B8S-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The B8S-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 800 V peak reverse voltage and 800 mA average rectified current. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued system support and new designs. The B8S-G operates across a temperature range of -55°C to 150°C and is packaged in TO-269AA, 4-BESOP surface mount configuration. Finding suitable substitutes ensures design continuity and supply chain reliability.

Substiute Parts

B8S-G

Comchip TechnologyIn Stock: 1184B8S-G Datasheet

Current PartRFQ

B8S-HF

Comchip TechnologyIn Stock: 1132B8S-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B8S-G is based on electrical and mechanical parameter equivalence. The primary substitute, B8S-HF, maintains identical electrical specifications across all critical parameters: 800 V peak reverse voltage, 800 mA average rectified current, 1.1 V forward voltage drop at 800 mA, and 5 µA reverse leakage current at 800 V. Both parts operate within the same temperature range (-55°C to 150°C) and share identical package configuration (TO-269AA, 4-BESOP). The key differentiator is product status and packaging format: B8S-G is obsolete with standard packaging, while B8S-HF is active with Tape & Reel (TR) packaging. Both parts are ROHS3 compliant, carry MSL Level 1, and share the same base product number (B8S), confirming functional interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The B8S-HF is the direct equivalent for B8S-G applications. Both parts are manufactured by Comchip Technology and share identical electrical and mechanical specifications. The B8S-HF is preferred for new designs and ongoing production due to its active product status, ensuring long-term availability and supply chain stability. Both parts meet ROHS3 compliance and REACH requirements, making them suitable for regulated applications. The packaging difference (standard versus Tape & Reel) does not affect electrical performance and is a procurement consideration only. Selection between these parts should be based on supply availability and packaging requirements for your manufacturing process.

Frequently Asked Questions (FAQ)

Q: Can B8S-HF directly replace B8S-G in existing designs? A: Yes. Both parts are electrically and mechanically identical, with identical voltage ratings (800 V), current ratings (800 mA), forward voltage characteristics (1.1 V @ 800 mA), and operating temperature ranges (-55°C to 150°C). The TO-269AA, 4-BESOP package is identical for both parts.

Q: What is the difference between B8S-G and B8S-HF? A: The primary difference is product status and packaging format. B8S-G is obsolete with standard packaging, while B8S-HF is active with Tape & Reel (TR) packaging. All electrical parameters and compliance certifications are identical.

Q: Are there any compliance or certification differences? A: No. Both B8S-G and B8S-HF are ROHS3 compliant, carry MSL Level 1 (Unlimited), and are REACH unaffected. They share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Does packaging format affect electrical performance? A: No. Tape & Reel (TR) packaging used for B8S-HF is a delivery and handling format only. It does not alter electrical characteristics, thermal performance, or reliability compared to standard packaging.

Q: What are the critical parameters for substitution? A: Substitution is valid when the following parameters match: peak reverse voltage (800 V), average rectified current (800 mA), forward voltage drop (1.1 V @ 800 mA), reverse leakage current (5 µA @ 800 V), operating temperature range (-55°C to 150°C), and package type (TO-269AA, 4-BESOP).