PR1501G-T Equivalent & Substitute Parts

Part Overview

The PR1501G-T is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 50 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 ongoing production and maintenance applications. Substitute parts must maintain electrical performance across voltage, current, and thermal specifications while accommodating through-hole mounting requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1.5	V @ A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	—
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

Substitute parts for the PR1501G-T are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 50 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 @ 50 V
Speed Classification: Fast Recovery ≤ 500ns, > 200mA
Mounting Type: Through Hole
Package / Case: DO-204AC, DO-15, Axial
RoHS Status: ROHS3 Compliant

All identified substitute parts maintain these electrical specifications and package compatibility. Variations in operating temperature range and capacitance values do not affect functional substitution within the specified parameter set.

Parameter Comparison

Parameter	PR1501G-T (Diodes Inc.)	RGP15A-E3/54 (Vishay)	FR151GP-AP (MCC)	FR151GP-TP (MCC)
Manufacturer	Diodes Incorporated	Vishay General Semiconductor	Micro Commercial Co	Micro Commercial Co
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	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	1.3 V @ 1.5 A	1.3 V @ 1.5 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-65 to 150°C	-65 to 175°C	-55 to 150°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Type	Bulk	Tape & Reel (TR)	Bulk	Tape & Reel (TR)
Inventory Status	621 Pcs New Original	938 Pcs New Original	889 Pcs New Original	1090 Pcs New Original

Engineering Selection Recommendations

All three substitute parts—RGP15A-E3/54, FR151GP-AP, and FR151GP-TP—are functionally equivalent to the obsolete PR1501G-T based on matching electrical specifications and through-hole package compatibility.

RGP15A-E3/54 (Vishay General Semiconductor): This part is supplied in Tape & Reel packaging and features an extended operating temperature range (-65 to 175°C) compared to the original specification. REACH status is unaffected. This option is suitable for applications requiring higher temperature margin.

FR151GP-AP (Micro Commercial Co): This part is supplied in bulk packaging with standard operating temperature range (-55 to 150°C). REACH status is unaffected. This option is suitable for applications with standard temperature requirements and bulk component procurement.

FR151GP-TP (Micro Commercial Co): This part is supplied in Tape & Reel packaging with standard operating temperature range (-55 to 150°C). REACH status is unaffected. This option is suitable for automated assembly processes requiring tape-and-reel format.

Selection between these three alternatives depends on packaging format requirements (bulk versus tape-and-reel) and operating temperature margin needs. All parts maintain ROHS3 compliance and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can RGP15A-E3/54 be used as a direct replacement for PR1501G-T?

A: Yes. RGP15A-E3/54 matches all critical electrical parameters: 50 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage at 1.5 A, 150 ns reverse recovery time, and 5 µA reverse leakage current. Both use DO-15 through-hole axial packaging. The Vishay part offers extended temperature range (-65 to 175°C versus -65 to 150°C).

Q: What is the difference between FR151GP-AP and FR151GP-TP?

A: Both parts are manufactured by Micro Commercial Co and share identical electrical specifications. The primary difference is packaging format: FR151GP-AP is supplied in bulk, while FR151GP-TP is supplied in Tape & Reel (TR) format. Selection depends on assembly process requirements. Both operate across -55 to 150°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. PR1501G-T, RGP15A-E3/54, FR151GP-AP, and FR151GP-TP are all ROHS3 compliant.

Q: Do the substitute parts have the same reverse recovery time?

A: Yes. All substitute parts maintain 150 ns reverse recovery time, matching the original PR1501G-T specification.

Q: Can these diodes be used in high-temperature applications?

A: RGP15A-E3/54 supports operation to 175°C junction temperature, providing additional margin for high-temperature environments. FR151GP-AP and FR151GP-TP are rated to 150°C junction temperature. Application requirements determine which part is appropriate.

Q: Are there packaging considerations for PCB assembly?

A: Yes. RGP15A-E3/54 and FR151GP-TP are supplied in Tape & Reel format, suitable for automated pick-and-place assembly. FR151GP-AP is supplied in bulk format, suitable for manual assembly or tube-based automated processes. All three use identical DO-15 through-hole axial package geometry.

Q: What is the reverse leakage current specification across all parts?

A: All parts specify 5 µA maximum reverse leakage current at 50 V, ensuring consistent leakage performance in circuit applications.

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