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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF0603TKY250R

RNCF0603TKY250R

Stackpole Electronics, Inc.

RES 250 OHM 0.01% 1/10W 0603

3220
RNCF0805BKT7K50

RNCF0805BKT7K50

Stackpole Electronics, Inc.

RES 7.5K OHM 0.1% 1/8W 0805

0
RNCF1206DKE4K75

RNCF1206DKE4K75

Stackpole Electronics, Inc.

RES 4.75K OHM 0.5% 1/3W 1206

0
RMCF1210JT1K00

RMCF1210JT1K00

Stackpole Electronics, Inc.

RES 1K OHM 5% 1/2W 1210

2893
RNCF0201DTC3K57

RNCF0201DTC3K57

Stackpole Electronics, Inc.

RES 3.57K OHM 0.5% 1/32W 0201

0
RMCF1206JT24K0

RMCF1206JT24K0

Stackpole Electronics, Inc.

RES 24K OHM 5% 1/4W 1206

2147483647
RMCF2512JT1R10

RMCF2512JT1R10

Stackpole Electronics, Inc.

RES 1.1 OHM 5% 1W 2512

0
RNCF0603DKE80R6

RNCF0603DKE80R6

Stackpole Electronics, Inc.

RES 80.6 OHM 0.5% 1/10W 0603

0
RNCF0603TTT1K62

RNCF0603TTT1K62

Stackpole Electronics, Inc.

RES 1.62K OHM 0.01% 1/10W 0603

0
RMCF2512FT255R

RMCF2512FT255R

Stackpole Electronics, Inc.

RES 255 OHM 1% 1W 2512

0
RMCF0201FT6R81

RMCF0201FT6R81

Stackpole Electronics, Inc.

RES 6.81 OHM 1% 1/20W 0201

0
RNCF0402DTE324R

RNCF0402DTE324R

Stackpole Electronics, Inc.

RES 324 OHM 0.5% 1/16W 0402

0
RNCF0603TKW4K99

RNCF0603TKW4K99

Stackpole Electronics, Inc.

RES 4.99K OHM, 0.01%, 2 PPM, 0.1

1791
RNCF0402BKE137R

RNCF0402BKE137R

Stackpole Electronics, Inc.

RES 137 OHM 0.1% 1/16W 0402

0
RMCS1206FT11R5

RMCS1206FT11R5

Stackpole Electronics, Inc.

RES 11.5 OHM 1% 1/4W 1206

0
RNCF0603DTE105R

RNCF0603DTE105R

Stackpole Electronics, Inc.

RES 105 OHM 0.5% 1/10W 0603

0
RNCF0402BKE40R2

RNCF0402BKE40R2

Stackpole Electronics, Inc.

RES 40.2 OHM 0.1% 1/16W 0402

0
RNCF1206DKE422R

RNCF1206DKE422R

Stackpole Electronics, Inc.

RES 422 OHM 0.5% 1/3W 1206

0
RNCS0805BTE15K4

RNCS0805BTE15K4

Stackpole Electronics, Inc.

RES 15.4K OHM 0.1% 1/10W 0805

0
RMCF1206JTR680

RMCF1206JTR680

Stackpole Electronics, Inc.

RES 0.68 OHM 5% 1/4W 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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