19/2021
-L
Packaging
Built Into Tomorrow
1
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Summary of Contents for Yageo KEMET EA2 NU Series
- Page 1 Miniature Signal Relays EA2/EB2 Overview Applications The KEMET EA2/EB2 miniature signal relays offer a • Electronic switching systems compact case size in a flat package. Minimal board space • PBX is consumed with either a through-hole or surface mount • Terminal equipment configuration. These relays are recognized by UL and CSA, • Telephone systems while also being compliant with Part 68 of the FCC’s 1,500 V surge capacity.
- Page 2 Miniature Signal Relays – EA2/EB2 Dimensions – Millimeters EA2 Series B Maximum D Maximum H Maximum 0.33 0.25 General tolerance: ±0.2 EB2 Series D Maximum B Maximum H Maximum 0.25 General tolerance: ±0.2 11.5 Series EA2 (NU) 14.2 2.54 7.62 EA2 (NJ) 14.2 2.54...
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Page 3: Pin Configurations
Miniature Signal Relays – EA2/EB2 Pin Configurations Bottom view Single coil latch type Double coil latch type Non-latch type (Reset position) (Reset position) (Non-energized position) Set coil ＋ ＋ － － ＋ ＋ － － S: Coil polarity for Set R: Coil polarity for Reset Reset coil Safety Standards and Ratings... - Page 4 Miniature Signal Relays – EA2/EB2 Table 1 – Ratings & Part Number Reference Part Number Nominal Coil Voltage Lead Type Packaging () Designates Latch Type (VDC) EA2-3(1)NU Radial Tube EA2-4.5(1)NU Radial Tube EA2-5(1)NU Radial Tube EA2-12(1)NU 12.0 Radial Tube EA2-24(1)NU 24.0 Radial Tube...
- Page 5 Miniature Signal Relays – EA2/EB2 Soldering Process EA2 – Through-hole Mounting Automatic Soldering Preheating: 110–120°C/110 seconds (maximum) Solder temperature: 260°C maximum Solder time: 5 seconds 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...
- Page 6 Miniature Signal Relays – EA2/EB2 Contact Specifications Item EA2/EB2 Contact Form 2 Form C Contact Material Silver alloy with gold alloy overlay Maximum Switching Power 30 W, 62.5 VA Maximum Switching Voltage 220 VDC, 250 VAC Contact Ratings Maximum Switching Current Maximum Carrying Current Minimum Contact Ratings 10 mVDC, 10 µA...
- Page 7 Miniature Signal Relays – EA2/EB2 Coil Specifications cont. Single Coil Latch Type (at 20°C) Nominal Coil Voltage Coil Resistance Set Voltage Reset Voltage Nominal Operating (VDC) (Ω) ±10% (VDC) (VDC) Power (mW) 2.25 2.25 202.5 3.38 3.38 3.75 3.75 1440 3840 18.0 18.0...
- Page 8 Miniature Signal Relays – EA2/EB2 Recommended Relay Drive Conditions Coil Type Rating Ambient Temperature Non-latch Voltage: ≤ ±5% of nominal voltage Square pulse (rise and fall time is rapid) −40 to +85°C Single Coil Pulse height: ≤ ±5% of nominal voltage Double Coil Pulse Width: > 10 ms Marking Top View Part Number Direction Mark (Pin No.
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Page 9: Performance Data
EA2/EB2 SERIES EA2/EB2 SERIES EA2/EB2 SERIES EA2/EB2 SERIES EA2/EB2 SERIES EA2/EB2 SERIES Miniature Signal Relays – EA2/EB2 PERFORMANCE DATA PERFORMANCE DATA Performance Data PERFORMANCE DATA PERFORMANCE DATA PERFORMANCE DATA PERFORMANCE DATA Coil Temperature Rise COIL TEMPERATURE RISE COIL TEMPERATURE RISE COIL TEMPERATURE RISE COIL TEMPERATURE RISE Temperature is measured by coil resistance... - Page 10 Miniature Signal Relays – EA2/EB2 EA2/EBE2 SERIES EA2/EBE2 SERIES EA2/EBE2 SERIES Performance Data cont. Operate and Release Voltage vs. Ambient Temperature OPERATE AND RELEASE VOLTAGE VS.AMBIENT TEMPERATURE This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be This shows a typical change of operate (release) voltage.
- Page 11 EA2/EB2 SERIES Miniature Signal Relays – EA2/EB2 EA2/EB2 SERIES EA2/EB2 SERIES Performance Data cont. BREAKDOWN VOLTAGE Breakdown Voltage Sample: EA2-5NU 10peices BREAKDOWN VOLTAGE BREAKDOWN VOLTAGE Sample: EA2-5NU 10peices Sample: EA2-5NU 10peices (Sample: EA2–5NU, 10 pieces) (a) Between open contacts (b) Between adjacent contacts (a) Between open contacts (a) Between open contacts (b) Between adjacent contacts...
- Page 12 Miniature Signal Relays – EA2/EB2 Tube Packing – Millimeters 40 pieces/Tube (anti-static) 12.0 13.7 Direction of relay direction mark Rubber stopper (Green) Rubber stopper (Red) Tape & Reel Packaging Information (EB2 only) – Millimeters Appearance Reel 750 pieces / Reel Reel 750 pieces / Reel Reel diameter: 380mm...
- Page 13 NOTE ON CORRECT USE 1. Notes on contact load at a temperature outside this range may adversely affect Make sure that the contact load is within the specified range; insulation or contact performance. Miniature Signal Relays – EA2/EB2 otherwise, the lifetime of the contacts will be shortened - If the relay is used for a long period of time in highly humid considerably.
- Page 14 ctual operating conditions. acid. If this happens, the acid produced may corrode the ng the actual circuit before metallic parts of the relay, causing operational malfunction. f any material containing silicon (silicon rubber, silicon oil, and silicon based coating material) is used in the am of a relay shows + and - neighborhood of relay, there is some possibility that these rated voltage to the relay in...
- Page 15 Miniature Signal Relays – EA2/EB2 Notes on Using Relays cont. 5. Handling and Storage • Relays are packaged in magazine cases for shipment. If a space is created in the case after some relays have been removed, be sure to insert a stopper to secure the remaining relays in the case. If relays are not well secured, vibration during transportation may cause malfunctioning of the contacts.
- Page 16 Miniature Signal Relays – EA2/EB2 KEMET Electronics Corporation Sales Offi ces For a complete list of our global sales offi ces, please visit www.kemet.com/sales. Disclaimer All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
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