TCH35PR510J Equivalent & Substitute Parts

Part Overview

The TCH35PR510J is a 510 mOhms ±5% 35W through-hole resistor in TO-220-2 package manufactured by Ohmite. This thick film, moisture-resistant component is designed for high-power applications requiring low-resistance dissipation. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning.

Substiute Parts

TCH35PR510J

OhmiteIn Stock: 1028TCH35PR510J Datasheet

Current PartRFQ

TCH35PR510JE

OhmiteIn Stock: 903TCH35PR510JE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TCH35PR510J is determined by strict equivalence across the following critical parameters:

• Resistance value: 510 mOhms
• Tolerance: ±5%
• Power rating: 35W
• Package configuration: TO-220-2 with 2 terminations
• Composition: Thick film construction
• Environmental rating: Moisture resistant
• Operating temperature range: -55°C to 175°C

The TCH35PR510JE meets all these criteria and qualifies as a direct substitute. Both parts maintain identical electrical specifications and physical footprint compatibility, with differences limited to product status, compliance certifications, and temperature coefficient performance.

Parameter Comparison

Engineering Selection Recommendations

The TCH35PR510JE is the direct substitute for the obsolete TCH35PR510J. Both components share identical electrical performance and mechanical compatibility for TO-220-2 footprints.

Selection between these parts is determined by system requirements:

TCH35PR510JE is preferred for new designs and ongoing procurement due to active product status and RoHS compliance certification. The improved temperature coefficient (±100ppm/°C versus ±700ppm/°C) provides superior stability across the operating temperature range. The slightly increased seated height (0.787" versus 0.591") must be verified against PCB clearance constraints.

TCH35PR510J remains applicable only for legacy system maintenance where existing inventory is available and RoHS non-compliance is acceptable. Procurement of new units is not recommended due to obsolete status.

Frequently Asked Questions (FAQ)

Q: Can TCH35PR510JE be used as a direct replacement for TCH35PR510J?

A: Yes. Both components are electrically and mechanically equivalent with identical resistance (510 mOhms), tolerance (±5%), power rating (35W), and TO-220-2 package configuration. Physical footprint compatibility is confirmed.

Q: What is the difference in temperature coefficient between these parts?

A: The TCH35PR510J has a temperature coefficient of ±700ppm/°C, while the TCH35PR510JE has ±100ppm/°C. The TCH35PR510JE provides superior temperature stability. Both operate across -55°C to 175°C.

Q: Are there height differences that affect PCB layout?

A: Yes. The TCH35PR510J has a maximum seated height of 0.591" (15.00mm), while the TCH35PR510JE measures 0.787" (20.00mm). Verify clearance above the component before substitution.

Q: What is the RoHS compliance status?

A: The TCH35PR510J is RoHS non-compliant. The TCH35PR510JE is RoHS compliant. For applications requiring RoHS certification, the TCH35PR510JE is mandatory.

Q: Why is the TCH35PR510J listed as obsolete?

A: The TCH35PR510J has reached end-of-life status. The TCH35PR510JE is the active replacement offering improved specifications and compliance certifications.

Q: Are packaging options different?

A: The TCH35PR510J packaging is unspecified in available data. The TCH35PR510JE is supplied in tube packaging. Confirm packaging requirements for your procurement process.