GL41M/54 Equivalent & Substitute Parts

Part Overview

The GL41M/54 is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a DO-213AB surface mount package. Manufactured by Vishay General Semiconductor - Diodes Division as part of the SUPERECTIFIER® series, this component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements. Active alternatives maintain the same electrical specifications and package form factor while offering improved compliance certifications and manufacturing support.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.2 @ 1	V @ A
Current - Reverse Leakage @ Vr	10	µA @ 1000 V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Capacitance @ Vr, F	8	pF @ 4V, 1MHz
Package / Case	DO-213AB, MELF (Glass)	—
Operating Temperature - Junction	-65 to 175	°C
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the GL41M/54 is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 1 A
Current - Reverse Leakage @ Vr: 10 µA @ 1000 V
Speed: Standard Recovery >500ns, > 200mA (Io)
Capacitance @ Vr, F: 8 pF @ 4V, 1MHz
Package / Case: DO-213AB, MELF (Glass)
Operating Temperature - Junction: -65°C to 175°C
Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Category 1: Vishay GL41 Series (Standard Technology) Parts GL41MHE3/97, GL41M-E3/96, and GL41M-E3/97 are direct equivalents using standard rectifier technology. These parts maintain identical electrical specifications and package form factor. All are active products with RoHS3 compliance.

Category 2: Vishay BYM10 Series (Avalanche Technology) Parts BYM10-1000-E3/96, BYM10-1000-E3/97, BYM10-1000/1, BYM10-1000HE3/96, and BYM10-1000HE3/97 are parametric equivalents using avalanche technology. These parts meet all electrical specifications and package requirements. All are active products with RoHS3 compliance.

Category 3: Microchip 1N5623US (Alternative Manufacturer) The 1N5623US from Microchip Technology meets the core electrical specifications (1000 V, 1 A) but uses a different package designation (D-5A, SQ-MELF, A) and exhibits different secondary characteristics (forward voltage at 3 A, faster recovery time, different capacitance). This part is included as a functional alternative for applications where package compatibility is not a constraint.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Ir @ Vr [µA @ V]	Speed	Package	Status	RoHS
GL41M/54	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Obsolete	Non-compliant
GL41MHE3/97	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
GL41M-E3/96	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
GL41M-E3/97	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
BYM10-1000-E3/96	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
BYM10-1000-E3/97	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
BYM10-1000/1	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
BYM10-1000HE3/96	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
BYM10-1000HE3/97	Vishay	1000	1	1.2 @ 1	10 @ 1000	Standard >500ns	DO-213AB	Active	RoHS3
1N5623US	Microchip	1000	1	1.6 @ 3	0.5 @ 1000	Fast ≤500ns	D-5A	Active	Non-compliant

Engineering Selection Recommendations

Primary Recommendation: Vishay GL41 Series (GL41MHE3/97, GL41M-E3/96, GL41M-E3/97)

The GL41 series represents the direct functional equivalent to the obsolete GL41M/54. These parts maintain identical electrical specifications, package form factor, and mounting characteristics. All GL41 alternatives are active products with RoHS3 compliance, ensuring long-term availability and regulatory alignment. The GL41M-E3/97 variant offers the highest inventory availability (10,400 units) and is packaged in Tape & Reel format suitable for automated assembly.

Secondary Recommendation: Vishay BYM10 Series (BYM10-1000-E3/96, BYM10-1000-E3/97, BYM10-1000/1, BYM10-1000HE3/96, BYM10-1000HE3/97)

The BYM10 series provides parametric equivalence with identical electrical performance across all critical specifications. These parts employ avalanche technology and are active products with RoHS3 compliance. The BYM10-1000-E3/97 variant offers strong inventory availability (1,236 units) in Tape & Reel packaging. Selection between GL41 and BYM10 series depends on technology preference and packaging requirements, as both meet all electrical and mechanical substitution criteria.

Alternative Consideration: Microchip 1N5623US

The 1N5623US meets the core voltage and current ratings (1000 V, 1 A) and is an active product. However, this part uses a different package designation (D-5A versus DO-213AB) and exhibits different secondary electrical characteristics (forward voltage measured at 3 A rather than 1 A, faster recovery time, different capacitance). Selection of this part requires confirmation that the alternative package form factor is compatible with the target application's PCB layout and assembly process.

Frequently Asked Questions (FAQ)

Q: Can GL41M/54 be directly replaced with GL41MHE3/97?

A: Yes. GL41MHE3/97 is a direct equivalent with identical electrical specifications (1000 V, 1 A, 1.2 V forward voltage, 10 µA reverse leakage) and the same DO-213AB package. The primary difference is product status (active versus obsolete) and compliance certification (RoHS3 compliant). No circuit modifications are required.

Q: What is the difference between GL41 and BYM10 series substitutes?

A: Both series meet all electrical specifications and package requirements. The GL41 series uses standard rectifier technology, while the BYM10 series uses avalanche technology. From an electrical performance standpoint, both are equivalent for the specified parameters. Selection depends on design preference and availability. All variants are active products with RoHS3 compliance.

Q: Why does the Microchip 1N5623US have different forward voltage and capacitance specifications?

A: The 1N5623US uses a different package designation (D-5A, SQ-MELF, A) and exhibits different secondary characteristics. Forward voltage is specified at 3 A rather than 1 A, and capacitance is measured at 12 V rather than 4 V. These differences reflect the part's design and measurement conditions. The core specifications (1000 V reverse voltage, 1 A average rectified current) remain equivalent.

Q: Is the Microchip 1N5623US a suitable substitute if my PCB is designed for DO-213AB packages?

A: The 1N5623US uses a D-5A package (SQ-MELF, A), which differs from the DO-213AB package of the GL41M/54. While both are surface mount MELF-style packages, physical dimensions and PCB footprints may differ. Confirmation of mechanical compatibility with your PCB layout is required before selection.

Q: Which substitute part has the best inventory availability?

A: GL41M-E3/97 offers the highest inventory availability with 10,400 units in stock, packaged in Tape & Reel format. This variant is suitable for high-volume production requirements and automated assembly processes.

Q: Are all substitute parts RoHS3 compliant?

A: All Vishay GL41 and BYM10 series substitutes are RoHS3 compliant. The Microchip 1N5623US is not RoHS compliant. If RoHS compliance is a design requirement, selection must be limited to the Vishay alternatives.

Q: What packaging options are available for the substitute parts?

A: Vishay GL41 series parts are available in Tape & Reel (TR) packaging. Vishay BYM10 series parts are available in Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR), or bulk packaging depending on the specific variant. Microchip 1N5623US is available in bulk packaging. Selection should align with your assembly process requirements.

Q: Can I use BYM10-1000/1 as a drop-in replacement for GL41M/54?

A: Yes. BYM10-1000/1 meets all electrical specifications and uses the same DO-213AB package. It is an active product with RoHS3 compliance. No circuit modifications are required for substitution.

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