GL34J-TP Equivalent & Substitute Parts

Part Overview

The GL34J-TP is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 500 mA average rectified current in a Surface Mount Mini MELF package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA
Speed	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the GL34J-TP is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 600 V
Current - Average Rectified (Io): Must equal or exceed 500 mA
Voltage - Forward (Vf) (Max) @ If: Must not exceed 1.3 V @ 500 mA
Current - Reverse Leakage @ Vr: Must not exceed 5 µA @ 600 V
Operating Temperature - Junction: Must span -65°C ~ 175°C

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount
Package / Case: DO-213AA (Glass) or equivalent form factor

Compliance Criteria:

RoHS Status: ROHS3 Compliant preferred
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are classified into two categories:

Direct Equivalents (GL34J-E3/83, GL34J-E3/98, RGL34J-E3/83, RGL34J-E3/98): These parts meet all electrical parameters and are manufactured by Vishay General Semiconductor - Diodes Division. They are available in active product status with ROHS3 compliance. The GL34J variants feature standard recovery characteristics, while the RGL34J variants feature fast recovery characteristics (250 ns trr).

Similar Substitute (1N649UR-1): This part meets the voltage and temperature requirements but operates at 400 mA average rectified current (below the 500 mA specification) and features improved reverse leakage characteristics (50 nA vs. 5 µA). This part is non-compliant with RoHS requirements.

Parameter Comparison

Parameter	GL34J-TP (Main)	GL34J-E3/83	GL34J-E3/98	RGL34J-E3/83	RGL34J-E3/98	1N649UR-1
Manufacturer	Micro Commercial Co	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active	Active
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
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)	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr)	-	1.5 µs	1.5 µs	250 ns	250 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
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AA (Glass)	DO-213AA (Glass)	DO-213AA (Glass)	DO-213AA (Glass)	DO-213AA (Glass)
Operating Temperature - Junction	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C	-65°C ~ 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant
Packaging Type	-	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Bulk

Engineering Selection Recommendations

Primary Substitutes (GL34J-E3/83, GL34J-E3/98, RGL34J-E3/83, RGL34J-E3/98):

The Vishay General Semiconductor diodes GL34J-E3/83, GL34J-E3/98, RGL34J-E3/83, and RGL34J-E3/98 are direct functional equivalents to the GL34J-TP. All four parts are manufactured by an active supplier, carry ROHS3 compliance certification, and meet or exceed all electrical specifications. These parts are available in high inventory quantities and are suitable for new production designs and field replacements.

Selection between GL34J and RGL34J variants depends on recovery speed requirements. The GL34J variants feature standard recovery characteristics (>500 ns), matching the GL34J-TP specification. The RGL34J variants feature fast recovery characteristics (250 ns), which provide improved switching performance in high-frequency applications but are not required for standard GL34J-TP replacement.

Selection between /83 and /98 packaging variants depends on procurement and assembly requirements. The /83 variant is supplied in Cut Tape (CT) & Digi-Reel® format, while the /98 variant is supplied in Tape & Reel (TR) format. Both packaging formats are suitable for automated assembly processes.

Secondary Substitute (1N649UR-1):

The Microchip Technology 1N649UR-1 is a similar substitute that meets the 600 V voltage and temperature specifications but operates at 400 mA average rectified current, which is below the GL34J-TP 500 mA specification. This part is not compliant with RoHS requirements. The 1N649UR-1 is suitable only for applications where the 400 mA current rating is sufficient and RoHS compliance is not mandated.

Frequently Asked Questions (FAQ)

Q: Can GL34J-E3/83 and GL34J-E3/98 be used interchangeably with GL34J-TP?

A: Yes. Both parts are electrically and mechanically equivalent to GL34J-TP. The difference between /83 and /98 variants is packaging format only (Cut Tape vs. Tape & Reel). Selection depends on procurement and assembly line requirements, not electrical performance.

Q: What is the difference between GL34J and RGL34J variants?

A: The GL34J variants feature standard recovery characteristics (>500 ns reverse recovery time), while the RGL34J variants feature fast recovery characteristics (250 ns reverse recovery time). Both meet the GL34J-TP specification for standard recovery. The RGL34J variants provide improved switching performance in high-frequency applications but are not required for direct GL34J-TP replacement.

Q: Is the 1N649UR-1 a suitable replacement for GL34J-TP?

A: The 1N649UR-1 is a similar substitute only for applications where the 400 mA current rating is sufficient. The GL34J-TP is rated for 500 mA, and the 1N649UR-1 operates at 400 mA, representing a 20% reduction in current capacity. Additionally, the 1N649UR-1 is not RoHS compliant. Use this part only when current requirements do not exceed 400 mA and RoHS compliance is not required.

Q: What is the package compatibility between GL34J-TP and substitute parts?

A: The GL34J-TP is specified in DO-213AC (MINI-MELF, SOD-80) package. The substitute parts from Vishay (GL34J-E3/83, GL34J-E3/98, RGL34J-E3/83, RGL34J-E3/98) and Microchip (1N649UR-1) are specified in DO-213AA (Glass) package. Both package types are surface mount form factors with compatible footprints for standard PCB assembly processes.

Q: Are all substitute parts RoHS compliant?

A: The Vishay parts (GL34J-E3/83, GL34J-E3/98, RGL34J-E3/83, RGL34J-E3/98) are ROHS3 compliant. The Microchip 1N649UR-1 is RoHS non-compliant. For applications requiring RoHS compliance, use only the Vishay substitute parts.

Q: What inventory availability should be expected for substitute parts?

A: GL34J-E3/83 has 1525 pcs in stock, GL34J-E3/98 has 7307 pcs in stock, RGL34J-E3/83 has 1350 pcs in stock, RGL34J-E3/98 has 1510 pcs in stock, and 1N649UR-1 has 1185 pcs in stock. All substitute parts are available in active inventory from authorized distributors.

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