PR1002G-T Equivalent & Substitute Parts

Part Overview

The PR1002G-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 fast recovery diode features a reverse recovery time of 150 ns and operates across a junction temperature range of -65°C to 150°C. The part is Active in product status and RoHS3 compliant.

Equivalent and substitute parts are identified based on matching electrical specifications (voltage rating, current rating, recovery speed characteristics) and mechanical compatibility (through-hole axial mounting, DO-41/DO-204AL package family). Substitutes are necessary when the primary part is unavailable, when alternative packaging formats are required, or when design requirements permit operation within the specified parameter ranges of equivalent devices.

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	V
Speed	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 logic for the PR1002G-T is based on the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1 A minimum
Mounting Type: Through Hole
Package / Case: DO-41, DO-204AL, or Axial variants

Recovery Speed Classification: Substitute parts are grouped into two categories based on reverse recovery characteristics:

Fast Recovery Equivalents (trr ≤ 500 ns): Direct functional equivalents with identical switching performance to PR1002G-T. These parts maintain the fast recovery specification and are suitable for applications requiring rapid diode turn-off.
Standard Recovery Alternatives (trr > 500 ns): Parts meeting voltage and current ratings but with slower recovery characteristics. These are suitable for applications where switching speed is not a critical constraint.

Compliance and Status Considerations:

RoHS3 compliance status
Product status (Active vs. Not For New Designs)
Operating temperature range capability

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	trr [ns]	Package	Temp Range [°C]	Product Status	RoHS3
PR1002G-T	Diodes Incorporated	100	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-41	-65 to 150	Active	Yes
RGP10B	Fairchild Semiconductor	100	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active	-
RGP10B-E3/54	Vishay General Semiconductor - Diodes Division	100	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active	Yes
RGP10BE-E3/54	Vishay General Semiconductor - Diodes Division	100	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-204AL (DO-41)	-65 to 175	Active	Yes
RGP10A	Fairchild Semiconductor	50	1	1.3 @ 1 A	Fast Recovery ≤ 500ns	150	DO-41	-65 to 175	Active	-
1N4002-E3/73	Vishay General Semiconductor - Diodes Division	100	1	1.1 @ 1 A	Standard Recovery > 500ns	-	DO-204AL (DO-41)	-55 to 150	Active	Yes
1N4002-TP	Micro Commercial Co	100	1	1.1 @ 1 A	Standard Recovery > 500ns	2000	DO-41	-55 to 150	Not For New Designs	Yes
1N4002G	Taiwan Semiconductor Corporation	100	1	1.0 @ 1 A	Standard Recovery > 500ns	-	DO-204AL (DO-41)	-55 to 150	Active	Yes
1N4002GP-E3/54	Vishay General Semiconductor - Diodes Division	100	1	1.1 @ 1 A	Standard Recovery > 500ns	2000	DO-204AL (DO-41)	-65 to 175	Active	Yes
1N4002RLG	onsemi	100	1	1.1 @ 1 A	Standard Recovery > 500ns	-	Axial	-65 to 175	Not For New Designs	Yes
1N4934G	Taiwan Semiconductor Corporation	100	1	1.2 @ 1 A	Fast Recovery ≤ 500ns	200	DO-204AL (DO-41)	-55 to 150	Active	Yes

Engineering Selection Recommendations

Direct Electrical Equivalents (Fast Recovery Category):

RGP10B-E3/54 and RGP10BE-E3/54 from Vishay General Semiconductor are direct functional equivalents to PR1002G-T. Both parts maintain identical electrical specifications (100 V, 1 A, 150 ns recovery time, 1.3 V forward voltage) and are Active in product status with RoHS3 compliance. These parts are suitable for direct substitution in applications where fast recovery performance is required. The extended operating temperature range (-65°C to 175°C) provides additional thermal margin compared to the primary part.

RGP10B from Fairchild Semiconductor matches all electrical parameters and recovery characteristics but lacks documented RoHS3 compliance status. This part is suitable for applications where compliance documentation is not required.

1N4934G from Taiwan Semiconductor Corporation is an Active, RoHS3-compliant fast recovery diode with 100 V and 1 A ratings. The reverse recovery time of 200 ns is within the fast recovery specification (≤ 500 ns) and provides equivalent switching performance. Operating temperature range is -55°C to 150°C, matching the primary part's upper limit.

