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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
73L7R33F

73L7R33F

CTS Corporation

RES 0.33 OHM 1% 1W 2512

0
73M2AR024F

73M2AR024F

CTS Corporation

RES 0.024 OHM 1% 2W 2512

0
73L3R20J

73L3R20J

CTS Corporation

RES 0.2 OHM 5% 1/8W 0805

11361
73M1R009G

73M1R009G

CTS Corporation

RES 0.009 OHM 2% 1W 2512

0
73L4R27F

73L4R27F

CTS Corporation

RES 0.27 OHM 1% 1/4W 1206

0
73L7R30G

73L7R30G

CTS Corporation

RES 0.3 OHM 2% 1W 2512

0
73WL4R022J

73WL4R022J

CTS Corporation

RES 0.022 OHM 5% 3/4W 1206 WIDE

0
73E3R068G

73E3R068G

CTS Corporation

RES 0.068 OHM 2% 1/4W 0805

0
73WL7R010J

73WL7R010J

CTS Corporation

RES 0.01 OHM 5% 2W 2512 WIDE

0
73WL4R180F

73WL4R180F

CTS Corporation

RES 0.18 OHM 1% 3/4W 1206 WIDE

0
73L1R75G

73L1R75G

CTS Corporation

RES 0.75 OHM 2% 1/10W 0402

0
73WE7R022J

73WE7R022J

CTS Corporation

RES 0.022 OHM 5% 2W 2512 WIDE

0
73WE7R015J

73WE7R015J

CTS Corporation

RES 0.015 OHM 5% 2W 2512 WIDE

0
73WE7R039J

73WE7R039J

CTS Corporation

RES 0.039 OHM 5% 2W 2512 WIDE

0
73L0R51J

73L0R51J

CTS Corporation

RES 0.51 OHM 5% 1/16W 0201

0
73WL4R150J

73WL4R150J

CTS Corporation

RES 0.15 OHM 5% 3/4W 1206 WIDE

0
73L7R12J

73L7R12J

CTS Corporation

RES 0.12 OHM 5% 1W 2512

0
73L5R16J

73L5R16J

CTS Corporation

RES 0.16 OHM 5% 1/2W 1210

0
73M1R004G

73M1R004G

CTS Corporation

RES 0.004 OHM 2% 1W 2512

0
73WL7R110F

73WL7R110F

CTS Corporation

RES 0.11 OHM 1% 2W 2512 WIDE

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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