293D476X9010D2T - 47µF 10V Molded Tantalum Capacitor D-Case | Vishay
부품 번호: 293D476X9010D2T ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.02 | $1.02 |
| 10 | $0.86 | $8.60 |
| 100 | $0.61 | $61.00 |
| 500 | $0.48 | $240.00 |
| 1,000 | $0.39 | $390.00 |
293D476X9010D2T 개요
A solid tantalum electrolytic capacitor is a polarized component that uses a sintered tantalum pellet and a manganese-dioxide or polymer cathode to deliver high volumetric efficiency in surface-mount packages. Compared with aluminum electrolytics, tantalum capacitors offer lower ESR, no dry-out risk, and stable capacitance over time, making them a preferred choice for point-of-load bypassing, hold-up energy storage, and analog signal-chain filtering where reliability and stable parameters across the operating lifetime are critical.
Key features of the 293D476X9010D2T include the molded plastic epoxy body that protects the tantalum element from mechanical stress and provides a flat top surface for reliable vacuum-pick-and-place assembly. The D-case (7343 metric) measures approximately 7.3 mm × 4.3 mm × 2.8 mm, suiting standard reflow profiles. The capacitor is supplied on 7-inch reels for automated assembly, with an embossed carrier-pocket standard for 12 mm tape per EIA 481.
The 293D476X9010D2T is commonly used in industrial controllers, automotive body electronics, telecom infrastructure, and consumer devices for output filtering on switch-mode power supplies, local decoupling of high-current digital ICs, and timing-circuit energy storage. Designers value the 293D series for its predictable surge-current handling and for compatibility with the standard surface-mount reflow process used in modern SMT lines. When laying out the PCB, observe the standard D-case land pattern recommended in the Vishay datasheet, respect the polarity stripe, and never apply reverse DC bias.
드롭인 대체품: 293D476X9010D2T — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
293D476X9010D2TE3
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
T491B476K010AT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TAJD476K010RNJ
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TBJD476K010CRLD0H23
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
293D476X9010D2T 최대 정격 & 전기적 특성
| Capacitance | 47 µF |
| Capacitance Tolerance | ±10 % |
| Rated Voltage (DC) | 10 V |
| Dissipation Factor (max) | 10 % |
| Case Code | D (EIA 7343) |
| Case Size (metric) | 7343 (7.3 mm × 4.3 mm) |
| Case Height | 2.8 mm (typical D-case) |
| 실장 유형 | Surface Mount |
| Packaging | Tape & Reel (7-inch reel) |
| 동작 온도 | -55 °C to +125 °C |
| Dielectric Type | Solid Tantalum (MnO2 cathode) |
| Polarity | Polarized |
| RoHS 상태 | Compliant |
293D476X9010D2T 2.8 mm (typical d-case) 핀 구성 가이드
293D476X9010D2T(2.8 mm (typical d-case) 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: 293D476X9010D2T.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
293D476X9010D2T 적합 용도: 6 애플리케이션s: Switch-Mode Power Supply Output Filtering, Point-of-Load Decoupling for Digital ICs, Hold-Up and Backup Energy Storage, Analog Signal-Chain Filtering, Industrial Control Board Decoupling, Consumer and Telecom Equipment Filtering.
Switch-Mode Power Supply Output Filtering
The 293D476X9010D2T's 47 µF capacitance and 10 V rating make it a strong fit for output-stage filtering on 3.3 V and 5 V buck-converter rails. Placed across the inductor-to-load node with a 0.1 µF ceramic bypass, the solid tantalum absorbs load-transient spikes and smooths ripple without the dry-out risk of aluminum electrolytics. Its compact TDF electronics-grade 7343 D-case footprint supports modern high-density buck switching regulator layouts. Compared with aluminum polymer types, the 293D package offers stable capacitance over decades and immunity to thermal aging, at the cost of higher ESR.
추천
Point-of-Load Decoupling for Digital ICs
High-current digital ICs - FPGAs, microcontrollers, ASICs - need low-impedance bulk decoupling close to the supply pins. The 293D476X9010D2T's 47 µF storage and 10 V headroom fit typical 3.3 V and 5 V POL rails, with the D-case footprint allowing placement in tight BGA breakouts. Used alongside MLCCs in parallel, the tantalum handles the lower-frequency transient energy that ceramic capacitors cannot. Designers should derate to 5 V (50% of 10 V rating) on hot PCBs above 85 °C to minimize surge-current failure risk.
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Hold-Up and Backup Energy Storage
The 293D476X9010D2T's 47 µF at 10 V delivers approximately 2.35 mJ of stored energy (E = ½·C·V²), sufficient for short hold-up requirements in industrial controllers, RTC backup circuits, and PLC logic-retention applications. The solid tantalum's stable capacitance over time keeps the backup-time prediction accurate across the product's operating life, unlike aluminum electrolytics which lose 30% over a decade. Place the capacitor near the hold-up load with low-impedance routing to the diode, and observe the 50% voltage derating on rails above 5 V.
