ERJ-S1TF1433U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF1433U is a 143 kOhms ±1% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This component 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 829 units available in inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design revisions require alternative qualified sources. The ERJ-1TNF1433U represents a direct functional equivalent from the same manufacturer, though it carries a "Not For New Designs" status, making it suitable only for legacy system support or replacement applications.

Substiute Parts

ERJ-S1TF1433U

Panasonic Electronic ComponentsIn Stock: 866ERJ-S1TF1433U Datasheet

Current PartRFQ

ERJ-1TNF1433U

Panasonic Electronic ComponentsIn Stock: 4367ERJ-1TNF1433U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S1TF1433U is determined by strict equivalence across the following critical parameters:

• Resistance value: 143 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-1TNF1433U meets all electrical and mechanical substitution criteria. The primary distinction is product lifecycle status: ERJ-S1TF1433U is active production, while ERJ-1TNF1433U is designated "Not For New Designs." This classification reflects manufacturing continuity rather than functional or performance differences.

Parameter Comparison

Engineering Selection Recommendations

For new design implementations, the ERJ-S1TF1433U is the appropriate selection due to its active production status and full lifecycle support from Panasonic Electronic Components.

The ERJ-1TNF1433U is functionally equivalent and maintains identical electrical and mechanical specifications. Its "Not For New Designs" designation indicates it remains available for legacy system support, field replacements, and maintenance of existing products. This part is suitable for applications where design continuity with existing inventory is required or where replacement of failed components in fielded systems is necessary.

Both parts satisfy automotive AEC-Q200 qualification requirements and ROHS3 compliance mandates. Selection between these parts should be based on product lifecycle requirements rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can ERJ-1TNF1433U be used as a direct replacement for ERJ-S1TF1433U in new designs?

A: No. While the parts are electrically and mechanically identical, ERJ-1TNF1433U carries "Not For New Designs" status. New designs must use ERJ-S1TF1433U to ensure long-term manufacturing support and component availability.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts share identical resistance value (143 kOhms), tolerance (±1%), power rating (1W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C).

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both ERJ-S1TF1433U and ERJ-1TNF1433U carry AEC-Q200 automotive qualification and are ROHS3 compliant.

Q: What is the significance of the different series designations (ERJ-S1T vs. ERJ-1TN)?

A: Series designation reflects manufacturing lineage and product lifecycle positioning within Panasonic's resistor portfolio. Both series employ identical thick film technology and meet the same performance specifications for this 143 kOhms 1W 2512 package configuration.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts use identical 2512 (6432 Metric) package dimensions (0.252" L x 0.126" W, 6.40mm x 3.20mm) with matching termination specifications, enabling direct PCB footprint compatibility.

Q: What is the moisture sensitivity level for these parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow processing.