Equivalent & Substitute Parts for ERJ-S1TF11R5U

Part Overview

The ERJ-S1TF11R5U is a 11.5 Ohms ±1% 1W chip resistor manufactured by Panasonic Electronic Components in the 2512 (6432 Metric) package. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 671 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design flexibility is required for multi-source component strategies in production environments.

Substiute Parts

ERJ-S1TF11R5U

Panasonic Electronic ComponentsIn Stock: 725ERJ-S1TF11R5U Datasheet

Current PartRFQ

ERJ-1TNF11R5U

Panasonic Electronic ComponentsIn Stock: 6613ERJ-1TNF11R5U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF11R5U is determined by strict equivalence across the following critical parameters:

• Resistance value: 11.5 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The ERJ-1TNF11R5U meets all electrical and mechanical parameters required for direct substitution. This part differs only in series designation (ERJ-1TN versus ERJ-S1T) and product lifecycle status, with no variation in functional specifications or package dimensions.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-1TNF11R5U is electrically and mechanically equivalent to the ERJ-S1TF11R5U across all specified parameters. Both parts maintain identical electrical performance, package footprint, and thermal characteristics. The primary distinction is product lifecycle status: the ERJ-S1TF11R5U remains in active production, while the ERJ-1TNF11R5U is designated "Not For New Designs."

For ongoing production and new design implementations, the ERJ-S1TF11R5U is the preferred selection due to its active status and assured long-term availability. The ERJ-1TNF11R5U may be considered for legacy system maintenance or when supply of the primary part is constrained, provided existing inventory supports the application timeline.

Both parts carry identical AEC-Q200 automotive qualification and ROHS3 compliance, ensuring regulatory and quality requirements are met regardless of which part is selected.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF11R5U be used as a direct replacement for ERJ-S1TF11R5U in new designs?

A: Electrically and mechanically, yes. However, the ERJ-1TNF11R5U carries a "Not For New Designs" status, which indicates Panasonic does not recommend its use in new product development. For new designs, the ERJ-S1TF11R5U is the appropriate selection.

Q: Are there any differences in package dimensions between these parts?

A: No. Both parts use the 2512 (6432 Metric) package with identical dimensions of 0.252" L x 0.126" W (6.40mm x 3.20mm) and maximum seated height of 0.028" (0.70mm). PCB footprints are interchangeable.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the ERJ-S1TF11R5U and ERJ-1TNF11R5U carry AEC-Q200 automotive qualification and are ROHS3 compliant, meeting automotive and environmental regulatory standards.

Q: What is the significance of the series designation difference (ERJ-S1T versus ERJ-1TN)?

A: The series designation reflects internal Panasonic product line organization. The different series letters do not indicate functional differences in electrical performance, tolerance, power rating, or package specifications for these equivalent parts.

Q: Are there supply or inventory considerations when selecting between these parts?

A: The ERJ-S1TF11R5U has 671 units in current stock with active production status. The ERJ-1TNF11R5U has 6547 units available but is not recommended for new designs. For production continuity, the active-status ERJ-S1TF11R5U is the more reliable long-term choice.