Introduction of Chip Fixed Resistor

Chip fixed resistor is also called SMD resistor, it is one of metallic glass uranium resistors, which mixes metal powder with glass uranium powder and use silk screen print method on basic board to make resistors. These resistors are moisture resistant and fire retardant with small TCR. It can save cost of circuit and make design refined.

Chip fixed resistors are classified as below in general:
General purpose thick film SMD resistors
General purpose thin film SMD resistors
Low resistance SMD resistors
SMD current sensing resistors
SMD networking resistors
High precision high stability SMD resistors
Features of high precision high stability SMD resistors:
High precision: ±0.01% ~ ±1%
TaN and NiCr Vacuum sputtering
TCR: ±5PPM/°C ~ ±50PPM/°C
Wide R-Value range
Products with Pb-free Terminations Meet RoHS Requirments
Application: Medical instruments, high precision testers, electrommunication, automatic equipment controller, communication device, cell phone, GPS, PDA, etc.

Features of SMD resistors:
slim and light;
Applied to reflow oven and wave soldering;
Stable and reliable;
Low cost in assembly, match with SMT;
physical strength and superior performance in high frequency.

SMD resistors are usually widely used in high-end computers, industrial equipment, large scale resistance, automatic controlling machines, electrommunication, multi-media electric instruments, etc.

SMD components are classified according to their shapes: rectangle, cylinder, and polygon, classified according to categories: resistors, capacitors, inductors, transistors, small integrated circuits.

SMT is widely applied now, 90% of electronics use SMT. With developing of small SMT producing equipments, SMT application will be expanded, aviation, aerospace, instruments and meters such fields use SMT electric products.