KBPC3504T Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBPC3504T is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, designed for 400 V peak reverse voltage applications with 35 A average rectified current capacity. This component operates across the temperature range of -55°C to 150°C and features QC terminal mounting in a 4-Square KBPC package configuration. The part maintains Active product status and holds RoHS Compliance certification.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining the same mechanical interface and environmental operating conditions.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	400	V
Current - Average Rectified (Io)	35	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 17.5	V @ A
Current - Reverse Leakage @ Vr	10 @ 400	µA @ V
Operating Temperature Range	-55 to 150	°C
Mounting Type	QC Terminal	—
Package / Case	4-Square, KBPC-T	—
Diode Type	Single Phase	—
Technology	Standard	—

Substitute Part Grouping Explanation

Substitution eligibility for the KBPC3504T is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

Voltage - Peak Reverse (Max): 400 V
Diode Type: Single Phase
Technology: Standard
Mounting Type: QC Terminal
Package / Case: 4-Square, KBPC configuration
Operating Temperature Range: -55°C to 150°C minimum

Current Rating Consideration: The KBPC3504T operates at 35 A average rectified current. Substitute parts are grouped based on current capacity. Parts with lower current ratings (10 A, 25 A) are listed as available alternatives but operate within reduced current specifications. Parts with equal or higher current capacity within the same voltage and package class are direct substitutes.

Electrical Performance Parameters: Forward voltage drop (Vf) and reverse leakage current must remain within the specified tolerances to ensure equivalent thermal and switching characteristics in the application circuit.

Parameter Comparison

Parameter	KBPC3504T (GeneSiC)	KBPC1004-G (Comchip)	KBPC2504-G (Comchip)
Voltage - Peak Reverse (Max)	400 V	400 V	400 V
Current - Average Rectified (Io)	35 A	10 A	25 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 17.5 A	1.1 V @ 5 A	1.1 V @ 12.5 A
Current - Reverse Leakage @ Vr	10 µA @ 400 V	10 µA @ 400 V	10 µA @ 400 V
Operating Temperature Range	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Mounting Type	QC Terminal	QC Terminal	QC Terminal
Package / Case	4-Square, KBPC-T	4-Square, KBPC	4-Square, KBPC
Diode Type	Single Phase	Single Phase	Single Phase
Technology	Standard	Standard	Standard
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

KBPC3504T (Primary Part): The KBPC3504T maintains Active product status with RoHS Compliance certification. This part is suitable for applications requiring the full 35 A current capacity at 400 V peak reverse voltage. Inventory availability is confirmed at 693 pieces.

KBPC2504-G (Comchip Technology): This substitute operates at 25 A average rectified current, representing a 71% capacity relative to the KBPC3504T. All voltage, temperature, and package parameters remain equivalent. The part holds ROHS3 Compliance and REACH Unaffected status. Inventory availability is 1760 pieces. Selection of this part is appropriate for applications where the 25 A current specification satisfies circuit requirements.

KBPC1004-G (Comchip Technology): This substitute operates at 10 A average rectified current, representing a 29% capacity relative to the KBPC3504T. All voltage, temperature, and package parameters remain equivalent. The part holds ROHS3 Compliance and REACH Unaffected status. Inventory availability is 753 pieces. Selection of this part is appropriate only for applications where the 10 A current specification satisfies circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can KBPC1004-G or KBPC2504-G be used as direct replacements for KBPC3504T in all applications?

A: No. The substitute parts have lower average rectified current ratings (10 A and 25 A respectively, compared to 35 A for the KBPC3504T). They are suitable only for applications designed to operate within their respective current specifications. The 400 V voltage rating, temperature range, and package configuration are identical.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by: (1) Voltage - Peak Reverse matching at 400 V, (2) Diode Type as Single Phase, (3) Technology as Standard, (4) Mounting Type as QC Terminal, (5) Package configuration as 4-Square KBPC, and (6) Operating Temperature Range of -55°C to 150°C. Current rating must be evaluated based on application circuit requirements.

Q: Are there differences in forward voltage drop between the main part and substitutes?

A: The forward voltage specification is 1.1 V maximum for all three parts. However, the test current differs: KBPC3504T is tested at 17.5 A, KBPC2504-G at 12.5 A, and KBPC1004-G at 5 A. Forward voltage characteristics scale with current density.

Q: Do all parts share the same RoHS compliance status?

A: The KBPC3504T is RoHS Compliant. Both substitute parts (KBPC1004-G and KBPC2504-G) are ROHS3 Compliant, which represents a more recent compliance standard. Both statuses satisfy RoHS requirements.

Q: Is the package physically identical across all three parts?

A: The KBPC3504T uses a 4-Square KBPC-T package, while KBPC1004-G and KBPC2504-G use a 4-Square KBPC package. Both configurations use QC Terminal mounting. Physical compatibility should be verified for the specific application PCB layout.

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

A: All three parts specify 10 µA maximum reverse leakage current at 400 V reverse voltage, indicating equivalent leakage performance.

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