RT1206FRE078K45L Equivalent & Substitute Parts

Part Overview

The RT1206FRE078K45L is an 8.45 kOhms ±1% thin film chip resistor manufactured by YAGEO in the 1206 (3216 Metric) package format. This component is rated for 0.25W (1/4W) power dissipation with an operating temperature range of -55°C to 155°C. The part is currently active in production with 805 units in stock and carries ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering enhanced specifications such as improved tolerance, lower temperature coefficient, or automotive-grade certifications.

Substiute Parts

RT1206FRE078K45L

YAGEOIn Stock: 817RT1206FRE078K45L Datasheet

Current PartRFQ

ERA-8AEB8451V

Panasonic Electronic ComponentsIn Stock: 4305ERA-8AEB8451V Datasheet

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RG3216P-8451-B-T5

SusumuIn Stock: 6021RG3216P-8451-B-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT1206FRE078K45L is determined by the following mandatory parameters:

• Resistance value: 8.45 kOhms (exact match required)
• Package format: 1206 (3216 Metric) (mechanical compatibility)
• Power rating: 0.25W minimum (functional requirement)
• Composition: Thin film (electrical performance characteristic)
• Operating temperature range: -55°C to 155°C minimum (environmental compatibility)
• RoHS compliance: ROHS3 (regulatory requirement)

Tolerance and temperature coefficient may vary in substitute parts, provided the substitute meets or exceeds the original specification. The identified substitute parts ERA-8AEB8451V and RG3216P-8451-B-T5 satisfy all mandatory parameters with enhanced tolerance specifications (±0.1% versus ±1%) and lower temperature coefficients (±25ppm/°C versus ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both ERA-8AEB8451V and RG3216P-8451-B-T5 are direct substitutes for RT1206FRE078K45L based on electrical and mechanical compatibility. Selection between alternatives depends on application requirements:

ERA-8AEB8451V (Panasonic) provides AEC-Q200 automotive qualification with improved tolerance (±0.1%) and reduced temperature coefficient (±25ppm/°C). This part is suitable for applications requiring automotive-grade reliability.

RG3216P-8451-B-T5 (Susumi) offers the same AEC-Q200 certification with additional anti-sulfur protection and the lowest maximum seated height (0.020" / 0.50mm) among the three options. This part is appropriate for applications in corrosive environments or where PCB space constraints are critical.

RT1206FRE078K45L remains the baseline option for general-purpose applications where automotive certification and enhanced tolerance are not required.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB8451V or RG3216P-8451-B-T5 be used as direct replacements for RT1206FRE078K45L?

A: Yes. Both parts share identical resistance values (8.45 kOhms), power ratings (0.25W), package formats (1206), and operating temperature ranges (-55°C to 155°C). The substitute parts exceed the original specification with tighter tolerance (±0.1% versus ±1%) and lower temperature coefficients (±25ppm/°C versus ±50ppm/°C).

Q: What is the difference between the two substitute parts?

A: ERA-8AEB8451V provides standard AEC-Q200 automotive qualification. RG3216P-8451-B-T5 includes both AEC-Q200 certification and anti-sulfur protection, with a lower maximum seated height (0.020" versus 0.028"). Selection depends on environmental exposure and PCB layout constraints.

Q: Are there mechanical compatibility concerns when substituting these parts?

A: All three parts use the 1206 (3216 Metric) package format with identical footprints. Dimensional variations exist in maximum seated height (RT1206FRE078K45L: 0.026", ERA-8AEB8451V: 0.028", RG3216P-8451-B-T5: 0.020"), but these fall within standard PCB assembly tolerances and do not affect electrical performance or mechanical mounting.

Q: Do all parts meet regulatory compliance requirements?

A: Yes. RT1206FRE078K45L, ERA-8AEB8451V, and RG3216P-8451-B-T5 are all ROHS3 compliant with MSL 1 (unlimited moisture sensitivity). All parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: Which part should be selected for high-precision applications?

A: ERA-8AEB8451V and RG3216P-8451-B-T5 are preferred for precision applications due to ±0.1% tolerance and ±25ppm/°C temperature coefficient, compared to RT1206FRE078K45L at ±1% tolerance and ±50ppm/°C.