RG2012P-4123-B-T1 Equivalent & Substitute Parts

Part Overview

The RG2012P-4123-B-T1 is a 412 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-precision applications requiring stable resistance values across extended temperature ranges from -55°C to 155°C.

The RG2012P-4123-B-T1 is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with identical or enhanced electrical and mechanical specifications, enabling direct replacement in production and repair applications.

Substiute Parts

RG2012P-4123-B-T1

SusumuIn Stock: 1191RG2012P-4123-B-T1 Datasheet

Current PartRFQ

RG2012P-4123-B-T5

SusumuIn Stock: 5328RG2012P-4123-B-T5 Datasheet

DirectRFQ

RG2012N-4123-B-T5

SusumuIn Stock: 973RG2012N-4123-B-T5 Datasheet

UpgradeRFQ

RG2012N-4123-W-T1

SusumuIn Stock: 726RG2012N-4123-W-T1 Datasheet

UpgradeRFQ

RG2012P-4123-W-T5

SusumuIn Stock: 1180RG2012P-4123-W-T5 Datasheet

UpgradeRFQ

5-2176094-2

TE Connectivity Passive ProductIn Stock: 15235-2176094-2 Datasheet

DirectRFQ

ERA-6AEB4123V

Panasonic Electronic ComponentsIn Stock: 1117ERA-6AEB4123V Datasheet

DirectRFQ

RT0805BRD07412KL

YAGEOIn Stock: 888RT0805BRD07412KL Datasheet

DirectRFQ

TNPW0805412KBEEA

Vishay DaleIn Stock: 1168TNPW0805412KBEEA Datasheet

DirectRFQ

TNPW0805412KBEEN

Vishay DaleIn Stock: 1116TNPW0805412KBEEN Datasheet

DirectRFQ

RP73D2A412KBTDF

TE Connectivity Passive ProductIn Stock: 878RP73D2A412KBTDF Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RG2012P-4123-B-T1 are classified into two categories based on electrical and mechanical compatibility:

Direct Substitutes maintain identical electrical specifications: 412 kOhms resistance, ±0.1% tolerance, 0.125W power rating, and 0805 package. These parts are interchangeable without circuit redesign and include RG2012P-4123-B-T5 (Susumu, active status), ERA-6AEB4123V (Panasonic), RT0805BRD07412KL (YAGEO), and RP73D2A412KBTDF (TE Connectivity).

Upgrade Substitutes provide enhanced specifications while maintaining core electrical parameters. These include:

• RG2012N-4123-B-T5: Improved temperature coefficient (±10ppm/°C vs. ±25ppm/°C)
• RG2012N-4123-W-T1 and RG2012P-4123-W-T5: Enhanced tolerance (±0.05% vs. ±0.1%)
• TNPW0805412KBEEA and TNPW0805412KBEEN: Higher power rating (0.26W vs. 0.125W) with extended temperature range to 175°C

Cross-Manufacturer Alternatives with modified power ratings include 5-2176094-2 (TE Connectivity, 0.25W rating).

Substitution eligibility is determined by: resistance value, tolerance specification, package type, composition (thin film), and operating temperature range compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Direct Substitute: RG2012P-4123-B-T5 (Susumu) is the recommended replacement for the obsolete RG2012P-4123-B-T1. Both parts share identical electrical specifications and packaging. The RG2012P-4123-B-T5 is in active production status with higher inventory availability (5231 units) and maintains AEC-Q200 automotive qualification and anti-sulfur coating.

Cross-Manufacturer Direct Substitutes: ERA-6AEB4123V (Panasonic) and RT0805BRD07412KL (YAGEO) provide equivalent electrical and mechanical performance with active product status. Both maintain the 412 kOhms ±0.1% specification, 0.125W power rating, and 0805 package. ERA-6AEB4123V carries AEC-Q200 certification; RT0805BRD07412KL does not.

Enhanced Tolerance Alternatives: RG2012N-4123-W-T1 and RG2012P-4123-W-T5 offer ±0.05% tolerance (half the original specification) while maintaining all other parameters. These are suitable for applications requiring tighter resistance tolerances.

