RMC1/16-305JTP Equivalent & Substitute Parts

Part Overview

The RMC1/16-305JTP is a 3 MOhms ±5% thick film chip resistor manufactured by Kamaya Inc., rated for 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is currently active in production and available in Tape & Reel packaging with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the 0603 package form factor, resistance value, power rating, and operating temperature range. Direct substitutes maintain identical tolerance and temperature coefficient specifications, while upgrade substitutes offer improved performance characteristics such as tighter tolerance or enhanced temperature stability.

Key Parameters

Parameter	Specification
Resistance Value	3 MOhms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 155°C
Temperature Coefficient	±200ppm/°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	2
Physical Dimensions	0.063" L x 0.031" W (1.60mm x 0.80mm)
Height - Seated (Max)	0.022" (0.55mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters:

Mandatory Compatibility Criteria:

Resistance value: 3 MOhms (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Power rating: 0.1W / 1/10W (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)
Composition: Thick Film (exact match required)
Number of terminations: 2 (exact match required)

Tolerance Classification:

Direct substitutes maintain ±5% tolerance specification
Upgrade substitutes offer ±1% tolerance (tighter specification, backward compatible)

Temperature Coefficient Classification:

Direct substitutes maintain ±200ppm/°C specification
Upgrade substitutes may offer ±100ppm/°C (improved stability, backward compatible)

Additional Qualifications:

Automotive AEC-Q200 certification is an enhancement, not a requirement for substitution
RoHS3 compliance status does not affect electrical substitutability
Packaging format (Tape & Reel vs. Cut Tape) does not affect component substitutability

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Temperature Coefficient	Operating Temperature	Package	Product Status	Automotive AEC-Q200
RMC1/16-305JTP	Kamaya Inc.	3 MOhms	±5%	0.1W	±200ppm/°C	-55°C ~ 155°C	0603	Active	No
MCR03ERTJ305	Rohm Semiconductor	3 MOhms	±5%	0.1W	±200ppm/°C	-55°C ~ 155°C	0603	Discontinued at DiGi Electronics	No
RMCF0603JT3M00	Stackpole Electronics Inc	3 MOhms	±5%	0.1W	±200ppm/°C	-55°C ~ 155°C	0603	Active	Yes
KTR03EZPF3004	Rohm Semiconductor	3 MOhms	±1%	0.1W	±100ppm/°C	-55°C ~ 155°C	0603	Active	Yes
RC0603JR-073ML	YAGEO	3 MOhms	±5%	0.1W	±100ppm/°C	-55°C ~ 155°C	0603	Active	No
RMCF0603FT3M00	Stackpole Electronics Inc	3 MOhms	±1%	0.1W	±200ppm/°C	-55°C ~ 155°C	0603	Active	Yes

Engineering Selection Recommendations

Direct Substitutes (Electrically Equivalent):

MCR03ERTJ305 (Rohm Semiconductor) provides direct electrical equivalence with identical tolerance (±5%) and temperature coefficient (±200ppm/°C). However, this part is discontinued at DiGi Electronics, limiting long-term availability for production applications.

RMCF0603JT3M00 (Stackpole Electronics Inc) provides direct electrical equivalence with identical tolerance (±5%) and temperature coefficient (±200ppm/°C). This part is active in production and includes Automotive AEC-Q200 certification, offering enhanced reliability qualification without electrical specification changes.

RC0603JR-073ML (YAGEO) provides direct electrical equivalence with identical tolerance (±5%) and maintains the operating temperature range. This part features improved temperature coefficient (±100ppm/°C) and moisture-resistant construction while remaining active in production.

Upgrade Substitutes (Enhanced Performance):

KTR03EZPF3004 (Rohm Semiconductor) offers tighter tolerance (±1% vs. ±5%) and improved temperature coefficient (±100ppm/°C vs. ±200ppm/°C). This part includes Automotive AEC-Q200 certification and high-voltage thick film construction. Upgrade substitution is applicable when circuit design permits tighter tolerance specifications.

RMCF0603FT3M00 (Stackpole Electronics Inc) offers tighter tolerance (±1% vs. ±5%) while maintaining the temperature coefficient (±200ppm/°C). This part is active in production with the highest inventory availability (560,532 pcs) and includes Automotive AEC-Q200 certification. Upgrade substitution is applicable when circuit design permits tighter tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTJ305 be used as a direct replacement for RMC1/16-305JTP?

A: MCR03ERTJ305 meets all electrical and mechanical compatibility requirements with identical resistance (3 MOhms), tolerance (±5%), power rating (0.1W), package (0603), and operating temperature range (-55°C to 155°C). However, this part is discontinued at DiGi Electronics, which may impact procurement for new production builds or long-term supply chain planning.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain identical electrical specifications including tolerance and temperature coefficient. Upgrade substitutes offer improved performance characteristics such as tighter tolerance (±1% vs. ±5%) or better temperature stability (±100ppm/°C vs. ±200ppm/°C). Upgrade substitutes are backward compatible and can replace the original part in any application where the original specifications are acceptable.

Q: Does Automotive AEC-Q200 certification affect substitutability?

A: Automotive AEC-Q200 certification is a reliability and qualification enhancement that does not alter electrical substitutability. Parts with AEC-Q200 certification can replace non-certified parts in any application. Non-certified parts cannot replace AEC-Q200 certified parts in automotive applications requiring this qualification.

Q: Are there packaging format differences between substitute options?

A: Substitute parts are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® packaging formats. Packaging format does not affect electrical or mechanical compatibility. Selection should be based on assembly process requirements and procurement volume.

Q: Can RMCF0603FT3M00 be used in place of RMC1/16-305JTP?

A: RMCF0603FT3M00 is an upgrade substitute with tighter tolerance (±1% vs. ±5%) and maintains all other electrical specifications. This part is active in production with the highest inventory availability and includes Automotive AEC-Q200 certification. It is suitable for any application where the original RMC1/16-305JTP is specified.

Q: What is the significance of the ±100ppm/°C temperature coefficient in RC0603JR-073ML and KTR03EZPF3004?

A: Temperature coefficient of ±100ppm/°C represents improved temperature stability compared to ±200ppm/°C. This means the resistance value will drift less across the operating temperature range (-55°C to 155°C). This specification is beneficial in precision analog circuits or temperature-sensitive applications, though it does not affect substitutability in applications designed for ±200ppm/°C components.

Q: Is RoHS3 compliance required for substitution?

A: RoHS3 compliance status does not determine electrical substitutability. All listed substitute parts are RoHS3 compliant. Selection should be based on regulatory requirements for the end application and supply chain specifications.

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