PR1002GL-T Equivalent & Substitute Parts

Part Overview

The PR1002GL-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 1 A average rectified current in a through-hole DO-41 package. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging and supplier options.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the PR1002GL-T is determined by the following critical parameters:

Voltage Rating: The substitute must support a minimum DC reverse voltage of 100 V. Parts rated at lower voltages (such as 50 V) are not suitable for direct substitution in circuits designed for 100 V operation.

Current Rating: The substitute must support a minimum average rectified current of 1 A. Current ratings equal to or exceeding 1 A are acceptable.

Speed Classification: The PR1002GL-T is classified as fast recovery with a reverse recovery time of 150 ns. Substitutes may be either fast recovery or standard recovery, as standard recovery diodes (>500 ns) are functionally compatible in general-purpose applications where switching speed is not a critical constraint.

Forward Voltage: Forward voltage drop at 1 A ranges from 1.0 V to 1.3 V across the substitute population. Variations within this range do not preclude substitution in general-purpose rectification circuits.

Package Compatibility: Through-hole mounting is required. DO-41 and DO-204AL packages are mechanically and electrically equivalent for this application.

Thermal Rating: Operating junction temperature ranges from -55°C to 175°C across the substitute population. The PR1002GL-T operates from -65°C to 150°C. Substitutes with extended upper temperature limits (175°C) provide enhanced thermal margin.

Compliance: All substitutes must maintain ROHS3 compliance and REACH unaffected status to ensure regulatory alignment.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [V]	Speed	trr [ns]	Package	Tj (°C)	Status
PR1002GL-T	Diodes Incorporated	100	1	1.3	Fast Recovery ≤ 500ns	150	DO-41	-65 to 150	Obsolete
PR1002G-T	Diodes Incorporated	100	1	1.3	Fast Recovery ≤ 500ns	150	DO-41	-65 to 150	Active
RGP10B-E3/54	Vishay General Semiconductor	100	1	1.3	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active
RGP10BE-E3/54	Vishay General Semiconductor	100	1	1.3	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active
RGP10B	Fairchild Semiconductor	100	1	1.3	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active
1N4002-E3/73	Vishay General Semiconductor	100	1	1.1	Standard Recovery >500ns	-	DO-204AL (DO-41)	-55 to 150	Active
1N4002-TP	Micro Commercial Co	100	1	1.1	Standard Recovery >500ns	2000	DO-41	-55 to 150	Not For New Designs
1N4002G	Taiwan Semiconductor Corporation	100	1	1.0	Standard Recovery >500ns	-	DO-204AL (DO-41)	-55 to 150	Active
1N4002GP-E3/54	Vishay General Semiconductor	100	1	1.1	Standard Recovery >500ns	2000	DO-204AL (DO-41)	-65 to 175	Active
1N4002RLG	onsemi	100	1	1.1	Standard Recovery >500ns	-	Axial	-65 to 175	Not For New Designs
RGP10A-E3/54	Vishay General Semiconductor	50	1	1.3	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active

Engineering Selection Recommendations

Primary Substitutes (Electrical and Thermal Equivalence):

PR1002G-T is the direct active equivalent from Diodes Incorporated. It maintains identical electrical specifications and thermal range as the PR1002GL-T, with the distinction of active product status and tape & reel packaging availability.

RGP10B-E3/54, RGP10BE-E3/54, and RGP10B from Vishay General Semiconductor and Fairchild Semiconductor are functionally equivalent fast-recovery diodes with extended operating temperature range (-65°C to 175°C). These parts are suitable for applications where thermal margin is beneficial.

Secondary Substitutes (Standard Recovery, Voltage and Current Compatible):

1N4002-E3/73, 1N4002G, 1N4002GP-E3/54, and 1N4002RLG are standard-recovery general-purpose rectifier diodes rated for 100 V and 1 A. These parts are suitable for applications where switching speed is not a critical design parameter. Forward voltage drop is lower (1.0 V to 1.1 V) compared to the PR1002GL-T (1.3 V), resulting in reduced power dissipation.

1N4002-TP and 1N4002RLG carry "Not For New Designs" status and should be used only for legacy system maintenance where original part specifications are required.

Not Recommended:

RGP10A-E3/54 is rated for 50 V maximum reverse voltage and is not suitable for direct substitution in circuits designed for 100 V operation.

Frequently Asked Questions (FAQ)

Q: Can the PR1002G-T directly replace the PR1002GL-T?

A: Yes. The PR1002G-T is the active equivalent from the same manufacturer with identical electrical specifications, voltage rating, current rating, and thermal range. The primary difference is packaging format (tape & reel versus bulk) and active product status.

Q: What is the difference between fast-recovery and standard-recovery diodes in this application?

A: Fast-recovery diodes (150 ns reverse recovery time) are optimized for high-frequency switching applications. Standard-recovery diodes (>500 ns) are suitable for general-purpose rectification at line frequencies and lower switching speeds. Both types meet the 100 V, 1 A electrical requirements of the PR1002GL-T. Selection depends on circuit switching frequency requirements.

Q: Can I use 1N4002 series diodes as substitutes?

A: Yes, with the understanding that 1N4002 series diodes are standard-recovery types with longer reverse recovery times (2 µs typical) compared to the PR1002GL-T (150 ns). They are electrically compatible for 100 V, 1 A applications where switching speed is not critical. Forward voltage drop is lower (1.0 V to 1.1 V), which may reduce power dissipation in the circuit.

Q: Are DO-41 and DO-204AL packages interchangeable?

A: Yes. DO-41 and DO-204AL are equivalent package designations for axial through-hole diodes. Both refer to the same physical form factor and pin configuration. Mechanical and electrical compatibility is maintained across these package types.

Q: Why is RGP10A-E3/54 not recommended as a substitute?

A: RGP10A-E3/54 is rated for 50 V maximum reverse voltage, whereas the PR1002GL-T is rated for 100 V. Using a 50 V diode in a circuit designed for 100 V operation creates risk of diode failure and circuit malfunction. Voltage rating must equal or exceed the design specification.

Q: What compliance certifications should I verify when selecting a substitute?

A: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, consistent with the PR1002GL-T. These certifications ensure regulatory alignment for commercial and industrial applications. Verify compliance status with the supplier for the specific part number and manufacturing date code.

Q: Does operating temperature range affect substitution suitability?

A: Operating temperature range affects suitability only if the application requires operation outside the specified range. The PR1002GL-T operates from -65°C to 150°C. Substitutes with extended upper temperature limits (175°C) provide additional thermal margin but are not required unless the application demands it. Lower temperature limits (-55°C minimum) are acceptable if the application does not require operation below -55°C.

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