RG2012P-181-W-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-181-W-T1 is a 180 Ohm ±0.05% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. Manufactured by Susumu, this component features anti-sulfur coating 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 that maintain electrical and mechanical compatibility while meeting application requirements.

Substiute Parts

RG2012P-181-W-T1

SusumuIn Stock: 1001RG2012P-181-W-T1 Datasheet

Current PartRFQ

RG2012N-181-W-T1

SusumuIn Stock: 1202RG2012N-181-W-T1 Datasheet

DirectRFQ

RG2012P-181-W-T5

SusumuIn Stock: 1169RG2012P-181-W-T5 Datasheet

DirectRFQ

RG2012N-181-W-T5

SusumuIn Stock: 1002RG2012N-181-W-T5 Datasheet

UpgradeRFQ

RG2012V-181-P-T1

SusumuIn Stock: 957RG2012V-181-P-T1 Datasheet

UpgradeRFQ

RG2012V-181-W-T1

SusumuIn Stock: 992RG2012V-181-W-T1 Datasheet

UpgradeRFQ

RG2012V-181-W-T5

SusumuIn Stock: 735RG2012V-181-W-T5 Datasheet

UpgradeRFQ

RT0805WRB07180RL

YAGEOIn Stock: 894RT0805WRB07180RL Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012P-181-W-T1 is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 180 Ohms
• Tolerance: ±0.05% or tighter
• Power rating: 0.125W (1/8W) minimum
• Package: 0805 (2012 Metric)
• Composition: Thin Film
• Operating temperature range: -55°C to 155°C minimum
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Substitution Categories:

Direct Substitutes (Identical Electrical Specifications): Parts maintaining the exact 180 Ohm resistance, ±0.05% tolerance, 0.125W power rating, and 0805 package with identical or superior temperature coefficient performance.

Upgrade Substitutes (Enhanced Performance): Parts with tighter tolerance (±0.02%) or improved temperature coefficient (±5ppm/°C or ±10ppm/°C versus ±25ppm/°C) while maintaining all other critical parameters.

Cross-Manufacturer Substitutes: Non-Susumu components meeting identical electrical and mechanical specifications with equivalent automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation for Direct Replacement:

RG2012N-181-W-T1 (Susumu) or RG2012P-181-W-T5 (Susumu) are the preferred direct substitutes. Both maintain the 180 Ohm ±0.05% specification with 0.125W power rating in 0805 package. RG2012N-181-W-T1 offers improved temperature coefficient performance (±10ppm/°C) while RG2012P-181-W-T5 maintains the original ±25ppm/°C specification. Both are active products with ROHS3 compliance and AEC-Q200 automotive qualification.

Enhanced Performance Alternatives:

RG2012V-181-W-T1 and RG2012V-181-W-T5 provide superior temperature stability with ±5ppm/°C coefficient while maintaining all other electrical and mechanical parameters. These components are suitable for applications requiring tighter thermal performance.

RG2012V-181-P-T1 offers the highest precision with ±0.02% tolerance and ±5ppm/°C temperature coefficient, appropriate for precision measurement and calibration circuits.

Cross-Manufacturer Option:

RT0805WRB07180RL (YAGEO) provides electrical equivalence with ±0.05% tolerance and ±10ppm/°C temperature coefficient. This component is suitable where multi-source qualification is required. Note: This part does not carry explicit AEC-Q200 automotive rating or anti-sulfur feature designation in the provided specifications.

Packaging Consideration:

The original RG2012P-181-W-T1 is supplied in bulk packaging. All active substitutes are supplied in Tape & Reel format, which is standard for production assembly. Bulk packaging availability should be confirmed with the supplier if required for specific assembly processes.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-181-W-T1 be used as a direct replacement for RG2012P-181-W-T1?

A: Yes. Both parts share identical resistance (180 Ohm), tolerance (±0.05%), power rating (0.125W), and 0805 package. RG2012N-181-W-T1 is an active product with improved temperature coefficient (±10ppm/°C versus ±25ppm/°C), making it functionally superior for direct substitution.

Q: What is the difference between RG2012P-181-W-T5 and RG2012N-181-W-T5?

A: Both parts are electrically identical with 180 Ohm ±0.05% resistance and 0.125W power rating. The primary difference is temperature coefficient: RG2012P-181-W-T5 has ±25ppm/°C while RG2012N-181-W-T5 has ±10ppm/°C. The "T5" designation indicates Tape & Reel packaging format.

Q: Are the RG2012V series parts suitable replacements?

A: Yes. RG2012V-181-W-T1 and RG2012V-181-W-T5 maintain the 180 Ohm ±0.05% specification with superior ±5ppm/°C temperature coefficient. These are upgrade substitutes appropriate for applications requiring enhanced thermal stability. RG2012V-181-P-T1 additionally provides ±0.02% tolerance for precision applications.

Q: Can RT0805WRB07180RL (YAGEO) be used in automotive applications?

A: RT0805WRB07180RL meets the electrical specifications (180 Ohm ±0.05%, 0.125W, 0805 package) and is ROHS3 compliant. However, the provided specifications do not indicate explicit AEC-Q200 automotive qualification or anti-sulfur coating. Verification of automotive suitability requirements should be performed before selection for safety-critical applications.

Q: What is the significance of the packaging format change from bulk to Tape & Reel?

A: The original RG2012P-181-W-T1 is supplied in bulk packaging. All active substitutes are supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly. Tape & Reel packaging is compatible with standard pick-and-place equipment. If bulk packaging is required, supplier availability should be confirmed.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), matching the environmental and moisture sensitivity specifications of the original component.

Q: What is the maximum height difference between the original part and substitutes?

A: The original RG2012P-181-W-T1 has a maximum seated height of 0.020" (0.50mm). All Susumu RG2012 series substitutes maintain this specification. The YAGEO RT0805WRB07180RL has a maximum seated height of 0.024" (0.60mm), which remains within standard 0805 package tolerances and is compatible with typical PCB assembly processes.