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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
RMCF2512JT3M60

RMCF2512JT3M60

Stackpole Electronics, Inc.

RES 3.6M OHM 5% 1W 2512

0
MLF14FTE60R4

MLF14FTE60R4

Stackpole Electronics, Inc.

RES 60.4 OHM 1% 1/4W MELF 0204

0
UHVB2010FCD500M

UHVB2010FCD500M

Stackpole Electronics, Inc.

RES 500M OHM 1% 2010 6KV

352
RNCF0805DTE39R0

RNCF0805DTE39R0

Stackpole Electronics, Inc.

RES 39 OHM 0.5% 1/8W 0805

0
RNCF0805DTC14K3

RNCF0805DTC14K3

Stackpole Electronics, Inc.

RES 14.3K OHM 0.5% 1/8W 0805

0
RMCF2512FT5R90

RMCF2512FT5R90

Stackpole Electronics, Inc.

RES 5.9 OHM 1% 1W 2512

0
RMCP2010FT5R49

RMCP2010FT5R49

Stackpole Electronics, Inc.

RES 5.49 OHM 1% 1W 2010

0
RNCF0603BKE61K9

RNCF0603BKE61K9

Stackpole Electronics, Inc.

RES 61.9K OHM 0.1% 1/10W 0603

0
RNCF1206BTC11R3

RNCF1206BTC11R3

Stackpole Electronics, Inc.

RES 11.3 OHM 0.1% 1/3W 1206

0
RNCF0805BTE300R

RNCF0805BTE300R

Stackpole Electronics, Inc.

RES 300 OHM 0.1% 1/8W 0805

0
RNCF0805DTC665R

RNCF0805DTC665R

Stackpole Electronics, Inc.

RES 665 OHM 0.5% 1/8W 0805

0
RPC0603JT33K0

RPC0603JT33K0

Stackpole Electronics, Inc.

RES 33K OHM 5% 1/10W 0603

0
RNCF0402BTC30R9

RNCF0402BTC30R9

Stackpole Electronics, Inc.

RES 30.9 OHM 0.1% 1/16W 0402

0
RNCF1206DKE909K

RNCF1206DKE909K

Stackpole Electronics, Inc.

RES 909K OHM 0.5% 1/3W 1206

0
RMCF0805FT5K76

RMCF0805FT5K76

Stackpole Electronics, Inc.

RES 5.76K OHM 1% 1/8W 0805

2980
RMCF2010FT1R54

RMCF2010FT1R54

Stackpole Electronics, Inc.

RES 1.54 OHM 1% 3/4W 2010

0
RMCP2010FT39K2

RMCP2010FT39K2

Stackpole Electronics, Inc.

RES 39.2K OHM 1% 1W 2010

0
RMCF1206FT1R10

RMCF1206FT1R10

Stackpole Electronics, Inc.

RES 1.1 OHM 1% 1/4W 1206

0
CSRF0603JT10L0

CSRF0603JT10L0

Stackpole Electronics, Inc.

RES 0.01 OHM 5% 1/4W 0603

0
RMCF2512FT158R

RMCF2512FT158R

Stackpole Electronics, Inc.

RES 158 OHM 1% 1W 2512

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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