Chip Resistors-Surface Mount

Part Number	Description / PDF	Quantity
ERJ-XGNJ562Y Panasonic	RES SMD 5.6K OHM 5% 1/32W 01005	8574
ERJ-U14F9533U Panasonic	RES 953K OHM 1% 1/2W 1210 SMD	0
ERJ-U02F1132X Panasonic	RES 11.3K OHM 1% 1/10W 0402 SMD	0
ERJ-1TYJ471U Panasonic	RES SMD 470 OHM 5% 1W 2512	11950
ERJ-P14D82R0U Panasonic	RES SMD 82 OHM 0.5% 1/2W 1210	0
ERJ-U01J473C Panasonic	RES 47K OHM 5% 1/20W 0201 SMD	14300
ERJ-S02F1540X Panasonic	RES SMD 154 OHM 1% 1/10W 0402	0
ERA-6VRB5361V Panasonic	RES 5.36K OHM 0.1% 1/4W 0805	0
ERA-2AEB4642X Panasonic	RES SMD 46.4KOHM 0.1% 1/16W 0402	17009
ERJ-PA3F6190V Panasonic	RES SMD 619 OHM 1% 1/4W 0603	0
ERA-3VEB2262V Panasonic	RES 22.6K OHM 0.1% 1/8W 0603	0
ERJ-PA3F4871V Panasonic	RES SMD 4.87K OHM 1% 1/4W 0603	0
ERJ-HP6D9760V Panasonic	RES 976 OHM 0.5% 1/2W 0805	0
ERJ-H3EF7500V Panasonic	RES 750 OHM 1% 1/6W 0603	0
ERJ-P06F5363V Panasonic	RES SMD 536 KOHM 1% 1/2W 0805	0
ERA-3ARB112V Panasonic	RES SMD 1.1K OHM 0.1% 1/10W 0603	9216
ERJ-U03J393V Panasonic	RES 39K OHM 5% 1/10W 0603 SMD	4890
ERJ-U6RD5620V Panasonic	RES 562 OHM 0.5% 1/8W 0805 SMD	0
ERJ-U6SFR15V Panasonic	RES 0.15 OHM 1% 1/4W 0805	6080
ERJ-U0XF6801Y Panasonic	RES 6.8K OHM 1% 1/32W 01005	19000

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