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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
LTR18EZPJ362

LTR18EZPJ362

ROHM Semiconductor

RES SMD 3.6K OHM 3/4W 1206 WIDE

0
KTR03EZPJ562

KTR03EZPJ562

ROHM Semiconductor

RES SMD 5.6K OHM 5% 1/10W 0603

0
KTR10EZPF14R7

KTR10EZPF14R7

ROHM Semiconductor

RES SMD 14.7 OHM 1% 1/8W 0805

0
ESR18EZPF3162

ESR18EZPF3162

ROHM Semiconductor

RES SMD 31.6K OHM 1% 1/2W 1206

0
SFR10EZPF6801

SFR10EZPF6801

ROHM Semiconductor

RES 6.8 KOHM 1% 1/8W 0805

0
KTR10EZPF30R1

KTR10EZPF30R1

ROHM Semiconductor

RES SMD 30.1 OHM 1% 1/8W 0805

4340
MCR18ERTF8450

MCR18ERTF8450

ROHM Semiconductor

RES SMD 845 OHM 1% 1/4W 1206

4155
ESR18EZPJ1R0

ESR18EZPJ1R0

ROHM Semiconductor

RES SMD 1 OHM 5% 1/2W 1206

4950
ESR10EZPF9313

ESR10EZPF9313

ROHM Semiconductor

RES SMD 931K OHM 1% 0.4W 0805

0
ESR25JZPJ4R7

ESR25JZPJ4R7

ROHM Semiconductor

RES SMD 4.7 OHM 5% 2/3W 1210

819
KTR18EZPF4532

KTR18EZPF4532

ROHM Semiconductor

RES SMD 45.3K OHM 1% 1/4W 1206

0
LTR100JZPF11R0

LTR100JZPF11R0

ROHM Semiconductor

RES SMD 11 OHM 2W 2512 WIDE

2262
KTR18EZPF2701

KTR18EZPF2701

ROHM Semiconductor

RES SMD 2.7K OHM 1% 1/4W 1206

1206
KTR25JZPF2R40

KTR25JZPF2R40

ROHM Semiconductor

RES SMD 2.4 OHM 1% 1/3W 1210

2716
LTR10EVHFL1R50

LTR10EVHFL1R50

ROHM Semiconductor

RES SMD 1.5 OHM 1/2W 0805 WIDE

17832
GMR100HTBFER015

GMR100HTBFER015

ROHM Semiconductor

RES 0.015 OHM 1% 7W 2512

4000
ESR18EZPF80R6

ESR18EZPF80R6

ROHM Semiconductor

RES SMD 80.6 OHM 1% 1/2W 1206

0
ESR10EZPF1244

ESR10EZPF1244

ROHM Semiconductor

RES SMD 1.24M OHM 1% 0.4W 0805

0
TRR01MZPJ4R7

TRR01MZPJ4R7

ROHM Semiconductor

RES SMD 4.7 OHM 5% 1/16W 0402

0
ESR18EZPJ6R8

ESR18EZPJ6R8

ROHM Semiconductor

RES SMD 6.8 OHM 5% 1/2W 1206

3760

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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