RG2012P-1580-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-1580-C-T5 is a 158 Ohms ±0.25% 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, suitable for high-reliability applications in temperature ranges from -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility while meeting automotive and compliance requirements.

Key Parameters

Parameter	Value
Resistance	158 Ohms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C to 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-1580-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 158 Ohms (exact match required)
Package type: 0805 (2012 Metric) (physical and electrical compatibility)
Power rating: Minimum 0.125W (1/8W) or higher
Operating temperature range: -55°C to 155°C (minimum requirement)
Composition: Thin film construction
RoHS compliance: ROHS3 Compliant

Tolerance and Performance Parameters: Substitute parts may feature equal or tighter tolerance specifications (±0.25%, ±0.1%, ±0.05%, ±0.02%) as these represent improvements in precision without affecting circuit functionality. Temperature coefficient values may vary (±5ppm/°C, ±10ppm/°C, ±25ppm/°C) depending on the specific resistor series.

Automotive Qualification: Parts with AEC-Q200 certification are preferred for direct substitution in automotive applications. Parts without explicit automotive ratings may be used in non-automotive contexts where AEC-Q200 is not mandated.

Product Status: The original part is obsolete. Active substitute parts ensure continued availability and supply chain reliability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	AEC-Q200	Product Status	Inventory (Pcs)
RG2012P-1580-C-T5	Susumu	158 Ω	±0.25%	0.125	±25	Yes	Obsolete	948
RG2012N-1580-B-T5	Susumu	158 Ω	±0.1%	0.125	±10	Yes	Active	811
RG2012N-1580-W-T1	Susumu	158 Ω	±0.05%	0.125	±10	Yes	Active	846
RG2012P-1580-B-T5	Susumu	158 Ω	±0.1%	0.125	±25	Yes	Active	1017
RG2012P-1580-W-T5	Susumu	158 Ω	±0.05%	0.125	±25	Yes	Active	908
RG2012V-1580-B-T5	Susumu	158 Ω	±0.1%	0.125	±5	Yes	Active	1037
RG2012V-1580-P-T1	Susumu	158 Ω	±0.02%	0.125	±5	Yes	Active	1140
RG2012V-1580-W-T1	Susumu	158 Ω	±0.05%	0.125	±5	Yes	Active	684
RG2012V-1580-W-T5	Susumu	158 Ω	±0.05%	0.125	±5	Yes	Active	1057
4-2176091-3	TE Connectivity Passive Product	158 Ω	±0.1%	0.25	±25	No	Active	2652
RT0805CRD07158RL	YAGEO	158 Ω	±0.25%	0.125	±25	No	Active	763

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series - AEC-Q200 Qualified):

For direct replacement in automotive applications requiring AEC-Q200 certification, the following Susumu RG series parts are functionally equivalent:

RG2012P-1580-B-T5: Maintains identical temperature coefficient (±25ppm/°C) and power rating (0.125W) with improved tolerance (±0.1% vs. ±0.25%). Active product status with 1017 units in stock.
RG2012P-1580-W-T5: Provides tighter tolerance (±0.05%) while maintaining temperature coefficient and power specifications. Active status with 908 units available.
RG2012V-1580-B-T5: Offers superior temperature coefficient performance (±5ppm/°C) with ±0.1% tolerance. Active status with 1037 units in inventory.
RG2012V-1580-P-T1: Highest precision option (±0.02% tolerance) with ±5ppm/°C temperature coefficient. Active status with 1140 units in stock.
RG2012V-1580-W-T1 and RG2012V-1580-W-T5: Both provide ±0.05% tolerance with ±5ppm/°C temperature coefficient. Active status with 684 and 1057 units respectively.
RG2012N-1580-B-T5 and RG2012N-1580-W-T1: Susumu alternatives with ±10ppm/°C temperature coefficient. Active status with 811 and 846 units respectively.

Secondary Substitutes (Non-Automotive Qualified):

RT0805CRD07158RL (YAGEO): Matches original specifications exactly (158 Ω, ±0.25%, 0.125W, ±25ppm/°C). Active status with 763 units. Suitable for non-automotive applications where AEC-Q200 is not required.
4-2176091-3 (TE Connectivity): Provides higher power rating (0.25W vs. 0.125W) with ±0.1% tolerance and ±25ppm/°C temperature coefficient. Not AEC-Q200 qualified. Active status with 2652 units. Suitable for applications requiring increased power dissipation capability.

Selection Criteria:

Choose substitutes based on application requirements: automotive applications mandate AEC-Q200 certification; precision-critical circuits benefit from tighter tolerance and lower temperature coefficient variants; power-constrained designs may utilize the higher-rated TE Connectivity option.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-1580-C-T5 be replaced with RT0805CRD07158RL?

A: Yes, for non-automotive applications. Both parts share identical electrical specifications (158 Ω, ±0.25%, 0.125W, ±25ppm/°C) and 0805 package. However, RT0805CRD07158RL lacks AEC-Q200 certification. For automotive applications, use AEC-Q200 qualified Susumu alternatives.

Q: What is the difference between RG2012P and RG2012V series?

A: The primary difference is temperature coefficient. RG2012P series has ±25ppm/°C, while RG2012V series has ±5ppm/°C. Both maintain identical resistance, tolerance options, power rating, and package specifications. RG2012V provides superior temperature stability for precision applications.

Q: Is the TE Connectivity part 4-2176091-3 a direct substitute?

A: It is electrically compatible for the 158 Ω, ±0.1%, ±25ppm/°C specifications. However, it differs in two aspects: power rating is 0.25W (double the original 0.125W) and it lacks AEC-Q200 certification. Use only in non-automotive applications where higher power dissipation is acceptable or beneficial.

Q: Why do some substitutes have tighter tolerances?

A: Tighter tolerance variants (±0.1%, ±0.05%, ±0.02%) represent improved precision grades within the same product family. These are direct upgrades that enhance circuit accuracy without affecting mechanical or thermal compatibility. They are suitable for applications requiring higher precision.

Q: Are all substitute parts ROHS3 compliant?

A: All Susumu RG series substitutes are ROHS3 compliant. The YAGEO RT0805CRD07158RL is ROHS3 compliant. The TE Connectivity part 4-2176091-3 is ROHS3 compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the physical difference between 0.125W and 0.25W rated resistors in 0805 package?

A: Both occupy identical 0805 (2012 Metric) package dimensions (2.00mm L × 1.25mm W). The 0.25W rated part (4-2176091-3) has maximum seated height of 0.026" (0.65mm) versus 0.020" (0.50mm) for 0.125W parts. This minimal height difference does not affect PCB layout compatibility in standard applications.

Q: Can I use RG2012V-1580-P-T1 in place of RG2012P-1580-C-T5?

A: Yes. RG2012V-1580-P-T1 is a direct mechanical and electrical substitute with superior specifications: ±0.02% tolerance (tighter than ±0.25%), ±5ppm/°C temperature coefficient (better than ±25ppm/°C), identical 0.125W power rating, and AEC-Q200 certification. It is suitable for all applications requiring the original part.

Q: Which substitute offers the best availability?

A: RG2012V-1580-P-T1 has the highest inventory at 1140 units, followed by RG2012V-1580-B-T5 with 1037 units and RG2012P-1580-B-T5 with 1017 units. All are active products with substantial stock levels.

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