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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCS0805BTE88K5

RNCS0805BTE88K5

Stackpole Electronics, Inc.

RES 88.5K OHM 0.1% 1/10W 0805

0
RMCF2512FT20R5

RMCF2512FT20R5

Stackpole Electronics, Inc.

RES 20.5 OHM 1% 1W 2512

4085
RNCF0805BTE442K

RNCF0805BTE442K

Stackpole Electronics, Inc.

RES 442K OHM 0.1% 1/8W 0805

0
RNCF0402BTT10K0

RNCF0402BTT10K0

Stackpole Electronics, Inc.

RES 10K OHM 0.1% 1/16W 0402

0
RNCF0805DTC8R25

RNCF0805DTC8R25

Stackpole Electronics, Inc.

RES 8.25 OHM 0.5% 1/8W 0805

0
RNCF1206DKE2R49

RNCF1206DKE2R49

Stackpole Electronics, Inc.

RES 2.49 OHM 0.5% 1/4W 1206

0
RMCP2010JT150K

RMCP2010JT150K

Stackpole Electronics, Inc.

RES 150K OHM 5% 1W 2010

0
RNCF0805DTE976R

RNCF0805DTE976R

Stackpole Electronics, Inc.

RES 976 OHM 0.5% 1/8W 0805

0
RMCF0201FT10R5

RMCF0201FT10R5

Stackpole Electronics, Inc.

RES 10.5 OHM 1% 1/20W 0201

0
RNCF0805BTC1K21

RNCF0805BTC1K21

Stackpole Electronics, Inc.

RES 1.21K OHM 0.1% 1/8W 0805

0
RNCF0603CTE7K50

RNCF0603CTE7K50

Stackpole Electronics, Inc.

RES 7.5K OHM 0.25% 1/10W 0603

0
RNCF0603DKE2R26

RNCF0603DKE2R26

Stackpole Electronics, Inc.

RES 2.26 OHM 0.5% 1/16W 0603

0
RNCF0603BKE180K

RNCF0603BKE180K

Stackpole Electronics, Inc.

RES 180K OHM 0.1% 1/10W 0603

0
RNCF0603BKE715R

RNCF0603BKE715R

Stackpole Electronics, Inc.

RES 715 OHM 0.1% 1/10W 0603

0
RMCF2512JT120R

RMCF2512JT120R

Stackpole Electronics, Inc.

RES 120 OHM 5% 1W 2512

8498
RPC1210JT1K00

RPC1210JT1K00

Stackpole Electronics, Inc.

RES 1K OHM 5% 1/2W 1210

0
RMCF0201FT2R26

RMCF0201FT2R26

Stackpole Electronics, Inc.

RES 2.26 OHM 1% 1/20W 0201

0
RNCF1206BKE9K10

RNCF1206BKE9K10

Stackpole Electronics, Inc.

RES 9.1K OHM 0.1% 1/3W 1206

0
RMCF0603FT8K25

RMCF0603FT8K25

Stackpole Electronics, Inc.

RES 8.25K OHM 1% 1/10W 0603

67371
RMCF2010FT1R20

RMCF2010FT1R20

Stackpole Electronics, Inc.

RES 1.2 OHM 1% 3/4W 2010

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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