PR1502G-T Equivalent & Substitute Parts

Part Overview

The PR1502G-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and production continuity. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating package and mounting compatibility requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1.5 A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 1.5 A minimum
Current - Reverse Leakage @ Vr: 5 µA maximum @ 100 V
Mounting Type: Through Hole
Package / Case: DO-204AC (DO-15) or DO-204AL (DO-41) axial configurations

Compliance Requirements:

RoHS3 Compliant status
Active product status for production availability

Performance Considerations:

Forward voltage (Vf) and reverse recovery time (trr) variations are acceptable within the specified electrical envelope
Operating temperature range may extend beyond the original specification

Four substitute parts meet these criteria: RGP15B-E3/54, 1N5392-E3/54, FR152GP-AP, and GP15B-E3/54. These parts are grouped by package type and recovery speed characteristics.

Parameter Comparison

Parameter	PR1502G-T	RGP15B-E3/54	1N5392-E3/54	FR152GP-AP	GP15B-E3/54
Manufacturer	Diodes Incorporated	Vishay General Semiconductor	Vishay General Semiconductor	Micro Commercial Co	Vishay General Semiconductor
Product Status	Obsolete	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	1.5 A	1.5 A	1.5 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A	1.3 V @ 1.5 A	1.4 V @ 1.5 A	1.3 V @ 1.5 A	1.1 V @ 1.5 A
Speed Classification	Fast Recovery ≤ 500 ns	Fast Recovery ≤ 500 ns	Standard Recovery > 500 ns	Fast Recovery ≤ 500 ns	Standard Recovery > 500 ns
Reverse Recovery Time (trr)	150 ns	150 ns	2 µs	150 ns	3.5 µs
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AL, DO-41, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-65 to 150 °C	-65 to 175 °C	-50 to 150 °C	-55 to 150 °C	-65 to 175 °C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (DO-15 Package, Identical Pinout):

RGP15B-E3/54 and FR152GP-AP are direct mechanical and electrical substitutes for PR1502G-T. Both maintain the DO-15 axial package configuration, identical voltage and current ratings, and fast recovery characteristics (150 ns trr). RGP15B-E3/54 offers extended operating temperature range (-65 to 175 °C) and higher inventory availability (8631 units). FR152GP-AP provides equivalent performance with 781 units in stock. Both are active products with ROHS3 compliance.

Secondary Substitute (DO-15 Package, Lower Forward Voltage):

GP15B-E3/54 operates in the DO-15 package with identical voltage and current specifications. This part exhibits lower forward voltage (1.1 V @ 1.5 A) compared to the original specification (1.3 V @ 1.5 A), resulting in reduced power dissipation. Standard recovery characteristics (3.5 µs trr) differ from the original fast recovery specification. Extended operating temperature range (-65 to 175 °C) and high inventory (9002 units) support production continuity. ROHS3 compliance confirmed.

Alternative Substitute (DO-41 Package, Different Pinout):

1N5392-E3/54 provides electrical equivalence with different mechanical packaging (DO-41 instead of DO-15). This substitution requires PCB layout modification due to different lead spacing and package dimensions. Standard recovery characteristics (2 µs trr) and higher forward voltage (1.4 V @ 1.5 A) represent performance variations. Suitable only when package change is accommodated in design. ROHS3 compliance and active status confirmed.

Frequently Asked Questions (FAQ)

Q: Can RGP15B-E3/54 replace PR1502G-T without PCB modification?

A: Yes. RGP15B-E3/54 maintains identical DO-15 axial package configuration, voltage rating (100 V), current rating (1.5 A), and reverse leakage specification (5 µA @ 100 V). Direct substitution is mechanically and electrically compatible.

Q: What is the difference between fast recovery and standard recovery diodes in these substitutes?

A: PR1502G-T, RGP15B-E3/54, and FR152GP-AP are fast recovery diodes with reverse recovery time of 150 ns. GP15B-E3/54 and 1N5392-E3/54 are standard recovery diodes with trr values of 3.5 µs and 2 µs respectively. Fast recovery diodes exhibit lower switching losses and are preferred in high-frequency applications. Standard recovery diodes are suitable for lower-frequency rectification circuits.

Q: Why does 1N5392-E3/54 have a different package designation?

A: 1N5392-E3/54 uses DO-204AL (DO-41) package instead of DO-204AC (DO-15). Both are axial through-hole packages, but DO-41 has different lead spacing and body dimensions. This substitution requires PCB layout changes and is not a direct drop-in replacement.

Q: Is forward voltage variation significant between substitute options?

A: Forward voltage ranges from 1.1 V (GP15B-E3/54) to 1.4 V (1N5392-E3/54) at 1.5 A. The original PR1502G-T specifies 1.3 V. Variations of ±0.1 to 0.3 V are within acceptable engineering tolerance for general-purpose rectification. Applications sensitive to voltage drop should evaluate specific forward voltage performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute parts (RGP15B-E3/54, 1N5392-E3/54, FR152GP-AP, and GP15B-E3/54) carry ROHS3 Compliant certification, matching the original PR1502G-T specification.

Q: Which substitute offers the best inventory availability?

A: GP15B-E3/54 provides the highest inventory level at 9002 units in stock, followed by RGP15B-E3/54 at 8631 units and 1N5392-E3/54 at 8700 units. FR152GP-AP has lower availability at 781 units.

Q: Can I use these substitutes in high-temperature applications?

A: RGP15B-E3/54 and GP15B-E3/54 support extended operating temperature range to 175 °C, exceeding the original PR1502G-T specification of 150 °C. FR152GP-AP and 1N5392-E3/54 maintain the 150 °C maximum junction temperature. Application requirements determine suitability for elevated temperature operation.

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