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RG2012P-1052-B-T1 Equivalent & Substitute Parts
Part Overview
The RG2012P-1052-B-T1 is a 10.5 kOhms ±0.1% 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 across -55°C to 155°C operating temperature range. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility while offering improved availability and product status.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 10.5 kOhms |
| Tolerance | ±0.1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thin Film |
| Temperature Coefficient | ±25ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Features | Anti-Sulfur, Automotive AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the RG2012P-1052-B-T1 is determined by the following critical parameters:
Primary Substitution Criteria:
- Resistance value: 10.5 kOhms (exact match required)
- Tolerance: ±0.1% or tighter (±0.05% acceptable as upgrade)
- Package: 0805 (2012 Metric) form factor
- Power rating: 0.125W minimum (higher ratings acceptable)
- Composition: Thin film technology
- Operating temperature range: Must encompass -55°C to 155°C or equivalent
Secondary Compatibility Factors:
- Temperature coefficient: ±25ppm/°C baseline (±10ppm/°C acceptable as upgrade)
- Automotive qualification: AEC-Q200 preferred for equivalent substitution
- Anti-sulfur feature: Preferred but not mandatory for direct substitution
- Packaging format: Tape & Reel (TR) standard for active parts
Substitute parts are grouped into two categories: direct equivalents (matching all primary criteria with active product status) and upgrades (enhanced specifications such as tighter tolerance or lower temperature coefficient).
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Temp Range (°C) | AEC-Q200 | Product Status | Height Max (mm) |
|---|---|---|---|---|---|---|---|---|---|
| RG2012P-1052-B-T1 | Susumu | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 155 | Yes | Obsolete | 0.50 |
| RG2012P-1052-B-T5 | Susumu | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 155 | Yes | Active | 0.50 |
| RG2012N-1052-B-T5 | Susumu | 10.5k | ±0.1% | 0.125 | ±10 | -55 ~ 155 | Yes | Active | 0.50 |
| RG2012N-1052-W-T1 | Susumu | 10.5k | ±0.05% | 0.125 | ±10 | -55 ~ 155 | Yes | Active | 0.50 |
| RG2012P-1052-W-T5 | Susumu | 10.5k | ±0.05% | 0.125 | ±25 | -55 ~ 155 | Yes | Active | 0.50 |
| ERA-6AEB1052V | Panasonic | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 155 | Yes | Active | 0.60 |
| MCU08050D1052BP100 | Vishay | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 125 | No | Active | 0.55 |
| MCU08050D1052BP500 | Vishay | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 125 | No | Active | 0.55 |
| RT0805BRD0710K5L | YAGEO | 10.5k | ±0.1% | 0.125 | ±25 | -55 ~ 155 | No | Active | 0.60 |
| TNPW080510K5BEEA | Vishay Dale | 10.5k | ±0.1% | 0.26 | ±25 | -55 ~ 175 | Yes | Active | 0.55 |
| 2176093-7 | TE Connectivity | 10.5k | ±0.1% | 0.25 | ±25 | -55 ~ 155 | No | Active | 0.65 |
Engineering Selection Recommendations
Direct Equivalent (Same Manufacturer - Susumu):
RG2012P-1052-B-T5 is the direct equivalent replacement for RG2012P-1052-B-T1. Both parts share identical electrical specifications (10.5 kOhms ±0.1%, 0.125W, ±25ppm/°C) and mechanical dimensions. The primary difference is product status: RG2012P-1052-B-T5 is active with 14,850 units in stock, compared to the obsolete RG2012P-1052-B-T1. Packaging format differs (Tape & Reel vs. unspecified), but electrical performance is identical. This part is recommended for direct substitution without design modification.
Upgraded Equivalents (Enhanced Specifications - Susumu):
RG2012N-1052-B-T5 and RG2012N-1052-W-T1 offer improved temperature coefficient performance (±10ppm/°C vs. ±25ppm/°C) while maintaining all other electrical parameters. RG2012N-1052-W-T1 additionally provides tighter tolerance (±0.05% vs. ±0.1%). Both are active products with AEC-Q200 automotive qualification. These upgrades are suitable for applications requiring enhanced stability and precision.
Cross-Manufacturer Equivalents (Active Status):
ERA-6AEB1052V (Panasonic) provides identical electrical specifications with AEC-Q200 qualification and active product status. Operating temperature range matches (-55°C to 155°C). Height is 0.60mm versus 0.50mm for the original part; this remains within 0805 package tolerance.
