TNP10SC330RFE Equivalent & Substitute Parts

Part Overview

The TNP10SC330RFE is a through-hole resistor manufactured by Ohmite with a resistance value of 330 ohms, 1% tolerance, and 10-watt power rating in a TO-126 package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part maintains ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), making it suitable for industrial and commercial applications.

Substiute Parts

TNP10SC330RFE

OhmiteIn Stock: 841TNP10SC330RFE Datasheet

Current PartRFQ

AP836 330R J

ARCOLIn Stock: 1765AP836 330R J Datasheet

SimilarRFQ

TBH25P330RJE

OhmiteIn Stock: 933TBH25P330RJE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TNP10SC330RFE is determined by the following critical parameters: resistance value (330 ohms), package compatibility, power dissipation requirements, and compliance certifications. The substitute parts identified maintain the 330-ohm resistance specification and thick-film composition. However, substitutes differ in tolerance (±5% versus 1%), power rating (25W or 35W versus 10W), and package configuration (TO-220-2 versus TO-126). These differences establish distinct substitution categories based on application requirements and circuit board layout constraints.

The TBH25P330RJE represents a direct manufacturer alternative from Ohmite with active product status, while the AP836 330R J provides a cross-manufacturer option from ARCOL. Both substitutes exceed the original power rating and maintain the 330-ohm resistance value, though with relaxed tolerance specifications.

Parameter Comparison

Engineering Selection Recommendations

TBH25P330RJE Selection Criteria: This Ohmite part maintains manufacturer continuity and ROHS3 compliance identical to the original TNP10SC330RFE. The active product status ensures long-term availability and supply chain stability. The 25-watt power rating provides operational margin above the 10-watt requirement. The TO-220-2 package requires circuit board layout modification compared to the TO-126 footprint. The ±5% tolerance is acceptable for applications where the original 1% specification is not critical to circuit function. The TBH25P330RJE includes current sense and moisture-resistant features with a temperature coefficient of ±50ppm/°C.

AP836 330R J Selection Criteria: This ARCOL part offers the highest power rating at 35 watts, providing maximum thermal margin. RoHS compliance and MSL 1 rating match the original part specifications. The TO-220-2 package requires identical board layout considerations as the TBH25P330RJE. The ±5% tolerance and ±100ppm/°C temperature coefficient represent relaxed specifications suitable for general-purpose applications. This option is appropriate when maximum power dissipation headroom is required or when ARCOL component qualification exists within the design environment.

Frequently Asked Questions (FAQ)

Q: Can the TBH25P330RJE directly replace the TNP10SC330RFE without circuit board modification?

A: No. The TBH25P330RJE uses a TO-220-2 package while the TNP10SC330RFE uses TO-126. These packages have different pin configurations and physical dimensions, requiring circuit board layout changes. Pin spacing and mounting hole patterns are not compatible between these package types.

Q: What is the impact of the tolerance difference between 1% and 5%?

A: The TNP10SC330RFE provides ±1% tolerance (327.0 to 333.0 ohms), while both substitutes provide ±5% tolerance (313.5 to 346.5 ohms). Applications requiring precise resistance values for voltage dividers, gain-setting networks, or calibration circuits must evaluate whether the wider tolerance band affects circuit performance specifications.

Q: Why do the substitute parts have higher power ratings than the original?

A: The TBH25P330RJE (25W) and AP836 330R J (35W) exceed the original 10-watt specification. Higher power ratings indicate larger physical packages and improved thermal dissipation capability. These parts are suitable for applications requiring the original 10-watt rating and provide thermal margin for designs with potential power dissipation increases.

Q: Are there compliance differences between the substitute parts?

A: The TBH25P330RJE maintains ROHS3 compliance matching the original part. The AP836 330R J carries RoHS compliance without the specific ROHS3 designation. Both parts are ECCN EAR99 classified. Design environments with explicit ROHS3 requirements should prioritize the TBH25P330RJE.

Q: What is the significance of the "Non-Inductive" feature listed for substitute parts?

A: Non-inductive construction reduces parasitic inductance in the resistor element, minimizing high-frequency impedance variations. This feature is beneficial in RF circuits, switching power supplies, and high-frequency signal conditioning applications. The original TNP10SC330RFE specification does not explicitly state inductive or non-inductive construction.

Q: How do temperature coefficients affect part selection?

A: The TBH25P330RJE specifies ±50ppm/°C while the AP836 330R J specifies ±100ppm/°C. Lower temperature coefficients indicate more stable resistance values across operating temperature ranges. Applications operating across wide temperature ranges or requiring stable gain characteristics should consider the TBH25P330RJE with its superior temperature stability.

Q: What packaging format differences exist between the substitute parts?

A: The TBH25P330RJE is supplied in bulk packaging, while the AP836 330R J is supplied in tube packaging. Bulk packaging typically accommodates automated assembly processes, while tube packaging suits manual assembly or lower-volume production. Procurement and assembly process requirements determine the appropriate packaging format.