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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
MLFA25FTC510R

MLFA25FTC510R

Stackpole Electronics, Inc.

RES 510 OHM 1% 2/5W MELF 0204

2895
RNCF0402DTC30R9

RNCF0402DTC30R9

Stackpole Electronics, Inc.

RES 30.9 OHM 0.5% 1/16W 0402

0
CSR1206FT56L0

CSR1206FT56L0

Stackpole Electronics, Inc.

RES 0.056 OHM 1% 1/2W 1206

0
RNCF0603BTC3K90

RNCF0603BTC3K90

Stackpole Electronics, Inc.

RES 3.9K OHM 0.1% 1/10W 0603

0
RMCF0805FT1K87

RMCF0805FT1K87

Stackpole Electronics, Inc.

RES 1.87K OHM 1% 1/8W 0805

7498
RNCF0603BTE36K5

RNCF0603BTE36K5

Stackpole Electronics, Inc.

RES 36.5K OHM 0.1% 1/10W 0603

0
RNCF0805DTE1K62

RNCF0805DTE1K62

Stackpole Electronics, Inc.

RES 1.62K OHM 0.5% 1/8W 0805

0
CSRF0805FT30L0

CSRF0805FT30L0

Stackpole Electronics, Inc.

RES 0.03 OHM 1% 1/2W 0805

0
RNCF0603DKE475R

RNCF0603DKE475R

Stackpole Electronics, Inc.

RES 475 OHM 0.5% 1/10W 0603

0
RNCF0805DKE28K0

RNCF0805DKE28K0

Stackpole Electronics, Inc.

RES 28K OHM 0.5% 1/8W 0805

0
RMCF1206FT1M54

RMCF1206FT1M54

Stackpole Electronics, Inc.

RES 1.54M OHM 1% 1/4W 1206

0
RNCF0603DTE5K10

RNCF0603DTE5K10

Stackpole Electronics, Inc.

RES 5.1K OHM 0.5% 1/10W 0603

0
RNCF0603BKE3K48

RNCF0603BKE3K48

Stackpole Electronics, Inc.

RES 3.48K OHM 0.1% 1/10W 0603

0
RNCF0201DTC274R

RNCF0201DTC274R

Stackpole Electronics, Inc.

RES 274 OHM 0.5% 1/32W 0201

0
RMCF0402FT1M91

RMCF0402FT1M91

Stackpole Electronics, Inc.

RES 1.91M OHM 1% 1/16W 0402

18398
RPC2512KT15R0

RPC2512KT15R0

Stackpole Electronics, Inc.

RES 15 OHM 10% 1.5W 2512

0
RMCF0805FT4M53

RMCF0805FT4M53

Stackpole Electronics, Inc.

RES 4.53M OHM 1% 1/8W 0805

9580
RNCF0603BTC23K7

RNCF0603BTC23K7

Stackpole Electronics, Inc.

RES 23.7K OHM 0.1% 1/10W 0603

0
RMCF1206FT1K96

RMCF1206FT1K96

Stackpole Electronics, Inc.

RES 1.96K OHM 1% 1/4W 1206

0
RMCP2010FT330K

RMCP2010FT330K

Stackpole Electronics, Inc.

RES 330K OHM 1% 1W 2010

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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