CRCW020120K0FKED - 20kΩ 1% 0.05W 0201 Thick Film Resistor | Vishay
부품 번호: CRCW020120K0FKED ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0.1 | $0.10 |
| 10 | $0.085 | $0.85 |
| 100 | $0.054 | $5.40 |
| 1,000 | $0.03 | $30.00 |
| 5,000 | $0.022 | $110.00 |
| 10,000 | $0.019 | $190.00 |
CRCW020120K0FKED 개요
A thick-film chip resistor is a surface-mount passive component in which a resistive paste (typically a ruthenium-oxide or silver-palladium glaze) is screen-printed onto an alumina ceramic substrate, then fired at high temperature and laser- or laser-trimmed to the target value. The 0201 case size (0.6 mm × 0.3 mm) belongs to the chip-resistor hierarchy EIA 0201 < 0402 < 0603 < 0805 < 1206, the most miniaturized SMD resistor family. Thick-film resistors sit between carbon-film and thin-film technologies: cheaper than thin-film yet more stable and lower-noise than carbon-comp, making them the workhorse of consumer, industrial, and automotive electronics.
Key specifications of the CRCW020120K0FKED include ±1% resistance tolerance, ±100 ppm/°C TCR, 0.05 W power rating at 70°C, a maximum working voltage of 30 V, and 0201 footprint with wraparound terminations suitable for reflow soldering. The standard reel quantity is 10,000 pieces per 7-inch reel on 4 mm pitch paper carrier tape, making it ideal for high-speed SMT placement.
Typical applications for the CRCW020120K0FKED include pull-up and pull-down resistors in mobile and wearable devices, LED current-limiting networks, precision voltage dividers in sensor signal conditioning, and general-purpose I/O termination. The 100 ppm/°C TCR keeps drift small enough for analog signal-chain bias networks in compact designs.
When designing with this part, observe derating: at 70°C ambient the resistor handles full 0.05 W, but power capability decreases linearly to zero at 155°C. Keep solder-pad lands to Vishay's recommended footprint for reliable solder-joint formation and to minimize thermal stress during reflow.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. According to Vishay datasheets, the CRCW0201 e3-series parts are RoHS-compliant with Pb-free reflow profiles to J-STD-020.
드롭인 대체품: CRCW020120K0FKED — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
CRCW020120K0FKEE
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
RC0201FR-0720KL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
RC1005F202CS
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ERJ-1GEF2002C
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ERJ-1GNF2002C
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
CRCW020120K0FKED 최대 정격 & 전기적 특성
| Resistance | 20 kΩ |
| Resistance Tolerance | ±1% |
| Power Rating | 0.05 W (1/20 W) |
| Temperature Coefficient (TCR) | ±100 ppm/°C |
| Maximum Working Voltage | 30 V |
| Package / Case Size | 0201 (0603 Metric) |
| 동작 온도 범위 | -55°C to +155°C |
| Resistor Technology | Thick Film |
| 실장 유형 | Surface Mount |
| Termination Style | Solder Pad (wraparound) |
| Standard Reel Quantity | 10000 pcs / 7" reel |
| Series | CRCW e3 |
| Dimensions (L × W × H) | 0.6 mm × 0.3 mm × 0.23 mm |
| RoHS Compliance | Yes (Pb-free) |
| MSL 레벨 | MSL 1 (unlimited floor life) |
CRCW020120K0FKED 핀 구성
| 핀 1 | Term 1 — Solder pad - left termination (resistor terminal A) |
| 핀 2 | Term 2 — Solder pad - right termination (resistor terminal B) |
일반적인 애플리케이션
CRCW020120K0FKED 적합 용도: 6 애플리케이션s: Mobile and Wearable Pull-up/Pull-down Resistors, LED Current-Limiting and Bias Networks, Precision Voltage Dividers in Sensor Signal Conditioning, General-Purpose I/O Termination, Battery Management and Power Sequencing Networks, Automotive and Industrial Compact Modules.
