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TAJD476M020SNJ Equivalent & Substitute Parts
Part Overview
The TAJD476M020SNJ is a 47 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 20 V with ±20% tolerance. This surface mount component in 2917 (7343 Metric) package is designed for general purpose applications requiring stable capacitance performance across the operating temperature range of -55°C to 125°C. The part is Active status and ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection.
Equivalent and substitute parts are identified based on matching or upgraded electrical and mechanical specifications within the same package footprint and mounting technology. Substitutes are categorized by direct equivalence, tolerance upgrades, voltage upgrades, and manufacturer alternatives.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Capacitance | 47 µF |
| Voltage Rating | 20 V |
| Tolerance | ±20% |
| Type | Molded Tantalum |
| ESR (Equivalent Series Resistance) | 900 mOhm |
| Package / Case | 2917 (7343 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -55°C to 125°C |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution logic for the TAJD476M020SNJ is based on the following allowed parameters:
Direct Equivalence Criteria:
- Capacitance: 47 µF (exact match required)
- Voltage Rating: 20 V minimum (equal or higher acceptable)
- Package / Case: 2917 (7343 Metric) (exact match required)
- Mounting Type: Surface Mount (exact match required)
- Operating Temperature: -55°C to 125°C (exact match required)
- RoHS Status: ROHS3 Compliant (exact match required)
- MSL Rating: 1 (Unlimited) (exact match required)
Tolerance Upgrades: Parts with ±10% tolerance provide tighter capacitance control than the original ±20% specification and are electrically compatible.
Voltage Upgrades: Parts rated at 25 V or higher are compatible with 20 V applications and provide additional design margin.
ESR Variations: Lower ESR values indicate improved performance characteristics while maintaining electrical compatibility.
Manufacturer Alternatives: Non-KYOCERA AVX parts meeting identical electrical and mechanical specifications from qualified manufacturers (Vishay Sprague) are listed as cross-references.
Parameter Comparison
| Part Number | Manufacturer | Capacitance | Voltage | Tolerance | ESR | Package | Height (Max) | Series | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| TAJD476M020SNJ | KYOCERA AVX | 47 µF | 20 V | ±20% | 900 mOhm | 2917 | 0.122" (3.10 mm) | TAJ | Tape & Reel |
| TAJD476M020RNJ | KYOCERA AVX | 47 µF | 20 V | ±20% | 900 mOhm | 2917 | 0.122" (3.10 mm) | TAJ | Tape & Reel |
| TAJD476K020RNJ | KYOCERA AVX | 47 µF | 20 V | ±10% | 900 mOhm | 2917 | 0.122" (3.10 mm) | TAJ | Cut Tape & Digi-Reel |
| TAJD476K025RNJ | KYOCERA AVX | 47 µF | 25 V | ±10% | 900 mOhm | 2917 | 0.122" (3.10 mm) | TAJ | Cut Tape & Digi-Reel |
| TAJD476M025RNJ | KYOCERA AVX | 47 µF | 25 V | ±20% | 900 mOhm | 2917 | 0.122" (3.10 mm) | TAJ | Cut Tape & Digi-Reel |
| TAJY476K020RNJ | KYOCERA AVX | 47 µF | 20 V | ±10% | 900 mOhm | 2917 | 0.079" (2.00 mm) | TAJ | Tape & Reel |
| TAJY476K025RNJ | KYOCERA AVX | 47 µF | 25 V | ±10% | 900 mOhm | 2917 | 0.079" (2.00 mm) | TAJ | Cut Tape & Digi-Reel |
| TPSE476M020R0150 | KYOCERA AVX | 47 µF | 20 V | ±20% | 150 mOhm | 2917 | 0.169" (4.30 mm) | TPS | Tape & Reel |
| 293D476X0020D2TE3 | Vishay Sprague | 47 µF | 20 V | ±20% | 700 mOhm | 2917 | 0.122" (3.10 mm) | 293D | Tape & Reel |
| 293D476X0020E2TE3 | Vishay Sprague | 47 µF | 20 V | ±20% | 600 mOhm | 2917 | 0.170" (4.32 mm) | 293D | Tape & Reel |
| 593D476X0020D2TE3 | Vishay Sprague | 47 µF | 20 V | ±20% | 200 mOhm | 2917 | 0.122" (3.10 mm) | 593D | Tape & Reel |
Engineering Selection Recommendations
KYOCERA AVX Direct Equivalents: TAJD476M020RNJ is a direct functional equivalent with identical electrical specifications and packaging. Both parts are Active status, ROHS3 compliant, and MSL 1 rated.
