850F150 Equivalent & Substitute Parts

Part Overview

The Ohmite 850F150 is a 150 Ohms ±1% 50W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The 850F150 features aluminum housing with flanged mounting and solder lug termination, suitable for high-power applications requiring precision resistance values and thermal stability across extended operating ranges.

Substiute Parts

850F150

OhmiteIn Stock: 1147850F150 Datasheet

Current PartRFQ

850F150E

OhmiteIn Stock: 1215850F150E Datasheet

DirectRFQ

TMC050150R0FE02

Vishay DaleIn Stock: 967TMC050150R0FE02 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 850F150 are qualified based on electrical and mechanical parameter equivalence. The following criteria determine substitution validity:

Electrical Parameters (Must Match):

• Resistance value: 150 Ohms
• Tolerance: ±1%
• Power rating: 50W
• Composition: Wirewound
• Temperature coefficient: ±20ppm/°C

Mechanical Parameters (Must Match):

• Housing type: Aluminum
• Mounting feature: Flanges
• Lead style: Solder Lugs
• Package type: Axial, Box

Thermal Parameters (Must Be Compatible):

• Operating temperature range must encompass or match the original specification

Two substitute parts meet these criteria: the Ohmite 850F150E and the Vishay Dale TMC050150R0FE02.

Parameter Comparison

Engineering Selection Recommendations

Ohmite 850F150E: This substitute is the direct manufacturer equivalent from Ohmite, maintaining identical electrical and thermal specifications to the obsolete 850F150. The 850F150E carries Active product status and ROHS3 compliance, making it the preferred choice for new designs and procurement continuity. Packaging is available in Bulk format with 1202 units in stock.

Vishay Dale TMC050150R0FE02: This cross-manufacturer substitute meets all electrical and mechanical requirements with one thermal limitation. The operating temperature range is -55°C ~ 250°C, which is 25°C lower than the original specification at the upper limit. The TMC050150R0FE02 is ROHS3 compliant and includes moisture-resistant features. This part is suitable for applications where the maximum operating temperature does not exceed 250°C. Bulk packaging is available with 941 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the 850F150E be used as a direct replacement for the 850F150?

A: Yes. The 850F150E is electrically and mechanically identical to the 850F150, with matching resistance, tolerance, power rating, temperature coefficient, and physical dimensions. The primary difference is product status (Active vs. Obsolete) and improved RoHS compliance.

Q: What is the key difference between the Ohmite 850F150E and Vishay Dale TMC050150R0FE02?

A: Both parts are electrically equivalent with identical resistance, tolerance, power rating, and temperature coefficient. The TMC050150R0FE02 has a maximum operating temperature of 250°C compared to 275°C for the 850F150E. Physical dimensions vary slightly: the TMC050150R0FE02 is 1.968" L x 1.140" W versus 1.938" L x 1.156" W for the 850F150E.

Q: Is the TMC050150R0FE02 suitable for high-temperature applications?

A: The TMC050150R0FE02 operates to 250°C maximum. If your application requires operation above 250°C, the Ohmite 850F150E is the appropriate choice, as it supports temperatures to 275°C.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the Ohmite 850F150E and Vishay Dale TMC050150R0FE02 are ROHS3 compliant, whereas the original 850F150 is RoHS non-compliant.

Q: Do the substitute parts have the same mounting configuration?

A: Yes. Both substitute parts feature aluminum housing with flanged mounting and solder lug termination, matching the original 850F150 mechanical interface.