RGH2012-2E-P-512-B Equivalent & Substitute Parts

Part Overview

The RGH2012-2E-P-512-B is a 5.1 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.25W (1/4W) power dissipation. This part is manufactured by Susumu and carries an Obsolete product status. Due to its obsolete classification, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

RGH2012-2E-P-512-B

SusumuIn Stock: 934RGH2012-2E-P-512-B Datasheet

Current PartRFQ

RG2012P-512-B-T5

SusumuIn Stock: 19128RG2012P-512-B-T5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RGH2012-2E-P-512-B is determined by the following critical parameters that must remain constant or compatible:

Mandatory Matching Parameters:

• Resistance value: 5.1 kOhms
• Tolerance: ±0.1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS3 Compliance

Allowable Variation:

• Power rating may be lower than the original specification, provided the substitute part meets the electrical requirements of the application circuit
• Product status may differ (Active vs. Obsolete)
• Packaging format may differ (bulk vs. Tape & Reel)
• Additional features (Anti-Sulfur, Automotive AEC-Q200 certification) do not prevent substitution

The substitute part RG2012P-512-B-T5 satisfies all mandatory matching parameters while offering enhanced features and Active product status.

Parameter Comparison

Engineering Selection Recommendations

The RG2012P-512-B-T5 is a direct substitute for the RGH2012-2E-P-512-B based on the following engineering criteria:

Electrical Compatibility: Both parts share identical resistance (5.1 kOhms), tolerance (±0.1%), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's lower power rating (0.125W vs. 0.25W) is acceptable provided the application circuit does not require the full 0.25W dissipation capability.

Physical Compatibility: Both parts utilize the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W) and maximum seated height (0.020"), ensuring direct footprint compatibility on printed circuit boards.

Regulatory Compliance: Both parts are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and reliability standards.

Product Status: The substitute part carries Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete main part.

Additional Certifications: The substitute part includes Anti-Sulfur treatment and Automotive AEC-Q200 certification, providing enhanced reliability for automotive and harsh environment applications without compromising compatibility.

Frequently Asked Questions (FAQ)

Q: Can RG2012P-512-B-T5 replace RGH2012-2E-P-512-B in all applications?

A: The RG2012P-512-B-T5 is electrically and physically compatible with RGH2012-2E-P-512-B. However, substitution is valid only when the application circuit does not require power dissipation exceeding 0.125W. If the original design requires the full 0.25W power rating, the substitute part is not suitable.

Q: What is the difference in power rating between these parts?

A: The main part (RGH2012-2E-P-512-B) is rated for 0.25W (1/4W), while the substitute (RG2012P-512-B-T5) is rated for 0.125W (1/8W). The lower power rating of the substitute part means it can dissipate less heat. Applications requiring higher power dissipation must use the original specification or an alternative part with matching or higher power rating.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0805 (2012 Metric) package with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.020" (0.50mm). They are footprint-compatible on PCBs.

Q: What is the significance of the Anti-Sulfur and AEC-Q200 features on the substitute part?

A: Anti-Sulfur treatment protects the resistor from sulfur-induced corrosion in harsh environments. AEC-Q200 certification indicates the part meets automotive industry reliability and quality standards. These features enhance the substitute part's performance in demanding applications without affecting basic electrical compatibility.

Q: Does the packaging format affect substitution?

A: The main part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical or physical compatibility. Component selection should account for production volume and assembly equipment requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RGH2012-2E-P-512-B and RG2012P-512-B-T5 are ROHS3 Compliant, meeting environmental regulations for hazardous substance restrictions.

Q: What is the temperature coefficient, and does it differ between parts?

A: Both parts have a temperature coefficient of ±25ppm/°C, indicating identical temperature stability. This parameter does not vary between the main part and substitute.