KBJ406G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBJ406G is a single-phase bridge rectifier diode designed for standard rectification applications. It features a 600 V peak reverse voltage rating and 4 A average rectified current capacity, housed in a 4-SIP through-hole package. The component is classified as Active product status and is RoHS compliant. Substitute parts are identified when electrical and mechanical parameters align within the allowed specifications for this bridge rectifier category, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

KBJ406G

GeneSiC SemiconductorIn Stock: 10414KBJ406G Datasheet

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KBJ406G

Diodes IncorporatedIn Stock: 10480KBJ406G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBJ406G is determined by strict alignment of the following critical parameters:

Electrical Parameters (Must Match or Exceed):

• Voltage - Peak Reverse (Max): 600 V minimum
• Current - Average Rectified (Io): 4 A minimum
• Diode Type: Single Phase
• Technology: Standard

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: 4-SIP, KBJ

Compliance Parameters:

• RoHS Status: RoHS Compliant or equivalent
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain compatibility across all listed parameters. Variations in forward voltage (Vf), reverse leakage current, or operating temperature range do not disqualify substitution when primary electrical and mechanical specifications are met.

Parameter Comparison

Engineering Selection Recommendations

KBJ406G (Diodes Incorporated) qualifies as a direct substitute for KBJ406G (GeneSiC Semiconductor) based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical peak reverse voltage (600 V) and average rectified current (4 A) specifications. The Diodes Incorporated variant exhibits lower forward voltage (1 V @ 2 A versus 1.1 V @ 4 A), which represents improved efficiency characteristics and is acceptable for substitution.

Mechanical Compatibility: Both parts use identical through-hole mounting and 4-SIP KBJ package configuration, ensuring direct PCB footprint compatibility without layout modifications.

Compliance Status: The Diodes Incorporated part carries ROHS3 Compliant certification, which exceeds the RoHS Compliant status of the GeneSiC part. Both parts maintain Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions.

Temperature Range: The Diodes Incorporated variant extends the lower operating temperature limit to -65°C (versus -55°C), providing broader environmental operating capability without compromising the upper limit of 150°C.

Product Status: Both parts are classified as Active, confirming ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Can KBJ406G from Diodes Incorporated replace KBJ406G from GeneSiC Semiconductor in existing designs?

A: Yes. Both parts share identical electrical ratings (600 V peak reverse, 4 A average rectified current), diode type (single phase), technology (standard), and mechanical specifications (through-hole, 4-SIP KBJ package). No circuit modifications are required.

Q: What is the significance of the different forward voltage specifications?

A: The Diodes Incorporated part specifies 1 V @ 2 A, while GeneSiC specifies 1.1 V @ 4 A. These measurements are taken at different current levels and represent normal variation in device characterization. The lower forward voltage of the Diodes part indicates slightly improved efficiency and is compatible with existing circuit designs.

Q: Are there any temperature-related limitations when substituting?

A: No. The Diodes Incorporated variant extends the minimum operating temperature to -65°C compared to -55°C for the GeneSiC part. This provides equal or superior performance across the full operating range. Both parts maintain the same maximum junction temperature of 150°C.

Q: Do packaging and mounting differences affect substitution?

A: No. Both parts use identical 4-SIP KBJ through-hole packages. PCB footprints, lead spacing, and mounting procedures are identical. No layout or assembly changes are necessary.

Q: What compliance certifications apply to both parts?

A: Both parts are RoHS compliant (GeneSiC: RoHS Compliant; Diodes Inc.: ROHS3 Compliant). Both maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements. The Diodes Incorporated part includes REACH Unaffected status.

Q: Are there any reverse leakage current differences?

A: No. Both parts specify identical reverse leakage current of 5 µA @ 600 V, confirming equivalent leakage characteristics.