PR1505S-B Equivalent & Substitute Parts

Part Overview

The PR1505S-B is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 600 V DC reverse voltage and 1.5 A average rectified current in a through-hole DO-41 axial package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The PR1505S-B features fast recovery characteristics with a reverse recovery time of 250 ns, suitable for standard rectification applications requiring moderate current handling at 600 V operation.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1.5 A	V
Reverse Recovery Time (trr)	250	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Through Hole	-
Package / Case	DO-204AL, DO-41, Axial	-
Operating Temperature - Junction	-65 to 150	°C
Product Status	Obsolete	-

Substitute Part Grouping Explanation

Substitution of the PR1505S-B is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a minimum DC reverse voltage rating of 600 V to ensure equivalent electrical performance in the application circuit.

Current Rating: The PR1505S-B is rated for 1.5 A average rectified current. Substitute parts with equal or higher current ratings (1 A minimum, 2 A maximum) are acceptable, as they provide equivalent or enhanced current handling capability without exceeding typical circuit design margins.

Package and Mounting: All substitute parts must use through-hole axial mounting in DO-41 or DO-204AL package configurations to ensure mechanical and electrical compatibility with existing PCB layouts and component footprints.

Reverse Recovery Characteristics: The PR1505S-B operates with fast recovery characteristics (250 ns trr). Substitute parts with fast recovery (≤500 ns) or standard recovery (>500 ns) are acceptable, as recovery speed does not restrict substitution in general-purpose rectification applications.

Reverse Leakage Current: All substitute parts maintain 5 µA reverse leakage at 600 V, meeting the leakage specification of the original device.

Temperature Range: Operating temperature range of -65°C to 150°C for the PR1505S-B allows substitution with parts rated to -65°C to 175°C, providing equivalent or extended thermal performance.

Compliance: All substitute parts are RoHS3 compliant and carry EAR99 ECCN classification, matching the regulatory status of the original device.

Parameter Comparison

Parameter	PR1505S-B	1N4005GPE-E3/53	MUR260RLG	RGP10JE-E3/53	RGP10JE-E3/73	SBYV26C-E3/73
Manufacturer	Diodes Inc.	Vishay	onsemi	Vishay	Vishay	Vishay
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	1.5 A	1 A	2 A	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1.5 A	1.1 V @ 1 A	1.35 V @ 2 A	1.3 V @ 1 A	1.3 V @ 1 A	2.5 V @ 1 A
Reverse Recovery Time (trr)	250 ns	2 µs	75 ns	150 ns	250 ns	30 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	5 µA @ 600 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65 to 150°C	-65 to 175°C	-65 to 175°C	-65 to 175°C	-65 to 175°C	-65 to 175°C
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

1N4005GPE-E3/53 (Vishay SUPERECTIFIER®)

This substitute is an active product with extended temperature range (-65°C to 175°C) and RoHS3 compliance. The 1N4005GPE-E3/53 is rated for 1 A average rectified current, which is lower than the PR1505S-B 1.5 A rating. This part is suitable for applications where the circuit current requirement does not exceed 1 A. Standard recovery characteristics (2 µs trr) differ from the PR1505S-B fast recovery profile but remain acceptable for general-purpose rectification. High inventory availability (9833 pcs) supports procurement continuity.

MUR260RLG (onsemi SWITCHMODE™)

This substitute is an active product with fast recovery characteristics (75 ns trr) and extended temperature range (-65°C to 175°C). The MUR260RLG is rated for 2 A average rectified current, exceeding the PR1505S-B 1.5 A specification. This part provides enhanced current handling capability and superior recovery performance. RoHS3 compliance and high inventory availability (80300 pcs) support long-term design support. The MUR260RLG is suitable for applications requiring higher current capacity or improved switching performance.

