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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
SDR03EZPF3163

SDR03EZPF3163

ROHM Semiconductor

RES SMD 316 KOHM 1% 0.3W 0603

3434
ESR03EZPJ134

ESR03EZPJ134

ROHM Semiconductor

RES SMD 130K OHM 5% 1/4W 0603

4367
PMR03EZPJ000

PMR03EZPJ000

ROHM Semiconductor

RES SMD 0 OHM JUMPER 1/4W 0603

0
MCR10ERTJ111

MCR10ERTJ111

ROHM Semiconductor

RES SMD 110 OHM 5% 1/8W 0805

4310
KTR10EZPF3900

KTR10EZPF3900

ROHM Semiconductor

RES SMD 390 OHM 1% 1/8W 0805

613
MCR10ERTF71R5

MCR10ERTF71R5

ROHM Semiconductor

RES SMD 71.5 OHM 1% 1/8W 0805

4670
LTR18EZPJ152

LTR18EZPJ152

ROHM Semiconductor

RES SMD 1.5K OHM 3/4W 1206 WIDE

0
MCR006YRTF8201

MCR006YRTF8201

ROHM Semiconductor

RES SMD 8.2K OHM 1% 1/20W 0201

13863
MCR50JZHF2210

MCR50JZHF2210

ROHM Semiconductor

RES SMD 221 OHM 1% 1/2W 2010

2790
ESR10EZPF3921

ESR10EZPF3921

ROHM Semiconductor

RES SMD 3.92K OHM 1% 0.4W 0805

0
MCR03ERTF2151

MCR03ERTF2151

ROHM Semiconductor

RES SMD 2.15K OHM 1% 1/10W 0603

49
SFR10EZPJ4R7

SFR10EZPJ4R7

ROHM Semiconductor

RES 4.7 OHM 5% 1/8W 0805

0
TRR03EZPF5901

TRR03EZPF5901

ROHM Semiconductor

RES SMD 5.9K OHM 1% 1/10W 0603

0
KTR10EZPF1873

KTR10EZPF1873

ROHM Semiconductor

RES SMD 187K OHM 1% 1/8W 0805

9511
MCR25JZHJ361

MCR25JZHJ361

ROHM Semiconductor

RES SMD 360 OHM 5% 1/4W 1210

1299
MCR03ERTF4300

MCR03ERTF4300

ROHM Semiconductor

RES SMD 430 OHM 1% 1/10W 0603

2
ESR18EZPF1541

ESR18EZPF1541

ROHM Semiconductor

RES SMD 1.54K OHM 1% 1/2W 1206

0
MCR10ERTF1073

MCR10ERTF1073

ROHM Semiconductor

RES SMD 107K OHM 1% 1/8W 0805

11295
ESR10EZPF2871

ESR10EZPF2871

ROHM Semiconductor

RES SMD 2.87K OHM 1% 0.4W 0805

0
KTR25JZPJ3R3

KTR25JZPJ3R3

ROHM Semiconductor

RES SMD 3.3 OHM 5% 1/3W 1210

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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