PB32-BP Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The PB32-BP is a single-phase bridge rectifier manufactured by Micro Commercial Co, rated for 200 V peak reverse voltage and 3 A average rectified current. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing system maintenance, repair, and redesign applications. Bridge rectifiers in this specification range are used in AC-to-DC conversion circuits requiring moderate voltage and current ratings with through-hole mounting.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1.5 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole
Package / Case	4-Square, PB-3

Substitute Part Grouping Explanation

Substitution of the PB32-BP is determined by matching the following critical electrical and mechanical parameters:

Voltage Rating: Peak reverse voltage must be 200 V or greater
Current Rating: Average rectified current must be 3 A or greater
Diode Configuration: Single-phase bridge rectifier topology
Technology: Standard rectifier technology
Mounting: Through-hole configuration
Package Compatibility: Physical form factor must accommodate PB-3 or equivalent 4-square package footprint

The BR32 manufactured by GeneSiC Semiconductor meets all substitution criteria. Both parts share identical voltage and current ratings, operate across compatible temperature ranges, and utilize the same through-hole mounting and package classification.

Parameter Comparison

Parameter	PB32-BP (Micro Commercial Co)	BR32 (GeneSiC Semiconductor)
Diode Type	Single Phase	Single Phase
Technology	Standard	Standard
Voltage - Peak Reverse (Max)	200 V	200 V
Current - Average Rectified (Io)	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1.5 A	1 V @ 1.5 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V
Operating Temperature Range	-55°C ~ 125°C	-65°C ~ 125°C (TJ)
Mounting Type	Through Hole	Through Hole
Package / Case	4-Square, PB-3	4-Square, BR-3
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

The BR32 is a direct functional equivalent to the PB32-BP for applications requiring a 200 V, 3 A single-phase bridge rectifier. Key selection factors:

Product Status: The BR32 is active and in production, whereas the PB32-BP is obsolete. For new designs or long-term supply requirements, the BR32 is the appropriate selection.
Compliance: Both parts are RoHS compliant. The BR32 carries RoHS Compliant certification, while the PB32-BP is ROHS3 Compliant. Both meet regulatory requirements for their respective manufacturing periods.
Electrical Performance: The BR32 exhibits lower forward voltage drop (1 V vs. 1.2 V @ 1.5 A), resulting in reduced power dissipation. Reverse leakage current is identical at 10 µA @ 200 V.
Temperature Range: The BR32 supports a wider operating temperature range (-65°C to 125°C) compared to the PB32-BP (-55°C to 125°C), providing additional margin for extreme environment applications.
Package Compatibility: Both use 4-square through-hole packages (PB-3 and BR-3 respectively). Physical footprint compatibility must be verified for existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the BR32 be used as a direct replacement for the PB32-BP in existing circuits?

A: Yes, the BR32 meets all electrical specifications required by the PB32-BP. Both are rated for 200 V peak reverse voltage and 3 A average rectified current. Physical package compatibility (PB-3 vs. BR-3) must be confirmed for PCB mounting.

Q: What is the difference in forward voltage drop between these parts?

A: The BR32 has a maximum forward voltage of 1 V @ 1.5 A, compared to 1.2 V @ 1.5 A for the PB32-BP. This 0.2 V difference reduces power dissipation in the BR32, resulting in lower heat generation during operation.

Q: Are both parts RoHS compliant?

A: Yes. The PB32-BP is ROHS3 Compliant, and the BR32 is RoHS Compliant. Both meet environmental and regulatory requirements for their respective manufacturing standards.

Q: What is the temperature operating range for each part?

A: The PB32-BP operates from -55°C to 125°C. The BR32 operates from -65°C to 125°C (TJ), providing a 10°C lower minimum temperature rating.

Q: Are the package dimensions identical between PB-3 and BR-3?

A: Both use 4-square through-hole packages. Physical dimensions must be verified against manufacturer datasheets to confirm PCB footprint compatibility for existing layouts.

Q: Why is the PB32-BP listed as obsolete?

A: The PB32-BP is no longer in active production. The BR32 is the recommended active equivalent for new designs and ongoing supply requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message