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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RM10F7682CT

RM10F7682CT

CAL-CHIP ELECTRONICS INC.

RES SMD 76.8K OHM 1% 1/8W 0805

11000
RN10D24R9CT5-50

RN10D24R9CT5-50

CAL-CHIP ELECTRONICS INC.

RES SMD 24.9 OHM 0.5% 1/10W 0805

0
RM14J914CT

RM14J914CT

CAL-CHIP ELECTRONICS INC.

RES SMD 910K OHM 5% 1/3W 1210

50000
RM12F5231CT

RM12F5231CT

CAL-CHIP ELECTRONICS INC.

RES SMD 5.23K OHM 1% 1/4W 1206

55000
RM12F3403CT

RM12F3403CT

CAL-CHIP ELECTRONICS INC.

RES SMD 340K OHM 1% 1/4W 1206

75000
RN06B4022CT5-25

RN06B4022CT5-25

CAL-CHIP ELECTRONICS INC.

RES 40.2K OHM 0.1% 1/16W 0603

0
RM12J160CT

RM12J160CT

CAL-CHIP ELECTRONICS INC.

RES SMD 16 OHM 5% 1/4W 1206

10000
RM10F9532CT

RM10F9532CT

CAL-CHIP ELECTRONICS INC.

RES SMD 95.3K OHM 1% 1/8W 0805

35000
RM14F4023CT

RM14F4023CT

CAL-CHIP ELECTRONICS INC.

RES SMD 402K OHM 1% 1/3W 1210

0
RM12F5361CT

RM12F5361CT

CAL-CHIP ELECTRONICS INC.

RES SMD 5.36K OHM 1% 1/4W 1206

0
RN12B23R7CT5-50

RN12B23R7CT5-50

CAL-CHIP ELECTRONICS INC.

RES SMD 23.7 OHM 0.1% 1/8W 1206

5000
RM10F3832CT

RM10F3832CT

CAL-CHIP ELECTRONICS INC.

RES SMD 38.3K OHM 1% 1/8W 0805

0
RN04F1401CT10-25

RN04F1401CT10-25

CAL-CHIP ELECTRONICS INC.

RES SMD 1.4K OHM 1% 1/16W 0402

0
RM20F33R2CT

RM20F33R2CT

CAL-CHIP ELECTRONICS INC.

RES SMD 33.2 OHM 1% 1/2W 2010

0
RM12F1203CT

RM12F1203CT

CAL-CHIP ELECTRONICS INC.

RES SMD 120K OHM 1% 1/4W 1206

0
RN06D2402CT5-25

RN06D2402CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 24K OHM 0.5% 1/16W 0603

0
RM10F1201CT

RM10F1201CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.2K OHM 1% 1/8W 0805

50000
RM10F2R00CT

RM10F2R00CT

CAL-CHIP ELECTRONICS INC.

RES SMD 2 OHM 1% 1/8W 0805

15000
RM10F7501CT

RM10F7501CT

CAL-CHIP ELECTRONICS INC.

RES SMD 7.5K OHM 1% 1/8W 0805

55000
RM14J333CT

RM14J333CT

CAL-CHIP ELECTRONICS INC.

RES SMD 33K OHM 5% 1/3W 1210

270000

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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