RG2012P-124-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-124-C-T5 is a 120 kOhms ±0.25% 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 construction and automotive AEC-Q200 qualification, suitable for high-reliability applications across -55°C to 155°C operating temperature range. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active product lines that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	120 kOhms
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-124-C-T5 is determined by strict equivalence in the following parameters: resistance value (120 kOhms), power rating (0.125W), and package type (0805). Tolerance, temperature coefficient, and operating temperature range define performance classes within this equivalence group. Parts are grouped into three categories based on tolerance specification:

Tolerance-Enhanced Upgrades (±0.1%): Parts with improved tolerance specification while maintaining identical resistance, power rating, and package dimensions. These include RG2012N-124-B-T5, RG2012P-124-B-T5, ERA-6AEB124V, MCU08050D1203BP100, and RT0805BRD07120KL.

Tolerance-Enhanced Upgrades (±0.05%): Parts with superior tolerance specification. These include RG2012N-124-W-T5 and RG2012P-124-W-T5.

Direct Equivalent (±0.25%): Part with matching tolerance specification from alternative manufacturer. This includes RT0805CRD07120KL from YAGEO.

All substitute parts maintain 0805 package dimensions, thin film composition, and ROHS3 compliance. Automotive AEC-Q200 certification is present in Susumu RG series and Panasonic ERA-6A series parts.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status
RG2012P-124-C-T5	Susumu	120 kOhms	±0.25%	0.125	±25	-55 to 155	Yes	Obsolete
RG2012N-124-B-T5	Susumu	120 kOhms	±0.1%	0.125	±10	-55 to 155	Yes	Active
RG2012N-124-W-T5	Susumu	120 kOhms	±0.05%	0.125	±10	-55 to 155	Yes	Active
RG2012P-124-B-T5	Susumu	120 kOhms	±0.1%	0.125	±25	-55 to 155	Yes	Active
RG2012P-124-W-T5	Susumu	120 kOhms	±0.05%	0.125	±25	-55 to 155	Yes	Active
RT0805CRD07120KL	YAGEO	120 kOhms	±0.25%	0.125	±25	-55 to 155	No	Active
ERA-6AEB124V	Panasonic Electronic Components	120 kOhms	±0.1%	0.125	±25	-55 to 155	Yes	Active
MCU08050D1203BP100	Vishay Beyschlag/Draloric/BC Components	120 kOhms	±0.1%	0.125	±25	-55 to 125	No	Active
RT0805BRD07120KL	YAGEO	120 kOhms	±0.1%	0.125	±25	-55 to 155	No	Active

Engineering Selection Recommendations

For Direct Replacement (Matching Tolerance ±0.25%): RT0805CRD07120KL from YAGEO provides electrical and mechanical equivalence with identical tolerance and temperature coefficient specifications. This part is active in production and ROHS3 compliant. However, it lacks automotive AEC-Q200 certification present in the original RG2012P-124-C-T5.

For Tolerance-Enhanced Substitution (±0.1%): RG2012P-124-B-T5 from Susumu is the preferred upgrade option, offering improved tolerance specification while maintaining all automotive qualifications, anti-sulfur construction, and identical temperature coefficient. This part has the highest inventory availability (17,459 units) and active product status. ERA-6AEB124V from Panasonic provides equivalent electrical performance with AEC-Q200 certification and active status. RT0805BRD07120KL from YAGEO offers improved tolerance with extensive inventory (63,591 units) and active status, though without AEC-Q200 certification.

For Superior Tolerance Requirement (±0.05%): RG2012P-124-W-T5 from Susumu delivers the tightest tolerance specification while maintaining automotive AEC-Q200 qualification and anti-sulfur features. RG2012N-124-W-T5 provides equivalent tolerance with improved temperature coefficient (±10ppm/°C) and active status.

For Temperature-Constrained Applications: MCU08050D1203BP100 from Vishay operates only to 125°C maximum, limiting its use to applications not requiring the full -55°C to 155°C range of the original part.

Frequently Asked Questions (FAQ)

Q: Can RT0805CRD07120KL directly replace RG2012P-124-C-T5 in automotive applications? A: RT0805CRD07120KL provides electrical and mechanical equivalence with matching 120 kOhms resistance, ±0.25% tolerance, and 0805 package. However, it lacks automotive AEC-Q200 certification. Applications requiring AEC-Q200 qualification should use RG2012P-124-B-T5 or ERA-6AEB124V instead.

Q: What is the difference between RG2012P and RG2012N series parts? A: Both series are 120 kOhms thin film resistors in 0805 package with anti-sulfur construction and AEC-Q200 certification. The primary difference is temperature coefficient: RG2012P series has ±25ppm/°C while RG2012N series has ±10ppm/°C. The letter designation (B, C, W) indicates tolerance level: C=±0.25%, B=±0.1%, W=±0.05%.

Q: Is RG2012P-124-B-T5 a suitable upgrade from the obsolete RG2012P-124-C-T5? A: Yes. RG2012P-124-B-T5 maintains identical resistance, power rating, package, temperature coefficient, operating range, and automotive qualifications while providing improved tolerance (±0.1% versus ±0.25%). It is active in production with high inventory availability.

Q: Can I use ERA-6AEB124V in place of RG2012P-124-C-T5? A: ERA-6AEB124V is electrically compatible with matching 120 kOhms resistance, 0.125W power rating, and 0805 package. It carries automotive AEC-Q200 certification and operates across -55°C to 155°C. The tolerance is improved at ±0.1%. Mechanical dimensions differ slightly (0.024" maximum height versus 0.020"), which may affect PCB layout in space-constrained designs.

Q: What is the inventory status of substitute parts? A: RG2012P-124-B-T5 has 17,459 units in stock. RT0805BRD07120KL has 63,591 units. ERA-6AEB124V has 11,764 units. RG2012N-124-W-T5 has 1,015 units. All substitute parts are active products with established supply chains.

Q: Does MCU08050D1203BP100 work for all temperature ranges of the original part? A: MCU08050D1203BP100 operates only to 125°C maximum, compared to 155°C for RG2012P-124-C-T5. Applications requiring operation above 125°C must use alternative substitutes with full -55°C to 155°C range.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited), matching the original RG2012P-124-C-T5 specifications.

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