RT0805FRE0746R4L Equivalent & Substitute Parts

Part Overview

The RT0805FRE0746R4L is a 46.4 Ohm ±1% 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 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 electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

RT0805FRE0746R4L

YAGEOIn Stock: 1108RT0805FRE0746R4L Datasheet

Current PartRFQ

9-1625868-1

TE Connectivity Passive ProductIn Stock: 20929-1625868-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0805FRE0746R4L is determined by the following critical parameters:

• Resistance Value: Must be 46.4 Ohms
• Package Format: Must be 0805 (2012 Metric) to ensure PCB footprint compatibility
• Composition: Thin film construction maintains electrical performance characteristics
• Operating Temperature Range: Must support -55°C to 155°C minimum
• RoHS Compliance: Must meet RoHS3 requirements for regulatory alignment

The substitute part 9-1625868-1 (TE Connectivity Passive Product) meets all critical substitution criteria. While this part offers improved tolerance (±0.1% vs ±1%) and higher power rating (0.25W vs 0.125W), these represent performance enhancements rather than deviations from the original specification. The identical resistance value, package format, thin film composition, and temperature range ensure direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0805FRE0746R4L and 9-1625868-1 maintain Active product status and full RoHS3 compliance. The substitute part 9-1625868-1 provides enhanced specifications including tighter tolerance (±0.1%) and increased power dissipation capability (0.25W). The marginal height difference (0.026" vs 0.024" maximum seated height) remains within typical PCB assembly tolerances for 0805 components. Selection between these parts should be based on application-specific requirements for tolerance precision and thermal headroom, with both parts suitable for direct substitution in standard 0805 footprint designs.

Frequently Asked Questions (FAQ)

Q: Can the 9-1625868-1 be used as a direct replacement for the RT0805FRE0746R4L?

A: Yes. Both parts share identical resistance value (46.4 Ohms), package format (0805), composition (thin film), and operating temperature range (-55°C to 155°C). The substitute part meets or exceeds all electrical and mechanical specifications of the original component.

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

A: Tolerance defines the acceptable resistance variation from the nominal 46.4 Ohm value. The ±0.1% tolerance of the substitute part provides tighter resistance accuracy compared to the ±1% tolerance of the original part. This enhanced precision may be beneficial in applications requiring strict impedance control or precision analog circuits.

Q: Does the higher power rating of the substitute part affect compatibility?

A: No. The 0.25W (1/4W) power rating of the substitute part exceeds the 0.125W (1/8W) requirement of the original specification. Higher power rating provides additional thermal margin and does not compromise compatibility in applications designed for the lower power rating.

Q: Are there any height considerations for PCB assembly?

A: The substitute part has a maximum seated height of 0.026" (0.65mm) compared to 0.024" (0.60mm) for the original part. This 0.002" (0.05mm) difference is negligible for standard PCB assembly processes and does not affect component placement or clearance in typical 0805 footprint designs.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RT0805FRE0746R4L and 9-1625868-1 are RoHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent regulatory and environmental compliance.