Equivalent & Substitute Parts for 508AS102KDG2

Part Overview

The Ohmite 508AS102KDG2 is a 48W ceramic chassis mount resistor with 1 kOhms resistance and ±10% tolerance. This Active product is designed for high-power applications requiring moisture-resistant, non-inductive performance across an operating temperature range of -55°C to 230°C. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the allowable specifications for this resistor category.

Substiute Parts

508AS102KDG2

OhmiteIn Stock: 1023508AS102KDG2 Datasheet

Current PartRFQ

502AS102KDG2

OhmiteIn Stock: 815502AS102KDG2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 508AS102KDG2 is determined by the following critical parameters:

• Resistance Value: Must be 1 kOhms
• Tolerance: Must be ±10%
• Composition: Must be Ceramic
• Temperature Coefficient: Must be 0 / -800ppm/°C
• Operating Temperature Range: Must be -55°C ~ 230°C
• Lead Style: Must be Solder Lugs
• Package / Case: Must be Radial, Flat Oval
• Series: Must be 500 (Ohmite)

The 502AS102KDG2 meets all critical electrical and mechanical parameters. The primary difference is the power rating (12W versus 48W), which represents a derating of the component. This substitution is valid only in applications where the 12W power rating is sufficient for the circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 508AS102KDG2 and 502AS102KDG2 are Active products from the Ohmite 500 series with identical electrical specifications and compliance status. Selection between these parts depends on power dissipation requirements:

• 508AS102KDG2: Use when circuit design requires 48W power handling capability
• 502AS102KDG2: Use when circuit design requires 12W power handling capability or when space constraints favor the shorter 2.000" length

Both parts share identical RoHS non-compliance status and are suitable for applications within the -55°C to 230°C operating temperature range. Physical dimensions differ in length; height and width remain constant.

Frequently Asked Questions (FAQ)

Q: Can the 502AS102KDG2 replace the 508AS102KDG2 in all applications?

A: The 502AS102KDG2 can replace the 508AS102KDG2 only if the circuit design requires no more than 12W power dissipation. The electrical characteristics (resistance, tolerance, temperature coefficient, operating temperature range) are identical. If the application requires 48W power handling, the 502AS102KDG2 is not suitable.

Q: What is the primary difference between these two parts?

A: The primary difference is power rating (48W versus 12W) and physical length (8.000" versus 2.000"). All other electrical and mechanical parameters are identical.

Q: Are there any compliance differences between these parts?

A: Both parts share identical RoHS non-compliance status and ECCN classification. No compliance advantage exists between the two options.

Q: Do these parts have the same mounting requirements?

A: Both parts use Solder Lugs as the lead style and require brackets (not included) for mounting. Height and width dimensions are identical; length differs.

Q: Can I use the 502AS102KDG2 in a high-temperature application?

A: Yes. The 502AS102KDG2 operates across the same temperature range (-55°C ~ 230°C) as the 508AS102KDG2 with identical temperature coefficient specifications.