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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RMCF1210FT178K

RMCF1210FT178K

Stackpole Electronics, Inc.

RES 178K OHM 1% 1/3W 1210

0
RNCF0201DTC105R

RNCF0201DTC105R

Stackpole Electronics, Inc.

RES 105 OHM 0.5% 1/32W 0201

0
SM6227FT25R5

SM6227FT25R5

Stackpole Electronics, Inc.

RES 25.5 OHM 1% 3W 6227

0
RMCF2512FT21K0

RMCF2512FT21K0

Stackpole Electronics, Inc.

RES 21K OHM 1% 1W 2512

0
RNCP0603FTD1K00

RNCP0603FTD1K00

Stackpole Electronics, Inc.

RES 1K OHM 1% 1/8W 0603

2147483647
RMCF0402FT210K

RMCF0402FT210K

Stackpole Electronics, Inc.

RES 210K OHM 1% 1/16W 0402

0
RNCF0402BTC249R

RNCF0402BTC249R

Stackpole Electronics, Inc.

RES 249 OHM 0.1% 1/16W 0402

0
RNCF0805BTC8K06

RNCF0805BTC8K06

Stackpole Electronics, Inc.

RES 8.06K OHM 0.1% 1/8W 0805

0
RNCF0603DTE1K24

RNCF0603DTE1K24

Stackpole Electronics, Inc.

RES 1.24K OHM 0.5% 1/10W 0603

0
RMCF0603FT768R

RMCF0603FT768R

Stackpole Electronics, Inc.

RES 768 OHM 1% 1/10W 0603

5742
RNCF0603BKE1K13

RNCF0603BKE1K13

Stackpole Electronics, Inc.

RES 1.13K OHM 0.1% 1/10W 0603

0
RNCF0402BTE619R

RNCF0402BTE619R

Stackpole Electronics, Inc.

RES 619 OHM 0.1% 1/16W 0402

0
RNCF0805BTC64R9

RNCF0805BTC64R9

Stackpole Electronics, Inc.

RES 64.9 OHM 0.1% 1/8W 0805

0
RNCF0603DKC12R1

RNCF0603DKC12R1

Stackpole Electronics, Inc.

RES 12.1 OHM 0.5% 1/10W 0603

0
RNCF0603DTE16R0

RNCF0603DTE16R0

Stackpole Electronics, Inc.

RES 16 OHM 0.5% 1/10W 0603

0
RNCP1206FTD130R

RNCP1206FTD130R

Stackpole Electronics, Inc.

RES 130 OHM 1% 1/2W 1206

0
RMCF2512FT24R3

RMCF2512FT24R3

Stackpole Electronics, Inc.

RES 24.3 OHM 1% 1W 2512

0
RMCF2512JT7R50

RMCF2512JT7R50

Stackpole Electronics, Inc.

RES 7.5 OHM 5% 1W 2512

0
RMCS1206FT90R9

RMCS1206FT90R9

Stackpole Electronics, Inc.

RES 90.9 OHM 1% 1/4W 1206

0
RNCF0805DKE4K42

RNCF0805DKE4K42

Stackpole Electronics, Inc.

RES 4.42K OHM 0.5% 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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