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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF1206BTC150K

RNCF1206BTC150K

Stackpole Electronics, Inc.

RES 150K OHM 0.1% 1/3W 1206

0
RGC0402DTC237K

RGC0402DTC237K

Stackpole Electronics, Inc.

RES 237K OHM 0.5% 1/16W 0402

0
SM4124FT412R

SM4124FT412R

Stackpole Electronics, Inc.

RES 412 OHM 1% 2W 4124

0
RNCF0402BKE90R9

RNCF0402BKE90R9

Stackpole Electronics, Inc.

RES 90.9 OHM 0.1% 1/16W 0402

0
RNCF0402BKE91R0

RNCF0402BKE91R0

Stackpole Electronics, Inc.

RES 91 OHM 0.1% 1/16W 0402

0
CSR0603FKR470

CSR0603FKR470

Stackpole Electronics, Inc.

RES 0.47 OHM 1% 1/8W 0603

0
RMCF1210FT84K5

RMCF1210FT84K5

Stackpole Electronics, Inc.

RES 84.5K OHM 1% 1/3W 1210

0
RNCF0603DTE22R6

RNCF0603DTE22R6

Stackpole Electronics, Inc.

RES 22.6 OHM 0.5% 1/10W 0603

0
RMCF0402JT56R0

RMCF0402JT56R0

Stackpole Electronics, Inc.

RES 56 OHM 5% 1/16W 0402

8198
RGC0603DTC7K50

RGC0603DTC7K50

Stackpole Electronics, Inc.

RES 7.5K OHM 0.5% 1/10W 0603

0
RNCF1206DKE66K5

RNCF1206DKE66K5

Stackpole Electronics, Inc.

RES 66.5K OHM 0.5% 1/3W 1206

0
RMCF1206FT107R

RMCF1206FT107R

Stackpole Electronics, Inc.

RES 107 OHM 1% 1/4W 1206

0
RPC0805JT20R0-UP

RPC0805JT20R0-UP

Stackpole Electronics, Inc.

RES, PULSE, 0805, 5%, 20 OHM, 0.

0
RMCF1206FT88K7

RMCF1206FT88K7

Stackpole Electronics, Inc.

RES 88.7K OHM 1% 1/4W 1206

438020000
RMCF2010FT48K7

RMCF2010FT48K7

Stackpole Electronics, Inc.

RES 48.7K OHM 1% 3/4W 2010

0
RMCF0402FT324K

RMCF0402FT324K

Stackpole Electronics, Inc.

RES 324K OHM 1% 1/16W 0402

25911
RMCP2010FT205K

RMCP2010FT205K

Stackpole Electronics, Inc.

RES 205K OHM 1% 1W 2010

0
RNCF1206BTE464K

RNCF1206BTE464K

Stackpole Electronics, Inc.

RES 464K OHM 0.1% 1/3W 1206

0
RNCF1206FTC24K3

RNCF1206FTC24K3

Stackpole Electronics, Inc.

RES 24.3K OHM 1% 1/3W 1206

0
RNCF0402BKE180R

RNCF0402BKE180R

Stackpole Electronics, Inc.

RES 180 OHM 0.1% 1/16W 0402

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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