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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RN06F1002CT5-X50

RN06F1002CT5-X50

CAL-CHIP ELECTRONICS INC.

RES SMD 10K OHM 1% 1/10W 0603

0
RM12F3011CT

RM12F3011CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3.01K OHM 1% 1/4W 1206

20000
RM12F16R9CT

RM12F16R9CT

CAL-CHIP ELECTRONICS INC.

RES SMD 16.9 OHM 1% 1/4W 1206

0
RM10F5601CT

RM10F5601CT

CAL-CHIP ELECTRONICS INC.

RES SMD 5.6K OHM 1% 1/8W 0805

70000
RM12F2940CT

RM12F2940CT

CAL-CHIP ELECTRONICS INC.

RES SMD 294 OHM 1% 1/4W 1206

0
RM14F7151CT

RM14F7151CT

CAL-CHIP ELECTRONICS INC.

RES SMD 7.15K OHM 1% 1/3W 1210

10000
RN10D47R5CT5-25

RN10D47R5CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 47.5 OHM 0.5% 1/10W 0805

10000
RM12F3013CT

RM12F3013CT

CAL-CHIP ELECTRONICS INC.

RES SMD 301K OHM 1% 1/4W 1206

60000
RM12J220CT

RM12J220CT

CAL-CHIP ELECTRONICS INC.

RES SMD 22 OHM 5% 1/4W 1206

190000
RM14J132CT

RM14J132CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.3K OHM 5% 1/3W 1210

0
RM10J2R0CT

RM10J2R0CT

CAL-CHIP ELECTRONICS INC.

RES SMD 2 OHM 5% 1/8W 0805

15000
RM12F7870CT

RM12F7870CT

CAL-CHIP ELECTRONICS INC.

RES SMD 787 OHM 1% 1/4W 1206

15000
RN10B1803CT5-25

RN10B1803CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 180K OHM 0.1% 1/10W 0805

0
RM10F30R0CT

RM10F30R0CT

CAL-CHIP ELECTRONICS INC.

RES SMD 30 OHM 1% 1/8W 0805

0
RM10J622CT

RM10J622CT

CAL-CHIP ELECTRONICS INC.

RES SMD 6.2K OHM 5% 1/8W 0805

25000
RM10F8872CT

RM10F8872CT

CAL-CHIP ELECTRONICS INC.

RES SMD 88.7K OHM 1% 1/8W 0805

165000
RM10F1133CT

RM10F1133CT

CAL-CHIP ELECTRONICS INC.

RES SMD 113K OHM 1% 1/8W 0805

10000
RM06F2R00CT

RM06F2R00CT

CAL-CHIP ELECTRONICS INC.

RES SMD 2 OHM 1% 1/10W 0603

0
RM10F36R0CT

RM10F36R0CT

CAL-CHIP ELECTRONICS INC.

RES SMD 36 OHM 1% 1/8W 0805

90000
RM12F4993CT

RM12F4993CT

CAL-CHIP ELECTRONICS INC.

RES SMD 499K OHM 1% 1/4W 1206

15000

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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