Equivalent & Substitute Parts for S3JB-HF

Part Overview

The S3JB-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 600 V DC reverse voltage and 3 A average rectified current in a surface mount SMB/DO-214AA package. This component is classified as Active and complies with ROHS3 standards. Substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure functional equivalence in circuit applications where the original part may be unavailable or require alternative sourcing.

Substiute Parts

S3JB-HF

Comchip TechnologyIn Stock: 1164S3JB-HF Datasheet

Current PartRFQ

S3JA_R1_00001

Panjit International Inc.In Stock: 1571S3JA_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S3JB-HF are qualified based on the following electrical and mechanical parameters:

• Voltage Rating: DC reverse voltage of 600 V (maximum)
• Current Rating: Average rectified current of 3 A
• Forward Voltage: Maximum 1.1 V at 3 A forward current
• Recovery Speed: Standard recovery characteristic with >500 ns recovery time at >200 mA
• Package Type: Surface mount SMB/DO-214AA form factor
• Operating Temperature Range: -55°C to 150°C junction temperature
• Compliance: ROHS3 compliant, MSL Level 1

The S3JA_R1_00001 manufactured by Panjit International Inc. meets all specified electrical parameters and mechanical requirements, qualifying it as a parametric equivalent for direct substitution in applications requiring the S3JB-HF.

Parameter Comparison

Engineering Selection Recommendations

The S3JA_R1_00001 is a qualified substitute for the S3JB-HF based on matching electrical specifications and mechanical compatibility. Both components are Active products with ROHS3 compliance and MSL Level 1 rating, ensuring equivalent performance in surface mount applications requiring 600 V, 3 A rectification.

The S3JA_R1_00001 demonstrates lower reverse leakage current (1 µA versus 5 µA at 600 V), which represents an operational advantage without introducing incompatibility. Both parts share identical forward voltage characteristics, recovery speed classification, capacitance, and thermal operating range.

Selection between these parts may be based on availability, lead time, or supplier preference, as electrical and mechanical parameters are fully equivalent.

Frequently Asked Questions (FAQ)

Q: Can the S3JA_R1_00001 be used as a direct replacement for the S3JB-HF?

A: Yes. The S3JA_R1_00001 meets all electrical specifications and mechanical requirements of the S3JB-HF, including voltage rating, current rating, forward voltage, recovery speed, and package type. Both components operate across the same temperature range and comply with ROHS3 standards.

Q: Are there differences in reverse leakage current between these parts?

A: The S3JA_R1_00001 exhibits lower reverse leakage current (1 µA at 600 V) compared to the S3JB-HF (5 µA at 600 V). This difference does not prevent substitution and represents improved performance characteristics in the substitute part.

Q: Do both parts use the same package?

A: Yes. Both the S3JB-HF and S3JA_R1_00001 use the SMB/DO-214AA surface mount package, ensuring mechanical and thermal compatibility on printed circuit boards.

Q: What is the operating temperature range for both parts?

A: Both components operate across a junction temperature range of -55°C to 150°C, providing equivalent thermal performance in circuit applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the S3JB-HF and S3JA_R1_00001 are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

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

A: Substitution is determined by matching voltage rating (600 V), current rating (3 A), forward voltage (1.1 V @ 3 A), recovery speed (Standard >500 ns), and package type (SMB/DO-214AA). Both parts meet these criteria.