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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF1206BTE43K2

RNCF1206BTE43K2

Stackpole Electronics, Inc.

RES 43.2K OHM 0.1% 1/3W 1206

0
RNCF0603DKC150R

RNCF0603DKC150R

Stackpole Electronics, Inc.

RES 150 OHM 0.5% 1/10W 0603

0
RNCF0603DTC71K5

RNCF0603DTC71K5

Stackpole Electronics, Inc.

RES 71.5K OHM 0.5% 1/10W 0603

0
RNCF0402BTE9K76

RNCF0402BTE9K76

Stackpole Electronics, Inc.

RES 9.76K OHM 0.1% 1/16W 0402

0
RNCS1206BKE30K1

RNCS1206BKE30K1

Stackpole Electronics, Inc.

RES 30.1K OHM 0.1% 1/8W 1206

0
RNCF0805DKE6R49

RNCF0805DKE6R49

Stackpole Electronics, Inc.

RES 6.49 OHM 0.5% 1/8W 0805

0
CSR0603JT68L0

CSR0603JT68L0

Stackpole Electronics, Inc.

RES 0.068 OHM 5% 1/8W 0603

0
RNCF0603BTE4R99

RNCF0603BTE4R99

Stackpole Electronics, Inc.

RES 4.99 OHM 0.1% 1/10W 0603

0
RNCF0603DTC118R

RNCF0603DTC118R

Stackpole Electronics, Inc.

RES 118 OHM 0.5% 1/10W 0603

0
RNCF0603BKE6R20

RNCF0603BKE6R20

Stackpole Electronics, Inc.

RES 6.2 OHM 0.1% 1/10W 0603

0
RMCS1206FT30R1

RMCS1206FT30R1

Stackpole Electronics, Inc.

RES 30.1 OHM 1% 1/4W 1206

0
SM2615FT23R7

SM2615FT23R7

Stackpole Electronics, Inc.

RES 23.7 OHM 1% 1W 2615

0
RMCF2512FT274R

RMCF2512FT274R

Stackpole Electronics, Inc.

RES 274 OHM 1% 1W 2512

7970
RNCF0402BTE78K7

RNCF0402BTE78K7

Stackpole Electronics, Inc.

RES 78.7K OHM 0.1% 1/16W 0402

0
RNCF0603BTT3K01

RNCF0603BTT3K01

Stackpole Electronics, Inc.

RES 3.01K OHM 0.1% 1/10W 0603

0
RNCF0201DTE52R3

RNCF0201DTE52R3

Stackpole Electronics, Inc.

RES 52.3 OHM 0.5% 1/32W 0201

0
RMCF1206FT1R58

RMCF1206FT1R58

Stackpole Electronics, Inc.

RES 1.58 OHM 1% 1/4W 1206

0
RNCF0402DTE147R

RNCF0402DTE147R

Stackpole Electronics, Inc.

RES 147 OHM 0.5% 1/16W 0402

0
CSR1206FTR249

CSR1206FTR249

Stackpole Electronics, Inc.

RES 0.249 OHM 1% 1/2W 1206

0
RMCP2010FT4R75

RMCP2010FT4R75

Stackpole Electronics, Inc.

RES 4.75 OHM 1% 1W 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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