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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RM10F4323CT

RM10F4323CT

CAL-CHIP ELECTRONICS INC.

RES SMD 432K OHM 1% 1/8W 0805

190000
RN04D1001CT10-25

RN04D1001CT10-25

CAL-CHIP ELECTRONICS INC.

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

10000
RN12D4703CT5-25

RN12D4703CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 470K OHM 0.5% 1/8W 1206

60000
RN10D2612CT5-50

RN10D2612CT5-50

CAL-CHIP ELECTRONICS INC.

RES 26.1K OHM 0.5% 1/10W 0805

5000
RN10B1002CT5-10

RN10B1002CT5-10

CAL-CHIP ELECTRONICS INC.

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

0
RM14J392CT

RM14J392CT

CAL-CHIP ELECTRONICS INC.

RES SMD 3.9K OHM 5% 1/3W 1210

5000
RM20J000CT

RM20J000CT

CAL-CHIP ELECTRONICS INC.

RES SMD 0 OHM JUMPER 1/2W 2010

104000
RM12F1370CT

RM12F1370CT

CAL-CHIP ELECTRONICS INC.

RES SMD 137 OHM 1% 1/4W 1206

20000
RM10F7152CT

RM10F7152CT

CAL-CHIP ELECTRONICS INC.

RES SMD 71.5K OHM 1% 1/8W 0805

20000
RM10F5602CT

RM10F5602CT

CAL-CHIP ELECTRONICS INC.

RES SMD 56K OHM 1% 1/8W 0805

10000
RM10F3900CT

RM10F3900CT

CAL-CHIP ELECTRONICS INC.

RES SMD 390 OHM 1% 1/8W 0805

0
RM10J135CT

RM10J135CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.3M OHM 5% 1/8W 0805

40000
RM10J475CT

RM10J475CT

CAL-CHIP ELECTRONICS INC.

RES SMD 4.7M OHM 5% 1/8W 0805

85000
RN04B1213CT10-25

RN04B1213CT10-25

CAL-CHIP ELECTRONICS INC.

RES SMD 1.2K OHM 0.1% 1/16W 0402

20000
RM10F1822CT

RM10F1822CT

CAL-CHIP ELECTRONICS INC.

RES SMD 18.2K OHM 1% 1/8W 0805

35000
RM10F9091CT

RM10F9091CT

CAL-CHIP ELECTRONICS INC.

RES SMD 9.09K OHM 1% 1/8W 0805

25000
RM12F2400CT-H

RM12F2400CT-H

CAL-CHIP ELECTRONICS INC.

RES SMD 240 OHM 1% 1/4W 1206

0
RM12J273CT

RM12J273CT

CAL-CHIP ELECTRONICS INC.

RES SMD 27K OHM 5% 1/4W 1206

125000
RN06B12R4CT5-25

RN06B12R4CT5-25

CAL-CHIP ELECTRONICS INC.

RES SMD 12.4 OHM 0.1% 1/16W 0603

0
RM10F1621CT

RM10F1621CT

CAL-CHIP ELECTRONICS INC.

RES SMD 1.62K OHM 1% 1/8W 0805

45000

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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