Improved Temperature Stability: RG2012N-4123-B-T5 and RP73D2A412KBTDF provide reduced temperature coefficients (±10ppm/°C and ±15ppm/°C respectively) compared to the original ±25ppm/°C specification, beneficial for precision analog circuits.

Higher Power Rating Option: TNPW0805412KBEEA and TNPW0805412KBEEN (Vishay Dale) provide 0.26W power rating with extended operating temperature to 175°C, suitable for applications with elevated thermal requirements or higher dissipation margins.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity). AEC-Q200 automotive qualification is present in Susumu RG series, Panasonic ERA-6A series, and Vishay TNPW series parts. Selection should account for automotive qualification requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-4123-B-T5 directly replace RG2012P-4123-B-T1 without circuit modification?

A: Yes. Both parts share identical electrical specifications (412 kOhms ±0.1%, 0.125W), package type (0805), composition (thin film), and operating temperature range (-55°C to 155°C). The primary difference is product status (active vs. obsolete) and packaging format. RG2012P-4123-B-T5 is supplied in Tape & Reel format.

Q: What is the difference between RG2012P and RG2012N series parts?

A: The RG2012N series provides improved temperature coefficient specifications. RG2012N parts feature ±10ppm/°C or ±15ppm/°C temperature coefficients compared to ±25ppm/°C in RG2012P parts. This results in better resistance stability across temperature variations, beneficial for precision measurement and analog signal conditioning circuits.

Q: Are Vishay TNPW0805412KBEEA and TNPW0805412KBEEN interchangeable?

A: Yes. Both parts are electrically and mechanically identical with 412 kOhms ±0.1% resistance, 0.26W power rating, and 0805 package. The difference lies in packaging designation (BEEA vs. BEEN), which reflects different tape and reel configurations from the manufacturer.

Q: Can I use TNPW0805412KBEEA in place of RG2012P-4123-B-T1?

A: Electrical substitution is valid. Both maintain 412 kOhms ±0.1% resistance, thin film composition, and -55°C to 155°C operating range. However, TNPW0805412KBEEA provides higher power rating (0.26W vs. 0.125W) and extended temperature capability to 175°C. Physical dimensions differ slightly (height 0.022" vs. 0.020"), which may affect PCB layout in space-constrained designs. Verify mechanical clearance before implementation.

Q: Does RT0805BRD07412KL have automotive qualification?

A: No. RT0805BRD07412KL (YAGEO) does not carry AEC-Q200 certification. For applications requiring automotive-grade components, select from Susumu RG series, Panasonic ERA-6A series, or Vishay TNPW series alternatives, all of which maintain AEC-Q200 qualification.

Q: What is the advantage of RG2012N-4123-W-T1 over RG2012P-4123-B-T1?

A: RG2012N-4123-W-T1 provides two enhancements: tolerance specification of ±0.05% (versus ±0.1%) and temperature coefficient of ±10ppm/°C (versus ±25ppm/°C). These improvements result in tighter resistance accuracy and better thermal stability, suitable for precision analog circuits, reference networks, and measurement instrumentation.

Q: Can I substitute 5-2176094-2 (0.25W) for the original 0.125W part?

A: Electrical substitution is valid for applications where power dissipation does not exceed 0.125W. The 5-2176094-2 provides higher power margin and thermal headroom. However, physical dimensions differ (height 0.026" vs. 0.020"), requiring verification of PCB layout compatibility. The part lacks AEC-Q200 certification, which may be a constraint in automotive applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited moisture sensitivity level), consistent with the original RG2012P-4123-B-T1 specification.

Q: Which substitute offers the best temperature stability?

A: RP73D2A412KBTDF (TE Connectivity) provides ±15ppm/°C temperature coefficient, the lowest among available substitutes. RG2012N series parts offer ±10ppm/°C. For applications requiring maximum thermal stability, RG2012N-4123-B-T5 or RG2012N-4123-W-T1 are recommended.