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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
ESR18EZPF3603

ESR18EZPF3603

ROHM Semiconductor

RES SMD 360K OHM 1% 1/2W 1206

0
ESR10EZPF1653

ESR10EZPF1653

ROHM Semiconductor

RES SMD 165K OHM 1% 0.4W 0805

0
LTR18EZPF2701

LTR18EZPF2701

ROHM Semiconductor

RES SMD 2.7K OHM 3/4W 1206 WIDE

9113
ESR10EZPF1303

ESR10EZPF1303

ROHM Semiconductor

RES SMD 130K OHM 1% 0.4W 0805

212
ESR10EZPJ131

ESR10EZPJ131

ROHM Semiconductor

RES SMD 130 OHM 5% 0.4W 0805

16912
MCR10ERTF13R3

MCR10ERTF13R3

ROHM Semiconductor

RES SMD 13.3 OHM 1% 1/8W 0805

3385
MCR006YRTJ121

MCR006YRTJ121

ROHM Semiconductor

RES SMD 120 OHM 5% 1/20W 0201

7678
ESR18EZPF1800

ESR18EZPF1800

ROHM Semiconductor

RES SMD 180 OHM 1% 1/2W 1206

0
MCR10ERTF1621

MCR10ERTF1621

ROHM Semiconductor

RES SMD 1.62K OHM 1% 1/8W 0805

23841
MCR18ERTF1331

MCR18ERTF1331

ROHM Semiconductor

RES SMD 1.33K OHM 1% 1/4W 1206

1926
KTR18EZPF3243

KTR18EZPF3243

ROHM Semiconductor

RES SMD 324K OHM 1% 1/4W 1206

0
KTR10EZPF3161

KTR10EZPF3161

ROHM Semiconductor

RES SMD 3.16K OHM 1% 1/8W 0805

2623
ESR03EZPF2402

ESR03EZPF2402

ROHM Semiconductor

RES SMD 24K OHM 1% 1/4W 0603

0
UCR01MVPFLR150

UCR01MVPFLR150

ROHM Semiconductor

RES 0.15 OHM 1% 1/8W 0402

16404
MCR03ERTJ115

MCR03ERTJ115

ROHM Semiconductor

RES SMD 1.1M OHM 5% 1/10W 0603

739
MCR100JZHJ182

MCR100JZHJ182

ROHM Semiconductor

RES SMD 1.8K OHM 5% 1W 2512

815
KTR25JZPJ621

KTR25JZPJ621

ROHM Semiconductor

RES SMD 620 OHM 5% 1/3W 1210

0
KTR18EZPF1272

KTR18EZPF1272

ROHM Semiconductor

RES SMD 12.7K OHM 1% 1/4W 1206

9379
KTR18EZPF4221

KTR18EZPF4221

ROHM Semiconductor

RES SMD 4.22K OHM 1% 1/4W 1206

0
KTR03EZPJ915

KTR03EZPJ915

ROHM Semiconductor

RES SMD 9.1M OHM 5% 1/10W 0603

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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