GL34J/1 Equivalent & Substitute Parts

Part Overview

The GL34J/1 is a surface mount rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, part of the SUPERECTIFIER® series. This component is rated for 600 V DC reverse voltage with 500 mA average rectified current in a DO-213AA (MiniMELF) package. The GL34J/1 is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical electrical performance and mechanical compatibility while offering active product status and improved compliance certifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	1.3 @ 500 mA	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Package / Case	DO-213AA (Glass)	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-65 to 175	°C

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the GL34J/1:

Parametric Equivalents (Vishay GL34 Series): Parts GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, and GL34JHE3/98 are direct parametric equivalents manufactured by Vishay. These parts maintain identical electrical specifications across all critical parameters: 600 V reverse voltage, 500 mA average rectified current, 1.3 V forward voltage at 500 mA, 1.5 µs reverse recovery time, and 5 µA reverse leakage current at 600 V. All parametric equivalents use the DO-213AA package and operate across the -65°C to 175°C junction temperature range. The primary differences among these equivalents are packaging format (Cut Tape, Digi-Reel, or Tape & Reel) and product status (all active versus obsolete main part). All Vishay equivalents are ROHS3 compliant.

Manufacturer Recommended Substitute (Microchip 1N649UR-1): The 1N649UR-1 is a Microchip Technology alternative rated for 600 V reverse voltage in the same DO-213AA package. This part differs in average rectified current (400 mA versus 500 mA), forward voltage (1 V @ 400 mA), and reverse leakage current (50 nA @ 600 V). The 1N649UR-1 is suitable for applications where the 400 mA current rating is sufficient and lower reverse leakage is beneficial.

Substitution eligibility is determined by matching voltage rating (600 V), package type (DO-213AA), mounting method (surface mount), and temperature range (-65°C to 175°C). Current rating and leakage specifications must meet or exceed application requirements.

Parameter Comparison

Parameter	GL34J/1	GL34J-E3/83	GL34J-E3/98	GL34JHE3/83	GL34JHE3/98	1N649UR-1
Manufacturer	Vishay	Vishay	Vishay	Vishay	Vishay	Microchip
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	500 mA	500 mA	500 mA	500 mA	500 mA	400 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA	1.3 V @ 500 mA	1 V @ 400 mA
Reverse Recovery Time (trr)	1.5 µs	1.5 µs	1.5 µs	1.5 µs	1.5 µs	>500 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	5 µA @ 600 V	50 nA @ 600 V
Package / Case	DO-213AA	DO-213AA	DO-213AA	DO-213AA	DO-213AA	DO-213AA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65 to 175°C	-65 to 175°C	-65 to 175°C	-65 to 175°C	-65 to 175°C	-65 to 175°C
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Non-compliant

Engineering Selection Recommendations

Primary Recommendation - Vishay GL34 Series Parametric Equivalents: The GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, and GL34JHE3/98 are direct functional replacements for the GL34J/1. These parts maintain 100% electrical parameter compatibility and are manufactured by the original equipment supplier. All four variants are active products with ROHS3 compliance certification. Selection among these four equivalents is determined by packaging requirements: GL34J-E3/83 is supplied in Cut Tape and Digi-Reel format; GL34J-E3/98 is supplied in Tape & Reel format; GL34JHE3/83 and GL34JHE3/98 follow similar packaging conventions. The GL34JHE3/98 variant offers the highest inventory availability (55,100 pieces) for high-volume production requirements.

Secondary Recommendation - Microchip 1N649UR-1: The 1N649UR-1 is suitable for applications where the 400 mA average rectified current rating is sufficient and lower reverse leakage current (50 nA versus 5 µA) provides design advantages. This part maintains the 600 V voltage rating and DO-213AA package compatibility. The 1N649UR-1 is an active product but does not carry ROHS3 compliance certification. Use this substitute only when current requirements do not exceed 400 mA and RoHS compliance is not mandated.

Compliance Consideration: For applications requiring RoHS3 compliance, the Vishay GL34 series parametric equivalents are the only suitable options. The GL34J/1 and 1N649UR-1 are both non-compliant with RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, and GL34JHE3/98 be used interchangeably with GL34J/1?

A: Yes. These four Vishay parts are parametric equivalents with identical electrical specifications: 600 V reverse voltage, 500 mA average rectified current, 1.3 V forward voltage at 500 mA, 1.5 µs reverse recovery time, and 5 µA reverse leakage current. All use the DO-213AA package and operate across -65°C to 175°C. Selection is based on packaging format and inventory availability, not electrical performance.

Q: What is the difference between GL34J-E3/83 and GL34J-E3/98?

A: The primary difference is packaging format. GL34J-E3/83 is supplied in Cut Tape and Digi-Reel format, while GL34J-E3/98 is supplied in Tape & Reel format. Electrical specifications and performance are identical. Selection depends on assembly line equipment compatibility and procurement preferences.

Q: Can the Microchip 1N649UR-1 replace the GL34J/1 in all applications?

A: The 1N649UR-1 is suitable only for applications where the average rectified current requirement does not exceed 400 mA. The GL34J/1 is rated for 500 mA. If your application requires the full 500 mA current capacity, the 1N649UR-1 is not appropriate. Additionally, the 1N649UR-1 does not carry ROHS3 compliance certification.

Q: Are all substitute parts available in the same packaging as GL34J/1?

A: All substitute parts use the DO-213AA (MiniMELF) package, which is mechanically and electrically compatible with GL34J/1. However, packaging formats (Cut Tape, Digi-Reel, Tape & Reel, or Bulk) vary among substitutes. Verify that the selected substitute's packaging format is compatible with your assembly process.

Q: Why is GL34J/1 classified as obsolete?

A: The GL34J/1 is obsolete, meaning Vishay has discontinued active production and support. The active equivalents (GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, GL34JHE3/98) are the current production alternatives that maintain identical electrical performance and are recommended for new designs and ongoing production.

Q: Do all substitute parts meet RoHS3 compliance?

A: The four Vishay GL34 series equivalents (GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, GL34JHE3/98) are ROHS3 compliant. The Microchip 1N649UR-1 is not RoHS compliant. If RoHS3 compliance is required, use only the Vishay equivalents.

Q: What is the difference in reverse leakage current between GL34J/1 and 1N649UR-1?

A: GL34J/1 has a reverse leakage current of 5 µA at 600 V, while 1N649UR-1 has 50 nA at 600 V. The 1N649UR-1 exhibits significantly lower leakage, which may be beneficial in high-impedance or precision applications. However, this advantage is offset by the lower current rating (400 mA versus 500 mA).

Q: Can I mix different substitute part numbers in the same production batch?

A: Yes. All four Vishay GL34 series equivalents are electrically and mechanically identical. Mixing GL34J-E3/83, GL34J-E3/98, GL34JHE3/83, and GL34JHE3/98 in the same production batch does not affect circuit performance. However, verify that your assembly process can accommodate the different packaging formats if multiple variants are used.

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