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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RM14F2801CT

RM14F2801CT

CAL-CHIP ELECTRONICS INC.

RES SMD 2.8K OHM 1% 1/3W 1210

50000
RM10J510CT

RM10J510CT

CAL-CHIP ELECTRONICS INC.

RES SMD 51 OHM 5% 1/8W 0805

30000
RM12J5R6CT

RM12J5R6CT

CAL-CHIP ELECTRONICS INC.

RES SMD 5.6 OHM 5% 1/4W 1206

0
RM10F3092CT

RM10F3092CT

CAL-CHIP ELECTRONICS INC.

RES SMD 30.9K OHM 1% 1/8W 0805

100000
RM10F8062CT

RM10F8062CT

CAL-CHIP ELECTRONICS INC.

RES SMD 80.6K OHM 1% 1/8W 0805

60000
RN25B2150CT4-25

RN25B2150CT4-25

CAL-CHIP ELECTRONICS INC.

RES SMD 215 OHM 0.1% 1/2W 2512

0
RN04D1073CT10-25

RN04D1073CT10-25

CAL-CHIP ELECTRONICS INC.

RES SMD 107K OHM 0.5% 1/16W 0402

0
RM10F9312CT

RM10F9312CT

CAL-CHIP ELECTRONICS INC.

RES SMD 93.1K OHM 1% 1/8W 0805

5000
RM14J105CT

RM14J105CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1M OHM 5% 1/3W 1210

30000
RN04B4020CT10-25

RN04B4020CT10-25

CAL-CHIP ELECTRONICS INC.

RES SMD 402 OHM 0.1% 1/16W 0402

20000
RM12J1R6CT

RM12J1R6CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.6 OHM 5% 1/4W 1206

5000
RM10F2205CT

RM10F2205CT

CAL-CHIP ELECTRONICS INC.

RES SMD 22M OHM 1% 1/8W 0805

0
RM12F3001CT

RM12F3001CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3K OHM 1% 1/4W 1206

0
RM25J561CT

RM25J561CT

CAL-CHIP ELECTRONICS INC.

RES SMD 560 OHM 5% 1W 2512

0
RM25J240CT

RM25J240CT

CAL-CHIP ELECTRONICS INC.

RES SMD 24 OHM 5% 1W 2512

8000
RM12J300CT

RM12J300CT

CAL-CHIP ELECTRONICS INC.

RES SMD 30 OHM 5% 1/4W 1206

40000
RN04D5662CT10-25

RN04D5662CT10-25

CAL-CHIP ELECTRONICS INC.

RES 56.2K OHM 0.5% 1/16W 0402

0
RM12F6810CT

RM12F6810CT

CAL-CHIP ELECTRONICS INC.

RES SMD 681 OHM 1% 1/4W 1206

35000
RM14F1004CT

RM14F1004CT

CAL-CHIP ELECTRONICS INC.

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

15000
RM10F1212CT

RM10F1212CT

CAL-CHIP ELECTRONICS INC.

RES SMD 12.1K OHM 1% 1/8W 0805

40000

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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