Mobile and Wearable Pull-up/Pull-down Resistors
The CRCW020120K0FKED is widely used as a pull-up or pull-down bias resistor on digital signal lines in smartphones, smartwatches, and TWS earbud designs. The 0201 footprint (0.6 mm × 0.3 mm) saves critical PCB real estate where every square millimeter counts, allowing higher component density on main logic boards. With 20 kΩ at ±1% tolerance, this part sets clean idle-state logic levels on I2C, SPI, GPIO, and reset lines without injecting excessive current. The 100 ppm/°C TCR ensures bias stability over typical wearable operating ranges of 0°C to 40°C, and the 0.05 W rating easily handles continuous load in digital biasing circuits. Pair with a logic-level companion MPN such as the ATMEGA328P-AUR MCU.
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LED Current-Limiting and Bias Networks
The CRCW020120K0FKED serves as a series current-limiting resistor for indicator LEDs and backlight LEDs in space-constrained designs. At 20 kΩ with 0.05 W rating, it is well-suited for low-current LED biasing in status indicators on IoT sensor modules, BLE beacons, and similar devices where LED current is below 2 mA. The ±1% tolerance ensures consistent LED brightness across production batches, while the 100 ppm/°C TCR keeps color and intensity stable across operating temperatures. The 0201 footprint enables LED-driver circuits to be placed adjacent to the LED even on the smallest PCBs. Combined with a low-power LED driver like the A6217KLJTR-1-T, this resistor builds complete indicator sub-systems in tight form factors.
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Precision Voltage Dividers in Sensor Signal Conditioning
In sensor signal-conditioning networks, the CRCW020120K0FKED forms half of a precision voltage divider to scale analog sensor outputs into MCU-friendly ranges. With ±1% tolerance and ±100 ppm/°C TCR, this resistor contributes predictable divider ratios in temperature, pressure, and humidity sensor front-ends. The 30 V maximum working voltage safely handles industrial sensor rails up to 24 V systems. The 0201 size is ideal for high-density analog front-end PCBs where multiple divider channels must fit within a few square millimeters. Pair with a precision ADC such as the ADS1118QDGSRQ1 to build complete analog input modules for IoT edge devices.
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General-Purpose I/O Termination
The CRCW020120K0FKED is used as a general-purpose I/O termination resistor on USB, UART, and CAN data lines, providing impedance matching and signal integrity in densely-populated designs. At 20 kΩ, it serves effectively as a weak pull-up or termination element on low-speed communication buses. The 0.05 W rating is more than sufficient for these low-power roles, while the 0201 footprint allows termination resistors to be placed directly under connector pins without intruding into routing channels. This is critical in USB Type-C, mini-USB, and similar connector PCBs where every trace must be carefully routed. Combine with high-speed interface ICs such as the CP2102N-A02-GQFN28 USB-UART bridge for compact USB dongles.
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Battery Management and Power Sequencing Networks
In battery management and power-sequencing circuits, the CRCW020120K0FKED provides voltage feedback and current-sensing functions for portable Li-ion and Li-poly battery-powered devices. The 20 kΩ value suits voltage-divider feedback for low-power DC-DC converters and battery monitors. The 100 ppm/°C TCR keeps feedback accuracy stable across battery discharge temperature ranges, while the small 0201 footprint allows feedback networks to be placed adjacent to power ICs without occupying routing space. This is essential in space-constrained wearables and hearables where battery and power management circuitry share tight PCBs with RF and audio circuits. Integrate with battery charger ICs like the BQ25883RGER for complete compact power systems.
