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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
S2-0R027J8

S2-0R027J8

Riedon

RES 0.027 OHM 5% 1W 2615

0
PFC10-33KF1

PFC10-33KF1

Riedon

RES SMD 33K OHM 1% 25W PFC10

0
S1-15RF1

S1-15RF1

Riedon

RES SMD 15 OHM 1% 1/2W 1913

0
PFC10-330RF1

PFC10-330RF1

Riedon

RES SMD 330 OHM 1% 25W PFC10

0
S3-47R5F8

S3-47R5F8

Riedon

RES SMD 47.5 OHM 1% 3W 6327

0
PCR1206-4K7J1

PCR1206-4K7J1

Riedon

RES SMD 4.7K OHM 5% 1/3W 1206

3928
PFS35-0R04J1

PFS35-0R04J1

Riedon

RES 0.04 OHM 5% 35W TO263 DPAK

0
S1-0R47J8

S1-0R47J8

Riedon

RES 0.47 OHM 5% 1/2W 1913

0
S5-0R47J8

S5-0R47J8

Riedon

RES 0.47 OHM 5% 4W 8230

0
S4-47RJ1

S4-47RJ1

Riedon

RES SMD 47 OHM 5% 2W 4525

0
HVS1206-10GL8

HVS1206-10GL8

Riedon

RES SMD 10G OHM 20% 1/4W 1206

0
PFC10-62RF1

PFC10-62RF1

Riedon

RES SMD 62 OHM 1% 25W PFC10

0
ASC0805-100KF1

ASC0805-100KF1

Riedon

RES 100 KOHM 1% 1/8W 0805

3123
S3-100RJ8

S3-100RJ8

Riedon

RES SMD 100 OHM 5% 3W 6327

0
PFS35-220RF1

PFS35-220RF1

Riedon

RES SMD 220OHM 1% 35W TO263 DPAK

0
S5-22KF1

S5-22KF1

Riedon

RES SMD 22K OHM 1% 4W 8230

0
PFC10-50RF1

PFC10-50RF1

Riedon

RES SMD 50 OHM 1% 25W PFC10

26
S2-0R005J1

S2-0R005J1

Riedon

RES 0.005 OHM 5% 1W 2615

0
S4-20RF1

S4-20RF1

Riedon

RES SMD 20 OHM 1% 2W 4525

0
PCR1206-100RJ1

PCR1206-100RJ1

Riedon

RES SMD 100 OHM 5% 1/3W 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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