RG2012P-301-P-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-301-P-T1 is a 300 Ohms ±0.02% thin film chip resistor manufactured by Susumu in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation and features anti-sulfur coating with automotive AEC-Q200 qualification. The part operates across a temperature range of -55°C to 155°C with a temperature coefficient of ±25ppm/°C.

The RG2012P-301-P-T1 is currently classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing production requirements, design revisions, and long-term supply chain continuity. Active alternatives with identical or compatible electrical and mechanical specifications are available from both the original manufacturer and qualified alternative suppliers.

Substiute Parts

RG2012P-301-P-T1

SusumuIn Stock: 970RG2012P-301-P-T1 Datasheet

Current PartRFQ

RG2012V-301-P-T1

SusumuIn Stock: 1164RG2012V-301-P-T1 Datasheet

UpgradeRFQ

TNPU0805300RAZEN00

Vishay DaleIn Stock: 970TNPU0805300RAZEN00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RG2012P-301-P-T1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 300 Ohms
• Package / Case: 0805 (2012 Metric)
• Power rating: 0.125W (1/8W)
• Composition: Thin Film
• Automotive qualification: AEC-Q200
• Anti-sulfur feature

Allowable Variation Parameters:

• Tolerance: The original part specifies ±0.02%. Substitute parts with equal or tighter tolerance (lower percentage value) are functionally compatible.
• Temperature coefficient: The original part specifies ±25ppm/°C. Substitute parts with equal or lower temperature coefficient values are functionally compatible.
• Operating temperature range: The original part specifies -55°C ~ 155°C. Substitute parts with equal or wider operating ranges are functionally compatible.
• Product status: Active alternatives are preferred over obsolete parts for supply continuity.
• Packaging format: Both cut tape and tape & reel formats are mechanically compatible within the 0805 package specification.

Two substitute parts meet these criteria and are classified as follows:

Upgrade Substitute: RG2012V-301-P-T1 (Susumu) — Same manufacturer, active product status, improved temperature coefficient (±5ppm/°C vs. ±25ppm/°C), identical electrical and mechanical specifications.

Alternative Substitute: TNPU0805300RAZEN00 (Vishay Dale) — Different manufacturer, active product status, compatible tolerance (±0.05% vs. ±0.02%), compatible temperature coefficient (±5ppm/°C), identical package and power rating, with moisture-resistant feature addition.

Parameter Comparison

Engineering Selection Recommendations

RG2012V-301-P-T1 (Susumu) — Recommended Primary Substitute

The RG2012V-301-P-T1 is the optimal substitute for the obsolete RG2012P-301-P-T1. Both parts are manufactured by Susumu and share identical electrical specifications (300 Ohms, ±0.02% tolerance, 0.125W power rating) and mechanical dimensions (0805 package). The RG2012V-301-P-T1 is currently in active production status with 1106 units in stock, ensuring supply continuity. The improved temperature coefficient (±5ppm/°C versus ±25ppm/°C) provides enhanced performance stability across the full operating temperature range of -55°C to 155°C. Both parts carry AEC-Q200 automotive qualification, anti-sulfur coating, ROHS3 compliance, and MSL 1 rating. The primary difference is packaging format: the RG2012V-301-P-T1 is supplied in tape & reel format, which is standard for automated assembly operations.

TNPU0805300RAZEN00 (Vishay Dale) — Alternative Substitute

The TNPU0805300RAZEN00 is a qualified alternative when supply of the Susumu RG2012V-301-P-T1 is constrained. This Vishay Dale component maintains the same 300 Ohms resistance, 0.125W power rating, and 0805 package format. The tolerance specification of ±0.05% is wider than the original ±0.02% but remains within acceptable precision for most applications. The temperature coefficient of ±5ppm/°C matches the upgraded Susumu part and exceeds the original specification. The operating temperature range extends to -55°C ~ 125°C, which is 30°C narrower than the original part's upper limit of 155°C; this constraint applies only to applications requiring operation above 125°C. The TNPU0805300RAZEN00 includes moisture-resistant coating in addition to anti-sulfur protection, and carries identical AEC-Q200 automotive qualification and ROHS3 compliance. The maximum seated height is 0.022" (0.55mm) compared to 0.020" (0.50mm) for the original part; this 0.002" difference is negligible for standard PCB assembly and does not affect electrical performance. The part is currently in active production with 954 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the RG2012V-301-P-T1 be used as a direct replacement for the RG2012P-301-P-T1?

