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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
ESR25JZPF7R50

ESR25JZPF7R50

ROHM Semiconductor

RES SMD 7.5 OHM 1% 2/3W 1210

0
LTR10EVHFSR056

LTR10EVHFSR056

ROHM Semiconductor

RES 0.056 OHM 1/2W 0805 WIDE

0
MCR50JZHF3571

MCR50JZHF3571

ROHM Semiconductor

RES SMD 3.57K OHM 1% 1/2W 2010

5466
PMR50HZPFU8L00

PMR50HZPFU8L00

ROHM Semiconductor

RES 0.008 OHM 1% 1W 2010

20233
ESR03EZPJ122

ESR03EZPJ122

ROHM Semiconductor

RES SMD 1.2K OHM 5% 1/4W 0603

3653
ESR10EZPF8252

ESR10EZPF8252

ROHM Semiconductor

RES SMD 82.5K OHM 1% 0.4W 0805

0
KTR03EZPF1104

KTR03EZPF1104

ROHM Semiconductor

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

8289
KTR25JZPJ124

KTR25JZPJ124

ROHM Semiconductor

RES SMD 120K OHM 5% 1/3W 1210

0
KTR10EZPJR68

KTR10EZPJR68

ROHM Semiconductor

RES 0.68 OHM 5% 1/8W 0805

0
MCR006YRTF4022

MCR006YRTF4022

ROHM Semiconductor

RES SMD 40.2K OHM 1% 1/20W 0201

143
MCR01MRTF1961

MCR01MRTF1961

ROHM Semiconductor

RES SMD 1.96K OHM 1% 1/16W 0402

9730
ESR10EZPF4750

ESR10EZPF4750

ROHM Semiconductor

RES SMD 475 OHM 1% 0.4W 0805

0
ESR25JZPJ160

ESR25JZPJ160

ROHM Semiconductor

RES SMD 16 OHM 5% 2/3W 1210

0
TRR03EZPF2372

TRR03EZPF2372

ROHM Semiconductor

RES SMD 23.7K OHM 1% 1/10W 0603

0
ESR10EZPJ134

ESR10EZPJ134

ROHM Semiconductor

RES SMD 130K OHM 5% 0.4W 0805

0
ESR18EZPF3400

ESR18EZPF3400

ROHM Semiconductor

RES SMD 340 OHM 1% 1/2W 1206

0
MCR03ERTJ6R2

MCR03ERTJ6R2

ROHM Semiconductor

RES SMD 6.2 OHM 5% 1/10W 0603

1506
KTR10EZPF8203

KTR10EZPF8203

ROHM Semiconductor

RES SMD 820K OHM 1% 1/8W 0805

160
KTR25JZPF3901

KTR25JZPF3901

ROHM Semiconductor

RES SMD 3.9K OHM 1% 1/3W 1210

5144
ESR10EZPF4223

ESR10EZPF4223

ROHM Semiconductor

RES SMD 422K OHM 1% 0.4W 0805

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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