Chip Resistors-Surface Mount

Part Number	Description / PDF	Quantity
ERJ-S03J180V Panasonic	RES SMD 18 OHM 5% 1/10W 0603	0
ERJ-U03F95R3V Panasonic	RES 95.3 OHM 1% 1/10W 0603 SMD	0
ERJ-U02D3160X Panasonic	0402 ANTI-SULFUR RES. , 0.5%, 31	0
ERJ-UP3D4120V Panasonic	RES 412 OHM 0.5% 1.4W 0603	0
ERA-6VEB1001V Panasonic	RES 1K OHM 0.1% 1/4W 0805	7352
ERJ-H3ED1100V Panasonic	RES 110 OHM 0.5% 1/6W 0603	0
ERJ-1GEF1743C Panasonic	RES SMD 174K OHM 1% 1/20W 0201	3597
ERJ-2BSJR18X Panasonic	RES 0.18 OHM 5% 1/6W 0402	9440
ERJ-H3QD1R47V Panasonic	RES 1.47 OHM 0.5% 1/4W 0603	0
ERJ-PA3D61R9V Panasonic	RES SMD 61.9 OHM 0.5% 1/4W 0603	0
ERJ-UP3J9R1V Panasonic	RES 9.1 OHM 5% 1/4W 0603	5000
ERJ-6CWJR015V Panasonic	RES 0.015 OHM 5% 1/2W 0805	3908
ERA-6VEB1602V Panasonic	RES 16K OHM 0.1% 1/4W 0805	0
ERJ-H2RD2432X Panasonic	RES 24.3K OHM 0.5% 1/10W 0402	0
ERJ-P06F3833V Panasonic	RES SMD 383 KOHM 1% 1/2W 0805	0
ERJ-S12F1R82U Panasonic	RES 1.82 OHM 1% 3/4W 1812 SMD	0
ERJ-S02F9763X Panasonic	RES SMD 976K OHM 1% 1/10W 0402	0
ERJ-PA3D57R6V Panasonic	RES SMD 57.6 OHM 0.5% 1/4W 0603	0
ERJ-U14F4640U Panasonic	RES 464 OHM 1% 1/2W 1210 SMD	0
ERJ-U02D6803X Panasonic	0402 ANTI-SULFUR RES. , 0.5%, 68	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

Type	Functional Characteristics	Application Examples
Thick Film Resistors	Cost-effective, standard tolerance ( 1%-5%), power ratings up to 1W	Consumer electronics, power supplies
Thin Film Resistors	High precision ( 0.01%), low noise, stable temperature coefficients	Medical devices, precision instrumentation
Power Resistors	High power dissipation (up to 3W), robust thermal management	Motor drives, EV battery management systems
Network Resistors	Multiple resistors in single package, matched temperature coefficients	Digital circuits, memory modules
Wirewound Resistors	High inductance, precise low-resistance values	Audio 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

Parameter	Description	Importance
Resistance Range	1 to 10M (film), 0.1 to 100k (power)	Determines current control capability
Tolerance	0.01% (precision) to 5% (general)	Impacts circuit accuracy
Power Rating	0.05W to 3W @ 70 C	Defines thermal dissipation limits
TCR	5ppm/ C (thin film) to 200ppm/ C	Affects stability over temperature
Operating Temp	-55 C to +155 C	Defines environmental reliability
Voltage Coefficient	<0.1ppm/V	Ensures 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

Manufacturer	Representative Series	Key Features
Yageo	CRCW Series	0.05W-1W, 0.1% tolerance
Vishay	CRCWE Series	Thin film, TCR 25ppm/ C
ROHM	MCR Series	Power resistors up to 2W
Ohmite	PWR Series	High-power 3W devices
Bourns	CRCU Series	Network 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