RG2012P-1742-C-T5 Equivalent & Substitute Parts

Part Overview

The RG2012P-1742-C-T5 is a 17.4 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 RG2012P-1742-C-T5 is classified as obsolete. Equivalent and substitute parts are available from multiple manufacturers with improved specifications or enhanced availability. Substitution is necessary to ensure continued supply chain access and design flexibility while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	17.4 kOhms
Tolerance	±0.25%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Operating Temperature	-55°C ~ 155°C
Temperature Coefficient	±25ppm/°C
Features	Anti-Sulfur, Automotive AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RG2012P-1742-C-T5 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 17.4 kOhms (exact match required)
Package / Case: 0805 (2012 Metric) (physical and electrical footprint compatibility)
Power rating: 0.125W minimum (1/8W or higher acceptable)
Composition: Thin Film (electrical performance characteristics)
Operating temperature range: -55°C to 155°C minimum (full range or subset acceptable)

Tolerance Considerations: Substitute parts with equal or tighter tolerance (±0.25% or better) maintain or improve circuit performance. Parts with ±0.1% or ±0.05% tolerance provide enhanced precision without functional degradation.

Automotive Qualification: AEC-Q200 certification is a feature, not a mandatory requirement for substitution. Non-automotive qualified parts remain electrically compatible but may not satisfy specific application requirements.

Temperature Coefficient: Temperature coefficient values (±10ppm/°C, ±15ppm/°C, ±25ppm/°C) indicate drift characteristics. Lower values provide superior stability but do not prevent substitution.

Substitute parts are grouped into three categories: Susumu upgrades (improved tolerance or temperature coefficient), direct cross-references from alternative manufacturers (equivalent specifications), and compatible alternatives (same electrical performance, different construction features).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status
RG2012P-1742-C-T5	Susumu	17.4 kOhms	±0.25%	0.125	±25	-55 ~ 155	Yes	Obsolete
RG2012N-1742-B-T5	Susumu	17.4 kOhms	±0.1%	0.125	±10	-55 ~ 155	Yes	Active
RG2012N-1742-W-T1	Susumu	17.4 kOhms	±0.05%	0.125	±10	-55 ~ 155	Yes	Active
RG2012P-1742-B-T5	Susumu	17.4 kOhms	±0.1%	0.125	±25	-55 ~ 155	Yes	Active
RG2012P-1742-W-T5	Susumu	17.4 kOhms	±0.05%	0.125	±25	-55 ~ 155	Yes	Active
2-2176093-6	TE Connectivity Passive Product	17.4 kOhms	±0.1%	0.25	±25	-55 ~ 155	No	Active
RT0805CRD0717K4L	YAGEO	17.4 kOhms	±0.25%	0.125	±25	-55 ~ 155	No	Active
ERA-6AEB1742V	Panasonic Electronic Components	17.4 kOhms	±0.1%	0.125	±25	-55 ~ 155	Yes	Active
MCU08050D1742BP500	Vishay Beyschlag/Draloric/BC Components	17.4 kOhms	±0.1%	0.125	±25	-55 ~ 125	No	Active
RP73D2A17K4BTDF	TE Connectivity Passive Product	17.4 kOhms	±0.1%	0.125	±15	-55 ~ 155	No	Active
RT0805BRD0717K4L	YAGEO	17.4 kOhms	±0.1%	0.125	±25	-55 ~ 155	No	Active

Engineering Selection Recommendations

Primary Substitutes (Susumu RG Series - Same Manufacturer):

RG2012N-1742-B-T5, RG2012N-1742-W-T1, RG2012P-1742-B-T5, and RG2012P-1742-W-T5 are active Susumu products offering improved tolerance specifications (±0.1% or ±0.05%) compared to the obsolete RG2012P-1742-C-T5 (±0.25%). All maintain automotive AEC-Q200 qualification, identical package dimensions, and full operating temperature range (-55°C to 155°C). These parts provide direct design-in compatibility with enhanced precision characteristics.

