Chip Resistors-Surface Mount

Part Number	Description / PDF	Quantity
CHP2512K1212FNW Vishay / Sfernice	RES SMD THICK FILM 2512	0
CHP2512K2202JBT Vishay / Sfernice	RES SMD THICK FILM 2512	0
CHP0603K10R0GBT Vishay / Sfernice	RES SMD THICK FILM 0603	0
CH0402-50RGFW Vishay / Sfernice	RES CH 0402 THIN FILM	0
CHP0805K15R8JNT Vishay / Sfernice	RES SMD THICK FILM 0805	0
CHP0603K11R8FBT Vishay / Sfernice	RES SMD THICK FILM 0603	0
CHP1206K4750FNT Vishay / Sfernice	RES SMD THICK FILM 1206	0
CHP2512K1003JBT Vishay / Sfernice	RES SMD THICK FILM 2512	0
CHP0805K2613FNT Vishay / Sfernice	RES SMD THICK FILM 0805	0
D2TO035C560R0JRE3 Vishay / Sfernice	D2TO 35 C 560U 5% R500	0
CHP0603L4R99GNT Vishay / Sfernice	RES SMD THICK FILM 0603	0
P0402Y1001WNT Vishay / Sfernice	P 0402 Y 1001 W N TR	0
CHP0805K5363FBT Vishay / Sfernice	RES SMD THICK FILM 0805	0
PHT0402E1001BGTD Vishay / Sfernice	PHT 0402 1001 B G TR1000	0
RSK22N2K67B0325 Vishay / Sfernice	SFERNICE THIN FILMS	0
CHP0603L2701JBT Vishay / Sfernice	RES SMD THICK FILM 0603	0
CHP2512L3010FBT Vishay / Sfernice	RES SMD THICK FILM 2512	0
CHPHT0805K1211FGT Vishay / Sfernice	RES SMD 1.21K OHM 1% 0.02W 0805	79
D2TO020C51R00FTE3 Vishay / Sfernice	RES SMD 51 OHM 1% 20W TO263	0
CHP2512K8R06FNTD Vishay / Sfernice	RES SMD THICK FILM 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

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