RE0805FRE078K45L Equivalent & Substitute Parts

Part Overview

The RE0805FRE078K45L is an 8.45 kOhms ±1% thick film chip resistor manufactured by YAGEO in the 0805 (2012 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation with an operating temperature range of -55°C to 155°C. The part maintains Active product status and is ROHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity). Substitute parts are identified when equivalent resistance values, package dimensions, and electrical ratings can accommodate the application requirements within specified tolerance and power parameters.

Substiute Parts

RE0805FRE078K45L

YAGEOIn Stock: 1013RE0805FRE078K45L Datasheet

Current PartRFQ

ERJ-PB6B8451V

Panasonic Electronic ComponentsIn Stock: 3226ERJ-PB6B8451V Datasheet

MFR RecommendedRFQ

ERJ-PB6D8451V

Panasonic Electronic ComponentsIn Stock: 3971ERJ-PB6D8451V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RE0805FRE078K45L are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 8.45 kOhms (exact match required)
• Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
• Composition: Thick Film (material consistency)
• Temperature Coefficient: ±50ppm/°C (thermal stability equivalence)
• Operating Temperature Range: -55°C ~ 155°C (thermal envelope compatibility)

Allowable Variation Parameters:

• Tolerance: ±1% or tighter (±0.1%, ±0.5% are acceptable as they provide equal or superior precision)
• Power Rating: 0.125W or higher (0.25W provides equal or superior power handling capability)
• RoHS and MSL compliance maintained across all substitutes

The two identified substitutes (ERJ-PB6B8451V and ERJ-PB6D8451V) from Panasonic Electronic Components meet all mandatory parameters while offering improved tolerance specifications and higher power ratings. Both maintain identical package dimensions, thermal characteristics, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both Panasonic substitutes maintain Active product status and full ROHS3 compliance with MSL Level 1 ratings, ensuring regulatory and environmental compatibility with the original YAGEO component.

ERJ-PB6B8451V provides the tightest tolerance specification at ±0.1%, suitable for applications requiring superior precision over the original ±1% tolerance. The 0.25W power rating offers increased thermal margin. AEC-Q200 automotive qualification indicates enhanced reliability testing and pulse withstanding capability.

ERJ-PB6D8451V offers a mid-range tolerance of ±0.5% with equivalent 0.25W power rating and identical AEC-Q200 automotive qualification. This option balances precision improvement with cost considerations relative to the ±0.1% variant.

Both substitutes exhibit a maximum seated height of 0.028" (0.70mm) compared to the original 0.024" (0.60mm). This 0.004" (0.10mm) height differential must be evaluated for PCB layout clearance in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-PB6B8451V or ERJ-PB6D8451V be used as direct drop-in replacements for RE0805FRE078K45L?

A: Both Panasonic parts are electrically and mechanically compatible within the 0805 package format. The resistance value, tolerance specifications, and thermal characteristics align with substitution criteria. The maximum seated height increases by 0.004" (0.10mm); verify PCB clearance for components or traces above the resistor location.

Q: What is the significance of the tolerance difference between ±1% and ±0.1% or ±0.5%?

A: Tolerance defines the maximum deviation from the nominal 8.45 kOhms resistance value. The original ±1% allows a range of 8.3605 to 8.5395 kOhms. ERJ-PB6B8451V (±0.1%) restricts this to 8.435 to 8.465 kOhms, while ERJ-PB6D8451V (±0.5%) provides 8.4175 to 8.4825 kOhms. Tighter tolerances reduce circuit performance variation and are suitable for precision analog applications.

Q: What does AEC-Q200 automotive qualification indicate?

A: AEC-Q200 certification confirms the component has undergone automotive-grade reliability testing including thermal cycling, humidity resistance, and electrical stress evaluation. This qualification is not required for general industrial or consumer applications but indicates enhanced quality assurance and pulse withstanding capability.

Q: Are there any compliance or regulatory differences between the original and substitute parts?

A: All three parts maintain ROHS3 compliance, MSL Level 1 (Unlimited) moisture sensitivity rating, and Active product status. No regulatory or environmental compliance barriers exist for substitution.

Q: How does the 0.25W power rating of the substitutes compare to the 0.125W original?

A: The 0.25W rating provides double the power dissipation capability. If the application operates at or near the original 0.125W limit, the substitutes offer improved thermal margin and reduced component stress. If the application requires exactly 0.125W or lower, both ratings are functionally equivalent for that use case.