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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RW1S0BAR750J

RW1S0BAR750J

Ohmite

RES 0.75 OHM 5% 1W J LEAD

0
KDV04DR620ET

KDV04DR620ET

Ohmite

RESISTOR CURRENT SENSE

10000
KDV08DR220ET

KDV08DR220ET

Ohmite

RES 220M OHM 0.5% 1/4W 0805

4124
HVC0402T5005JET

HVC0402T5005JET

Ohmite

RES SMD 50M OHM 5% 1/20W 0402

885
ACPP0603 270R B

ACPP0603 270R B

Ohmite

RES SMD 270 OHM 0.1% 1/16W 0603

0
LVM12FTR015E-TR

LVM12FTR015E-TR

Ohmite

RES 0.015 OHM 1% 1/2W 1206

2231
RC0S2CA15R0JE

RC0S2CA15R0JE

Ohmite

RES SMD 15 OHM 5% 1/4W J LEAD

0
KDV06FR082ET

KDV06FR082ET

Ohmite

RES 82M OHM 1% 1/5W 0603

4327
FCSL20R010FER

FCSL20R010FER

Ohmite

RES 0.01 OHM 1% 1W 0805

5637
FC4L64R002GER

FC4L64R002GER

Ohmite

RES 0.002 OHM 2W 2512 WIDE

17010
LVM06FTR015E-TR

LVM06FTR015E-TR

Ohmite

RES 0.015 OHM 1% 1/8W 0603

2
RW3R0DB15R0JET

RW3R0DB15R0JET

Ohmite

RES SMD 15 OHM 5% 3W J LEAD

0
KDV04FR180ET

KDV04FR180ET

Ohmite

RESISTOR CURRENT SENSE

10000
RW3R0DBR005JE

RW3R0DBR005JE

Ohmite

RES 0.005 OHM 5% 3W J LEAD

95
RW5S0FA4K70JET

RW5S0FA4K70JET

Ohmite

RES SMD 4.7K OHM 5% 5W L BEND

0
FC4L110R025FER

FC4L110R025FER

Ohmite

RES 0.025 OHM 5W 4320 WIDE

1480
TDH50H20R0FE-TR

TDH50H20R0FE-TR

Ohmite

TO-263 HEATSINKABLE THICK FILM R

460
RW2S0CBR200JE

RW2S0CBR200JE

Ohmite

RES 0.2 OHM 5% 2W J LEAD

0
AP725 150R F

AP725 150R F

Ohmite

RES SMD 150 OHM 1% 20W TO263

0
RW5S0FA1K00JE

RW5S0FA1K00JE

Ohmite

RES SMD 1K OHM 5% 5W L BEND

249

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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