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SD101B-TAP Equivalent & Substitute Parts Reference
Part Overview
SD101B-TAP, manufactured by Vishay General Semiconductor - Diodes Division, is a Schottky diode intended for general rectification in low-power electronic circuits. It features a maximum reverse voltage of 50V, forward current rating of 30mA, and is provided in a through-hole DO-204AH (DO-35) axial package. The need to identify equivalent or substitute models arises due to supply chain management, multi-sourcing for manufacturing flexibility, or inventory optimization. Substitutes included below are based strictly on provided electrical, mechanical, and compliance parameters.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Technology | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 50 V |
| Current - Average Rectified (Io) | 30 mA |
| Voltage - Forward (Vf) (Max) @ If | 950 mV @ 15 mA |
| Current - Reverse Leakage @ Vr | 200 nA @ 40 V |
| Capacitance @ Vr, F | 2.1 pF @ 0V, 1MHz |
| Mounting Type | Through Hole |
| Package / Case | DO-204AH (DO-35) |
| Operating Temperature - Junction | 125°C (Max) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution is determined strictly by matching or exceeding electrical, mechanical, and compliance parameters. Substitute Schottky diodes must have compatible or superior maximum reverse voltage, average rectified current, forward voltage, reverse leakage, and junction temperature ratings. Package type, mounting method, and compliance designations (RoHS, REACH, MSL) must match for mechanical and environmental equivalency.
Key parameters for grouping:
- Technology (Schottky)
- Reverse voltage rating (Vr)
- Average rectified current (Io)
- Forward voltage (Vf) at corresponding test current
- Reverse leakage current (Ir) at specified reverse voltage
- Capacitance
- Package / Case (DO-204AH / DO-35, Axial, Through Hole)
- Operating temperature range
- Compliance status (RoHS, REACH, MSL)
Parameter Comparison
| Part Number | Manufacturer | Technology | Vr (Max) | Io (Avg) | Vf (Max) @ If | Ir @ Vr | Capacitance | Mounting Type | Package / Case | Operating Temp - Junction | RoHS Status | MSL | REACH Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SD101B-TAP | Vishay | Schottky | 50 V | 30 mA | 950 mV @ 15 mA | 200 nA @ 40 V | 2.1 pF @ 0V, 1MHz | Through Hole | DO-204AH (DO-35) | 125°C (Max) | ROHS3 | 1 | REACH Unaffected |
| 1N6263 | STMicroelectronics | Schottky | 60 V | 15 mA | 1 V @ 15 mA | 200 nA @ 50 V | 2.2 pF @ 0V, 1MHz | Through Hole | DO-204AH (DO-35) | -65°C ~ 200°C | ROHS3 | 1 | REACH Unaffected |
| BAT42 | STMicroelectronics | Schottky | 30 V | 200 mA | 1 V @ 200 mA | 500 nA @ 25 V | 7 pF @ 1V, 1MHz | Through Hole | DO-204AH (DO-35) | -65°C ~ 125°C | ROHS3 | 1 | REACH Unaffected |
| BAT43 | STMicroelectronics | Schottky | 30 V | 200 mA | 1 V @ 200 mA | 500 nA @ 25 V | 7 pF @ 1V, 1MHz | Through Hole | DO-204AH (DO-35) | -65°C ~ 125°C | ROHS3 | 1 | REACH Unaffected |
Engineering Selection Recommendations
SD101B-TAP is classified as "Active" with full RoHS3 and REACH compliance and an MSL of 1 (Unlimited). Substitute parts 1N6263, BAT42, and BAT43 also have "Active" status, are RoHS3 compliant, REACH unaffected, and have MSL 1 rating. Selection among these parts can be based on compliance, product status, and mechanical compatibility when these are the controlling parameters.
Frequently Asked Questions (FAQ)
Q1: What determines if a Schottky diode is an acceptable substitute in this category?
A1: Acceptable substitutions require matching diode technology, equivalent or higher voltage and current ratings, compatible forward voltage and reverse leakage specifications, the same package (DO-204AH/DO-35), and matching compliance certifications (RoHS, REACH, MSL).
Q2: Are all listed substitutes in the same package type and mounting method?
A2: Yes. All listed substitutes are through-hole diodes in DO-204AH (DO-35) axial packages.
Q3: Is there a difference in compliance or environmental status among these parts?
A3: All parts are ROHS3 compliant, REACH unaffected, and have an MSL of 1 (unlimited storage life).
Q4: What are important considerations when selecting substitutes for Schottky diodes in this category?
A4: Key considerations are the electrical ratings (Vr, Io, Vf, Ir), package type, mounting method, operating temperature, and compliance status.
Q5: Does the operating temperature range differ between these parts?
A5: Yes. SD101B-TAP is rated for 125°C maximum junction temperature, while 1N6263 is rated for -65°C to 200°C, and BAT42/BAT43 are rated for -65°C to 125°C. Only the specified range should be considered for selection.
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