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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF0603DKE649K

RNCF0603DKE649K

Stackpole Electronics, Inc.

RES 649K OHM 0.5% 1/10W 0603

0
RNCS0603BKE43K2

RNCS0603BKE43K2

Stackpole Electronics, Inc.

RES 43.2K OHM 0.1% 1/16W 0603

0
RNCF0805BKE232K

RNCF0805BKE232K

Stackpole Electronics, Inc.

RES 232K OHM 0.1% 1/8W 0805

0
RNCF0805BKT127R

RNCF0805BKT127R

Stackpole Electronics, Inc.

RES 127 OHM 0.1% 1/8W 0805

0
RNCF0603DKE27R4

RNCF0603DKE27R4

Stackpole Electronics, Inc.

RES 27.4 OHM 0.5% 1/10W 0603

0
RMCF0201FT4R02

RMCF0201FT4R02

Stackpole Electronics, Inc.

RES 4.02 OHM 1% 1/20W 0201

0
SM6227JT1R30

SM6227JT1R30

Stackpole Electronics, Inc.

RES 1.3 OHM 5% 3W 6227

0
RMCF0402FT28K7

RMCF0402FT28K7

Stackpole Electronics, Inc.

RES 28.7K OHM 1% 1/16W 0402

207
CSR1206FK62L0

CSR1206FK62L0

Stackpole Electronics, Inc.

RES 0.062 OHM 1% 1/2W 1206

0
RNCF0402DTE95R3

RNCF0402DTE95R3

Stackpole Electronics, Inc.

RES 95.3 OHM 0.5% 1/16W 0402

0
RMCF0603FT324R

RMCF0603FT324R

Stackpole Electronics, Inc.

RES 324 OHM 1% 1/10W 0603

14247
RNCF1206BTE19R6

RNCF1206BTE19R6

Stackpole Electronics, Inc.

RES 19.6 OHM 0.1% 1/3W 1206

0
RNCF0402DTE86R6

RNCF0402DTE86R6

Stackpole Electronics, Inc.

RES 86.6 OHM 0.5% 1/16W 0402

0
RNCF0402BKE5K10

RNCF0402BKE5K10

Stackpole Electronics, Inc.

RES 5.1K OHM 0.1% 1/16W 0402

0
SM6227FTR806

SM6227FTR806

Stackpole Electronics, Inc.

RES 0.806 OHM 1% 3W 6227

0
RNCS1206BKE156K

RNCS1206BKE156K

Stackpole Electronics, Inc.

RES 156K OHM 0.1% 1/8W 1206

0
RNCF0603DKE383R

RNCF0603DKE383R

Stackpole Electronics, Inc.

RES 383 OHM 0.5% 1/10W 0603

0
SM4124FB2R37

SM4124FB2R37

Stackpole Electronics, Inc.

RES 2.37 OHM 1% 2W 4124

0
RNCF0805TKT22K1

RNCF0805TKT22K1

Stackpole Electronics, Inc.

RES 22.1K OHM 0.01% 1/8W 0805

0
RNCF0805BKE294K

RNCF0805BKE294K

Stackpole Electronics, Inc.

RES 294K OHM 0.1% 1/8W 0805

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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