Secondary Substitutes (Alternative Manufacturers - Equivalent Specifications):

RT0805BRD0717K4L (YAGEO), ERA-6AEB1742V (Panasonic), and RP73D2A17K4BTDF (TE Connectivity) provide 17.4 kOhms ±0.1% in 0805 package with 0.125W power rating and -55°C to 155°C operating range. ERA-6AEB1742V maintains AEC-Q200 automotive qualification. All three are active products with established supply availability.

Tertiary Substitutes (Compatible Alternatives):

RT0805CRD0717K4L (YAGEO) matches the original part's ±0.25% tolerance and 0.125W rating in 0805 package. MCU08050D1742BP500 (Vishay) offers ±0.1% tolerance but operates to 125°C maximum (5°C below original specification). 2-2176093-6 (TE Connectivity) provides ±0.1% tolerance with 0.25W power rating (double the original), suitable for applications with higher thermal margin requirements.

Selection Criteria:

For direct replacement with improved precision: Select RG2012N-1742-B-T5 or RG2012P-1742-B-T5
For highest precision requirement: Select RG2012N-1742-W-T1 or RG2012P-1742-W-T5
For automotive-qualified alternative: Select ERA-6AEB1742V
For maximum supply availability: Select RT0805BRD0717K4L
For applications requiring extended thermal margin: Select 2-2176093-6

Frequently Asked Questions (FAQ)

Q: Can I substitute the RG2012P-1742-C-T5 with a part having tighter tolerance?

A: Yes. Parts with ±0.1% or ±0.05% tolerance (RG2012N-1742-B-T5, RG2012N-1742-W-T1, RG2012P-1742-B-T5, RG2012P-1742-W-T5, RT0805BRD0717K4L, ERA-6AEB1742V, RP73D2A17K4BTDF, MCU08050D1742BP500) are direct substitutes. Tighter tolerance improves circuit accuracy without functional degradation.

Q: Is AEC-Q200 automotive qualification required for substitution?

A: No. AEC-Q200 is a feature that indicates automotive-grade reliability. Non-automotive qualified parts (RT0805CRD0717K4L, RT0805BRD0717K4L, RP73D2A17K4BTDF, MCU08050D1742BP500, 2-2176093-6) are electrically compatible. Select automotive-qualified alternatives only if your application specification requires AEC-Q200 certification.

Q: Can I use a 0.25W (1/4W) rated resistor instead of 0.125W (1/8W)?

A: Yes. 2-2176093-6 provides 0.25W power rating in the same 0805 package. Higher power rating provides additional thermal margin and does not affect electrical performance. Physical dimensions remain compatible.

Q: What is the difference between temperature coefficient values?

A: Temperature coefficient indicates resistance drift with temperature change. Lower values (±10ppm/°C or ±15ppm/°C) provide superior stability across the operating range. The original part specifies ±25ppm/°C. Substitutes with lower coefficients (RG2012N-1742-B-T5, RG2012N-1742-W-T1, RP73D2A17K4BTDF) offer improved performance without compatibility issues.

Q: Are all substitute parts available in the same packaging format?

A: All listed substitutes are supplied in Tape & Reel (TR) format, matching the original part's packaging. Physical footprint and solder pad configuration are identical across all 0805 package variants.

Q: Can I substitute with RT0805CRD0717K4L if I need exact tolerance matching?

A: Yes. RT0805CRD0717K4L matches the original ±0.25% tolerance specification exactly. This part is suitable for applications where tolerance specification is a critical design parameter.

Q: What is the maximum operating temperature for MCU08050D1742BP500?

A: MCU08050D1742BP500 operates to 125°C maximum, which is 30°C below the original part's 155°C upper limit. This part is suitable only for applications where the maximum operating temperature does not exceed 125°C.

Q: Which substitute offers the best supply availability?

A: RT0805BRD0717K4L (YAGEO) has 6,308 pieces in stock. ERA-6AEB1742V (Panasonic) has 16,435 pieces in stock, providing the highest inventory level among all substitutes.

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