RT0805BRD0710K5L (YAGEO) matches all electrical parameters and operating temperature range. Product is active with 10,771 units in stock. No AEC-Q200 rating is specified.
Higher Power Rating Alternatives:
TNPW080510K5BEEA (Vishay Dale) provides 0.26W power rating with AEC-Q200 qualification and extended operating temperature to 175°C. Electrical specifications match the original part. This option is suitable for applications requiring additional thermal margin.
2176093-7 (TE Connectivity) offers 0.25W power rating with matching electrical specifications. Operating temperature range is -55°C to 155°C. No AEC-Q200 rating is specified.
Limited Temperature Range Option:
MCU08050D1052BP100 and MCU08050D1052BP500 (Vishay) provide matching electrical specifications but with reduced operating temperature range (-55°C to 125°C). These parts lack AEC-Q200 qualification. Selection of these parts is restricted to applications not requiring the full -55°C to 155°C temperature range or automotive qualification.
Frequently Asked Questions (FAQ)
Q: Can RG2012P-1052-B-T5 be used as a direct replacement for RG2012P-1052-B-T1?
A: Yes. Both parts are manufactured by Susumu with identical electrical specifications: 10.5 kOhms ±0.1%, 0.125W power rating, ±25ppm/°C temperature coefficient, and -55°C to 155°C operating range. The primary difference is product status (active vs. obsolete) and packaging format. No design modification is required.
Q: What is the difference between RG2012P and RG2012N series?
A: The RG2012N series offers improved temperature coefficient performance (±10ppm/°C) compared to RG2012P (±25ppm/°C). Both series maintain identical resistance values, tolerance, power rating, and package dimensions. Selection depends on application requirements for temperature stability.
Q: Can I use a part with ±0.05% tolerance instead of ±0.1%?
A: Yes. Tighter tolerance (±0.05%) is a specification upgrade and is compatible with designs requiring ±0.1% tolerance. The part will perform within the original specification window. Examples include RG2012N-1052-W-T1 and RG2012P-1052-W-T5.
Q: Are cross-manufacturer parts (Panasonic, YAGEO, Vishay) suitable replacements?
A: Yes, provided electrical specifications match: 10.5 kOhms ±0.1%, 0.125W, ±25ppm/°C, and -55°C to 155°C operating range. ERA-6AEB1052V (Panasonic) and RT0805BRD0710K5L (YAGEO) meet these criteria. Verify AEC-Q200 automotive qualification requirements for your application before selection.
Q: What is the significance of the height difference (0.50mm vs. 0.60mm)?
A: Both dimensions fall within the 0805 (2012 Metric) package specification. Height variation of 0.10mm is acceptable for standard PCB assembly processes. Verify clearance in your specific board layout if space constraints exist.
Q: Can I use TNPW080510K5BEEA with its higher 0.26W power rating?
A: Yes. Higher power rating provides additional thermal margin and is compatible with designs specified for 0.125W. The part will operate safely within the original power specification. This option is beneficial for applications with thermal stress or margin requirements.
Q: What does AEC-Q200 qualification mean?
A: AEC-Q200 is an automotive electronics qualification standard. Parts bearing this rating have undergone stress testing and reliability validation for automotive applications. For non-automotive applications, this certification is not required but indicates higher reliability standards.
Q: Why do some substitutes have reduced operating temperature range (-55°C to 125°C)?
A: MCU08050D1052BP100 and MCU08050D1052BP500 (Vishay) specify -55°C to 125°C maximum. These parts are suitable only for applications not requiring operation above 125°C. If your design requires the full -55°C to 155°C range, select alternatives with matching temperature specifications.
Q: Is the packaging format (Tape & Reel vs. other) important for substitution?
A: Packaging format affects supply chain and assembly processes but does not impact electrical or mechanical compatibility. Tape & Reel (TR) is standard for active production parts. Verify your assembly process requirements before selecting alternative packaging formats.
Q: Can I substitute a part with different temperature coefficient (±10ppm/°C vs. ±25ppm/°C)?
A: Yes. Lower temperature coefficient (±10ppm/°C) is an upgrade that provides better stability across temperature variations. Parts with ±10ppm/°C will perform within specifications for designs requiring ±25ppm/°C. This substitution is recommended for precision applications.
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