RT0805FRE0738R3L Equivalent & Substitute Parts

Part Overview

The RT0805FRE0738R3L is a 38.3 Ohm thin 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 ±1% tolerance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL Level 1 rating. Alternative components may be required due to inventory constraints, application-specific tolerance requirements, or power rating considerations in circuit designs.

Substiute Parts

RT0805FRE0738R3L

YAGEOIn Stock: 860RT0805FRE0738R3L Datasheet

Current PartRFQ

8-1625868-3

TE Connectivity Passive ProductIn Stock: 18558-1625868-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0805FRE0738R3L is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 38.3 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)
• RoHS3 Compliance (regulatory requirement)

Allowable Variation Parameters:

• Tolerance: May be equal to or tighter than ±1%
• Power Rating: Must be equal to or greater than 0.125W
• Temperature Coefficient: May differ if within acceptable application limits
• Height - Seated: Minor variations acceptable within PCB assembly constraints

The substitute part 8-1625868-3 (TE Connectivity Passive Product) meets all mandatory matching criteria while offering improved tolerance (±0.1%) and increased power rating (0.25W), making it a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The 8-1625868-3 from TE Connectivity Passive Product is a direct substitute for the RT0805FRE0738R3L. Both components maintain Active product status and full RoHS3 compliance with MSL Level 1 rating, ensuring regulatory and environmental compatibility. The substitute part provides enhanced specifications including tighter tolerance (±0.1% versus ±1%) and higher power dissipation capability (0.25W versus 0.125W), making it suitable for applications requiring improved precision or thermal headroom. The marginal increase in seated height (0.026" versus 0.024") remains within standard PCB assembly tolerances for 0805 package components. Selection between these parts should be based on application-specific requirements for tolerance and power rating, with both components offering equivalent electrical and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 8-1625868-3 be used as a direct replacement for the RT0805FRE0738R3L?

A: Yes. Both components share identical resistance values (38.3 Ohms), package format (0805), composition (thin film), and operating temperature range (-55°C to 155°C). The substitute part meets or exceeds all critical electrical and mechanical parameters required for direct substitution.

Q: What are the key differences between these two parts?

A: The primary differences are tolerance specification (±0.1% versus ±1%), power rating (0.25W versus 0.125W), temperature coefficient (±25ppm/°C versus ±50ppm/°C), and seated height (0.026" versus 0.024"). The substitute part offers superior performance in all these parameters.

Q: Are there any PCB assembly compatibility concerns with the height difference?

A: The height difference of 0.002" (0.05mm) is negligible for standard 0805 package assembly processes and falls within typical PCB design tolerances. No assembly modifications are required.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RT0805FRE0738R3L and 8-1625868-3 are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. They are electrically and environmentally equivalent from a regulatory perspective.

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

A: The 8-1625868-3 is the appropriate choice for applications requiring tighter tolerance control, as its ±0.1% specification provides superior accuracy compared to the ±1% tolerance of the RT0805FRE0738R3L.

Q: Can the RT0805FRE0738R3L be used in place of the 8-1625868-3?

A: The RT0805FRE0738R3L can be used as a substitute only in applications where the ±1% tolerance and 0.125W power rating are acceptable. Applications requiring the tighter tolerance or higher power dissipation capability of the 8-1625868-3 would not be suitable for the reverse substitution.