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Automotive and Industrial Compact Modules
The CRCW020120K0FKED is found in compact automotive and industrial modules such as sensor nodes, body controllers, and miniaturized actuator drivers where PCB area is at a premium. AEC-Q200 compliance is not applicable to this standard grade (the AEC-Q200 version is CRCW020120K0FKED-A variant family); for automotive, verify with manufacturer datasheet. The 30 V max working voltage handles 12 V and 24 V industrial bus systems through appropriate divider ratios. Operating temperature range of -55°C to +155°C exceeds industrial -40°C to +85°C requirements. The 0201 footprint allows sensor cluster designs with 10+ resistors per cm². Combine with industrial MCUs like the ATSAML21G17B-U for low-power industrial sensor platforms.
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추천 제품 요약
엔지니어링 참조 데이터: CRCW020120K0FKED — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | CRCW020120K0FKEE | RC0201FR-0720KL | RC1005F202CS | ERJ-1GEF2002C |
|---|---|---|---|---|---|
| Brand | Vishay Intertechnology | Vishay Intertechnology | YAGEO | Samsung Electro-Mechanics | Panasonic |
| Package | 0201 (0603 Metric) | 0201 (0603 Metric) - same | 0201 (0603 Metric) - same | 0201 (0603 Metric) - same | 0201 (0603 Metric) - same |
| Resistance | 20 kΩ | 20 kΩ | 20 kΩ | 20 kΩ | 20 kΩ |
| Tolerance | ±1% | ±1% | ±1% | ±1% | ±1% |
| Power Rating | 0.05 W | 0.05 W | 0.05 W | 0.05 W | 0.05 W |
| TCR | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C | ±100 ppm/°C |
| Operating Temperature | -55°C to +155°C | -55°C to +155°C | -55°C to +155°C | -55°C to +155°C | -55°C to +155°C |
주요 차별점
- Industry-standard 0201 footprint with established second-source ecosystem (vs RC0201FR-0720KL (Yageo))
- Tighter temperature coefficient than standard 0201 alternatives (vs ERJ-1GNF2002C (Panasonic))
- Pb-free e3 plating with broad compliance certifications (vs Samsung RC1005F202CS)
설계 노트
Power derating is mandatory for the CRCW020120K0FKED: at 70°C ambient the resistor delivers full 0.05 W, but rating decreases linearly to zero at +155°C. For applications near the rating limit, calculate actual dissipation P = I² × R or P = V²/R and ensure the operating point stays below 50% of rated power at maximum ambient temperature. For high-voltage (>15 V) low-current divider networks, verify that V × I does not exceed 0.05 W to prevent thermal runaway.
Use the IPC-7351 nominal 0201 land pattern: 0.30 mm × 0.40 mm pads on 0.30 mm pitch with solder mask defined (SMD) pads for best solder-joint formation. Avoid NSMD (non-solder mask defined) pads unless reflow profile is carefully controlled. The 0201 case is highly sensitive to tombstoning; ensure symmetric pad geometry and balanced thermal mass on both terminations. Hand-rework is impractical below 0402 size, so design test points and rework access from the start.
Avoid using the CRCW020120K0FKED in precision analog networks where tolerance drift over temperature matters - the 100 ppm/°C TCR contributes 1% drift across just 100°C swing. For instrumentation-grade dividers, use thin-film 0201 resistors (e.g., Vishay PNM series) with ±25 ppm/°C TCR instead. Also, do not exceed the 30 V maximum working voltage even momentarily during ESD events; place a TVS or zener diode upstream if voltage transients are possible.
Place the CRCW020120K0FKED on a flat, undisturbed section of PCB without vias underneath. Vias within 0.2 mm of the land pattern can wick solder during reflow, causing insufficient solder joints. Keep the resistor at least 1 mm away from tall components to avoid shadowing during wave or selective soldering. For high-density designs, group multiple 0201 resistors in parallel lines with consistent orientation to simplify optical inspection during production QA.
규정 준수 정보
RoHS, REACH, and halogen-free per IEC 61249-2-21 per Vishay CRCW e3-series datasheet. AEC-Q200 qualification is not applicable to this commercial-grade part - AEC-Q200 automotive variants exist in the Vishay CRCW family. Conflict-minerals reporting is compliant with Dodd-Frank Section 1502.
