# AST Wirewound Resistors Datasheet Summary

## Features
· High temperature silicone coating
· Complete welded construction
· Tight tolerance (5% above 1 )
· Excellent stability (< 3% resistance change)

## Electrical Specifications
· Power Rating: 12 to 225W
· Resistance Range: 1  to 398K
· Resistance Tolerance: 5% or 10%
· Temperature Coefficient: ±260 ppm/°C (≥ 20 ), ±400 ppm/°C (< 20 )
· Operating Temperature: -55 °C to 350 °C

## Global Part Numbering
· Example: AST0250625R00JE
· Includes codes for model, terminal designation, finish, value, tolerance, packaging, and special features.

## Mounting Hardware

· Various bracket styles available (100, 200, 300)
· Sliders available for specific models.

## Dimensions
· Dimensions vary by model (see datasheet for specific values)
· Key dimensions include length, diameter, and terminal setback.

## Technical Specifications
· Insulation Resistance: 1M 
· Dielectric Voltage: 1000 VAC
· Terminal Strength: 10 lbs

## Material Specifications
· Element: Copper-nickel alloy or nickel-chrome alloy
· Core: Cordierite, steatite
· Coating: Special high temperature silicone
· Terminals: Alloy 42 (tinned alloy available)