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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RCS08056R81FKEA

RCS08056R81FKEA

Vishay / Dale

RES SMD 6.81 OHM 1% 0.4W 0805

0
M55342K12B9B42RWS

M55342K12B9B42RWS

Vishay / Dale

RES SMD 9.42KOHM 0.1% 1/10W 0603

0
M55342K12B20D0RWSV

M55342K12B20D0RWSV

Vishay / Dale

RES SMD 20 OHM 1% 1/10W 0603

0
CRCW12068R25FKEA

CRCW12068R25FKEA

Vishay / Dale

RES SMD 8.25 OHM 1% 1/4W 1206

8725
TNPW0805105KBYEA

TNPW0805105KBYEA

Vishay / Dale

RES 105K OHM 0.1% 1/5W 0805

0
CRCW0805137RFKEAC

CRCW0805137RFKEAC

Vishay / Dale

RES 137 OHM 1% 1/8W 0805

0
M55342H12B18E2RTS

M55342H12B18E2RTS

Vishay / Dale

RES SMD 18.2K OHM 1% 1/10W 0603

0
TNPW0603154KFEEA

TNPW0603154KFEEA

Vishay / Dale

RES 154K OHM 1% 1/8W 0603

0
D55342E07B8E06RT0

D55342E07B8E06RT0

Vishay / Dale

RES SMD 8.06K OHM 1% 1/4W 1206

0
M55342H05B6E19MWS

M55342H05B6E19MWS

Vishay / Dale

RES SMD 6.19K OHM 1% 0.225W 2208

0
CRCW20101K05FKEF

CRCW20101K05FKEF

Vishay / Dale

RES SMD 1.05K OHM 1% 3/4W 2010

5
TNPW060343K2BETA

TNPW060343K2BETA

Vishay / Dale

RES 43.2K OHM 0.1% 1/10W 0603

0
WSC25152K000FEA

WSC25152K000FEA

Vishay / Dale

RES SMD 2K OHM 1% 1W 2515

0
CRCW2512115KFKEG

CRCW2512115KFKEG

Vishay / Dale

RES SMD 115K OHM 1% 1W 2512

4878
TNPW08054K12BETA

TNPW08054K12BETA

Vishay / Dale

RES 4.12K OHM 0.1% 1/8W 0805

0
TNPW0603121KBEEA

TNPW0603121KBEEA

Vishay / Dale

RES 121K OHM 0.1% 1/8W 0603

0
CRCW12061K30FKTA

CRCW12061K30FKTA

Vishay / Dale

RES SMD 1.3K OHM 1% 1/4W 1206

0
TNPW040220K0BYED

TNPW040220K0BYED

Vishay / Dale

RES 20K OHM 0.1% 1/10W 0402

0
TNPU060388K7AZEN00

TNPU060388K7AZEN00

Vishay / Dale

RES SMD 88.7K OHM 1/10W 0603

0
M55342E04B475DRT5

M55342E04B475DRT5

Vishay / Dale

RES SMD 475 OHM 1% 0.15W 1505

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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