RGP10JE-E3/53 (Vishay SUPERECTIFIER®)

This substitute is an active product with fast recovery characteristics (150 ns trr) and extended temperature range (-65°C to 175°C). The RGP10JE-E3/53 is rated for 1 A average rectified current. RoHS3 compliance and moderate inventory availability (1021 pcs) support design transitions. This part is suitable for applications where the circuit current requirement does not exceed 1 A and fast recovery performance is beneficial.

RGP10JE-E3/73 (Vishay SUPERECTIFIER®)

This substitute is an active product with fast recovery characteristics (250 ns trr) matching the PR1505S-B recovery profile and extended temperature range (-65°C to 175°C). The RGP10JE-E3/73 is rated for 1 A average rectified current. RoHS3 compliance and moderate inventory availability (894 pcs) support design transitions. This part provides the closest electrical performance match to the PR1505S-B for applications where circuit current does not exceed 1 A.

SBYV26C-E3/73 (Vishay)

This substitute is an active product with ultra-fast recovery characteristics (30 ns trr) and extended temperature range (-65°C to 175°C). The SBYV26C-E3/73 is rated for 1 A average rectified current. RoHS3 compliance and high inventory availability (8600 pcs) support procurement continuity. Forward voltage is elevated at 2.5 V @ 1 A compared to the PR1505S-B 1.2 V @ 1.5 A, resulting in higher power dissipation. This part is suitable for applications requiring ultra-fast recovery performance and where the circuit current does not exceed 1 A.

Frequently Asked Questions (FAQ)

Q: Can the PR1505S-B be replaced with a 1 A rated diode when the original circuit uses 1.5 A?

A: No. Substitution with a 1 A rated diode (1N4005GPE-E3/53, RGP10JE-E3/53, RGP10JE-E3/73, or SBYV26C-E3/73) is only acceptable if the actual circuit current requirement does not exceed 1 A. If the circuit requires 1.5 A operation, the MUR260RLG (2 A rating) is the appropriate substitute.

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

A: The PR1505S-B features fast recovery (250 ns trr). Substitute parts with fast recovery (MUR260RLG at 75 ns, RGP10JE-E3/53 at 150 ns, RGP10JE-E3/73 at 250 ns, SBYV26C-E3/73 at 30 ns) or standard recovery (1N4005GPE-E3/53 at 2 µs) are all acceptable. Recovery speed does not restrict substitution in general-purpose rectification applications. Faster recovery reduces switching losses in high-frequency circuits but is not required for standard rectification.

Q: Are all substitute parts compatible with the original DO-41 axial package footprint?

A: Yes. All substitute parts use through-hole axial mounting in DO-41 or DO-204AL package configurations, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the PR1505S-B.

Q: What is the impact of forward voltage differences among substitute parts?

A: Forward voltage affects power dissipation and heat generation. The PR1505S-B operates at 1.2 V @ 1.5 A. Substitute parts with lower forward voltage (1N4005GPE-E3/53 at 1.1 V @ 1 A, RGP10JE-E3/53 at 1.3 V @ 1 A, RGP10JE-E3/73 at 1.3 V @ 1 A) generate less heat. The SBYV26C-E3/73 operates at 2.5 V @ 1 A, resulting in significantly higher power dissipation. Forward voltage selection depends on thermal design requirements and circuit current levels.

Q: Why is the PR1505S-B classified as obsolete?

A: The PR1505S-B is marked obsolete by the manufacturer, indicating it is no longer in active production. Substitute parts listed are all active products from established manufacturers, ensuring long-term availability and design support.

Q: Do all substitute parts meet the same compliance standards as the PR1505S-B?

A: Yes. All substitute parts are RoHS3 compliant and carry EAR99 ECCN classification, matching the regulatory status of the original PR1505S-B device.

Q: Which substitute part provides the closest electrical performance match to the PR1505S-B?

A: The RGP10JE-E3/73 provides the closest match with identical 250 ns reverse recovery time and matching 600 V voltage rating. However, it is rated for 1 A instead of 1.5 A. For applications requiring 1.5 A or higher current capacity with fast recovery characteristics, the MUR260RLG (2 A, 75 ns trr) is the appropriate selection.

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