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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF0201DTE249R

RNCF0201DTE249R

Stackpole Electronics, Inc.

RES 249 OHM 0.5% 1/32W 0201

0
RGC1206DTC1K00

RGC1206DTC1K00

Stackpole Electronics, Inc.

RES 1K OHM 0.5% 1/4W 1206

0
RNCF0603BTC182R

RNCF0603BTC182R

Stackpole Electronics, Inc.

RES 182 OHM 0.1% 1/10W 0603

0
RNCF0402BKE9K76

RNCF0402BKE9K76

Stackpole Electronics, Inc.

RES 9.76K OHM 0.1% 1/16W 0402

0
RPC1206JT30K0

RPC1206JT30K0

Stackpole Electronics, Inc.

RES 30K OHM 5% 1/3W 1206

0
RNCF0603DTC324K

RNCF0603DTC324K

Stackpole Electronics, Inc.

RES 324K OHM 0.5% 1/10W 0603

0
CSR1225JKR200

CSR1225JKR200

Stackpole Electronics, Inc.

RES 0.2 OHM 5% 3W 2512 WIDE

0
RGC0805FTC6K98

RGC0805FTC6K98

Stackpole Electronics, Inc.

RES 6.98K OHM 1% 1/8W 0805

0
RNCF1210BTE3K00

RNCF1210BTE3K00

Stackpole Electronics, Inc.

RES 3K OHM 0.1% 1/3W 1210

0
RMCF0402FT750K

RMCF0402FT750K

Stackpole Electronics, Inc.

RES 750K OHM 1% 1/16W 0402

40653
RNCF0603BTC22R1

RNCF0603BTC22R1

Stackpole Electronics, Inc.

RES 22.1 OHM 0.1% 1/10W 0603

0
RMCP2010JT470K

RMCP2010JT470K

Stackpole Electronics, Inc.

RES 470K OHM 5% 1W 2010

0
RMCF2010FT215K

RMCF2010FT215K

Stackpole Electronics, Inc.

RES 215K OHM 1% 3/4W 2010

0
RPC0805JT3R90-UP

RPC0805JT3R90-UP

Stackpole Electronics, Inc.

RES, PULSE, 0805, 5%, 3.9 OHM, 0

0
RMCF2512FT1M00

RMCF2512FT1M00

Stackpole Electronics, Inc.

RES 1M OHM 1% 1W 2512

0
CSR1206FKR360

CSR1206FKR360

Stackpole Electronics, Inc.

RES 0.36 OHM 1% 1/2W 1206

0
RMCF2010FT121K

RMCF2010FT121K

Stackpole Electronics, Inc.

RES 121K OHM 1% 3/4W 2010

0
RMCF0805FT9R09

RMCF0805FT9R09

Stackpole Electronics, Inc.

RES 9.09 OHM 1% 1/8W 0805

6779
RNCF0402DTC66K5

RNCF0402DTC66K5

Stackpole Electronics, Inc.

RES 66.5K OHM 0.5% 1/16W 0402

0
RNCF1206DKE107R

RNCF1206DKE107R

Stackpole Electronics, Inc.

RES 107 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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