ERJ-S1TF68R1U Equivalent & Substitute Parts

Part Overview

The ERJ-S1TF68R1U is a 68.1 Ohm ±1% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The product is currently active and available in high volume inventory.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements shift to alternative manufacturers, or when supply chain optimization requires qualified alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

ERJ-S1TF68R1U

Panasonic Electronic ComponentsIn Stock: 779ERJ-S1TF68R1U Datasheet

Current PartRFQ

ERJ-1TNF68R1U

Panasonic Electronic ComponentsIn Stock: 13037ERJ-1TNF68R1U Datasheet

SimilarRFQ

CR2512-FX-68R1ELF

Bourns Inc.In Stock: 12027CR2512-FX-68R1ELF Datasheet

DirectRFQ

CRCW251268R1FKEG

Vishay DaleIn Stock: 31152CRCW251268R1FKEG Datasheet

SimilarRFQ

RMCF2512FT68R1

Stackpole Electronics IncIn Stock: 12047RMCF2512FT68R1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S1TF68R1U are qualified based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Resistance value: 68.1 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match Exactly):

• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Number of terminations: 2

Compliance & Environmental (Must Match or Exceed):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Automotive AEC-Q200 qualification (where specified)

All substitute parts listed meet these criteria and are functionally interchangeable in circuit applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

CRCW251268R1FKEG (Vishay Dale) and RMCF2512FT68R1 (Stackpole Electronics Inc) are the preferred substitutes. Both parts are active products with AEC-Q200 automotive qualification matching the original specification. CRCW251268R1FKEG offers the highest inventory availability at 31,070 pieces.

Secondary Substitute (Active Status, No Automotive Rating):

CR2512-FX-68R1ELF (Bourns Inc.) is an active product with identical electrical and mechanical specifications. This part does not carry AEC-Q200 qualification and is suitable only for applications where automotive certification is not required.

Legacy Substitute (Not Recommended for New Designs):

ERJ-1TNF68R1U (Panasonic) is marked "Not For New Designs" and should be used only for legacy system maintenance or repair applications where design continuity is required. Despite high inventory availability, this part should not be selected for new circuit designs.

Frequently Asked Questions (FAQ)

Q: Can I use CR2512-FX-68R1ELF as a direct replacement for ERJ-S1TF68R1U in automotive applications?

A: No. CR2512-FX-68R1ELF lacks AEC-Q200 automotive qualification. Use only CRCW251268R1FKEG or RMCF2512FT68R1 for automotive applications requiring AEC-Q200 compliance.

Q: Are all substitute parts physically identical in size?

A: All substitute parts use the 2512 (6432 Metric) package. Minor dimensional variations exist within tolerance: length ranges from 0.248" to 0.252", width from 0.122" to 0.126", and height from 0.028" to 0.030". These variations are within standard PCB design tolerances and do not affect board-level compatibility.

Q: Why is ERJ-1TNF68R1U marked "Not For New Designs"?

A: This designation indicates the part is in legacy status. Panasonic recommends using current-generation alternatives for new circuit designs. This part remains available for maintenance and repair of existing systems.

Q: What is the difference between ERJ-S1TF68R1U and ERJ-1TNF68R1U?

A: Both parts share identical electrical specifications (68.1 Ω, ±1%, 1W, AEC-Q200). The primary difference is product lifecycle status: ERJ-S1TF68R1U is active, while ERJ-1TNF68R1U is not recommended for new designs. The ERJ-S1TF series includes anti-sulfur coating as an additional feature.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the environmental compliance of the original part.