A: Yes. Both parts are manufactured by Susumu with identical resistance (300 Ohms), tolerance (±0.02%), power rating (0.125W), package (0805), composition (thin film), and automotive qualification (AEC-Q200). The RG2012V-301-P-T1 is the active production equivalent and is fully compatible for all applications. The primary difference is packaging format: the RG2012V-301-P-T1 is supplied in tape & reel format, which is standard for automated assembly.

Q: What is the difference between the RG2012V-301-P-T1 and TNPU0805300RAZEN00?

A: Both parts share the same 300 Ohms resistance, 0.125W power rating, 0805 package, and AEC-Q200 automotive qualification. The key differences are: (1) Manufacturer — Susumu versus Vishay Dale; (2) Tolerance — ±0.02% versus ±0.05%; (3) Operating temperature range — -55°C ~ 155°C versus -55°C ~ 125°C; (4) Maximum seated height — 0.020" versus 0.022"; (5) Additional feature — the Vishay Dale part includes moisture-resistant coating. The Susumu RG2012V-301-P-T1 is preferred when the original tolerance and full temperature range are required.

Q: Is the TNPU0805300RAZEN00 suitable for applications requiring the full -55°C ~ 155°C temperature range?

A: No. The TNPU0805300RAZEN00 is rated for -55°C ~ 125°C operation. Applications requiring operation above 125°C must use the RG2012V-301-P-T1 or equivalent parts with -55°C ~ 155°C ratings. For applications operating within -55°C ~ 125°C, the TNPU0805300RAZEN00 is fully qualified.

Q: Does the 0.002" difference in seated height between the RG2012V-301-P-T1 and TNPU0805300RAZEN00 affect PCB assembly?

A: No. The maximum seated height difference of 0.002" (0.50mm versus 0.55mm) is within standard PCB assembly tolerances and does not affect component placement, solder reflow, or electrical performance. Both parts are compatible with standard 0805 package assembly processes.

Q: Are both substitute parts AEC-Q200 qualified?

A: Yes. Both the RG2012V-301-P-T1 and TNPU0805300RAZEN00 carry AEC-Q200 automotive qualification, anti-sulfur coating, ROHS3 compliance, and MSL 1 (unlimited) moisture sensitivity rating. Both parts are suitable for automotive and industrial applications.

Q: Why does the RG2012P-301-P-T1 show as obsolete?

A: The RG2012P-301-P-T1 is no longer in active production. The RG2012V-301-P-T1 is the current production equivalent from Susumu with identical specifications and improved temperature coefficient performance. For new designs and ongoing production, the RG2012V-301-P-T1 is the recommended part selection.

Q: What is the difference in temperature coefficient between the original and substitute parts?

A: The RG2012P-301-P-T1 has a temperature coefficient of ±25ppm/°C. Both substitute parts (RG2012V-301-P-T1 and TNPU0805300RAZEN00) have a temperature coefficient of ±5ppm/°C, which is five times more stable. This improvement provides better resistance stability across temperature variations and is beneficial for precision applications.

Q: Can I mix RG2012V-301-P-T1 and TNPU0805300RAZEN00 parts in the same production run?

A: Both parts are mechanically and electrically compatible within the 0805 package format and can be used interchangeably in applications operating within the -55°C ~ 125°C range. However, for applications requiring the full -55°C ~ 155°C temperature range, only the RG2012V-301-P-T1 is qualified. For consistency and traceability, using a single part number per design is recommended.