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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
ESR03EZPJ200

ESR03EZPJ200

ROHM Semiconductor

RES SMD 20 OHM 5% 1/4W 0603

3531
LTR18EZPF6802

LTR18EZPF6802

ROHM Semiconductor

RES SMD 68K OHM 3/4W 1206 WIDE

6500
ESR25JZPF1R00

ESR25JZPF1R00

ROHM Semiconductor

RES SMD 1 OHM 1% 2/3W 1210

2096
ESR10EZPF1272

ESR10EZPF1272

ROHM Semiconductor

RES SMD 12.7K OHM 1% 0.4W 0805

0
TRR01MZPJ822

TRR01MZPJ822

ROHM Semiconductor

RES SMD 8.2K OHM 5% 1/16W 0402

0
MCR10ERTF1873

MCR10ERTF1873

ROHM Semiconductor

RES SMD 187K OHM 1% 1/8W 0805

8950
UCR03EWPFSR036

UCR03EWPFSR036

ROHM Semiconductor

RES 0.036 OHM 1% 1/4W 0603

4080
MCR18ERTF5362

MCR18ERTF5362

ROHM Semiconductor

RES SMD 53.6K OHM 1% 1/4W 1206

1615
KTR03EZPF2000

KTR03EZPF2000

ROHM Semiconductor

RES SMD 200 OHM 1% 1/10W 0603

10388
KTR10EZPF1650

KTR10EZPF1650

ROHM Semiconductor

RES SMD 165 OHM 1% 1/8W 0805

4378
KTR18EZPF36R0

KTR18EZPF36R0

ROHM Semiconductor

RES SMD 36 OHM 1% 1/4W 1206

9332
MCR10ERTF5363

MCR10ERTF5363

ROHM Semiconductor

RES SMD 536K OHM 1% 1/8W 0805

7978
ESR18EZPF2150

ESR18EZPF2150

ROHM Semiconductor

RES SMD 215 OHM 1% 1/2W 1206

0
KTR03EZPJ6R2

KTR03EZPJ6R2

ROHM Semiconductor

RES SMD 6.2 OHM 5% 1/10W 0603

0
ESR10EZPJ391

ESR10EZPJ391

ROHM Semiconductor

RES SMD 390 OHM 5% 0.4W 0805

22709
ESR18EZPF7872

ESR18EZPF7872

ROHM Semiconductor

RES SMD 78.7K OHM 1% 1/2W 1206

0
TRR01MZPJ682

TRR01MZPJ682

ROHM Semiconductor

RES SMD 6.8K OHM 5% 1/16W 0402

0
KTR25JZPJ750

KTR25JZPJ750

ROHM Semiconductor

RES SMD 75 OHM 5% 1/3W 1210

0
MCR10ERTF8661

MCR10ERTF8661

ROHM Semiconductor

RES SMD 8.66K OHM 1% 1/8W 0805

85
ESR18EZPF51R1

ESR18EZPF51R1

ROHM Semiconductor

RES SMD 51.1 OHM 1% 1/2W 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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