KBP203 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The KBP203 is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, designed for applications requiring 200 V peak reverse voltage and 2 A average rectified current. This component operates across a temperature range of -50°C to 150°C and is housed in a 4-SIP KBP through-hole package. The part maintains Active product status and carries RoHS Compliance certification.

Substitute parts are identified when electrical specifications, mechanical compatibility, and regulatory compliance align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

KBP203

GeneSiC SemiconductorIn Stock: 1052KBP203 Datasheet

Current PartRFQ

KBP202G

SMC Diode SolutionsIn Stock: 1451KBP202G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KBP203 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Peak Reverse (Max): 200 V
• Current - Average Rectified (Io): 2 A
• Diode Type: Single Phase
• Mounting Type: Through Hole
• Package / Case: KBP form factor compatibility

Acceptable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Equal or lower values are acceptable
• Current - Reverse Leakage @ Vr: Lower values indicate improved performance
• Operating Temperature Range: Equal or wider ranges are acceptable
• RoHS and regulatory compliance status

The KBP202G from SMC Diode Solutions meets all critical matching parameters and demonstrates acceptable variations in leakage current and operating temperature range, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

KBP203 (GeneSiC Semiconductor):

• Primary selection for applications requiring GeneSiC manufacturer specifications
• Active product status with 952 units in stock
• RoHS Compliant certification
• Bulk packaging suitable for high-volume manufacturing

KBP202G (SMC Diode Solutions):

• Direct substitute with superior reverse leakage performance (5 µA vs. 10 µA)
• Extended lower operating temperature limit (-55°C vs. -50°C)
• ROHS3 Compliant with REACH Affected status
• Tube packaging; 1415 units in stock
• Suitable for applications where lower leakage current provides system advantages

Both components satisfy identical electrical load requirements and mounting compatibility. Selection between them depends on manufacturer preference, packaging requirements, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can KBP202G replace KBP203 in existing circuit designs?

A: Yes. The KBP202G meets all critical electrical parameters (200 V peak reverse voltage, 2 A average rectified current) and maintains through-hole KBP package compatibility. The substitute demonstrates equal forward voltage characteristics and superior reverse leakage performance.

Q: What is the difference between 4-SIP and 4-ESIP packaging?

A: Both designations refer to 4-pin Single In-line Package configurations within the KBP form factor. The ESIP variant (KBP202G) and SIP variant (KBP203) maintain compatible through-hole pin spacing and footprint geometry, enabling direct PCB substitution.

Q: Does the lower reverse leakage current of KBP202G (5 µA) affect circuit performance?

A: Lower reverse leakage current indicates reduced parasitic current flow at rated reverse voltage. This characteristic is beneficial in applications sensitive to standby power consumption or requiring minimal leakage paths. The KBP203 specification of 10 µA remains within acceptable industrial standards.

Q: Are there temperature range implications when substituting KBP202G for KBP203?

A: The KBP202G operating range (-55°C to 150°C) extends 5°C lower than the KBP203 (-50°C to 150°C). This provides additional margin for applications operating in cold environments. The upper temperature limit remains identical.

Q: What packaging considerations apply when switching between these parts?

A: Both components use through-hole mounting with KBP package form factors. Verify PCB footprint compatibility with your design documentation. Bulk packaging (KBP203) differs from tube packaging (KBP202G) in handling and assembly processes but does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. KBP203 carries RoHS Compliance certification. KBP202G carries ROHS3 Compliant certification, representing an updated compliance standard. Both satisfy RoHS requirements for lead-free manufacturing.