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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RHC2512FT5R90

RHC2512FT5R90

Stackpole Electronics, Inc.

RES 5.9 OHM 1% 2W 2512

0
RNCS0805BTE61R9

RNCS0805BTE61R9

Stackpole Electronics, Inc.

RES 61.9 OHM 0.1% 1/10W 0805

0
RNCF0603BTE28R0

RNCF0603BTE28R0

Stackpole Electronics, Inc.

RES 28 OHM 0.1% 1/10W 0603

0
RMCP2010FT5R10

RMCP2010FT5R10

Stackpole Electronics, Inc.

RES 5.1 OHM 1% 1W 2010

0
RNCF0603FTE200R

RNCF0603FTE200R

Stackpole Electronics, Inc.

RES 200 OHM 1% 1/10W 0603

0
RMCF0402FT316R

RMCF0402FT316R

Stackpole Electronics, Inc.

RES 316 OHM 1% 1/16W 0402

7390
CSRN2512FTR162

CSRN2512FTR162

Stackpole Electronics, Inc.

RES 0.162 OHM 1% 2W 2512

0
RNCF0402BKE360R

RNCF0402BKE360R

Stackpole Electronics, Inc.

RES 360 OHM 0.1% 1/16W 0402

0
RNCF1206DTC825R

RNCF1206DTC825R

Stackpole Electronics, Inc.

RES 825 OHM 0.5% 1/3W 1206

0
RMCF1210JT20R0

RMCF1210JT20R0

Stackpole Electronics, Inc.

RES 20 OHM 5% 1/2W 1210

15670
RNCF0805DKE25R5

RNCF0805DKE25R5

Stackpole Electronics, Inc.

RES 25.5 OHM 0.5% 1/8W 0805

0
RNCF1206DTC470K

RNCF1206DTC470K

Stackpole Electronics, Inc.

RES 470K OHM 0.5% 1/3W 1206

0
RNCF0603DTC88K7

RNCF0603DTC88K7

Stackpole Electronics, Inc.

RES 88.7K OHM 0.5% 1/10W 0603

0
RMCF1206FT35K7

RMCF1206FT35K7

Stackpole Electronics, Inc.

RES 35.7K OHM 1% 1/4W 1206

0
RPC2512JT47R0

RPC2512JT47R0

Stackpole Electronics, Inc.

RES 47 OHM 5% 1.5W 2512

54079
RNCS0805BTC44K2

RNCS0805BTC44K2

Stackpole Electronics, Inc.

RES 44.2K OHM 0.1% 1/10W 0805

0
RMCF0402FT118R

RMCF0402FT118R

Stackpole Electronics, Inc.

RES 118 OHM 1% 1/16W 0402

20000
CSRN2512JKR680

CSRN2512JKR680

Stackpole Electronics, Inc.

RES 0.68 OHM 5% 2W 2512

0
RNCF0805FTE30K1

RNCF0805FTE30K1

Stackpole Electronics, Inc.

RES 30.1K OHM 1% 1/8W 0805

0
RMCF0603FT78K7

RMCF0603FT78K7

Stackpole Electronics, Inc.

RES 78.7K OHM 1% 1/10W 0603

12210

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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