KYOCERA AVX Tolerance Upgrades: TAJD476K020RNJ and TAJY476K020RNJ provide ±10% tolerance in place of ±20%, offering improved capacitance accuracy while maintaining 20 V rating and identical package footprint. TAJY series offers reduced height (0.079" vs 0.122") for space-constrained layouts.
KYOCERA AVX Voltage Upgrades: TAJD476K025RNJ and TAJD476M025RNJ are rated at 25 V with ±10% and ±20% tolerance respectively, providing additional voltage margin. TAJY476K025RNJ combines 25 V rating with reduced height profile.
KYOCERA AVX Performance Enhancement: TPSE476M020R0150 maintains 20 V rating and ±20% tolerance with significantly reduced ESR (150 mOhm vs 900 mOhm), suitable for applications requiring lower impedance performance. Height is increased to 0.169".
Vishay Sprague Cross-References: 293D476X0020D2TE3, 293D476X0020E2TE3, and 593D476X0020D2TE3 are manufacturer alternatives meeting identical 47 µF / 20 V / ±20% specifications in 2917 package. ESR values range from 200 mOhm to 700 mOhm. All parts are Active status, ROHS3 compliant, and MSL 1 rated. Height variations exist: 293D476X0020E2TE3 reaches 0.170".
Frequently Asked Questions (FAQ)
Q: Can TAJD476K020RNJ replace TAJD476M020SNJ? A: Yes. TAJD476K020RNJ is electrically compatible with improved ±10% tolerance versus the original ±20%. Both maintain 47 µF capacitance, 20 V rating, 2917 package, and identical operating temperature range. Packaging differs (Cut Tape & Digi-Reel vs Tape & Reel).
Q: What is the difference between TAJD and TAJY series parts? A: Both series use identical electrical specifications (47 µF, 20 V, 900 mOhm ESR). The primary difference is seated height: TAJD series maximum height is 0.122" (3.10 mm), while TAJY series is 0.079" (2.00 mm). TAJY is suitable for applications with height constraints.
Q: Can I use a 25 V rated part in a 20 V application? A: Yes. TAJD476K025RNJ and TAJD476M025RNJ are rated for 25 V and are compatible with 20 V circuits. Higher voltage rating provides additional design margin and does not affect circuit operation at lower voltages.
Q: How does ESR affect part selection? A: ESR (Equivalent Series Resistance) determines impedance characteristics. Lower ESR values (150 mOhm in TPSE476M020R0150 vs 900 mOhm in TAJD476M020SNJ) reduce voltage ripple and heat generation in high-frequency applications. Selection depends on circuit requirements.
Q: Are Vishay Sprague parts direct replacements? A: Vishay Sprague 293D and 593D series parts match the TAJD476M020SNJ in capacitance (47 µF), voltage (20 V), tolerance (±20%), and package (2917). All are ROHS3 compliant and MSL 1 rated. ESR and height specifications vary by part number.
Q: What does MSL 1 rating mean? A: MSL (Moisture Sensitivity Level) 1 indicates unlimited floor life. These parts do not require special moisture control during storage or handling, simplifying logistics and assembly processes.
Q: Can packaging type (Tape & Reel vs Cut Tape) affect compatibility? A: Packaging type affects handling and automated assembly processes but does not impact electrical or mechanical compatibility. Both formats contain identical components in the same 2917 package footprint.
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