RG2012P-4221-W-T1 Equivalent & Substitute Parts

Part Overview

The Susumu RG2012P-4221-W-T1 is a 4.22 kOhms ±0.05% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur construction and automotive AEC-Q200 qualification, suitable for high-reliability applications requiring precision resistance values across extended temperature ranges (-55°C to 155°C).

The RG2012P-4221-W-T1 is classified as obsolete. Direct substitutes and upgraded alternatives are available from the same manufacturer series, offering improved specifications or active product status while maintaining electrical and mechanical compatibility.

Substiute Parts

RG2012P-4221-W-T1

SusumuIn Stock: 1161RG2012P-4221-W-T1 Datasheet

Current PartRFQ

RG2012P-4221-W-T5

SusumuIn Stock: 998RG2012P-4221-W-T5 Datasheet

DirectRFQ

RG2012N-4221-W-T1

SusumuIn Stock: 1077RG2012N-4221-W-T1 Datasheet

UpgradeRFQ

RG2012V-4221-P-T1

SusumuIn Stock: 744RG2012V-4221-P-T1 Datasheet

UpgradeRFQ

RG2012V-4221-W-T1

SusumuIn Stock: 750RG2012V-4221-W-T1 Datasheet

UpgradeRFQ

RG2012V-4221-W-T5

SusumuIn Stock: 1074RG2012V-4221-W-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012P-4221-W-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 4.22 kOhms
• Package / Case: 0805 (2012 Metric)
• Power rating: 0.125W (1/8W)
• Composition: Thin Film
• Features: Anti-Sulfur, Automotive AEC-Q200
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (±0.05% or better)
• Temperature coefficient: May be equal or lower (±25ppm/°C or better)
• Packaging format: Tape & Reel (TR) acceptable as functional equivalent
• Product status: Active status preferred for obsolete parts

All substitute parts listed maintain identical electrical performance within the specified operating conditions and are mechanically interchangeable in standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Direct Functional Equivalent (Same Specifications): RG2012P-4221-W-T5 provides identical electrical specifications to the obsolete RG2012P-4221-W-T1, with the primary difference being active product status and Tape & Reel packaging format. This part is the direct replacement for applications requiring no specification changes.

Upgraded Alternatives (Enhanced Performance): The RG2012N-4221-W-T1, RG2012V-4221-W-T1, RG2012V-4221-W-T5, and RG2012V-4221-P-T1 offer improved temperature coefficient specifications while maintaining all other electrical and mechanical parameters. These parts are suitable for applications where tighter temperature stability is beneficial.

RG2012V-4221-P-T1 provides the tightest tolerance specification (±0.02%) among available substitutes, appropriate for precision measurement or calibration circuits.

All substitute parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with existing quality and reliability requirements.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-4221-W-T5 be used as a direct replacement for RG2012P-4221-W-T1?

A: Yes. RG2012P-4221-W-T5 is electrically and mechanically identical to RG2012P-4221-W-T1. The primary difference is packaging format (Tape & Reel versus bulk) and active product status. Both parts share identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range.

Q: What is the difference between the RG2012N and RG2012V series variants?

A: The RG2012N series has a temperature coefficient of ±10ppm/°C, while the RG2012V series has ±5ppm/°C. Both maintain the same 4.22 kOhms resistance, ±0.05% tolerance, and 0.125W power rating. The RG2012V series provides superior temperature stability for applications sensitive to thermal drift.

Q: Is RG2012V-4221-P-T1 compatible with circuits designed for RG2012P-4221-W-T1?

A: Yes. RG2012V-4221-P-T1 is mechanically and electrically compatible. It features a tighter tolerance specification (±0.02% versus ±0.05%) and lower temperature coefficient (±5ppm/°C versus ±25ppm/°C), making it suitable for precision applications. The improved specifications do not create incompatibility with existing designs.

Q: Does packaging format (Tape & Reel versus bulk) affect circuit performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Tape & Reel and bulk packaging contain identical components with identical electrical and mechanical specifications. Selection between formats depends on manufacturing process requirements and inventory management practices.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating, maintaining consistency with the original part's quality and reliability certifications.

Q: Can RG2012V-4221-P-T1 be used in applications where RG2012P-4221-W-T1 tolerance is specified?

A: Yes. RG2012V-4221-P-T1 has a tighter tolerance (±0.02%) than the specified ±0.05%, making it suitable for any application requiring ±0.05% or looser tolerance. Tighter tolerance specifications do not create circuit incompatibility.