Chip Resistors-Surface Mount

Part Number	Description / PDF	Quantity
CPF0603B5R23E TE Connectivity AMP Connectors	RES 5.23 OHM 0.1% 1/16W 0603	0
RN73C2A133KBTDF TE Connectivity AMP Connectors	RES SMD 133K OHM 0.1% 1/10W 0805	0
CPF0603B130RE TE Connectivity AMP Connectors	RES 130 OHM 0.1% 1/16W 0603	0
CRGH0603F470R TE Connectivity AMP Connectors	RES 470 OHM 1% 1/5W 0603	0
RP73D1J316RBTG TE Connectivity AMP Connectors	RES SMD 316 OHM 0.1% 1/10W 0603	0
RP73D1J464RBTG TE Connectivity AMP Connectors	RES SMD 464 OHM 0.1% 1/10W 0603	0
RP73D2A475KBTDF TE Connectivity AMP Connectors	RES SMD 475K OHM 0.1% 1/8W 0805	0
CPF0603B34RE TE Connectivity AMP Connectors	RES 34 OHM 0.1% 1/16W 0603	0
CRGH2010F15R4 TE Connectivity AMP Connectors	RES SMD 15.4 OHM 1% 1W 2010	0
CRG1206F3K0 TE Connectivity AMP Connectors	RES SMD 3K OHM 1% 1/4W 1206	0
CRGH1206F118K TE Connectivity AMP Connectors	RES SMD 118K OHM 1% 1/2W 1206	0
SMW2180RJT TE Connectivity AMP Connectors	RES SMD 180 OHM 5% 2W 2616	4328
CRGV1206F619K TE Connectivity AMP Connectors	RES SMD 619K OHM 1% 1/4W 1206	0
CRGV2512F3M32 TE Connectivity AMP Connectors	RES SMD 3.32M OHM 1% 1W 2512	0
RL73K3AR18GTE TE Connectivity AMP Connectors	RES 0.18 OHM 2% 1W 2512	0
CPF0603B178KE TE Connectivity AMP Connectors	RES 178 KOHM 0.1% 1/16W 0603	0
CPF0805B270RE1 TE Connectivity AMP Connectors	RES SMD 270 OHM 0.1% 1/10W 0805	1000
CPF-A-0402B750RE1 TE Connectivity AMP Connectors	RES SMD 750 OHM 0.1% 1/16W 0402	0
35406M8JT TE Connectivity AMP Connectors	RES 3540 6M8 5%	4000
CPF0603F2R0C TE Connectivity AMP Connectors	RES 2 OHM 1% 1/16W 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

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