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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
KTR10EZPF4753

KTR10EZPF4753

ROHM Semiconductor

RES SMD 475K OHM 1% 1/8W 0805

8292
ESR10EZPF8872

ESR10EZPF8872

ROHM Semiconductor

RES SMD 88.7K OHM 1% 0.4W 0805

0
KTR18EZPF1432

KTR18EZPF1432

ROHM Semiconductor

RES SMD 14.3K OHM 1% 1/4W 1206

0
UCR10EVHFSR013

UCR10EVHFSR013

ROHM Semiconductor

RES 0.013 OHM 1% 1/3W 0805

6986
LTR10EVHFLR560

LTR10EVHFLR560

ROHM Semiconductor

RES 0.56 OHM 1/2W 0805 WIDE

8250
LTR18EZPJ621

LTR18EZPJ621

ROHM Semiconductor

RES SMD 620 OHM 3/4W 1206 WIDE

0
KTR10EZPF2552

KTR10EZPF2552

ROHM Semiconductor

RES SMD 25.5K OHM 1% 1/8W 0805

0
UCR18EVHJSR047

UCR18EVHJSR047

ROHM Semiconductor

RES 0.047 OHM 5% 1/2W 1206

0
MCR18ERTJ685

MCR18ERTJ685

ROHM Semiconductor

RES SMD 6.8M OHM 5% 1/4W 1206

4920
MCR10ERTF1544

MCR10ERTF1544

ROHM Semiconductor

RES SMD 1.54M OHM 1% 1/8W 0805

4965
LTR10EZPJ430

LTR10EZPJ430

ROHM Semiconductor

RES SMD 43 OHM 1/4W 0805 WIDE

12989
MCR10ERTF9102

MCR10ERTF9102

ROHM Semiconductor

RES SMD 91K OHM 1% 1/8W 0805

47
ESR18EZPJ684

ESR18EZPJ684

ROHM Semiconductor

RES SMD 680K OHM 5% 1/2W 1206

0
GMR100HTBFMR033

GMR100HTBFMR033

ROHM Semiconductor

RES 0.033 OHM 1% 7W 2512

905
ESR25JZPJ821

ESR25JZPJ821

ROHM Semiconductor

RES SMD 820 OHM 5% 2/3W 1210

0
ESR10EZPF45R3

ESR10EZPF45R3

ROHM Semiconductor

RES SMD 45.3 OHM 1% 0.4W 0805

0
TRR01MZPJ393

TRR01MZPJ393

ROHM Semiconductor

RES SMD 39K OHM 5% 1/16W 0402

0
TRR03EZPJ391

TRR03EZPJ391

ROHM Semiconductor

RES SMD 390 OHM 5% 1/10W 0603

0
MCR18ERTF1330

MCR18ERTF1330

ROHM Semiconductor

RES SMD 133 OHM 1% 1/4W 1206

3812
ESR10EZPF1402

ESR10EZPF1402

ROHM Semiconductor

RES SMD 14K 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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