ample-chip ample-chip
RFQ
BOM

Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
SG73P1JTTD270G

SG73P1JTTD270G

KOA Speer Electronics, Inc.

RES 27 OHM 2% 1/3W 0603

0
RN73R2BTTD1332D50

RN73R2BTTD1332D50

KOA Speer Electronics, Inc.

RES 13.3K OHM 0.5% 1/4W 1206

0
RN73H2ETTD7593F50

RN73H2ETTD7593F50

KOA Speer Electronics, Inc.

RES 759K OHM 1% 1/4W 1210

0
SG731JTTD563K

SG731JTTD563K

KOA Speer Electronics, Inc.

RES 56K OHM 10% 1/10W 0603

0
RN73H2BTTD2670D10

RN73H2BTTD2670D10

KOA Speer Electronics, Inc.

RES 267 OHM 0.5% 1/4W 1206

0
RS73G1JTTD2210B

RS73G1JTTD2210B

KOA Speer Electronics, Inc.

RES 221 OHM 0.1% 1/5W 0603

0
RK73H2ETTD51R1F

RK73H2ETTD51R1F

KOA Speer Electronics, Inc.

RES 51.1 OHM 1% 1/2W 1210

14860
RK73H2BTTD2001F

RK73H2BTTD2001F

KOA Speer Electronics, Inc.

RES 2K OHM 1% 1/4W 1206

622
RK73H1JTTD88R7F

RK73H1JTTD88R7F

KOA Speer Electronics, Inc.

RES 88.7 OHM 1% 1/8W 0603

22866
RN73H2BTTD1200D25

RN73H2BTTD1200D25

KOA Speer Electronics, Inc.

RES 120 OHM 0.5% 1/4W 1206

0
RK73H3ATTE24R0D

RK73H3ATTE24R0D

KOA Speer Electronics, Inc.

RES 24 OHM 0.5% 1W 2512

0
RN73H2ATTD97R6C10

RN73H2ATTD97R6C10

KOA Speer Electronics, Inc.

RES 97.6 OHM 0.25% 1/8W 0805

0
RK73G2ATTD27R0D

RK73G2ATTD27R0D

KOA Speer Electronics, Inc.

THICKFILM RESISTOR 0805

0
WK73R2JTTE4991F

WK73R2JTTE4991F

KOA Speer Electronics, Inc.

RES 4.99K OHM 1% 1W 1812

0
SG73S1ETTP1582D

SG73S1ETTP1582D

KOA Speer Electronics, Inc.

RES 15.8K OHM 0.5% 1/8W 0402

0
RN73H2ATTD33R0C25

RN73H2ATTD33R0C25

KOA Speer Electronics, Inc.

RES 33 OHM 0.25% 1/8W 0805

0
RK73H1ETTP1582F

RK73H1ETTP1582F

KOA Speer Electronics, Inc.

RES 15.8K OHM 1% 1/10W 0402

66693
RN73H1JTTD7871B10

RN73H1JTTD7871B10

KOA Speer Electronics, Inc.

RES 7.87K OHM 0.1% 1/10W 0603

0
RN73R2BTTD83R5D10

RN73R2BTTD83R5D10

KOA Speer Electronics, Inc.

RES 83.5 OHM 0.5% 1/4W 1206

0
RN73R2ATTD1452C50

RN73R2ATTD1452C50

KOA Speer Electronics, Inc.

RES 14.5K OHM 0.25% 1/8W 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

RFQ BOM Call Skype Email
Top