RG2012P-3481-P-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-3481-P-T1 is a 3.48 kOhms ±0.02% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is manufactured by Susumu and features anti-sulfur properties with AEC-Q200 automotive qualification. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Substiute Parts

RG2012P-3481-P-T1

SusumuIn Stock: 983RG2012P-3481-P-T1 Datasheet

Current PartRFQ

RG2012V-3481-P-T1

SusumuIn Stock: 838RG2012V-3481-P-T1 Datasheet

UpgradeRFQ

PLTT0805Z3481QGT5

Vishay Dale Thin FilmIn Stock: 937PLTT0805Z3481QGT5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012P-3481-P-T1 is determined by the following critical parameters:

Electrical Parameters:

• Resistance value: 3.48 kOhms
• Tolerance: ±0.02%
• Composition: Thin Film

Mechanical Parameters:

• Package: 0805 (2012 Metric)
• Physical dimensions compatible with 0805 footprint
• Number of terminations: 2

Environmental & Compliance Parameters:

• Operating temperature range capability
• AEC-Q200 automotive qualification
• RoHS3 compliance
• Moisture Sensitivity Level 1

Power Dissipation:

• Minimum power rating of 0.125W (1/8W) for direct replacement
• Higher power ratings acceptable for applications with thermal margin

Substitute parts must maintain electrical equivalence (resistance and tolerance) and mechanical compatibility (0805 package footprint). Compliance certifications and environmental ratings determine suitability for specific applications.

Parameter Comparison

Engineering Selection Recommendations

RG2012V-3481-P-T1 (Susumu - Upgrade)

The RG2012V-3481-P-T1 is the primary equivalent substitute for the obsolete RG2012P-3481-P-T1. Both components are manufactured by Susumu and share identical electrical specifications: 3.48 kOhms resistance, ±0.02% tolerance, 0.125W power rating, and 0805 package. The RG2012V-3481-P-T1 is currently in active production status with 789 units in stock. The primary distinction is the improved temperature coefficient of ±5ppm/°C compared to ±25ppm/°C on the original part, providing superior stability across the operating temperature range. Both parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. The RG2012V-3481-P-T1 is supplied in Tape & Reel packaging, suitable for automated assembly processes.

PLTT0805Z3481QGT5 (Vishay Dale Thin Film - Alternative)

The PLTT0805Z3481QGT5 is an alternative substitute manufactured by Vishay Dale Thin Film. This component maintains electrical equivalence with 3.48 kOhms resistance and ±0.02% tolerance. The primary differences are: (1) power rating of 0.25W (1/4W) versus 0.125W on the original part, providing increased thermal margin; (2) temperature coefficient of ±5ppm/°C, matching the Susumu upgrade; (3) extended operating temperature range to -55°C ~ 215°C; (4) physical dimensions of 0.080" L x 0.050" W (2.03mm x 1.27mm) with maximum seated height of 0.033" (0.84mm), compared to 0.079" L x 0.049" W (2.00mm x 1.25mm) and 0.020" height on the original. The PLTT0805Z3481QGT5 is active in production with 897 units in stock and maintains ROHS3 compliance and MSL 1 rating. This component is suitable for applications requiring higher power dissipation capability or extended temperature operation.

Frequently Asked Questions (FAQ)

Q: Can the RG2012V-3481-P-T1 be used as a direct replacement for the RG2012P-3481-P-T1?

A: Yes. Both components share identical electrical specifications (3.48 kOhms, ±0.02% tolerance, 0.125W power rating) and mechanical compatibility (0805 package). The RG2012V-3481-P-T1 is the active production equivalent with improved temperature coefficient performance.

Q: What are the key differences between the RG2012V-3481-P-T1 and PLTT0805Z3481QGT5?

A: The primary differences are: (1) manufacturer (Susumu versus Vishay Dale); (2) power rating (0.125W versus 0.25W); (3) physical dimensions and height; (4) operating temperature range (-55°C ~ 155°C versus -55°C ~ 215°C). Both maintain 3.48 kOhms resistance, ±0.02% tolerance, and ±5ppm/°C temperature coefficient.

Q: Is the higher power rating of the PLTT0805Z3481QGT5 a concern for direct substitution?

A: No. A higher power rating does not create compatibility issues. The 0.25W rating of the PLTT0805Z3481QGT5 provides additional thermal margin and is suitable for applications originally designed for 0.125W components.

Q: Will the physical dimension differences of the PLTT0805Z3481QGT5 affect PCB layout?

A: The PLTT0805Z3481QGT5 dimensions (2.03mm x 1.27mm) are within the 0805 package specification tolerance and are compatible with standard 0805 footprints. The increased seated height (0.033" versus 0.020") should be verified against clearance requirements in high-density assemblies.

Q: Are both substitute parts AEC-Q200 qualified?

A: The RG2012V-3481-P-T1 carries AEC-Q200 automotive qualification. The PLTT0805Z3481QGT5 does not list AEC-Q200 rating in the provided specifications. For automotive applications requiring AEC-Q200 compliance, the RG2012V-3481-P-T1 is the appropriate selection.

Q: What is the significance of the temperature coefficient difference between the original part and substitutes?

A: The original RG2012P-3481-P-T1 has a temperature coefficient of ±25ppm/°C, while both substitutes offer ±5ppm/°C. This means the substitute parts exhibit superior resistance stability across temperature variations, resulting in more predictable circuit performance over the operating temperature range.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both the RG2012V-3481-P-T1 and PLTT0805Z3481QGT5 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the original part.