RT0805FRE0737R4L Equivalent & Substitute Parts

Part Overview

The RT0805FRE0737R4L is a 37.4 Ohm ±1% thin film chip resistor manufactured by YAGEO in 0805 (2012 Metric) package format. This surface mount device is rated for 0.125W (1/8W) power dissipation with an operating temperature range of -55°C to 155°C. The component is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and optimize cost-performance trade-offs across different manufacturing sources and performance specifications.

Substiute Parts

RT0805FRE0737R4L

YAGEOIn Stock: 956RT0805FRE0737R4L Datasheet

Current PartRFQ

8-1625868-2

TE Connectivity Passive ProductIn Stock: 29668-1625868-2 Datasheet

DirectRFQ

ERA-6AHD37R4V

Panasonic Electronic ComponentsIn Stock: 25649ERA-6AHD37R4V Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0805FRE0737R4L is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 37.4 Ohms (exact match required)
• Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
• Composition: Thin Film (electrical performance characteristics)
• Operating Temperature Range: -55°C to 155°C (minimum requirement)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

Allowable Variation Parameters:

• Tolerance: May be equal to or tighter than ±1%
• Power Rating: May be equal to or greater than 0.125W
• Temperature Coefficient: May vary within acceptable limits
• Manufacturer: Different manufacturers permitted if all mandatory parameters match

The two substitute parts listed below meet all mandatory matching criteria while offering variations in tolerance and power rating specifications.

Parameter Comparison

Engineering Selection Recommendations

8-1625868-2 (TE Connectivity Passive Product): This substitute offers superior tolerance specification (±0.1% versus ±1%) and increased power rating (0.25W versus 0.125W). The improved temperature coefficient (±25ppm/°C) provides enhanced stability. The maximum seated height is 0.026" (0.65mm), which is 0.002" higher than the original part. This part is suitable for applications requiring tighter tolerance control and higher thermal dissipation capability. All regulatory compliance requirements are met.

ERA-6AHD37R4V (Panasonic Electronic Components): This substitute maintains identical power rating (0.125W) and temperature coefficient (±50ppm/°C) specifications as the original part. The tolerance specification is intermediate (±0.5%). This part carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. The seated height matches the original specification at 0.024" (0.60mm). All regulatory compliance requirements are met.

Frequently Asked Questions (FAQ)

Q: Can 8-1625868-2 be used as a direct replacement for RT0805FRE0737R4L? A: Yes. Both parts share identical resistance value, package format, and operating temperature range. The substitute offers tighter tolerance and higher power rating. The 0.002" height difference must be verified against PCB layout constraints.

Q: What is the primary advantage of ERA-6AHD37R4V? A: ERA-6AHD37R4V provides AEC-Q200 automotive qualification while maintaining the same power rating and temperature coefficient as the original part. This makes it suitable for automotive applications requiring automotive-grade components.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original part's regulatory status.

Q: Does tolerance difference affect circuit performance? A: Tolerance differences affect resistor accuracy. Tighter tolerance (±0.1% or ±0.5%) provides greater precision than ±1%. Selection depends on circuit requirements for resistor accuracy.

Q: Are there physical compatibility concerns? A: All parts use 0805 (2012 Metric) package format with identical length and width (0.079" x 0.049"). The maximum seated height varies slightly: original and ERA-6AHD37R4V are 0.024" (0.60mm), while 8-1625868-2 is 0.026" (0.65mm). Verify against PCB design clearances.

Q: Can these parts be used interchangeably in production? A: Yes, provided circuit design specifications permit the tolerance and power rating variations. Verify component height clearance for 8-1625868-2 in your specific PCB layout.