RMC1/8-683JTP Equivalent & Substitute Parts Reference

Part Overview

The RMC1/8-683JTP is a 68 kOhms ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Kamaya Inc. This component is classified as Active product status with 1009 units in current inventory. The RMC series represents a standard general-purpose resistor suitable for general circuit applications requiring basic tolerance specifications. Substitute parts are necessary when addressing supply chain constraints, design upgrades requiring tighter tolerance specifications, or when specific certifications such as AEC-Q200 automotive qualification are required for application compliance.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	68 kOhms	Core electrical specification
Tolerance	±5%	Determines substitution compatibility
Power Rating	0.25W (1/4W)	Thermal and electrical capability
Package Type	1206 (3216 Metric)	Physical footprint and mounting
Composition	Thick Film	Technology type
Temperature Coefficient	±200ppm/°C	Temperature stability characteristic
Operating Temperature Range	-55°C to 155°C	Environmental operating limits
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitute parts for the RMC1/8-683JTP are categorized into two functional groups based on electrical parameter compatibility:

Direct Substitutes (Equivalent Tolerance ±5%)

Direct substitutes maintain identical electrical specifications: 68 kOhms resistance, ±5% tolerance, 0.25W power rating, thick film composition, and 1206 package. These parts are electrically interchangeable without circuit redesign. The following parameters must remain constant for direct substitution: resistance value, tolerance band, power rating, package dimensions, and operating temperature range. Direct substitutes include ERJ-8GEYJ683V (Panasonic), MCR18ERTJ683 (Rohm), and RMCF1206JT68K0 (Stackpole).

Upgrade Substitutes (Tighter Tolerance ±1%)

Upgrade substitutes provide improved tolerance specifications (±1% versus ±5%) while maintaining the same 68 kOhms resistance, 0.25W power rating, 1206 package, and operating temperature range. These parts offer enhanced precision for applications requiring tighter component tolerances. The temperature coefficient improves to ±100ppm/°C. Upgrade substitutes include CRG1206F68K (TE Connectivity), ERJ-8ENF6802V (Panasonic), KTR18EZPF6802 (Rohm), MCR18ERTF6802 (Rohm), RC1206FR-0768KL (YAGEO), RC1206JR-0768KL (YAGEO), and RMCF1206FT68K0 (Stackpole).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp Range	Product Status	AEC-Q200
RMC1/8-683JTP	Kamaya Inc.	68k	±5%	0.25	1206	±200	-55 to 155°C	Active	No
ERJ-8GEYJ683V	Panasonic	68k	±5%	0.25	1206	±200	-55 to 155°C	Not For New Designs	Yes
MCR18ERTJ683	Rohm	68k	±5%	0.25	1206	±200	-55 to 155°C	Discontinued	No
RMCF1206JT68K0	Stackpole	68k	±5%	0.25	1206	±200	-55 to 155°C	Active	Yes
CRG1206F68K	TE Connectivity	68k	±1%	0.25	1206	±100	-55 to 155°C	Active	No
ERJ-8ENF6802V	Panasonic	68k	±1%	0.25	1206	±100	-55 to 155°C	Not For New Designs	Yes
KTR18EZPF6802	Rohm	68k	±1%	0.25	1206	±100	-55 to 155°C	Active	Yes
MCR18ERTF6802	Rohm	68k	±1%	0.25	1206	±100	-55 to 155°C	Discontinued	No
RC1206FR-0768KL	YAGEO	68k	±1%	0.25	1206	±100	-55 to 155°C	Active	No
RC1206JR-0768KL	YAGEO	68k	±5%	0.25	1206	±100	-55 to 155°C	Active	No
RMCF1206FT68K0	Stackpole	68k	±1%	0.25	1206	±100	-55 to 155°C	Active	Yes

Engineering Selection Recommendations

For Direct Substitution (±5% Tolerance Requirement)

When the circuit design specifies ±5% tolerance and does not require automotive qualification, RMCF1206JT68K0 (Stackpole Electronics Inc.) is the primary recommendation. This part maintains Active product status, carries AEC-Q200 automotive qualification, and has 87481 units in inventory. RC1206JR-0768KL (YAGEO) provides an alternative with Active status and 136460 units available, though it features moisture-resistant composition and lower temperature coefficient (±100ppm/°C) compared to the original specification.

For applications where AEC-Q200 automotive qualification is not required, ERJ-8GEYJ683V (Panasonic) is electrically equivalent but carries "Not For New Designs" status, indicating limited long-term availability. MCR18ERTJ683 (Rohm) is discontinued at DiGi Electronics and should not be selected for new designs.

For Upgrade Substitution (±1% Tolerance Requirement)

When circuit redesign permits tighter tolerance specifications, RMCF1206FT68K0 (Stackpole Electronics Inc.) is the primary upgrade recommendation. This part is Active, AEC-Q200 qualified, and has 44296 units in inventory. KTR18EZPF6802 (Rohm) provides an alternative with Active status, AEC-Q200 qualification, and high voltage capability, with 12128 units available.

For non-automotive applications, RC1206FR-0768KL (YAGEO) offers Active status with moisture-resistant composition and 55962 units in inventory. CRG1206F68K (TE Connectivity) is Active with 20418 units available but lacks automotive certification.

Parts with "Not For New Designs" or "Discontinued" status should be avoided for new circuit designs unless existing inventory constraints require their use.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMC1/8-683JTP with RMCF1206JT68K0?

A: Yes. RMCF1206JT68K0 is a direct substitute. Both parts specify 68 kOhms ±5% tolerance, 0.25W power rating, 1206 package, and -55°C to 155°C operating range. RMCF1206JT68K0 adds AEC-Q200 automotive qualification and is currently Active with high inventory availability.

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

A: Direct substitutes maintain identical tolerance (±5%), temperature coefficient (±200ppm/°C), and all electrical specifications. Upgrade substitutes improve tolerance to ±1% and reduce temperature coefficient to ±100ppm/°C, requiring circuit analysis to confirm compatibility with tighter specifications.

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

A: Yes, from an electrical standpoint. A ±1% part is more precise and will operate within the ±5% tolerance band. However, circuit design must be reviewed to ensure the improved tolerance does not introduce unintended circuit behavior or cost implications.

Q: Why do some substitutes show "Not For New Designs" status?

A: This status indicates the manufacturer has discontinued or limited production of that part number. While existing inventory may be available, long-term supply cannot be guaranteed. New designs should select parts with Active status.

Q: Are all listed substitutes in the same 1206 package?

A: Yes. All parts listed are 1206 (3216 Metric) package with identical footprint and mounting compatibility. Physical dimensions vary slightly (0.120" to 0.126" length, 0.061" to 0.063" width) but remain within standard 1206 package tolerances.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive electronics qualification standard. Parts with this certification have undergone additional reliability testing for automotive applications. Selection of AEC-Q200 qualified parts is required for automotive circuit designs.

Q: Which substitute has the highest inventory availability?

A: RC1206JR-0768KL (YAGEO) has 136460 units in stock, followed by ERJ-8ENF6802V (Panasonic) with 120417 units. Both are available in high quantities for immediate procurement.

Q: Can I mix different substitute parts in the same circuit board?

A: Yes, provided all selected parts meet the circuit's electrical requirements (resistance value, tolerance, power rating, temperature range). Mixing parts from different manufacturers is acceptable from an electrical standpoint, though design documentation should specify approved part numbers.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message