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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RN10B5602CT5-25

RN10B5602CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 56K OHM 0.1% 1/10W 0805

15000
RM10F3163CT

RM10F3163CT

CAL-CHIP ELECTRONICS INC.

RES SMD 316K OHM 1% 1/8W 0805

80000
RM10F6342CT

RM10F6342CT

CAL-CHIP ELECTRONICS INC.

RES SMD 63.4K OHM 1% 1/8W 0805

45000
RN10D1002CT5-25

RN10D1002CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 10K OHM 0.5% 1/10W 0805

65000
RM12F9532CT

RM12F9532CT

CAL-CHIP ELECTRONICS INC.

RES SMD 95.3K OHM 1% 1/4W 1206

10000
RM12J1R8CT

RM12J1R8CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.8 OHM 5% 1/4W 1206

5000
RM10J100CT

RM10J100CT

CAL-CHIP ELECTRONICS INC.

RES SMD 10 OHM 5% 1/8W 0805

30000
RM12F48R7CT

RM12F48R7CT

CAL-CHIP ELECTRONICS INC.

RES SMD 48.7 OHM 1% 1/4W 1206

285000
RM20F63R4CT

RM20F63R4CT

CAL-CHIP ELECTRONICS INC.

RES SMD 63.4 OHM 1% 1/2W 2010

20000
RM12F1272CT

RM12F1272CT

CAL-CHIP ELECTRONICS INC.

RES SMD 12.7K OHM 1% 1/4W 1206

0
RM14F1001CT

RM14F1001CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1K OHM 1% 1/3W 1210

10000
RN06D2742CT5-25

RN06D2742CT5-25

CAL-CHIP ELECTRONICS INC.

RES 27.4K OHM 0.5% 1/16W 0603

0
RM12F16R5CT

RM12F16R5CT

CAL-CHIP ELECTRONICS INC.

RES SMD 16.5 OHM 1% 1/4W 1206

5000
RM25F3400CT

RM25F3400CT

CAL-CHIP ELECTRONICS INC.

RES SMD 34 OHM 1% 1W 2512

0
RM10F3904CT

RM10F3904CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3.9M OHM 1% 1/8W 0805

0
RM10F3483CT

RM10F3483CT

CAL-CHIP ELECTRONICS INC.

RES SMD 348K OHM 1% 1/8W 0805

10000
RN06B24R9CT5-25

RN06B24R9CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 24.9 OHM 0.1% 1/16W 0603

5000
RM20F9091CT-X

RM20F9091CT-X

CAL-CHIP ELECTRONICS INC.

RES SMD 9.09K OHM 1% 1/2W 2010

0
RM10F3R01CT

RM10F3R01CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3.01 OHM 1% 1/8W 0805

0
RM12F5600CT

RM12F5600CT

CAL-CHIP ELECTRONICS INC.

RES SMD 560 OHM 1% 1/4W 1206

0

Chip Resistors-Surface Mount

1. Overview

Surface Mount Chip Resistors (SMD Resistors) are passive electronic components designed to limit current flow and divide voltages in printed circuit boards (PCBs). As key elements in Surface Mount Technology (SMT), they enable high-density PCB layouts and automated manufacturing. Their miniaturized footprint and reliability make them essential for modern electronics, including smartphones, automotive systems, and industrial equipment.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Thick Film ResistorsCost-effective, standard tolerance ( 1%-5%), power ratings up to 1WConsumer electronics, power supplies
Thin Film ResistorsHigh precision ( 0.01%), low noise, stable temperature coefficientsMedical devices, precision instrumentation
Power ResistorsHigh power dissipation (up to 3W), robust thermal managementMotor drives, EV battery management systems
Network ResistorsMultiple resistors in single package, matched temperature coefficientsDigital circuits, memory modules
Wirewound ResistorsHigh inductance, precise low-resistance valuesAudio amplifiers, industrial control systems

3. Structure and Composition

Typical SMD resistors consist of: - Ceramic substrate (Alumina, 96% Al2O3) - Resistive layer (Ruthenium oxide for thick film, Nichrome for thin film) - Termination electrodes (Ni/Sn or Ag/Pd metallization) - Protective coating (Epoxy or glass encapsulation) Standard packages follow EIA dimensions (e.g., 0402, 0603, 0805).

4. Key Technical Specifications

ParameterDescriptionImportance
Resistance Range1 to 10M (film), 0.1 to 100k (power)Determines current control capability
Tolerance 0.01% (precision) to 5% (general)Impacts circuit accuracy
Power Rating0.05W to 3W @ 70 CDefines thermal dissipation limits
TCR 5ppm/ C (thin film) to 200ppm/ CAffects stability over temperature
Operating Temp-55 C to +155 CDefines environmental reliability
Voltage Coefficient<0.1ppm/VEnsures voltage stability

5. Application Fields

  • Consumer Electronics: Smartphones, wearables, IoT devices
  • Automotive: ADAS sensors, battery management systems, ECUs
  • Industrial: PLCs, motor drives, power converters
  • Telecom: 5G base stations, optical transceivers
  • Medical: Diagnostic equipment, implantable devices

6. Leading Manufacturers and Products

ManufacturerRepresentative SeriesKey Features
YageoCRCW Series0.05W-1W, 0.1% tolerance
VishayCRCWE SeriesThin film, TCR 25ppm/ C
ROHMMCR SeriesPower resistors up to 2W
OhmitePWR SeriesHigh-power 3W devices
BournsCRCU SeriesNetwork resistors with 8-element arrays

7. Selection Recommendations

Consider: - Required resistance tolerance and power rating - Operating temperature range (automotive needs -40 C to +125 C) - Package size constraints (e.g., 0402 for mobile devices) - Long-term stability requirements (medical applications prefer thin film) - Cost vs. performance trade-offs (consumer vs. industrial use) Example: For smartphone power management, select 0603 thick film resistors with 1% tolerance and 125 C rating.

8. Industry Trends

Key trends include: - Miniaturization: Development of 0201 and 01005 packages - Higher precision: Sub-0.01% tolerance thin film resistors - Enhanced thermal management: New materials for power densities >1W/mm - Automotive growth: AEC-Q200 qualified parts for EVs - Smart manufacturing: AI-driven resistor selection tools - Sustainability: Lead-free and halogen-free material adoption

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