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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
ESR03EZPF1204

ESR03EZPF1204

ROHM Semiconductor

RES SMD 1.2M OHM 1% 1/4W 0603

0
KTR10EZPF1433

KTR10EZPF1433

ROHM Semiconductor

RES SMD 143K OHM 1% 1/8W 0805

0
KTR18EZPF1433

KTR18EZPF1433

ROHM Semiconductor

RES SMD 143K OHM 1% 1/4W 1206

0
TRR03EZPF20R0

TRR03EZPF20R0

ROHM Semiconductor

RES SMD 20 OHM 1% 1/10W 0603

15000
ESR10EZPF5623

ESR10EZPF5623

ROHM Semiconductor

RES SMD 562K OHM 1% 0.4W 0805

0
ESR10EZPF2213

ESR10EZPF2213

ROHM Semiconductor

RES SMD 221K OHM 1% 0.4W 0805

0
MCR100JZHF3320

MCR100JZHF3320

ROHM Semiconductor

RES SMD 332 OHM 1% 1W 2512

2886
PMR10EZPFV3L00

PMR10EZPFV3L00

ROHM Semiconductor

RES 0.003 OHM 1% 1/2W 0805

18558
MCR18ERTF3600

MCR18ERTF3600

ROHM Semiconductor

RES SMD 360 OHM 1% 1/4W 1206

2942
ESR10EZPJ514

ESR10EZPJ514

ROHM Semiconductor

RES SMD 510K OHM 5% 0.4W 0805

4789
KTR10EZPJ8R2

KTR10EZPJ8R2

ROHM Semiconductor

RES SMD 8.2 OHM 5% 1/8W 0805

0
ESR10EZPF3920

ESR10EZPF3920

ROHM Semiconductor

RES SMD 392 OHM 1% 0.4W 0805

0
MCR01MRTJ223

MCR01MRTJ223

ROHM Semiconductor

RES SMD 22K OHM 5% 1/16W 0402

1985
MCR25JZHJ184

MCR25JZHJ184

ROHM Semiconductor

RES SMD 180K OHM 5% 1/4W 1210

1696
ESR03EZPF1503

ESR03EZPF1503

ROHM Semiconductor

RES SMD 150K OHM 1% 1/4W 0603

8916
MCR10ERTJ472

MCR10ERTJ472

ROHM Semiconductor

RES SMD 4.7K OHM 5% 1/8W 0805

4
MCR10ERTF3323

MCR10ERTF3323

ROHM Semiconductor

RES SMD 332K OHM 1% 1/8W 0805

597
ESR03EZPF8204

ESR03EZPF8204

ROHM Semiconductor

RES SMD 8.2M OHM 1% 1/4W 0603

0
ESR10EZPF2741

ESR10EZPF2741

ROHM Semiconductor

RES SMD 2.74K OHM 1% 0.4W 0805

0
PMR10EZPFU9L00

PMR10EZPFU9L00

ROHM Semiconductor

RES 0.009 OHM 1% 1/2W 0805

17311

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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