RJ0805FRE073RL Equivalent & Substitute Parts

Part Overview

The RJ0805FRE073RL is a 3 Ohm ±1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) operation. Manufactured by YAGEO, this component is classified as obsolete. Due to its discontinued status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Suitable alternatives maintain the core electrical specifications while offering improved availability and, in many cases, enhanced performance characteristics.

Key Parameters

Parameter	Value
Resistance	3 Ohms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 125°C
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

Resistance Value: Must be 3 Ohms
Package / Case: Must be 0805 (2012 Metric)
Composition: Must be Thin Film
Temperature Coefficient: Must be ±50ppm/°C or equivalent
Moisture Sensitivity Level: Must be 1 (Unlimited)

All substitute parts listed maintain these core parameters. Variations in tolerance (±0.5% vs ±1%), power rating (0.125W, 0.25W, 0.333W), and operating temperature upper limits (155°C vs 125°C) represent upgrades or alternative specifications within the same functional category. These variations do not prevent substitution but indicate enhanced or specialized capabilities.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op. Temp Range (°C)	Package	Product Status	RoHS Status
RJ0805FRE073RL	YAGEO	3 Ω	±1%	0.1	±50	-55 ~ 125	0805	Obsolete	REACH Unaffected
RT0805DRE073RL	YAGEO	3 Ω	±0.5%	0.125	±50	-55 ~ 155	0805	Active	ROHS3 Compliant
RT0805FRE073RL	YAGEO	3 Ω	±1%	0.125	±50	-55 ~ 155	0805	Active	ROHS3 Compliant
CRT0805-FZ-3R00ELF	Bourns Inc.	3 Ω	±1%	0.125	±50	-55 ~ 155	0805	Active	ROHS3 Compliant
RL1220S-3R0-F	Susumu	3 Ω	±1%	0.333	0 / +200	-55 ~ 125	0805	Active	ROHS3 Compliant
RNCF0805DTC3R00	Stackpole Electronics Inc	3 Ω	±0.5%	0.25	±50	-55 ~ 155	0805	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Upgrade Path: RT0805FRE073RL (YAGEO) provides direct functional equivalence with identical tolerance (±1%) and matching temperature coefficient (±50ppm/°C). This part is active and ROHS3 compliant, making it the preferred replacement for the obsolete RJ0805FRE073RL in most applications.

Enhanced Tolerance Alternative: RT0805DRE073RL (YAGEO) offers improved tolerance (±0.5%) with identical temperature coefficient and extended operating temperature range to 155°C. This upgrade is suitable for precision applications requiring tighter resistance tolerances.

Cross-Manufacturer Options: CRT0805-FZ-3R00ELF (Bourns Inc.) and RNCF0805DTC3R00 (Stackpole Electronics Inc) provide active alternatives from established manufacturers. The Bourns part includes current sense capability; the Stackpole part includes automotive AEC-Q200 qualification and higher power rating (0.25W).

High Power Variant: RL1220S-3R0-F (Susumi) offers the highest power rating (0.333W) with current sense capability, suitable for applications requiring increased thermal headroom. Note the temperature coefficient specification (0 / +200ppm/°C) differs from the standard ±50ppm/°C.

All substitute parts maintain REACH compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can RT0805FRE073RL directly replace RJ0805FRE073RL? A: Yes. Both parts share identical resistance (3 Ohms), tolerance (±1%), temperature coefficient (±50ppm/°C), and 0805 package. RT0805FRE073RL is active and ROHS3 compliant, making it the direct functional equivalent.

Q: What is the difference between the YAGEO RT series parts? A: RT0805DRE073RL offers ±0.5% tolerance versus ±1% in RT0805FRE073RL. Both have identical temperature coefficient and package. The tighter tolerance part is suitable for precision applications.

Q: Why do substitute parts have higher power ratings? A: Higher power ratings (0.125W, 0.25W, 0.333W) represent design improvements in thermal management and material composition. These upgrades maintain backward compatibility while providing additional margin for thermal stress and extended operating life.

Q: Are all substitute parts ROHS3 compliant? A: All active substitute parts listed are ROHS3 compliant. The original RJ0805FRE073RL is REACH Unaffected, and all substitutes maintain REACH compliance.

Q: What is the significance of "Current Sense" designation? A: Current sense resistors (CRT0805-FZ-3R00ELF, RL1220S-3R0-F) are optimized for low-noise, stable performance in current measurement circuits. They are functionally equivalent for general-purpose applications but offer enhanced specifications for precision current monitoring.

Q: Can I use RL1220S-3R0-F if my circuit operates at -55°C to 155°C? A: RL1220S-3R0-F operates from -55°C to 125°C, matching the original part's upper temperature limit. For applications requiring 155°C operation, use RT0805DRE073RL, RT0805FRE073RL, CRT0805-FZ-3R00ELF, or RNCF0805DTC3R00.

Q: Is RNCF0805DTC3R00 suitable for automotive applications? A: Yes. RNCF0805DTC3R00 carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications. Other substitutes are not specifically rated for automotive use.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message