Standard Recovery Alternatives:

1N4002-E3/73, 1N4002G, and 1N4002GP-E3/54 are standard recovery diodes meeting the 100 V and 1 A electrical requirements. These parts are suitable for applications where switching speed is not a critical design parameter. All three are Active in product status and RoHS3 compliant. The 1N4002GP-E3/54 offers the widest operating temperature range (-65°C to 175°C) and is recommended when thermal performance is a consideration.

1N4002-TP and 1N4002RLG are marked as Not For New Designs and should not be selected for new circuit implementations.

Voltage-Reduced Alternative:

RGP10A is rated for 50 V maximum reverse voltage, which is below the 100 V specification of PR1002G-T. This part is suitable only for applications where the actual reverse voltage stress does not exceed 50 V, even though the circuit may have been designed for 100 V operation.

Compliance and Availability:

All recommended substitutes maintain RoHS3 compliance and REACH Unaffected status. Inventory availability ranges from 1,491 to 43,003 units across the substitute options, providing multiple sourcing alternatives.

Frequently Asked Questions (FAQ)

Q: Can RGP10B-E3/54 be used as a direct replacement for PR1002G-T?

A: Yes. RGP10B-E3/54 is electrically and mechanically equivalent to PR1002G-T. Both parts are rated for 100 V, 1 A, feature 150 ns reverse recovery time, and are packaged in DO-204AL (DO-41) through-hole format. The primary difference is packaging format (Cut Tape vs. Tape & Reel) and the extended operating temperature range of RGP10B-E3/54 (-65°C to 175°C vs. -65°C to 150°C).

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

A: Fast recovery diodes (PR1002G-T, RGP10B, RGP10B-E3/54, RGP10BE-E3/54, 1N4934G) have reverse recovery times of 150–200 ns, enabling rapid turn-off and reduced switching losses. Standard recovery diodes (1N4002 series) have recovery times exceeding 500 ns or 2 µs, resulting in slower switching but lower forward voltage drop in some cases. Selection depends on circuit switching frequency and efficiency requirements.

Q: Is RGP10A a suitable substitute for PR1002G-T?

A: RGP10A is not a direct substitute. While it matches the 1 A current rating and fast recovery characteristics, it is rated for only 50 V maximum reverse voltage compared to PR1002G-T's 100 V rating. RGP10A is suitable only for applications where the actual reverse voltage stress does not exceed 50 V.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in three through-hole package formats: DO-41 (axial leads), DO-204AL (axial leads, equivalent to DO-41), and Axial (generic axial configuration). All three formats are mechanically compatible with through-hole PCB designs. Packaging format selection depends on PCB layout requirements and supplier availability.

Q: Are all substitute parts RoHS3 compliant?

A: Most recommended substitutes are RoHS3 compliant. RGP10B and RGP10A lack documented RoHS3 compliance status in the provided specifications. For applications requiring RoHS3 certification, select from RGP10B-E3/54, RGP10BE-E3/54, 1N4002-E3/73, 1N4002G, 1N4002GP-E3/54, 1N4002RLG, or 1N4934G.

Q: Why are 1N4002-TP and 1N4002RLG marked as Not For New Designs?

A: Parts designated as Not For New Designs are typically in end-of-life status or have been superseded by improved alternatives. These parts should not be selected for new circuit implementations. Use Active-status alternatives such as 1N4002-E3/73, 1N4002G, or 1N4002GP-E3/54 instead.

Q: What is the operating temperature range difference between PR1002G-T and its substitutes?

A: PR1002G-T operates from -65°C to 150°C. Several substitutes extend the upper temperature limit to 175°C (RGP10B, RGP10B-E3/54, RGP10BE-E3/54, 1N4002GP-E3/54, 1N4002RLG), providing additional thermal margin. Standard recovery alternatives (1N4002-E3/73, 1N4002G, 1N4002-TP) operate to 150°C, matching the primary part's range.

Q: Can forward voltage differences between substitutes affect circuit performance?

A: Yes. PR1002G-T specifies 1.3 V maximum forward voltage at 1 A. Standard recovery alternatives (1N4002 series) specify 1.1 V, while 1N4934G specifies 1.2 V. Lower forward voltage reduces power dissipation and heat generation. In precision rectifier applications or high-current designs, forward voltage differences should be evaluated against circuit requirements.

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