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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RMCF1206JT240R

RMCF1206JT240R

Stackpole Electronics, Inc.

RES 240 OHM 5% 1/4W 1206

43078
RNCF1206BKE1K78

RNCF1206BKE1K78

Stackpole Electronics, Inc.

RES 1.78K OHM 0.1% 1/3W 1206

0
RMCF0805FT49K9

RMCF0805FT49K9

Stackpole Electronics, Inc.

RES 49.9K OHM 1% 1/8W 0805

47
RNCF0402BTE18K0

RNCF0402BTE18K0

Stackpole Electronics, Inc.

RES 18K OHM 0.1% 1/16W 0402

0
CSR0603FTR600

CSR0603FTR600

Stackpole Electronics, Inc.

RES 0.6 OHM 1% 1/8W 0603

0
RNCF1206DTE1R33

RNCF1206DTE1R33

Stackpole Electronics, Inc.

RES 1.33 OHM 0.5% 1/4W 1206

0
RNCF0201DTC887R

RNCF0201DTC887R

Stackpole Electronics, Inc.

RES 887 OHM 0.5% 1/32W 0201

0
RNCF0603DTE330K

RNCF0603DTE330K

Stackpole Electronics, Inc.

RES 330K OHM 0.5% 1/10W 0603

0
RMCP2010FT3K90

RMCP2010FT3K90

Stackpole Electronics, Inc.

RES 3.9K OHM 1% 1W 2010

0
RMCF2010FT11K0

RMCF2010FT11K0

Stackpole Electronics, Inc.

RES 11K OHM 1% 3/4W 2010

0
RMCF1206FT1R65

RMCF1206FT1R65

Stackpole Electronics, Inc.

RES 1.65 OHM 1% 1/4W 1206

0
RNCF1206DTE52K3

RNCF1206DTE52K3

Stackpole Electronics, Inc.

RES 52.3K OHM 0.5% 1/3W 1206

0
RMCF1210FT16R5

RMCF1210FT16R5

Stackpole Electronics, Inc.

RES 16.5 OHM 1% 1/2W 1210

0
RNCF0805BTE82R0

RNCF0805BTE82R0

Stackpole Electronics, Inc.

RES 82 OHM 0.1% 1/8W 0805

0
RNCF0603DKC5R76

RNCF0603DKC5R76

Stackpole Electronics, Inc.

RES 5.76 OHM 0.5% 1/10W 0603

0
RNCF1206DTC66K5

RNCF1206DTC66K5

Stackpole Electronics, Inc.

RES 66.5K OHM 0.5% 1/3W 1206

0
RMCF0805FT29K4

RMCF0805FT29K4

Stackpole Electronics, Inc.

RES 29.4K OHM 1% 1/8W 0805

376
RNCF0805DKE2K10

RNCF0805DKE2K10

Stackpole Electronics, Inc.

RES 2.1K OHM 0.5% 1/8W 0805

0
RMCP2010JT1R60

RMCP2010JT1R60

Stackpole Electronics, Inc.

RES 1.6 OHM 5% 1W 2010

0
RNCF1206DKE768K

RNCF1206DKE768K

Stackpole Electronics, Inc.

RES 768K OHM 0.5% 1/3W 1206

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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