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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
CSRF2512FT22L0

CSRF2512FT22L0

Stackpole Electronics, Inc.

RES 0.022 OHM 1% 2W 2512

0
CSR1225JKR180

CSR1225JKR180

Stackpole Electronics, Inc.

RES 0.18 OHM 5% 3W 2512 WIDE

0
RNCF0603DTC274R

RNCF0603DTC274R

Stackpole Electronics, Inc.

RES 274 OHM 0.5% 1/10W 0603

0
RNCF0603BKE976R

RNCF0603BKE976R

Stackpole Electronics, Inc.

RES 976 OHM 0.1% 1/10W 0603

0
RNCF0805BKE866K

RNCF0805BKE866K

Stackpole Electronics, Inc.

RES 866K OHM 0.1% 1/8W 0805

0
RMCF0805FT301R

RMCF0805FT301R

Stackpole Electronics, Inc.

RES 301 OHM 1% 1/8W 0805

21855
RNCF1206DTC649K

RNCF1206DTC649K

Stackpole Electronics, Inc.

RES 649K OHM 0.5% 1/3W 1206

0
RMCF0201FT2K20

RMCF0201FT2K20

Stackpole Electronics, Inc.

RES 2.2K OHM 1% 1/20W 0201

48333
RMCF0603JT5M60

RMCF0603JT5M60

Stackpole Electronics, Inc.

RES 5.6M OHM 5% 1/10W 0603

9075
RNCF0603DTC27R4

RNCF0603DTC27R4

Stackpole Electronics, Inc.

RES 27.4 OHM 0.5% 1/10W 0603

0
RNCF0201DTC715R

RNCF0201DTC715R

Stackpole Electronics, Inc.

RES 715 OHM 0.5% 1/32W 0201

0
RNCF0603BTE12R4

RNCF0603BTE12R4

Stackpole Electronics, Inc.

RES 12.4 OHM 0.1% 1/10W 0603

0
RNCF1206DKE22R6

RNCF1206DKE22R6

Stackpole Electronics, Inc.

RES 22.6 OHM 0.5% 1/3W 1206

0
CSR1225FT5L00

CSR1225FT5L00

Stackpole Electronics, Inc.

RES 0.005 OHM 1% 3W 2512 WIDE

0
RNCF0402BKE348R

RNCF0402BKE348R

Stackpole Electronics, Inc.

RES 348 OHM 0.1% 1/16W 0402

0
RNCF0402BTC33K2

RNCF0402BTC33K2

Stackpole Electronics, Inc.

RES 33.2K OHM 0.1% 1/16W 0402

0
RNCF0402DTE536R

RNCF0402DTE536R

Stackpole Electronics, Inc.

RES 536 OHM 0.5% 1/16W 0402

0
RNCF0402BTE432R

RNCF0402BTE432R

Stackpole Electronics, Inc.

RES 432 OHM 0.1% 1/16W 0402

0
RMCP1206FT5K10

RMCP1206FT5K10

Stackpole Electronics, Inc.

RES 5.1K OHM 1% 1/3W 1206

0
RNCF0805AKT10R0

RNCF0805AKT10R0

Stackpole Electronics, Inc.

RES 10 OHM 0.05% 1/8W 0805

156224000

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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