Equivalent & Substitute Parts for RS3KB-HF Diode, Rectifier

Part Overview

The RS3KB-HF, manufactured by Comchip Technology, is a surface-mount, general-purpose rectifier diode specified for 800 V, 3A operation in the DO-214AA (SMB) package. This part’s typical applications include AC-DC conversion and fast recovery rectification. The product is active, ROHS3 compliant, and available in tape & reel packaging for high-volume assembly. Identifying equivalent and substitute models within the Diodes, Rectifiers category ensures supply continuity and compatible form, fit, and function in designs using this device.

Substiute Parts

RS3KB-HF

Comchip TechnologyIn Stock: 3373RS3KB-HF Datasheet

Current PartRFQ

RS3KB-T R5G

Taiwan Semiconductor CorporationIn Stock: 3082RS3KB-T R5G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute and equivalent parts are grouped strictly according to the following key parametric criteria:

• Electrical parameters: Voltage - DC Reverse (Vr) (Max), Current - Average Rectified (Io), Voltage - Forward (Vf) (Max) @ If, Speed, Reverse Recovery Time (trr), Current - Reverse Leakage @ Vr, Capacitance @ Vr, F.
• Mechanical parameters: Package / Case, Supplier Device Package, Mounting Type.
• Compliance criteria: RoHS status, Moisture Sensitivity Level.
• Product status: Active only.

Only parts matching all listed values within allowable tolerances are considered valid substitutes in the Diodes, Rectifiers category for the RS3KB-HF model.

Parameter Comparison

Engineering Selection Recommendations

Substitute components for the RS3KB-HF should be selected only if the product status is active, RoHS compliance is assured, and the moisture sensitivity level is compatible with assembly requirements. Both RS3KB-HF and RS3KB-T R5G are active and ROHS3 compliant, with equivalent moisture sensitivity, package, and electrical rating parameters. No further compliance or certification differences are evident from the provided data.

Frequently Asked Questions (FAQ)

Q1: How do I determine if RS3KB-T R5G is an equivalent substitute for RS3KB-HF?
A1: Substitute determination is based on matching electrical parameters (Vr, Io, Vf, speed, trr, reverse leakage, capacitance), identical package type and mounting, active product status, and equivalent compliance ratings.

Q2: Are there any significant electrical differences between RS3KB-HF and RS3KB-T R5G?
A2: The only parametric variance is capacitance at test conditions: RS3KB-HF is rated at 40pF @ 4V, 1MHz, and RS3KB-T R5G at 50pF @ 4V, 1MHz. All other electrical parameters are identical based on the provided information.

Q3: Is the mounting and package type compatible across RS3KB-HF and its substitutes?
A3: Both components specify the DO-214AA, SMB surface-mount package, ensuring mechanical compatibility for PCB design and assembly.

Q4: Do substitutes have the same compliance and certifications as RS3KB-HF?
A4: Both RS3KB-HF and RS3KB-T R5G are ROHS3 compliant and designated as MSL 1 (Unlimited), with product status listed as active.

Q5: What are the primary criteria for selecting a substitute in the Diodes, Rectifiers category?
A5: Substitution is based solely on matched electrical ratings, mechanical package/form factor, product status, and compliance (RoHS, MSL) as provided in the key parameters.