Surface Mount Chip Resistors from State of the Art
Semi-Precision Chip Resistors
Semi-precision thick film resistors are available with resistance values from 20 mΩ to 300 MΩ, tolerances to 1% and temperature coefficient of resistance (TCR) to 100 ppm/°C. Thick film resistors have higher current capacity than the precision thin film resistors. Low resistance value devices have low current noise, but current noise increases with resistance value.
Precision Chip Resistors
Precision thin film chip resistors are available in a range of resistance values with tolerances to 0.1% and temperature coefficient of resistance (TCR) to 25 ppm/°C. Precision thin film resistors are available with resistance values from 5 Ω to 1 MΩ. The maximum resistance value decreases with decreasing case size. Thin film resistors have lower current capacity than semi-precision thick film resistors. Precision thin film resistors have low noise regardless of resistance value.
Precision resistor datasheets are available by contacting our high-reliability components team.
|Size Code||Length||Width||Power Rating (mW)||Voltage Rating (V)||Thermal Resistance||Semi-Precision Datasheet|
Nominal measurements are in inches. Size 0504 is not available in Type A. Size 0705 is usually the most economical. Its use is recommended except when its size is excessive or where power and/or voltage may be exceeded.
Zero Ohm Surface Mount Jumpers
Zero ohm jumpers (chip resistors) are made using thick film materials and use 000 as the value code in the thick film part number scheme. Termination finishes are available for solderable applications (X & Y) as well as for hybrid applications (G, P, & C).
|Size Code||Length||Width||Thickness||Maximum Resistance||Current Rating (A)||Datasheet|
Nominal measurements are in inches.
Current Sense Surface Mount Resistors
Four terminal current sense resistors provide separate current source and sense inputs for precise current sense applications. Current sense resistors are available in resistance values from 0.020Ω to 5Ω in surface mount and wire bondable types.
High Power Surface Mount Resistors
High power resistors are offered in several termination types and finishes suitable for surface mount applications. We offer SN60 solder over nickel barrier for applications using tin-lead solder. We also offer silver over nickel barrier for RoHS lead-free soldering.
High power resistors are built on high thermal conductivity substrates. Semi-precision thick film devices are constructed on beryllia, while our precision thin film devices are built on aluminium nitride.
|Size Code||Length||Width||Thickness||Voltage Rating||Power Rating*||Thermal Resistance||Datasheet|
Nominal measurements are in inches. *Termination type D or E.
High Voltage Surface Mount Resistors
High voltage chip resistors are available in resistance values from 5 kΩ to 1 GΩ with ratings from 600 V to 5 kV. High voltage resistors are available in surface mount and wire bondable types. High voltage resistors are specified using product code V.
High Frequency Surface Mount Resistors
High frequency resistors made using thin film materials have lower loss at high frequency than resistors made using thick film materials. High frequency resistors with values from 5 to 200 ohms can be made using thin film materials. Thick film materials are used to produce high frequency resistors with resistance values from mΩ to MΩ.
Wraparound termination type C is used at frequencies < 4 GHz. At frequencies > 4GHz, inductive losses associated with the wraparound degrades performance. Flip chip mounting (film side down) reduces the inductive losses while providing a solder fillet that is readily inspected.
The planar terminations of the A termination type minimize inductive losses at higher frequencies when the device is flip-chip soldered (film side down).
Termination resistors are available on alumina, beryllia (semi-precision high power), and aluminium nitride (precision high power) substrates using either the E or L termination type in solderable or wire bondable termination finishes.
|Size Code||Length||Width||Thickness||Power Rating||Datasheet|
Nominal measurements are in inches.
Untrimmed thick film resistors can be mounted into a circuit and subsequently dynamically laser trimmed to tune circuit performance. Untrimmed resistors also perform better than trimmed resistors in pulse power applications due to reduced current crowding around the trim. Untrimmed resistors are available in 10 and 20% tolerances.