RT1206FRE0739K2L Equivalent & Substitute Parts

Part Overview

The RT1206FRE0739K2L is a 39.2 kOhms ±1% thin film chip resistor manufactured by YAGEO in 1206 (3216 Metric) package format. This component is rated for 0.25W (1/4W) power dissipation with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is ROHS3 compliant, REACH unaffected, and currently in active production status with 1424 units in stock. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, or meet specific application requirements such as enhanced tolerance, increased power rating, or automotive qualification.

Substiute Parts

RT1206FRE0739K2L

YAGEOIn Stock: 1443RT1206FRE0739K2L Datasheet

Current PartRFQ

ERA-8AEB3922V

Panasonic Electronic ComponentsIn Stock: 11750ERA-8AEB3922V Datasheet

UpgradeRFQ

RNCP1206FTD39K2

Stackpole Electronics IncIn Stock: 7491RNCP1206FTD39K2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT1206FRE0739K2L are qualified based on the following criteria:

Core Electrical Parameters (Non-Negotiable):

• Resistance value: 39.2 kOhms
• Package / Case: 1206 (3216 Metric)
• Composition: Thin Film
• Operating temperature range: -55°C ~ 155°C minimum
• RoHS3 compliance

Allowable Variations:

• Tolerance: May be equal to or tighter than ±1%
• Power rating: May be equal to or greater than 0.25W
• Temperature coefficient: May be equal to or lower (better stability)
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable in manufacturing environments

Two substitute parts meet these criteria:

1. ERA-8AEB3922V (Panasonic) – Upgrade substitute with tighter tolerance (±0.1%), lower temperature coefficient (±25ppm/°C), and automotive AEC-Q200 qualification
2. RNCP1206FTD39K2 (Stackpole Electronics) – Higher power rating substitute (0.5W) with anti-sulfur thin film composition and equivalent tolerance (±1%)

Parameter Comparison

Engineering Selection Recommendations

ERA-8AEB3922V (Panasonic) – Upgrade Substitute: Select this part when enhanced tolerance and temperature stability are required. The ±0.1% tolerance and ±25ppm/°C temperature coefficient provide superior performance compared to the original specification. AEC-Q200 automotive qualification makes this part suitable for automotive and high-reliability applications. This substitute is electrically and mechanically compatible with the RT1206FRE0739K2L in all standard circuit applications.

RNCP1206FTD39K2 (Stackpole Electronics) – Higher Power Rating Substitute: Select this part when circuit power dissipation exceeds 0.25W but remains within 0.5W limits. The doubled power rating (0.5W vs. 0.25W) provides thermal margin in high-current applications. Anti-sulfur thin film composition offers enhanced environmental resistance. This substitute maintains electrical equivalence at the specified resistance and tolerance values. The higher temperature coefficient (±100ppm/°C) is acceptable where the original ±50ppm/°C specification is not a critical design constraint.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and the full -55°C to 155°C operating temperature range of the original component.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB3922V be used as a direct drop-in replacement for RT1206FRE0739K2L? A: Yes. Both parts share identical resistance value (39.2 kOhms), package format (1206), and operating temperature range (-55°C ~ 155°C). The ERA-8AEB3922V offers tighter tolerance (±0.1% vs. ±1%) and lower temperature coefficient (±25ppm/°C vs. ±50ppm/°C), making it functionally superior in all applications where the original part is specified.

Q: What is the primary difference between ERA-8AEB3922V and RNCP1206FTD39K2? A: ERA-8AEB3922V maintains the original 0.25W power rating with enhanced tolerance and temperature stability, plus automotive AEC-Q200 qualification. RNCP1206FTD39K2 doubles the power rating to 0.5W with anti-sulfur composition, suitable for higher dissipation circuits. Both maintain ±1% tolerance but differ in temperature coefficient specifications.

Q: Can RNCP1206FTD39K2 be used in place of RT1206FRE0739K2L if power dissipation is only 0.25W? A: Yes. The RNCP1206FTD39K2 is rated for 0.5W, so it safely handles 0.25W applications with thermal margin. Electrical parameters (resistance, tolerance, operating temperature) are compatible. The higher power rating does not degrade performance in lower-power circuits.

Q: Are there packaging format differences between these parts? A: RT1206FRE0739K2L is supplied in Tape & Reel (TR) format. ERA-8AEB3922V is also supplied in Tape & Reel (TR) format. RNCP1206FTD39K2 is supplied in Cut Tape (CT) & Digi-Reel® format. Both packaging formats are standard for SMD component handling and are interchangeable in manufacturing environments.

Q: Do all three parts meet the same environmental compliance standards? A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. They are suitable for equivalent environmental and regulatory applications.

Q: Which substitute should be selected for automotive applications? A: ERA-8AEB3922V is the appropriate choice for automotive applications due to AEC-Q200 qualification. This certification ensures the part meets automotive industry reliability and performance standards. RT1206FRE0739K2L and RNCP1206FTD39K2 do not carry automotive qualification.