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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RN04B2672CT1-25

RN04B2672CT1-25

CAL-CHIP ELECTRONICS INC.

RES 26.7K OHM 0.1% 1/16W 0402

1000
RM12F3012CT

RM12F3012CT

CAL-CHIP ELECTRONICS INC.

RES SMD 30.1K OHM 1% 1/4W 1206

10000
RM20J6R8CT

RM20J6R8CT

CAL-CHIP ELECTRONICS INC.

RES SMD 6.8 OHM 5% 1/2W 2010

8000
RM20J000CT-H

RM20J000CT-H

CAL-CHIP ELECTRONICS INC.

RES SMD 0 OHM JUMPER 1/2W 2010

0
RM12F6192CT

RM12F6192CT

CAL-CHIP ELECTRONICS INC.

RES SMD 61.9K OHM 1% 1/4W 1206

10000
RM10F4123CT

RM10F4123CT

CAL-CHIP ELECTRONICS INC.

RES SMD 412K OHM 1% 1/8W 0805

20000
RM12J134CT

RM12J134CT

CAL-CHIP ELECTRONICS INC.

RES SMD 130K OHM 5% 1/4W 1206

40000
RM14F3161CT

RM14F3161CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3.16K OHM 1% 1/3W 1210

10000
RM12J622CT

RM12J622CT

CAL-CHIP ELECTRONICS INC.

RES SMD 6.2K OHM 5% 1/4W 1206

0
RM14F73R2CT

RM14F73R2CT

CAL-CHIP ELECTRONICS INC.

RES SMD 73.2 OHM 1% 1/3W 1210

5000
RM12F3302CT

RM12F3302CT

CAL-CHIP ELECTRONICS INC.

RES SMD 33K OHM 1% 1/4W 1206

145000
RM12F4750CT

RM12F4750CT

CAL-CHIP ELECTRONICS INC.

RES SMD 475 OHM 1% 1/4W 1206

65000
RM14F1692CT

RM14F1692CT

CAL-CHIP ELECTRONICS INC.

RES SMD 16.9K OHM 1% 1/3W 1210

40000
RM10F1203CT

RM10F1203CT

CAL-CHIP ELECTRONICS INC.

RES SMD 120K OHM 1% 1/8W 0805

445000
RM10F9760CT

RM10F9760CT

CAL-CHIP ELECTRONICS INC.

RES SMD 976 OHM 1% 1/8W 0805

15000
RN06B1000CT5-25

RN06B1000CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 100 OHM 0.1% 1/16W 0603

0
RM10F6811CT

RM10F6811CT

CAL-CHIP ELECTRONICS INC.

RES SMD 6.81K OHM 1% 1/8W 0805

360000
RM14F1472CT

RM14F1472CT

CAL-CHIP ELECTRONICS INC.

RES SMD 14.7K OHM 1% 1/3W 1210

5000
RM20J273CT

RM20J273CT

CAL-CHIP ELECTRONICS INC.

RES SMD 27K OHM 5% 1/2W 2010

4000
RM25J6R8CT

RM25J6R8CT

CAL-CHIP ELECTRONICS INC.

RES SMD 6.8 OHM 5% 1W 2512

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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