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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
MCR10ERTF1821

MCR10ERTF1821

ROHM Semiconductor

RES SMD 1.82K OHM 1% 1/8W 0805

1651
TRR03EZPF4992

TRR03EZPF4992

ROHM Semiconductor

RES SMD 49.9K OHM 1% 1/10W 0603

9318
KTR18EZPF1623

KTR18EZPF1623

ROHM Semiconductor

RES SMD 162K OHM 1% 1/4W 1206

5696
MCR25JZHJ204

MCR25JZHJ204

ROHM Semiconductor

RES SMD 200K OHM 5% 1/4W 1210

643
UCR006YVPFLR100

UCR006YVPFLR100

ROHM Semiconductor

RES 0.1 OHM 1% 1/10W 0201

18184
KTR10EZPF3402

KTR10EZPF3402

ROHM Semiconductor

RES SMD 34K OHM 1% 1/8W 0805

0
ESR25JZPF1R30

ESR25JZPF1R30

ROHM Semiconductor

RES SMD 1.3 OHM 1% 2/3W 1210

0
KTR18EZPF34R8

KTR18EZPF34R8

ROHM Semiconductor

RES SMD 34.8 OHM 1% 1/4W 1206

0
ESR10EZPF4122

ESR10EZPF4122

ROHM Semiconductor

RES SMD 41.2K OHM 1% 0.4W 0805

0
LTR18EZPF2000

LTR18EZPF2000

ROHM Semiconductor

RES SMD 200 OHM 3/4W 1206 WIDE

10
ESR18EZPF26R1

ESR18EZPF26R1

ROHM Semiconductor

RES SMD 26.1 OHM 1% 1/2W 1206

0
TRR18EZPF2000

TRR18EZPF2000

ROHM Semiconductor

RES SMD 200 OHM 1% 1/4W 1206

5000
TRR03EZPJ201

TRR03EZPJ201

ROHM Semiconductor

RES SMD 200 OHM 5% 1/10W 0603

0
MCR10ERTF1053

MCR10ERTF1053

ROHM Semiconductor

RES SMD 105K OHM 1% 1/8W 0805

3073
ESR03EZPJ471

ESR03EZPJ471

ROHM Semiconductor

RES SMD 470 OHM 5% 1/4W 0603

65482
SFR10EZPF1802

SFR10EZPF1802

ROHM Semiconductor

RES 18 KOHM 1% 1/8W 0805

0
UCR03EWPFSR039

UCR03EWPFSR039

ROHM Semiconductor

RES 0.039 OHM 1% 1/4W 0603

392
ESR03EZPJ131

ESR03EZPJ131

ROHM Semiconductor

RES SMD 130 OHM 5% 1/4W 0603

9877
UCR03EVPFSR082

UCR03EVPFSR082

ROHM Semiconductor

RES 0.082 OHM 1% 1/4W 0603

1580
SFR10EZPJ360

SFR10EZPJ360

ROHM Semiconductor

RES 36 OHM 5% 1/8W 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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