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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RNCF0805DKE1K30

RNCF0805DKE1K30

Stackpole Electronics, Inc.

RES 1.3K OHM 0.5% 1/8W 0805

0
HMC0603JT68M0

HMC0603JT68M0

Stackpole Electronics, Inc.

RES 68M OHM 5% 1/10W 0603

0
RNCF0402BKE3K74

RNCF0402BKE3K74

Stackpole Electronics, Inc.

RES 3.74K OHM 0.1% 1/16W 0402

0
RMCF0402FT511R

RMCF0402FT511R

Stackpole Electronics, Inc.

RES 511 OHM 1% 1/16W 0402

2147483647
RTAN0805BKE4K70

RTAN0805BKE4K70

Stackpole Electronics, Inc.

RES 4.7K OHM 0.1% 1/5W 0805

295
RNCF1206BTC21K5

RNCF1206BTC21K5

Stackpole Electronics, Inc.

RES 21.5K OHM 0.1% 1/3W 1206

0
RMCF0402JT20R0

RMCF0402JT20R0

Stackpole Electronics, Inc.

RES 20 OHM 5% 1/16W 0402

98122
RNCF0603BTE62K0

RNCF0603BTE62K0

Stackpole Electronics, Inc.

RES 62K OHM 0.1% 1/10W 0603

0
RNCF0805DTE845K

RNCF0805DTE845K

Stackpole Electronics, Inc.

RES 845K OHM 0.5% 1/8W 0805

0
CSR0805JTR390

CSR0805JTR390

Stackpole Electronics, Inc.

RES 0.39 OHM 5% 1/4W 0805

0
RNCF0603DKE20R5

RNCF0603DKE20R5

Stackpole Electronics, Inc.

RES 20.5 OHM 0.5% 1/10W 0603

0
RNCS0805BKC1K27

RNCS0805BKC1K27

Stackpole Electronics, Inc.

RES 1.27K OHM 0.1% 1/10W 0805

0
MLF14FTC3R32

MLF14FTC3R32

Stackpole Electronics, Inc.

RES 3.32 OHM 1% 1/4W MELF 0204

0
RNCF0603DTE383R

RNCF0603DTE383R

Stackpole Electronics, Inc.

RES 383 OHM 0.5% 1/10W 0603

0
RNCF1206BTE16K2

RNCF1206BTE16K2

Stackpole Electronics, Inc.

RES 16.2K OHM 0.1% 1/3W 1206

0
RNCF0402DKE140R

RNCF0402DKE140R

Stackpole Electronics, Inc.

RES 140 OHM 0.5% 1/16W 0402

0
RMCF0201FT715R

RMCF0201FT715R

Stackpole Electronics, Inc.

RES 715 OHM 1% 1/20W 0201

2576
RNCF1206DKE360R

RNCF1206DKE360R

Stackpole Electronics, Inc.

RES 360 OHM 0.5% 1/3W 1206

0
SM6227FB10R0

SM6227FB10R0

Stackpole Electronics, Inc.

RES 10 OHM 1% 3W 6227

0
RNCF0603DKE7K15

RNCF0603DKE7K15

Stackpole Electronics, Inc.

RES 7.15K OHM 0.5% 1/10W 0603

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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