Equivalent & Substitute Parts for 352091KJT

Part Overview

The 352091KJT is a 91 kOhms ±5% 1W thick film chip resistor manufactured by TE Connectivity Passive Product in the 2512 (6432 Metric) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). Substitute parts are necessary when the original manufacturer part becomes unavailable, when design requirements demand enhanced specifications such as tighter tolerance or automotive qualification, or when supply chain optimization requires alternative sourcing from qualified manufacturers.

Substiute Parts

352091KJT

TE Connectivity Passive ProductIn Stock: 798352091KJT Datasheet

Current PartRFQ

ERJ-1TYJ913U

Panasonic Electronic ComponentsIn Stock: 4804ERJ-1TYJ913U Datasheet

DirectRFQ

RMCF2512JT91K0

Stackpole Electronics IncIn Stock: 4137RMCF2512JT91K0 Datasheet

DirectRFQ

ERJ-1TNF9102U

Panasonic Electronic ComponentsIn Stock: 4968ERJ-1TNF9102U Datasheet

UpgradeRFQ

CRCW251291K0JNEG

Vishay DaleIn Stock: 2803CRCW251291K0JNEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 352091KJT is determined by strict equivalence across the following critical parameters: resistance value (91 kOhms), tolerance (±5%), power rating (1W), and package type (2512/6432 Metric). All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional compatibility in circuit applications.

Substitute parts are categorized into three groups based on additional specifications and product status:

Direct Substitutes (Equivalent Specifications): Parts that match all primary parameters including tolerance (±5%), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C ~ 155°C). These include ERJ-1TYJ913U, RMCF2512JT91K0, and CRCW251291K0JNEG. These parts provide equivalent electrical performance with potential enhancements such as automotive AEC-Q200 qualification.

Upgrade Substitute (Enhanced Tolerance): ERJ-1TNF9102U provides tighter tolerance (±1% versus ±5%) and improved temperature coefficient (±100ppm/°C versus ±200ppm/°C) while maintaining the same 1W power rating and 2512 package. This part is suitable for applications requiring higher precision.

Similar Substitute (Equivalent Specifications): CRCW251291K0JNEG matches all primary electrical parameters and package requirements with automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: RMCF2512JT91K0 (Stackpole Electronics) and CRCW251291K0JNEG (Vishay Dale) are recommended as primary substitutes. Both maintain Active product status, provide equivalent electrical specifications, and offer extended operating temperature range (-55°C ~ 155°C) compared to the original part. Both are ROHS3 compliant and carry AEC-Q200 automotive qualification.

For Enhanced Precision Applications: ERJ-1TNF9102U (Panasonic) provides tighter tolerance (±1%) and superior temperature coefficient (±100ppm/°C), making it suitable for circuits requiring higher accuracy. This part carries AEC-Q200 qualification and extended temperature range. Note that this part is marked "Not For New Designs" by the manufacturer.

For Legacy System Maintenance: ERJ-1TYJ913U (Panasonic) provides equivalent specifications with AEC-Q200 qualification and extended temperature range. This part is also marked "Not For New Designs" and should be used only for existing system support.

All substitute parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF9102U be used as a direct replacement for 352091KJT?

A: ERJ-1TNF9102U is electrically compatible as a direct replacement. It maintains the same 91 kOhms resistance, 1W power rating, and 2512 package. However, it provides enhanced specifications with ±1% tolerance versus ±5%, and ±100ppm/°C temperature coefficient versus ±200ppm/°C. This part is suitable for applications where tighter tolerance is beneficial or required.

Q: What is the difference between the substitute parts in terms of product status?

A: RMCF2512JT91K0 and CRCW251291K0JNEG are classified as Active products, indicating ongoing manufacturer support and availability. ERJ-1TYJ913U and ERJ-1TNF9102U are marked "Not For New Designs," meaning these parts are available but manufacturers recommend against using them in new circuit designs. For new designs, RMCF2512JT91K0 or CRCW251291K0JNEG are preferred.

Q: Are all substitute parts automotive qualified?

A: All listed substitute parts carry AEC-Q200 automotive qualification. The original 352091KJT does not specify automotive qualification. If automotive qualification is required for your application, any of the substitute parts satisfy this requirement.

Q: Do the substitute parts have the same physical dimensions as the original?

A: All substitute parts use the 2512 (6432 Metric) package with identical height specifications (0.028" maximum seated height). Length and width dimensions are nominally equivalent: 352091KJT measures 0.252" L × 0.126" W; RMCF2512JT91K0 measures 0.248" L × 0.126" W; CRCW251291K0JNEG measures 0.248" L × 0.124" W. These minor dimensional variations are within standard PCB footprint tolerances and do not affect interchangeability.

Q: What is the operating temperature advantage of the substitute parts?

A: The original 352091KJT operates from -55°C to 125°C. All substitute parts extend the upper operating limit to 155°C, providing 30°C additional thermal margin. This extended range is beneficial for applications in high-temperature environments or systems with elevated ambient conditions.

Q: Can I use CRCW251291K0JNEG in place of 352091KJT without circuit redesign?

A: Yes. CRCW251291K0JNEG is a direct functional equivalent with identical resistance (91 kOhms), tolerance (±5%), power rating (1W), and package (2512). It requires no circuit redesign and provides enhanced specifications including AEC-Q200 qualification and extended temperature range.

Q: What does "Not For New Designs" mean for ERJ-1TNF9102U and ERJ-1TYJ913U?

A: This designation indicates that while these parts are currently available and functional, the manufacturers do not recommend their use in newly developed circuits. These parts are typically maintained for legacy system support and repair. For new circuit designs, RMCF2512JT91K0 or CRCW251291K0JNEG are the preferred choices.