KEMET EB2-4.5NU-L General Purpose Relay DPDT Equivalent & Substitute Parts

Part Overview

The KEMET EB2-4.5NU-L is an active general purpose relay with DPDT (2 Form C) contact configuration, designed for surface mount applications. This relay operates at 4.5VDC coil voltage with 1A contact rating and is suitable for switching applications up to 250VAC or 220VDC. The part is ROHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the KEMET relay series, enabling component interchangeability for procurement flexibility and inventory optimization.

Substiute Parts

EB2-4.5NU-L

KEMETIn Stock: 1120EB2-4.5NU-L Datasheet

Current PartRFQ

UB2-4.5NUN-L

KEMETIn Stock: 5514UB2-4.5NUN-L Datasheet

Parametric EquivalentRFQ

UD2-4.5NU-L

KEMETIn Stock: 4099UD2-4.5NU-L Datasheet

Parametric EquivalentRFQ

UD2-4.5NUN-L

KEMETIn Stock: 3160UD2-4.5NUN-L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EB2-4.5NU-L are identified based on strict electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters: coil voltage (4.5VDC), contact form (DPDT 2 Form C), contact rating (1A), switching voltage (250VAC/220VDC), coil current (31 mA), non-latching coil type, gull wing termination, operating voltage thresholds (3.38VDC must operate, 0.45VDC must release), switching times (2ms operate, 1ms release), operating temperature range (-40°C to 85°C), contact materials (Silver Alloy and Gold Alloy), and coil resistance (145 Ohms).

The substitute parts differ only in series designation (UB2 and UD2 versus EB2) and packaging format (Cut Tape versus Tape & Reel). All substitute parts maintain Active product status, ROHS3 compliance, MSL 1 rating, and identical regulatory classifications (REACH Unaffected, ECCN EAR99, HTSUS 8536.41.0020).

Parameter Comparison

Engineering Selection Recommendations

All substitute parts (UB2-4.5NUN-L, UD2-4.5NU-L, UD2-4.5NUN-L) are electrically and mechanically equivalent to the EB2-4.5NU-L. Selection between these parts is determined by packaging requirements and inventory availability.

Tape & Reel (TR) Packaging: EB2-4.5NU-L and UD2-4.5NU-L are supplied in Tape & Reel format, suitable for automated assembly processes. Current inventory: EB2-4.5NU-L (1047 pcs), UD2-4.5NU-L (4013 pcs).

Cut Tape (CT) Packaging: UB2-4.5NUN-L and UD2-4.5NUN-L are supplied in Cut Tape format, suitable for manual assembly or lower-volume applications. Current inventory: UB2-4.5NUN-L (5502 pcs), UD2-4.5NUN-L (3091 pcs).

All parts maintain Active product status and full ROHS3 compliance. No technical performance differences exist between substitute parts; selection is based on packaging format and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can EB2-4.5NU-L be replaced with UB2-4.5NUN-L or UD2 series relays?

A: Yes. All substitute parts maintain identical electrical specifications including 4.5VDC coil voltage, DPDT contact form, 1A contact rating, 250VAC/220VDC switching voltage, 31mA coil current, 145 Ohm coil resistance, and identical switching times (2ms operate, 1ms release). The only differences are series designation and packaging format.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is used for high-volume automated assembly processes where components are fed directly into pick-and-place machines. Cut Tape (CT) packaging provides individual component strips suitable for manual assembly or lower-volume applications. Electrical and mechanical performance is identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. EB2-4.5NU-L, UB2-4.5NUN-L, UD2-4.5NU-L, and UD2-4.5NUN-L are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Do substitute parts have the same operating temperature range?

A: Yes. All parts operate across -40°C to 85°C temperature range with identical must-operate voltage (3.38VDC) and must-release voltage (0.45VDC) specifications.

Q: Which substitute part has the highest current inventory?

A: UB2-4.5NUN-L (Cut Tape format) has the highest inventory at 5502 pieces, followed by UD2-4.5NU-L (Tape & Reel format) at 4013 pieces.

Q: Are contact materials identical across all substitute parts?

A: Yes. All parts use Silver Alloy and Gold Alloy contact materials, ensuring equivalent switching performance and contact reliability.