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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
CR015102F

CR015102F

Meritek

RES SMD 51K OHM 1% 1W 2512

0
CR044643F

CR044643F

Meritek

RES SMD 464K OHM 1% 1/2W 1210

0
CR042703F

CR042703F

Meritek

RES SMD 270K OHM 1% 1/2W 1210

0
CR019761F

CR019761F

Meritek

RES SMD 9.76K OHM 1% 1W 2512

24000
CR01151J

CR01151J

Meritek

RES SMD 150 OHM 5% 1W 2512

12000
CR045362F

CR045362F

Meritek

RES SMD 53.6K OHM 1% 1/2W 1210

0
CR048201F

CR048201F

Meritek

RES SMD 8.2K OHM 1% 1/2W 1210

0
CR02330J

CR02330J

Meritek

RES SMD 33 OHM 5% 3/4W 2010

16000
CR011583F

CR011583F

Meritek

RES SMD 158K OHM 1% 1W 2512

0
CR015903F

CR015903F

Meritek

RES SMD 590K OHM 1% 1W 2512

0
CR107324F

CR107324F

Meritek

RES SMD 7.32M OHM 1% 1/8W 0805

10000
CR044704F

CR044704F

Meritek

RES SMD 4.7M OHM 1% 1/2W 1210

0
CR101R80F

CR101R80F

Meritek

RES SMD 1.8 OHM 1% 1/8W 0805

0
CR02103J

CR02103J

Meritek

RES SMD 10K OHM 5% 3/4W 2010

8000
CR013831F

CR013831F

Meritek

RES SMD 3.83K OHM 1% 1W 2512

0
CR044644F

CR044644F

Meritek

RES SMD 4.64M OHM 1% 1/2W 1210

0
CR101005F

CR101005F

Meritek

RES SMD 10M OHM 1% 1/8W 0805

50000
CR019101F

CR019101F

Meritek

RES SMD 9.1K OHM 1% 1W 2512

0
CR0436R5F

CR0436R5F

Meritek

RES SMD 36.5 OHM 1% 1/2W 1210

5000
CR0434R0F

CR0434R0F

Meritek

RES SMD 34 OHM 1% 1/2W 1210

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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