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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
SM4124JT100R

SM4124JT100R

Stackpole Electronics, Inc.

RES 100 OHM 5% 2W 4124

0
RMCF1206FT3K90

RMCF1206FT3K90

Stackpole Electronics, Inc.

RES 3.9K OHM 1% 1/4W 1206

5000
RNCF1206DTC453R

RNCF1206DTC453R

Stackpole Electronics, Inc.

RES 453 OHM 0.5% 1/3W 1206

0
RMCF2010FT3R30

RMCF2010FT3R30

Stackpole Electronics, Inc.

RES 3.3 OHM 1% 3/4W 2010

0
RMCF1210FT931R

RMCF1210FT931R

Stackpole Electronics, Inc.

RES 931 OHM 1% 1/2W 1210

0
RNCF1206BTT4R70

RNCF1206BTT4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 0.1% 1/4W 1206

0
RNCF1206ATT187K

RNCF1206ATT187K

Stackpole Electronics, Inc.

RES 187K OHM 0.01% 1/4W 1206

0
SM2615JTR470

SM2615JTR470

Stackpole Electronics, Inc.

RES 0.47 OHM 5% 1W 2615

0
RNCF0603BTC20R0

RNCF0603BTC20R0

Stackpole Electronics, Inc.

RES 20 OHM 0.1% 1/10W 0603

0
RMCP2010JT2R00

RMCP2010JT2R00

Stackpole Electronics, Inc.

RES 2 OHM 5% 1W 2010

0
RNCF0805DKE102R

RNCF0805DKE102R

Stackpole Electronics, Inc.

RES 102 OHM 0.5% 1/8W 0805

0
RPC0805JT2R70

RPC0805JT2R70

Stackpole Electronics, Inc.

RES 2.7 OHM 5% 1/4W 0805

0
CSNL2512FT2L00

CSNL2512FT2L00

Stackpole Electronics, Inc.

RES 0.002 OHM 1% 2W 2512

39232
RNCF0805TKY24R9

RNCF0805TKY24R9

Stackpole Electronics, Inc.

RES 24.9 OHM 0.01% 1/8W 0805

33041000
RMCF0805JTR560

RMCF0805JTR560

Stackpole Electronics, Inc.

RES 0.56 OHM 5% 1/8W 0805

0
RMCF1206FT1K65

RMCF1206FT1K65

Stackpole Electronics, Inc.

RES 1.65K OHM 1% 1/4W 1206

10000
RNCF0603DTE154R

RNCF0603DTE154R

Stackpole Electronics, Inc.

RES 154 OHM 0.5% 1/10W 0603

0
RNCF0603BKE332R

RNCF0603BKE332R

Stackpole Electronics, Inc.

RES 332 OHM 0.1% 1/10W 0603

0
RNCF0402DTE604R

RNCF0402DTE604R

Stackpole Electronics, Inc.

RES 604 OHM 0.5% 1/16W 0402

0
RMCF2010FT62R0

RMCF2010FT62R0

Stackpole Electronics, Inc.

RES 62 OHM 1% 3/4W 2010

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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