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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF0805FTD1K20

RNCF0805FTD1K20

Stackpole Electronics, Inc.

RES 1.2K OHM 1% 1/8W 0805

0
RNCF0603BTC487R

RNCF0603BTC487R

Stackpole Electronics, Inc.

RES 487 OHM 0.1% 1/10W 0603

0
RNCF0805FTD95R3

RNCF0805FTD95R3

Stackpole Electronics, Inc.

RES 95.3 OHM 1% 1/8W 0805

0
RNCF1206BKE953R

RNCF1206BKE953R

Stackpole Electronics, Inc.

RES 953 OHM 0.1% 1/3W 1206

0
RNCF0603DKE1K20

RNCF0603DKE1K20

Stackpole Electronics, Inc.

RES 1.2K OHM 0.5% 1/10W 0603

0
RHC2512FT3R16

RHC2512FT3R16

Stackpole Electronics, Inc.

RES 3.16 OHM 1% 2W 2512

0
RNCF1206TTT475K

RNCF1206TTT475K

Stackpole Electronics, Inc.

RES 475K OHM 0.01% 1/4W 1206

0
RMCF2010JTR620

RMCF2010JTR620

Stackpole Electronics, Inc.

RES 0.62 OHM 5% 3/4W 2010

0
RMCP2010FT1M78

RMCP2010FT1M78

Stackpole Electronics, Inc.

RES 1.78M OHM 1% 1W 2010

0
RMCP2010FT3M01

RMCP2010FT3M01

Stackpole Electronics, Inc.

RES 3.01M OHM 1% 1W 2010

0
RNCF0402DKE3K00

RNCF0402DKE3K00

Stackpole Electronics, Inc.

RES 3K OHM 0.5% 1/16W 0402

0
RNCF0805DKE1K05

RNCF0805DKE1K05

Stackpole Electronics, Inc.

RES 1.05K OHM 0.5% 1/8W 0805

0
RNCF0402BTE732R

RNCF0402BTE732R

Stackpole Electronics, Inc.

RES 732 OHM 0.1% 1/16W 0402

0
RMCF0805FT4R75

RMCF0805FT4R75

Stackpole Electronics, Inc.

RES 4.75 OHM 1% 1/8W 0805

4605
RNCF1206DTC5K10

RNCF1206DTC5K10

Stackpole Electronics, Inc.

RES 5.1K OHM 0.5% 1/3W 1206

0
RNCF0402DTC25R5

RNCF0402DTC25R5

Stackpole Electronics, Inc.

RES 25.5 OHM 0.5% 1/16W 0402

0
RMCF0402FT7R68

RMCF0402FT7R68

Stackpole Electronics, Inc.

RES 7.68 OHM 1% 1/16W 0402

8639
RNCF0805DKE2K94

RNCF0805DKE2K94

Stackpole Electronics, Inc.

RES 2.94K OHM 0.5% 1/8W 0805

0
SM4124FTR140

SM4124FTR140

Stackpole Electronics, Inc.

RES 0.14 OHM 1% 2W 4124

0
RNCF0603DTC49R9

RNCF0603DTC49R9

Stackpole Electronics, Inc.

RES 49.9 OHM 0.5% 1/10W 0603

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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