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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
CR016R80F

CR016R80F

Meritek

RES SMD 6.8 OHM 1% 1W 2512

0
CR0186R6F

CR0186R6F

Meritek

RES SMD 86.6 OHM 1% 1W 2512

0
CR042434F

CR042434F

Meritek

RES SMD 2.43M OHM 1% 1/2W 1210

0
CR044421F

CR044421F

Meritek

RES SMD 4.42K OHM 1% 1/2W 1210

0
CR026494F

CR026494F

Meritek

RES SMD 6.49M OHM 1% 3/4W 2010

0
CR0129R4F

CR0129R4F

Meritek

RES SMD 29.4 OHM 1% 1W 2512

0
CR044140F

CR044140F

Meritek

RES SMD 414 OHM 1% 1/2W 1210

0
CR019534F

CR019534F

Meritek

RES SMD 9.53M OHM 1% 1W 2512

0
CR02112J

CR02112J

Meritek

RES SMD 1.1K OHM 5% 3/4W 2010

0
CR011R15F

CR011R15F

Meritek

RES SMD 1.15 OHM 1% 1W 2512

0
CR042R15F

CR042R15F

Meritek

RES SMD 2.15 OHM 1% 1/2W 1210

0
CR024R70F

CR024R70F

Meritek

RES SMD 4.7 OHM 1% 3/4W 2010

0
CR01753J

CR01753J

Meritek

RES SMD 75K OHM 5% 1W 2512

4000
CR04333J

CR04333J

Meritek

RES SMD 33K OHM 5% 1/2W 1210

0
CR101205F

CR101205F

Meritek

RES SMD 12M OHM 1% 1/8W 0805

0
CR011151F

CR011151F

Meritek

RES SMD 1.15K OHM 1% 1W 2512

0
CR042433F

CR042433F

Meritek

RES SMD 243K OHM 1% 1/2W 1210

0
CR043403F

CR043403F

Meritek

RES SMD 340K OHM 1% 1/2W 1210

0
CR017320F

CR017320F

Meritek

RES SMD 732 OHM 1% 1W 2512

0
CR016902F

CR016902F

Meritek

RES SMD 69K OHM 1% 1W 2512

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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