PB64 Bridge Rectifier Single Phase 400V 6A Equivalent & Substitute Parts

Part Overview

The PB64 is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 400 V peak reverse voltage and 6 A average rectified current in a through-hole PB-6 package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts maintain the same current rating, package form factor, and core electrical characteristics while offering alternative voltage ratings and updated product status classifications.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	400 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 3 A
Current - Reverse Leakage @ Vr	10 µA @ 400 V
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-Square, PB-6
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the PB64 are selected based on strict electrical and mechanical compatibility criteria. All substitute parts maintain the following fixed parameters:

Current - Average Rectified (Io): 6 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 3 A
Current - Reverse Leakage: 10 µA (at respective voltage ratings)
Mounting Type: Through Hole
Package / Case: 4-Square, PB-6
Diode Type: Single Phase
Technology: Standard
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The primary variable parameter is Voltage - Peak Reverse (Max), which ranges from 50 V to 1 kV across the substitute series. Substitution is valid when the substitute part's voltage rating equals or exceeds the application requirement. Operating temperature ranges vary between the original part (-65°C ~ 150°C) and substitute parts (-55°C ~ 150°C), with substitutes offering a narrower lower temperature limit.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Product Status	Inventory (Pcs)
PB64	Diodes Incorporated	400 V	6 A	1.1 V @ 3 A	10 µA @ 400 V	-65°C ~ 150°C	Obsolete	1065
PB605-BP	Micro Commercial Co	50 V	6 A	1.1 V @ 3 A	10 µA @ 50 V	-55°C ~ 150°C	Not For New Designs	2008
PB61-BP	Micro Commercial Co	100 V	6 A	1.1 V @ 3 A	10 µA @ 100 V	-55°C ~ 150°C	Not For New Designs	2184
PB62-BP	Micro Commercial Co	200 V	6 A	1.1 V @ 3 A	10 µA @ 200 V	-55°C ~ 150°C	Not For New Designs	2942
PB64-BP	Micro Commercial Co	400 V	6 A	1.1 V @ 3 A	10 µA @ 400 V	-55°C ~ 150°C	Not For New Designs	855
PB66-BP	Micro Commercial Co	600 V	6 A	1.1 V @ 3 A	10 µA @ 600 V	-55°C ~ 150°C	Active	1912
PB68-BP	Micro Commercial Co	800 V	6 A	1.1 V @ 3 A	10 µA @ 800 V	-55°C ~ 150°C	Active	899
PB610-BP	Micro Commercial Co	1 kV	6 A	1.1 V @ 3 A	10 µA @ 1000 V	-55°C ~ 150°C	Active	2429

Engineering Selection Recommendations

For applications requiring a 400 V rated bridge rectifier in the PB-6 package, PB64-BP from Micro Commercial Co provides the direct electrical equivalent. This part maintains identical voltage and current specifications while offering ROHS3 compliance and unlimited moisture sensitivity rating. However, PB64-BP carries a "Not For New Designs" status classification.

For new design implementations, PB66-BP or PB68-BP are recommended as they maintain Active product status and provide higher voltage ratings (600 V and 800 V respectively) suitable for 400 V applications. Both parts are manufactured by Micro Commercial Co, share the same package and current specifications, and carry ROHS3 compliance certification.

PB610-BP offers the highest voltage rating at 1 kV and maintains Active status, providing maximum design margin for voltage transient conditions while maintaining all other electrical and mechanical compatibility parameters.

All substitute parts are ROHS3 compliant and carry unlimited moisture sensitivity classification, matching the original PB64 specifications. Operating temperature range differences (-55°C lower limit versus -65°C for the original) must be evaluated against specific application requirements.

Frequently Asked Questions (FAQ)

Q: Can PB64-BP directly replace PB64? A: Yes. PB64-BP provides identical electrical specifications at 400 V and 6 A with the same PB-6 package form factor. Both parts are ROHS3 compliant with unlimited moisture sensitivity. The primary difference is product status classification; PB64-BP is marked "Not For New Designs."

Q: What is the difference between PB64 and PB64-BP? A: Both parts share identical electrical ratings (400 V, 6 A) and package specifications. The differences are manufacturer (Diodes Incorporated versus Micro Commercial Co) and product status (Obsolete versus Not For New Designs). Operating temperature ranges differ slightly: PB64 operates from -65°C to 150°C, while PB64-BP operates from -55°C to 150°C.

Q: Can I use PB66-BP or PB68-BP in place of PB64? A: Yes, for applications rated at 400 V or lower. PB66-BP (600 V) and PB68-BP (800 V) both maintain 6 A current rating and PB-6 package compatibility. Higher voltage ratings provide additional design margin. Both parts carry Active product status, making them suitable for new designs.

Q: What does "Not For New Designs" mean? A: This classification indicates the part is available for existing production and maintenance but should not be selected for new product development. Parts with Active status (PB66-BP, PB68-BP, PB610-BP) are preferred for new designs.

Q: Are all substitute parts RoHS compliant? A: Yes. All parts listed, including the original PB64 and all substitutes, are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: Does operating temperature range affect substitution? A: The original PB64 operates from -65°C to 150°C, while all substitute parts operate from -55°C to 150°C. Applications requiring operation below -55°C must retain the original PB64 or evaluate alternative solutions.

Q: What is the significance of voltage rating differences? A: Voltage rating indicates the maximum peak reverse voltage the rectifier can withstand. A substitute with equal or higher voltage rating is suitable for any application. PB64 at 400 V can be replaced by PB64-BP (400 V), PB66-BP (600 V), PB68-BP (800 V), or PB610-BP (1 kV).

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