RG2012P-1581-W-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-1581-W-T1 is a 1.58 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. The part is currently listed as obsolete, necessitating identification of active equivalent and substitute components from the Susumu RG series that maintain electrical and mechanical compatibility.

Substiute Parts

RG2012P-1581-W-T1

SusumuIn Stock: 1140RG2012P-1581-W-T1 Datasheet

Current PartRFQ

RG2012P-1581-W-T5

SusumuIn Stock: 1044RG2012P-1581-W-T5 Datasheet

DirectRFQ

RG2012N-1581-W-T1

SusumuIn Stock: 859RG2012N-1581-W-T1 Datasheet

UpgradeRFQ

RG2012V-1581-P-T1

SusumuIn Stock: 893RG2012V-1581-P-T1 Datasheet

UpgradeRFQ

RG2012V-1581-W-T1

SusumuIn Stock: 822RG2012V-1581-W-T1 Datasheet

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RG2012V-1581-W-T5

SusumuIn Stock: 836RG2012V-1581-W-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012P-1581-W-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.58 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 ~ 155°C
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Tolerance: ±0.05% or tighter (±0.02%)
• Temperature coefficient: ±25ppm/°C, ±10ppm/°C, or ±5ppm/°C
• Packaging format: Bulk or Tape & Reel (TR)
• Product status: Active substitutes preferred over obsolete

All identified substitute parts maintain identical resistance, package, power rating, composition, and environmental specifications. Variations in tolerance and temperature coefficient represent performance enhancements or alternative configurations within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Identical Specifications): RG2012P-1581-W-T5 is the direct active equivalent to RG2012P-1581-W-T1. Both parts share identical electrical specifications (1.58 kOhms ±0.05%, ±25ppm/°C temperature coefficient). The primary difference is packaging format: RG2012P-1581-W-T5 is supplied in Tape & Reel format, whereas the original part was supplied in bulk. This part is active and maintains full AEC-Q200 automotive qualification and ROHS3 compliance.

Enhanced Performance Alternatives: RG2012N-1581-W-T1, RG2012V-1581-W-T1, and RG2012V-1581-W-T5 offer improved temperature coefficient performance (±10ppm/°C and ±5ppm/°C respectively) while maintaining the ±0.05% tolerance and all other critical specifications. These parts are active and suitable for applications requiring superior temperature stability.

RG2012V-1581-P-T1 provides the highest precision option with ±0.02% tolerance and ±5ppm/°C temperature coefficient, meeting stringent accuracy requirements in precision measurement and calibration circuits.

All substitute parts maintain AEC-Q200 automotive qualification, ROHS3 compliance, and identical mechanical dimensions (0805 package, 2.00mm × 1.25mm × 0.50mm maximum height).

Frequently Asked Questions (FAQ)

Q: Can RG2012P-1581-W-T5 be used as a direct replacement for RG2012P-1581-W-T1?

A: Yes. RG2012P-1581-W-T5 is electrically and mechanically identical to RG2012P-1581-W-T1. The only difference is the packaging format (Tape & Reel versus bulk). Both parts have identical resistance (1.58 kOhms), tolerance (±0.05%), power rating (0.125W), temperature coefficient (±25ppm/°C), and package dimensions (0805).

Q: What is the difference between the RG2012P, RG2012N, and RG2012V series designations?

A: The series designation indicates the temperature coefficient specification. RG2012P has ±25ppm/°C, RG2012N has ±10ppm/°C, and RG2012V has ±5ppm/°C. All other specifications remain identical for parts with the same resistance and tolerance values.

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification and are suitable for automotive and high-reliability applications.

Q: What does the "T1" and "T5" designation mean in the part number?

A: The suffix indicates the packaging format. T1 denotes bulk packaging, while T5 denotes Tape & Reel (TR) packaging. The electrical specifications are identical between these formats.

Q: Can RG2012V-1581-P-T1 be used in place of RG2012P-1581-W-T1?

A: Yes. RG2012V-1581-P-T1 is a compatible substitute with enhanced specifications. It maintains the same 1.58 kOhms resistance and 0.125W power rating in the 0805 package. The improvements include tighter tolerance (±0.02% versus ±0.05%) and superior temperature coefficient (±5ppm/°C versus ±25ppm/°C). These enhancements provide better performance in temperature-sensitive applications without compromising compatibility.

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.

Q: What is the inventory status of substitute parts?

A: RG2012P-1581-W-T5 has 959 units in stock. RG2012N-1581-W-T1 has 775 units. RG2012V-1581-P-T1 has 871 units. RG2012V-1581-W-T1 has 738 units. RG2012V-1581-W-T5 has 741 units. All substitute parts are active and available.