LTR50UZPJ2R2 Equivalent & Substitute Parts

Part Overview

The LTR50UZPJ2R2 is a 2.2 Ohm ±5% 1W thick film chip resistor manufactured by Rohm Semiconductor in the Wide 2010 (5025 Metric) package. This component is designed for automotive applications and carries AEC-Q200 qualification with pulse withstanding capability. The part is currently active in production with 979 pieces available in stock. Alternative models are identified to support design flexibility, inventory optimization, and tolerance requirement variations in circuit applications.

Substiute Parts

LTR50UZPJ2R2

Rohm SemiconductorIn Stock: 1064LTR50UZPJ2R2 Datasheet

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LTR50UZPF2R20

Rohm SemiconductorIn Stock: 14297LTR50UZPF2R20 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTR50UZPJ2R2 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2.2 Ohms
• Power rating: 1W
• Package / Case: Wide 2010 (5025 Metric), 1020
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200

Allowable Variation Parameters:

• Tolerance: Can be tighter (lower tolerance value) than the original ±5%
• Temperature coefficient: Can be lower (better stability) than ±200ppm/°C

The LTR50UZPF2R20 qualifies as a direct substitute because it maintains all mandatory parameters while offering improved tolerance (±1% versus ±5%) and superior temperature coefficient stability (±100ppm/°C versus ±200ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

The LTR50UZPF2R20 is a qualified substitute for the LTR50UZPJ2R2 in applications where the original part is unavailable or where improved tolerance performance is beneficial. Both parts maintain identical AEC-Q200 automotive qualification, ROHS3 compliance, and operating temperature specifications. The substitute part offers tighter tolerance control (±1% versus ±5%) and improved temperature stability (±100ppm/°C versus ±200ppm/°C), making it suitable for circuits requiring enhanced precision. Physical dimensions, package configuration, and thermal characteristics remain identical, ensuring direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can LTR50UZPF2R20 be used as a direct replacement for LTR50UZPJ2R2?

A: Yes. Both parts share identical resistance value, power rating, package dimensions, and automotive qualification. The substitute offers improved tolerance and temperature coefficient performance.

Q: Are there any PCB layout or footprint differences between these parts?

A: No. Both parts use the Wide 2010 (5025 Metric) package with identical dimensions: 0.098" L x 0.197" W (2.50mm x 5.00mm) and maximum seated height of 0.026" (0.65mm). No PCB modifications are required.

Q: What is the significance of the tolerance difference?

A: The LTR50UZPJ2R2 has ±5% tolerance, while LTR50UZPF2R20 has ±1% tolerance. Tighter tolerance means the actual resistance value will be closer to the nominal 2.2 Ohm specification. Applications requiring precise resistance values benefit from the substitute part.

Q: Do both parts meet automotive standards?

A: Yes. Both parts carry AEC-Q200 qualification and are suitable for automotive applications within the specified operating temperature range of -55°C to 155°C.

Q: What does the temperature coefficient specification indicate?

A: Temperature coefficient describes how resistance changes with temperature. The LTR50UZPF2R20 has ±100ppm/°C compared to ±200ppm/°C for the LTR50UZPJ2R2, indicating superior stability across the operating temperature range.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and have moisture sensitivity level 1 (unlimited), indicating no special storage or handling requirements.