RS3DB-HF Equivalent & Substitute Parts Reference

Part Overview

The RS3DB-HF (Comchip Technology) is a Diodes, Rectifiers category component with a general-purpose 200V, 3A fast recovery diode in a SMB/DO-214AA surface-mount package. The device is active, RoHS3 compliant, and features a fast reverse recovery time suitable for high-frequency and general-purpose applications. Identification of equivalent or parametric substitute models is required for ensuring supply chain continuity, design flexibility, and inventory management.

Substiute Parts

RS3DB-HF

Comchip TechnologyIn Stock: 974RS3DB-HF Datasheet

Current PartRFQ

RS3DB-T R5G

Taiwan Semiconductor CorporationIn Stock: 2448RS3DB-T R5G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part selection for the RS3DB-HF is determined by strict equivalence in the following key parameters: maximum DC reverse voltage (200 V), average rectified current (3A), maximum forward voltage at rated current (1.3 V @ 3A), fast recovery speed (<= 500ns), reverse recovery time (150 ns), reverse leakage current (5 µA @ 200 V), comparable or identical package (DO-214AA, SMB), mounting type (Surface Mount), comparable junction operating temperature range (-55°C ~ 150°C), and compliance status (ROHS3, MSL 1). No substitutions are made outside these explicit parameters.

Parameter Comparison

Engineering Selection Recommendations

Both RS3DB-HF and RS3DB-T R5G are active status products, ROHS3 compliant, and MSL 1 rated (unlimited). Selection may be made based on inventory availability and specific compliance documentation without consideration for additional technical criteria outside the provided parameters.

Frequently Asked Questions (FAQ)

Q1: What parameters are required for a valid substitute for the RS3DB-HF?
A: Substitution requires identical values for maximum reverse voltage, average rectified current, maximum forward voltage at rated current, recovery speed, reverse recovery time, reverse leakage current, package and mounting type, operating temperature range, and compliance status.

Q2: Is the package form a critical requirement in substitution?
A: Yes, only DO-214AA, SMB surface-mount packages are considered, ensuring mechanical and reflow compatibility.

Q3: Are all electrical parameters exactly the same between RS3DB-HF and RS3DB-T R5G?
A: All key parameters are matched except for capacitance, which is 40pF (RS3DB-HF) and 50pF (RS3DB-T R5G), within allowable range for this category.

Q4: How should part selection be made between RS3DB-HF and RS3DB-T R5G?
A: Selection is determined only by product status, RoHS compliance, MSL rating, and inventory, as all other explicit parameters for equivalence are maintained.

Q5: Are both parts compliant with environmental and safety regulations?
A: Both RS3DB-HF and RS3DB-T R5G are ROHS3 compliant and rated MSL 1 (unlimited).