ERJ-S1TF8451U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF8451U is an 8.45 kOhms ±1% 1W chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in harsh environments. The part is currently in active production status. Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility is required while maintaining equivalent electrical and mechanical performance.

Substiute Parts

ERJ-S1TF8451U

Panasonic Electronic ComponentsIn Stock: 1089ERJ-S1TF8451U Datasheet

Current PartRFQ

ERJ-1TNF8451U

Panasonic Electronic ComponentsIn Stock: 2462ERJ-1TNF8451U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERJ-S1TF8451U is determined by strict equivalence across the following parameters:

• Resistance value: 8.45 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive qualification: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The ERJ-1TNF8451U meets all substitution criteria and is identified as an equivalent part. This substitute maintains identical electrical specifications and mechanical form factor, with the primary distinction being product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S1TF8451U is the recommended primary selection for new designs due to its active product status and ongoing manufacturer support. The ERJ-1TNF8451U is electrically and mechanically equivalent and maintains full AEC-Q200 automotive qualification and ROHS3 compliance. However, the ERJ-1TNF8451U carries a "Not For New Designs" designation, indicating it is in end-of-life phase. Selection of the substitute should be limited to applications requiring component replacement in existing designs or when supply of the primary part is unavailable. Both parts are suitable for automotive and high-reliability applications operating across the -55°C to 155°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF8451U be used as a direct replacement for ERJ-S1TF8451U?

A: Yes. The ERJ-1TNF8451U is electrically and mechanically equivalent. Both parts share identical resistance, tolerance, power rating, package dimensions, and thermal specifications. Pinout and footprint compatibility are assured.

Q: What is the significance of the "Not For New Designs" status on the ERJ-1TNF8451U?

A: This designation indicates the part is in end-of-life phase. While the part remains functionally equivalent and maintains all certifications, the manufacturer does not recommend its use in new product designs. It is suitable for replacement applications in existing designs.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the ERJ-S1TF8451U and ERJ-1TNF8451U carry AEC-Q200 automotive qualification and are rated for the -55°C to 155°C operating temperature range required for automotive environments.

Q: Do these parts require special handling or storage considerations?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control measures are required during storage or handling.

Q: Are there any differences in RoHS or REACH compliance between the two parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the difference between the ERJ-S1T and ERJ-1TN series designations?

A: The series designation reflects the product line within Panasonic's resistor portfolio. The ERJ-S1T series represents the current active product line, while the ERJ-1TN series is in end-of-life status. Electrical and mechanical specifications remain identical across these series for this specific part number.