RG2012N-1742-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1742-C-T5 is a 17.4 kOhms ±0.25% 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 coating with automotive AEC-Q200 qualification. The part is currently obsolete, with 759 units available in stock. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

RG2012N-1742-C-T5

SusumuIn Stock: 809RG2012N-1742-C-T5 Datasheet

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RG2012N-1742-B-T5

SusumuIn Stock: 1027RG2012N-1742-B-T5 Datasheet

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RG2012N-1742-W-T1

SusumuIn Stock: 1083RG2012N-1742-W-T1 Datasheet

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RG2012N-1742-W-T5

SusumuIn Stock: 808RG2012N-1742-W-T5 Datasheet

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TNPW080517K4BYEA

Vishay DaleIn Stock: 1102TNPW080517K4BYEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-1742-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 17.4 kOhms (exact match required)
• Package type: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±10ppm/°C (exact match required)
• Automotive AEC-Q200 rating (exact match required)
• RoHS3 compliance (exact match required)

Allowable Variation Parameters:

• Tolerance: Can be equal to or tighter (lower) than ±0.25%
• Power rating: Can be equal to or higher than 0.125W
• Operating temperature range: Can be equal to or wider than -55°C ~ 155°C
• Packaging format: Tape & Reel (TR) acceptable as functional equivalent to bulk packaging

All substitute parts listed maintain identical resistance, package, composition, temperature coefficient, and automotive qualification. Tolerance and power rating improvements represent upgrades that maintain backward compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series):

The RG2012N-1742-B-T5, RG2012N-1742-W-T1, and RG2012N-1742-W-T5 are direct functional equivalents manufactured by Susumu. All three parts are currently active products with superior or equal tolerance specifications compared to the obsolete RG2012N-1742-C-T5. The RG2012N-1742-B-T5 offers ±0.1% tolerance, while both W-series variants (RG2012N-1742-W-T1 and RG2012N-1742-W-T5) provide ±0.05% tolerance. These tighter tolerances represent performance improvements while maintaining identical electrical and mechanical characteristics. All Susumu substitutes maintain the same power rating, package, and automotive qualification.

Cross-Manufacturer Substitute (Vishay Dale):

The TNPW080517K4BYEA from Vishay Dale is a qualified alternative from a different manufacturer. This part maintains identical resistance, tolerance (±0.1%), package, composition, and temperature coefficient. The TNPW080517K4BYEA provides an increased power rating of 0.26W and an extended operating temperature range to -55°C ~ 175°C. Both features represent design margin improvements. The part carries AEC-Q200 automotive qualification and includes moisture-resistant coating in addition to anti-sulfur protection.

Selection Criteria:

For applications requiring the original ±0.25% tolerance specification, the RG2012N-1742-B-T5 provides the closest match with improved tolerance. For applications where tighter tolerance is beneficial, the RG2012N-1742-W-T1 or RG2012N-1742-W-T5 are preferred. The TNPW080517K4BYEA is suitable when higher power dissipation capability or extended temperature range is required. All substitute parts maintain full compliance with automotive AEC-Q200 standards and RoHS3 requirements.

Frequently Asked Questions (FAQ)

Q: Can the RG2012N-1742-B-T5 be used as a direct replacement for the RG2012N-1742-C-T5?

A: Yes. The RG2012N-1742-B-T5 is a direct functional replacement. Both parts share identical resistance (17.4 kOhms), package (0805), power rating (0.125W), composition (thin film), temperature coefficient (±10ppm/°C), and automotive AEC-Q200 qualification. The RG2012N-1742-B-T5 features improved tolerance (±0.1% versus ±0.25%), which represents a performance upgrade while maintaining backward compatibility.

Q: What is the difference between the RG2012N-1742-W-T1 and RG2012N-1742-W-T5?

A: Both parts are identical in electrical and mechanical specifications. The difference lies in packaging format: RG2012N-1742-W-T1 uses Tape & Reel (TR) packaging with one reel configuration, while RG2012N-1742-W-T5 uses Tape & Reel (TR) packaging with a different reel configuration. Both provide ±0.05% tolerance and are functionally equivalent for circuit design purposes.

Q: Is the TNPW080517K4BYEA from Vishay Dale compatible with the original Susumu part?

A: Yes. The TNPW080517K4BYEA is compatible for applications requiring the same 17.4 kOhms resistance and 0805 package. The part maintains identical temperature coefficient (±10ppm/°C), thin film composition, and AEC-Q200 automotive qualification. The TNPW080517K4BYEA offers higher power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C), making it suitable for designs requiring additional thermal margin.

Q: Why is the original RG2012N-1742-C-T5 marked as obsolete?

A: The RG2012N-1742-C-T5 is obsolete due to manufacturer discontinuation. All listed substitute parts are currently active products from either Susumu or Vishay Dale, ensuring long-term availability and supply chain continuity.

Q: Can I use a substitute part with tighter tolerance (±0.05% or ±0.1%) in place of the ±0.25% original?

A: Yes. Tighter tolerance specifications are backward compatible with designs requiring ±0.25% tolerance. A component with ±0.05% or ±0.1% tolerance will meet or exceed the original specification requirements and can be used as a direct replacement without circuit redesign.

Q: Are all substitute parts RoHS3 compliant and AEC-Q200 qualified?

A: Yes. All substitute parts listed (RG2012N-1742-B-T5, RG2012N-1742-W-T1, RG2012N-1742-W-T5, and TNPW080517K4BYEA) are RoHS3 compliant and carry AEC-Q200 automotive qualification, matching the compliance profile of the original part.

Q: What is the significance of the 0805 package designation?

A: The 0805 package (2012 Metric) is a standardized surface-mount resistor package measuring 2.00mm length by 1.25mm width. All substitute parts use this identical package, ensuring mechanical compatibility with existing printed circuit board layouts and assembly equipment.