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Analog Signal-Chain Filtering
Precision analog front-ends, op-amp rails, and ADC reference supplies benefit from bulk filtering that does not inject switching noise. The 293D476X9010D2T's solid-tantalum dielectric provides low-noise bulk capacitance for op-amp dual-rail filtering and ADC reference bypassing. Its 10 V rating suits ±5 V or 5 V analog rails with ample margin. The 7343 D-case footprint supports miniaturized analog front-end layouts. The trade-off versus film capacitors is higher ESR; versus MLCCs it is stable capacitance at DC bias.
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Industrial Control Board Decoupling
Industrial PLCs, motor-control boards, and instrumentation PCBs benefit from the 293D476X9010D2T's robust mechanical, 1-3Ω ESR envelope, and EIA-D-case land pattern. Placed across 24 V-to-5 V buck outputs and 5 V digital rails, the solid-tantalum dielectric provides stable bulk decoupling for analog input stages and digital communication ICs. The -55 °C to +125 °C operating temperature matches harsh industrial environments. Designers should always include a series resistor or input-current limiter at first turn-on to control inrush surge.
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Consumer and Telecom Equipment Filtering
Consumer audio amplifiers, set-top boxes, and telecom line cards use the 293D476X9010D2T for bulk decoupling of mixed-signal ICs and DC-DC converter outputs. The 47 µF capacitance at 10 V provides stable filtering for 3.3 V and 5 V rails powering DSP audio processors. The triangular solid-tantalum dielectric has no dry-out risk over years of consumer-product operating life, unlike aluminum electrolytics. Mounted in the standard D-case, the part fits high-density consumer SMD layouts with full reflow compatibility.
추천
추천 제품 요약
엔지니어링 참조 데이터: 293D476X9010D2T — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 293D476X9010D2TE3 | T491B476K010AT | TAJD476K010RNJ | TBJD476K010CRLD0H23 |
|---|---|---|---|---|---|
| Brand | Vishay Intertechnology | Vishay Intertechnology | KEMET | KYOCERA AVX | KYOCERA AVX |
| Package | D (EIA 7343, 7.3x4.3 mm) | D (EIA 7343, 7.3x4.3 mm) - same | D (EIA 7343, 7.3x4.3 mm) - same | D (EIA 7343, 7.3x4.3 mm) - same | D (EIA 7343, 7.3x4.3 mm) - same |
| Capacitance | 47 µF | 47 µF | 47 µF | 47 µF | 47 µF |
| Rated Voltage | 10 V | 10 V | 10 V | 10 V | 10 V |
| Capacitance Tolerance | ±10 % | ±10 % | ±10 % | ±10 % | ±10 % |
| Series / Family | Vishay 293D (standard) | Vishay 293D (RoHS -E3) | KEMET T491 (commercial) | AVX TAJ (standard) | AVX TBJ (low-ESR) |
| Operating Temperature | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C |
주요 차별점
- Established 293D series with broad distributor inventory (vs T491B476K010AT (KEMET))
- Lower ESR option available in same D-case footprint (vs TAJD476K010RNJ (AVX TAJ))
- Compact D-case saves PCB area vs larger E/V cases (vs Higher-capacitor 293D477X9010E2T (E-case))
설계 노트
Apply a 50% voltage derating on rails above 5 V - the 293D476X9010D2T is rated 10 V DC but should run at 5 V or less in continuous operation above 85 °C. Solid tantalum capacitors can fail short under high inrush-surge conditions; place an input-current-limiting resistor (1-10 Ω) at first turn-on to control the dV/dt. This is the most common cause of field failures for this part family.
Use the Vishay-recommended D-case land pattern from the datasheet, with approximately 4.4 mm × 2.4 mm pads and 2.0 mm pitch. The polarity stripe on the body marks the positive (+) terminal; reverse-biasing the part even briefly will cause failure. Maintain a keep-out zone of at least 1 mm below the capacitor for thermal relief and inspection of the solder fillet after reflow.
Estimated: ESR for the 293D476X9010D2T in D-case is typically 0.1-0.5 Ω at 100 kHz, but always verify against the manufacturer's datasheet curves. Do not substitute the smaller C-case (6032) 293D476X9010C2TE3 directly - it requires a different PCB footprint and is NOT pin-compatible with the D-case land pattern. When mounting near heat sources, derate voltage and check ripple current against the temperature-derating curves.
규정 준수 정보
RoHS compliant per Vishay product page. Halogen-free status not stated in inspected sources. Not an IC - AEC-Q100 not relevant; for AEC-Q200 automotive applications, choose AEC-Q200-qualified versions of the 293D series.
