LVC06JR300EV Equivalent & Substitute Parts

Part Overview

The Ohmite LVC06JR300EV is a 300 mOhms ±5% thick film chip resistor in 1206 package (3216 Metric) rated for 0.5W power dissipation. Designed for current sense applications with moisture resistant characteristics, this component operates across -40°C to 125°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Resistance	300 mOhms
Tolerance	±5%
Power Rating	0.5W (1/2W)
Package	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-40°C to 125°C
Features	Current Sense, Moisture Resistant
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the LVC06JR300EV is determined by strict equivalence in the following parameters: resistance value (300 mOhms), power rating (0.5W), package type (1206), composition (thick film), and current sense functionality. All substitute parts maintain these core electrical and mechanical specifications.

Tolerance variations are permitted where the substitute part tolerance is equal to or tighter than the original ±5% specification. Temperature coefficient and operating temperature range may vary within acceptable engineering margins for the application. All substitute parts maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Parameter	LVC06JR300EV (Ohmite)	RLP73K2BR30JTD (TE Connectivity)	RLP73K2BR30FTDF (TE Connectivity)	CSR1206FKR300 (Stackpole)	RCWE1206R300FKEA (Vishay Dale)
Resistance	300 mOhms	300 mOhms	300 mOhms	300 mOhms	300 mOhms
Tolerance	±5%	±5%	±1%	±1%	±1%
Power Rating	0.5W	0.5W	0.5W	0.5W	0.5W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±200ppm/°C	±200ppm/°C	±200ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-40°C to 125°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Product Status	Obsolete	Active	Active	Active	Active
Features	Current Sense, Moisture Resistant	Current Sense	Current Sense	Current Sense	Current Sense, Moisture Resistant, AEC-Q200
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts are active products with current manufacturing availability, addressing the obsolescence of the original LVC06JR300EV. Selection among substitutes depends on application-specific requirements:

RLP73K2BR30JTD (TE Connectivity) maintains the original ±5% tolerance specification and ±200ppm/°C temperature coefficient while offering extended operating temperature range (-55°C to 155°C) and active product status.

RLP73K2BR30FTDF (TE Connectivity) provides tighter ±1% tolerance with identical temperature coefficient and extended operating range, suitable for applications requiring improved accuracy.

CSR1206FKR300 (Stackpole Electronics) offers ±1% tolerance with superior ±100ppm/°C temperature coefficient and extended operating range, providing enhanced stability for precision current sensing applications.

RCWE1206R300FKEA (Vishay Dale) combines ±1% tolerance, ±100ppm/°C temperature coefficient, extended operating range, and AEC-Q200 automotive qualification. This part includes moisture resistant features matching the original specification and is suitable for automotive and high-reliability applications.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with ±1% tolerance in place of the ±5% original specification?

A: Yes. Tighter tolerance specifications are functionally compatible with designs specified for ±5% tolerance. The ±1% substitute parts provide improved accuracy without compromising circuit functionality.

Q: Are all substitute parts pin-compatible with the LVC06JR300EV?

A: Yes. All substitute parts use the 1206 (3216 Metric) package with identical two-termination configuration and footprint compatibility. Minor dimensional variations within the package specification do not affect PCB assembly or electrical performance.

Q: Which substitute part is recommended for automotive applications?

A: RCWE1206R300FKEA (Vishay Dale) carries AEC-Q200 automotive qualification and is the appropriate selection for automotive-grade designs.

Q: What is the impact of different temperature coefficients on circuit performance?

A: Temperature coefficient determines resistance drift across operating temperature range. The original ±200ppm/°C specification drifts approximately 0.024 ohms across the -40°C to 125°C range. Substitute parts with ±100ppm/°C (CSR1206FKR300 and RCWE1206R300FKEA) provide half the drift rate, beneficial for precision current sensing circuits operating across wide temperature ranges.

Q: Are all substitute parts available in tape and reel packaging?

A: Yes. All substitute parts are supplied in tape and reel (TR) packaging suitable for automated PCB assembly processes.

Q: Does the extended operating temperature range of substitute parts affect compatibility?

A: No. Extended operating range (-55°C to 155°C versus -40°C to 125°C) provides additional design margin without affecting compatibility with designs specified for the original temperature range.

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