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Chip Resistors-Surface Mount

Image Part Number Description / PDF Quantity Rfq
TRR01MZPF1690

TRR01MZPF1690

ROHM Semiconductor

RES SMD 169 OHM 1% 1/16W 0402

14377
KTR10EZPF3650

KTR10EZPF3650

ROHM Semiconductor

RES SMD 365 OHM 1% 1/8W 0805

0
TRR01MZPF6651

TRR01MZPF6651

ROHM Semiconductor

RES SMD 6.65K OHM 1% 1/16W 0402

257
KTR03EZPJ3R0

KTR03EZPJ3R0

ROHM Semiconductor

RES SMD 3 OHM 5% 1/10W 0603

0
MCR03ERTJ620

MCR03ERTJ620

ROHM Semiconductor

RES SMD 62 OHM 5% 1/10W 0603

1
MCR100JZHF86R6

MCR100JZHF86R6

ROHM Semiconductor

RES SMD 86.6 OHM 1% 1W 2512

7730
LTR10EZPF1000

LTR10EZPF1000

ROHM Semiconductor

RES SMD 100 OHM 1/4W 0805 WIDE

2379
ESR18EZPJ123

ESR18EZPJ123

ROHM Semiconductor

RES SMD 12K OHM 5% 1/2W 1206

0
KTR18EZPF62R0

KTR18EZPF62R0

ROHM Semiconductor

RES SMD 62 OHM 1% 1/4W 1206

3998
KTR03EZPJ160

KTR03EZPJ160

ROHM Semiconductor

RES SMD 16 OHM 5% 1/10W 0603

0
MCR25JZHF2671

MCR25JZHF2671

ROHM Semiconductor

RES SMD 2.67K OHM 1% 1/4W 1210

7577
KTR25JZPJ6R2

KTR25JZPJ6R2

ROHM Semiconductor

RES SMD 6.2 OHM 5% 1/3W 1210

0
MCR18ERTF3013

MCR18ERTF3013

ROHM Semiconductor

RES SMD 301K OHM 1% 1/4W 1206

7897
MCR50JZHJ180

MCR50JZHJ180

ROHM Semiconductor

RES SMD 18 OHM 5% 1/2W 2010

1363
ESR10EZPF5492

ESR10EZPF5492

ROHM Semiconductor

RES SMD 54.9K OHM 1% 0.4W 0805

0
ESR10EZPF4701

ESR10EZPF4701

ROHM Semiconductor

RES SMD 4.7K OHM 1% 0.4W 0805

14
ESR18EZPF4992

ESR18EZPF4992

ROHM Semiconductor

RES SMD 49.9K OHM 1% 1/2W 1206

0
KTR03EZPF9101

KTR03EZPF9101

ROHM Semiconductor

RES SMD 9.1K OHM 1% 1/10W 0603

8564
KTR10EZPF1691

KTR10EZPF1691

ROHM Semiconductor

RES SMD 1.69K OHM 1% 1/8W 0805

4105
KTR18EZPF1501

KTR18EZPF1501

ROHM Semiconductor

RES SMD 1.5K OHM 1% 1/4W 1206

740

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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