Alpha TLC Series

  • Alpha Electronics

Product Features

  • Conformally coated thin film precision resistor
  • Resistance range from 200kΩ to 10MΩ
  • Tolerance from ±0.02% to ±1%
  • TCR of ±5 ppm/°C or ±10 ppm/°C
  • Power rating of 0.25W (at +70°C)
  • Temperature Range from -25°C up to +155°C

Applications

The TLC conformally coated resistor series from Alpha Electronics further expands their resistor range offerings by utilising thin film resistor technology to allow for larger resistance values of up to 10MΩ. The TLC series offers a precise resistor with a resistance range from 200kΩ up to 10MΩ all in a small through-hole package with low temperature coefficients down to ±5 ppm/°C (between -25°C and +125°C) as well as tolerances down to ±0.02%.

  • Conformally coated thin film through-hole resistor
  • Available in any resistance between 200kΩ and 10MΩ
  • Tight tolerance options as low as ±0.02% available over the whole resistance range
  • Tight TCR options available as low as ±5 ppm/°C (from -25°C up to +125°C)
  • Maximum working voltage of 300V
  • Power rating of 0.25W (at +70°C)
  • Maximum rated operating temperature +70°C
  • Temperature range from -25°C up to +155°C

 

The Alpha Electronics TLC thin film precision resistor series has been designed with terminals that are easy for insertion into the PCB.

The TLC series offers a pin pitch of 5.08 ±0.25mm.

 

The below table gives the full specifications for each resistor model available including the Alpha TLC series:

Alpha TLC Specifications
* Symbols parenthesized are for part number composition 

 

Alpha TLC Series

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Specifications

Weight 0.00000 kg
Dimensions 6.20 x 2.20 x 7.30mm
Maximum Resistance

10MΩ

Minimum Resistance

200kΩ

Package / Size

,

Power Rating

Product Type

,

Resistance Value

Series / Model

Temperature Coefficient

,

Temperature Range (°C)

-25 to +155°C

Tolerance

, , , ,

Alpha Resistor Videos

We are pleased to provide you with a range of videos, please see below for the latest content available:

 

 

VIDEOS
Place holder video for YouTube video Resistor Stability Put to the Test (Demo Video)

In this video, our host Richard Zuratt puts the stability of the three major resistor technologies — foil, thin, and thick film — to the test. Each resistor type is subjected to an overload pulse and its change in resistance value is recorded. Due to the homogeneous nature of the VPG Bulk Metal® Foil resistor, it is the only of the three to experience no change from the high power pulse. This demonstrated performance makes foil resistors the technology of choice for critical applications where long-term stability and survivability are paramount.

Place holder video for YouTube video Advantages of Using Bulk Metal® Foil Resistors in High-Humidity Environments

All resistors that are based on nichrome, which is a category that includes both thin film devices and Bulk Metal Foil resistors, are susceptible to electro-chemical corrosion or etching when placed in a high humidity environment and powered with a very low wattage. But since the nichrome element of a Bulk Metal Foil resistor is hundreds of times thicker than the element in a thin film device with the same value, it will last much longer under these conditions. This video shows the actual etching process and survival times for thin film and foil nichrome resistive elements as they are tested in 100% humidity conditions.

Place holder video for YouTube video Comparison Testing of Chip Resistor Technologies Under High Vibration

Surface-mount resistors suffer physical stresses when exposed to high vibration or thermally unstable environments. Failure modes commonly occur in welds, solder joints, connectors, and terminations, ultimately resulting in circuit failure. In this demonstration, vibration-table-mounted boards are subjected to ±2° deflection 25 times per second and monitored for any ΔR > 0.1%. All the chip resistors failed in 2 to 12 minutes (8K to 16K cycles). But the Alpha MPP molded Bulk Metal® Z-Foil resistor with flexible terminations experienced over a million cycles with no change in resistance.

VIDEOS
Place holder video for YouTube video
Resistor Stability Put to the Test (Demo Video

In this video, our host Richard Zuratt puts the stability of the three major resistor technologies — foil, thin, and thick film — to the test. Each resistor type is subjected to an overload pulse and its change in resistance value is recorded. Due to the homogeneous nature of the VPG Bulk Metal® Foil resistor, it is the only of the three to experience no change from the high power pulse. This demonstrated performance makes foil resistors the technology of choice for critical applications where long-term stability and survivability are paramount.

Place holder video for YouTube video
Advantages of Using Bulk Metal® Foil Resistors in High-Humidity Environments

All resistors that are based on nichrome, which is a category that includes both thin film devices and Bulk Metal Foil resistors, are susceptible to electro-chemical corrosion or etching when placed in a high humidity environment and powered with a very low wattage. But since the nichrome element of a Bulk Metal Foil resistor is hundreds of times thicker than the element in a thin film device with the same value, it will last much longer under these conditions. This video shows the actual etching process and survival times for thin film and foil nichrome resistive elements as they are tested in 100% humidity conditions.

Place holder video for YouTube video

Surface-mount resistors suffer physical stresses when exposed to high vibration or thermally unstable environments. Failure modes commonly occur in welds, solder joints, connectors, and terminations, ultimately resulting in circuit failure. In this demonstration, vibration-table-mounted boards are subjected to ±2° deflection 25 times per second and monitored for any ΔR > 0.1%. All the chip resistors failed in 2 to 12 minutes (8K to 16K cycles). But the Alpha MPP molded Bulk Metal® Z-Foil resistor with flexible terminations experienced over a million cycles with no change in resistance.

Alpha TLC Series Resources

Product Datasheet

Supporting Product Information

Supporting Manufacturer Information

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Alpha TLC Series