EM2A Equivalent & Substitute Parts Reference Guide

Part Overview

The EM2A from Sanken Electric USA Inc. is a standard recovery general-purpose rectifier diode, rated at 600 V DC reverse voltage and 1.2A average rectified current, encapsulated in an axial through-hole package. Its RoHS compliance and active product status support applications requiring reliable performance and regulatory conformity. Sourcing equivalent and substitute parts is necessary to address supply limitations, design flexibility, and inventory strategies, ensuring ongoing manufacturing and servicing capability.

Key Parameters

Parameter	Value
Manufacturer Part Number	EM2A
Category	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	1.2A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1.2A
Speed	Standard Recovery >500ns, >200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Mounting Type	Through Hole
Package / Case	Axial
Operating Temperature - Junction	-40°C ~ 150°C
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are selected based strictly on matching critical electrical and mechanical parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): ≥1.2A
Through-hole, axial package configuration
Standard recovery or compatible speed class
RoHS or equivalent compliance
Active product status

All substitute rectifier diodes listed fulfill these requirements based on supplied parameters.

Parameter Comparison

Parameter	Main: EM2A	1N5397-E3/54	GP15J-E3/54	RGP15J-E3/54	RGP15J-E3/73
Manufacturer	Sanken Electric USA Inc.	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1.2A	1.5A	1.5A	1.5A	1.5A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1.2A	1.4 V @ 1.5A	1.1 V @ 1.5A	1.3 V @ 1.5A	1.3 V @ 1.5A
Speed	Standard Recovery >500ns, >200mA (Io)	Standard Recovery >500ns, >200mA (Io)	Standard Recovery >500ns, >200mA (Io)	Fast Recovery =<500ns, >200mA (Io)	Fast Recovery =<500ns, >200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Axial	DO-204AL, DO-41, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-40°C ~ 150°C	-50°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute diodes listed are in active production and carry RoHS or ROHS3 compliance. The moisture sensitivity level (MSL) is 1 (Unlimited) for all, indicating no special handling for moisture protection. Substitute selections can be made based on these product status and compliance attributes as provided.

Frequently Asked Questions (FAQ)

Q1: What determines if a rectifier diode is a valid substitute for the Sanken EM2A?
A: Substitute diodes must match or exceed the voltage (600 V) and current (1.2A) ratings, have a through-hole axial package, and share standard or compatible recovery characteristics.

Q2: Are the physical package types directly interchangeable?
A: All listed parts use through-hole, axial packages DO-41 or DO-15, which conform to common lead and body geometries within the category specified.

Q3: Is there any difference in product compliance or RoHS status across these parts?
A: All the referenced diodes are RoHS or ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), which aligns them for direct substitution from a compliance perspective.

Q4: How does recovery speed affect substitution?
A: Substitute parts listed have standard or compatible (standard/fast) recovery characteristics as specified in the provided parameters.

Q5: Can these substitute parts operate over the same temperature range as the EM2A?
A: All substitutes are rated for similar or wider junction temperature ranges as indicated, ensuring thermal compatibility in designs constrained to the original EM2A’s operating range.

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