S2JB-HF Equivalent & Substitute Parts

Part Overview

The S2JB-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 600V DC reverse voltage and 2A average rectified current in a surface mount SMB/DO-214AA package. This diode is designed for standard recovery applications and is currently in active product status with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure direct functional replacement in circuit applications.

Substiute Parts

S2JB-HF

Comchip TechnologyIn Stock: 1204S2JB-HF Datasheet

Current PartRFQ

S2J

Nexperia USA Inc.In Stock: 2447826S2J Datasheet

Parametric EquivalentRFQ

S2J_R1_00001

Panjit International Inc.In Stock: 2637S2J_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2JB-HF are qualified based on the following critical parameters that determine functional equivalence:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 600V
• Current - Average Rectified (Io): 2A
• Speed Classification: Standard Recovery >500ns, > 200mA (Io)
• Package / Case: DO-214AA, SMB (surface mount)
• Mounting Type: Surface Mount

Environmental & Compliance:

• Operating Temperature - Junction: -55°C minimum to 150°C maximum
• RoHS3 Compliance status

Parts meeting these criteria are classified as parametric equivalents and direct substitutes. Variations in forward voltage (Vf), reverse leakage current, and capacitance within acceptable engineering tolerances do not preclude substitution when all primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

S2J (Nexperia USA Inc.): The S2J is a parametric equivalent offering identical voltage and current ratings with standard recovery characteristics. This part features a lower reverse leakage current specification (1 µA versus 5 µA) and an extended lower operating temperature limit (-65°C versus -55°C). Forward voltage is marginally higher at 1.15V compared to 1.1V. Product status is active with availability of 2,447,738 units. RoHS3 compliance status is not specified in the provided data.

S2J_R1_00001 (Panjit International Inc.): The S2J_R1_00001 is a parametric equivalent with identical voltage, current, and forward voltage specifications to the S2JB-HF. This part is supplied in Tape & Reel packaging and maintains the same operating temperature range (-55°C to 150°C). Reverse leakage current is specified at 1 µA, lower than the main part. Product status is active with RoHS3 compliance confirmed. Inventory availability is 2,566 units.

Both substitute parts maintain full electrical and mechanical compatibility with the S2JB-HF within the specified parameter ranges and are suitable for direct replacement in applications requiring 600V, 2A general-purpose rectification.

Frequently Asked Questions (FAQ)

Q: Can the S2J (Nexperia) be used as a direct replacement for the S2JB-HF? A: Yes. Both parts share identical voltage (600V), current (2A), and package specifications (DO-214AA, SMB surface mount). The S2J operates across a wider temperature range (-65°C to 150°C) and exhibits lower reverse leakage current (1 µA). Forward voltage is 1.15V compared to 1.1V, a difference within acceptable engineering tolerance for general-purpose rectification applications.

Q: What is the difference between the S2J_R1_00001 and the S2JB-HF? A: The S2J_R1_00001 (Panjit) matches the S2JB-HF in all critical electrical parameters: 600V reverse voltage, 2A current rating, 1.1V forward voltage, and standard recovery speed. Both operate across -55°C to 150°C. The primary difference is manufacturer and packaging format (Tape & Reel for S2J_R1_00001). Reverse leakage current is lower at 1 µA.

Q: Are all three parts pin-compatible? A: Yes. All three parts use the DO-214AA (SMB) surface mount package with identical pinout and mechanical dimensions, enabling direct PCB footprint compatibility.

Q: Does the higher reverse leakage current of the S2JB-HF affect substitution? A: The S2JB-HF specifies 5 µA reverse leakage at 600V, while both substitute parts specify 1 µA. For general-purpose rectification applications, this difference is within acceptable operating margins. Circuit-specific requirements should be evaluated if leakage current is a critical design parameter.

Q: What is the significance of the forward voltage difference between S2J and S2JB-HF? A: The S2J forward voltage is 1.15V at 2A compared to 1.1V for the S2JB-HF, a 0.05V difference. This variation is typical among different manufacturers' standard recovery diodes and does not preclude substitution in most applications. Power dissipation impact is negligible in typical rectification circuits.

Q: Are there temperature range considerations when substituting? A: The S2J offers an extended lower temperature limit (-65°C versus -55°C), providing broader environmental coverage. The S2J_R1_00001 matches the S2JB-HF temperature range exactly (-55°C to 150°C). Selection should align with application temperature requirements.

Q: What packaging options are available for these substitutes? A: The S2JB-HF is supplied in Tape & Reel format. The S2J packaging format is not specified in the provided data. The S2J_R1_00001 is supplied in Tape & Reel packaging, matching the original part's packaging specification.