RG2012N-1242-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012N-1242-C-T5 is a 12.4 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and anti-sulfur construction. The part is currently obsolete, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility while offering improved specifications or active product status.

Substiute Parts

RG2012N-1242-C-T5

SusumuIn Stock: 926RG2012N-1242-C-T5 Datasheet

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RG2012N-1242-B-T5

SusumuIn Stock: 1137RG2012N-1242-B-T5 Datasheet

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RG2012N-1242-W-T1

SusumuIn Stock: 780RG2012N-1242-W-T1 Datasheet

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RG2012N-1242-W-T5

SusumuIn Stock: 767RG2012N-1242-W-T5 Datasheet

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TNPW080512K4BYEA

Vishay DaleIn Stock: 913TNPW080512K4BYEA Datasheet

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TNPW080512K4BYEN

Vishay DaleIn Stock: 1067TNPW080512K4BYEN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RG2012N-1242-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 12.4 kOhms (exact match required)
• Package type: 0805 (2012 Metric) (exact match required)
• Power rating: Minimum 0.125W (1/8W) or higher
• Composition: Thin Film
• Temperature coefficient: ±10ppm/°C
• Automotive rating: AEC-Q200
• RoHS compliance: ROHS3 Compliant

Substitution Criteria: Tolerance can be improved (tighter) from ±0.25% to ±0.1% or ±0.05% without affecting circuit compatibility. Power rating can be increased from 0.125W to 0.26W. Operating temperature range can be extended. Packaging format (Tape & Reel) does not affect electrical compatibility. Manufacturer can vary while maintaining equivalent electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series):

RG2012N-1242-B-T5 and RG2012N-1242-W-T1/W-T5 are direct substitutes from the same manufacturer series. These parts maintain identical package geometry, thermal characteristics, and automotive qualification. RG2012N-1242-B-T5 offers improved tolerance (±0.1%) while maintaining the same power rating. RG2012N-1242-W-T1 and RG2012N-1242-W-T5 provide the highest tolerance specification (±0.05%) within the Susumu RG series. All three Susumu alternatives are active products with current manufacturing status.

Secondary Substitutes (Vishay Dale TNPW Series):

TNPW080512K4BYEA and TNPW080512K4BYEN are functionally equivalent alternatives from Vishay Dale. These components offer enhanced power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Tolerance specification is ±0.1%. Both parts include moisture-resistant construction in addition to anti-sulfur properties. Physical dimensions are compatible with 0805 package requirements, though maximum seated height is slightly increased (0.022" versus 0.020"). Both are active products.

Selection Criteria:

For applications requiring the original tolerance specification of ±0.25%, RG2012N-1242-B-T5 provides the closest match with improved tolerance. For applications requiring maximum tolerance precision, RG2012N-1242-W-T1 or RG2012N-1242-W-T5 are optimal. For applications with higher power dissipation requirements or extended temperature operation, TNPW080512K4BYEA or TNPW080512K4BYEN are appropriate. All substitutes maintain AEC-Q200 automotive qualification and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can RG2012N-1242-B-T5 be used as a direct replacement for RG2012N-1242-C-T5?

A: Yes. RG2012N-1242-B-T5 is a direct electrical and mechanical substitute. It maintains identical resistance value (12.4 kOhms), package type (0805), power rating (0.125W), and operating temperature range (-55°C ~ 155°C). The tolerance is improved from ±0.25% to ±0.1%, which is compatible with all applications designed for the original part.

Q: What is the difference between RG2012N-1242-W-T1 and RG2012N-1242-W-T5?

A: Both parts are electrically identical with 12.4 kOhms resistance and ±0.05% tolerance. The difference is in packaging format: T1 and T5 designations refer to different tape reel specifications. Both are mechanically and electrically compatible with the original RG2012N-1242-C-T5.

Q: Can TNPW080512K4BYEA replace RG2012N-1242-C-T5 in all applications?

A: TNPW080512K4BYEA is electrically compatible with identical resistance (12.4 kOhms) and tolerance (±0.1%), package type (0805), and automotive rating (AEC-Q200). The increased power rating (0.26W versus 0.125W) and extended temperature range (-55°C ~ 175°C) are compatible with all applications designed for the original part. Physical height is slightly increased (0.022" versus 0.020"), which must be verified for PCB layout constraints.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the original RG2012N-1242-C-T5.

Q: What is the moisture sensitivity level for all these parts?

A: All parts, including the original and all substitutes, have Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

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

A: Yes. Tighter tolerance specifications are compatible with applications designed for looser tolerances. A part with ±0.1% tolerance will meet all requirements of a circuit designed for ±0.25% tolerance.

Q: Are there any package size differences between Susumu and Vishay Dale versions?

A: Both manufacturers use the 0805 (2012 Metric) package. Vishay Dale TNPW parts have a maximum seated height of 0.022" compared to 0.020" for Susumu RG parts. This 0.002" difference must be evaluated for PCB assembly clearance requirements.

Q: What is the temperature coefficient specification for all parts?

A: All parts, including the original and all substitutes, have a temperature coefficient of ±10ppm/°C, ensuring consistent performance across the operating temperature range.