RMC1/8-274JTP Equivalent & Substitute Parts

Part Overview

The RMC1/8-274JTP is a 270 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 993 pieces currently in stock. The RMC series represents a standard general-purpose resistor suitable for general electronics applications without automotive qualification requirements.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when design requirements change, or when alternative sourcing improves supply chain resilience. Equivalent parts maintain identical electrical specifications and mechanical compatibility, while upgrade options provide enhanced performance characteristics such as improved tolerance or automotive qualification.

Key Parameters

Parameter	Value
Resistance	270 kOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant (where specified)
Packaging Format	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution logic for the RMC1/8-274JTP is determined by the following critical parameters:

Electrical Equivalence Requirements:

Resistance value: 270 kOhms (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Tolerance: ±5% or better (±1% tolerance parts are upgrades)
Temperature coefficient: ±200ppm/°C or better (±100ppm/°C represents improvement)
Operating temperature range: -55°C to 155°C minimum

Mechanical Compatibility Requirements:

Package type: 1206 (3216 Metric) mandatory
Physical dimensions: Length 3.10mm to 3.20mm, Width 1.55mm to 1.60mm, Height ≤0.70mm
Termination count: 2 terminations required
Composition: Thick film technology

Environmental & Compliance Requirements:

Moisture Sensitivity Level: MSL 1 (Unlimited) required
REACH Status: REACH Unaffected or compliant
ECCN: EAR99 classification
HTSUS: 8533.21.0030

Substitute parts are grouped into two categories:

Direct Equivalents (±5% Tolerance): Parts maintaining identical electrical specifications including ±5% tolerance and ±200ppm/°C temperature coefficient. These provide one-to-one functional replacement without design modification.

Upgrade Options (±1% Tolerance): Parts offering improved tolerance (±1%) and superior temperature coefficient (±100ppm/°C) while maintaining all other compatibility parameters. These are suitable for applications requiring higher precision without circuit redesign.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Features	Product Status	Inventory
RMC1/8-274JTP	Kamaya Inc.	270 kΩ	±5%	0.25	±200	1206	Standard	Active	993
ERJ-8GEYJ274V	Panasonic	270 kΩ	±5%	0.25	±200	1206	AEC-Q200	Not For New Designs	229235
KTR18EZPJ274	Rohm Semiconductor	270 kΩ	±5%	0.25	±200	1206	AEC-Q200, High Voltage	Active	18126
RMCF1206JT270K	Stackpole Electronics	270 kΩ	±5%	0.25	±200	1206	AEC-Q200	Active	6964
CRG1206F270K	TE Connectivity	270 kΩ	±1%	0.25	±100	1206	Standard	Active	20914
ERJ-8ENF2703V	Panasonic	270 kΩ	±1%	0.25	±100	1206	AEC-Q200	Not For New Designs	4955
KTR18EZPF2703	Rohm Semiconductor	270 kΩ	±1%	0.25	±100	1206	AEC-Q200, High Voltage	Active	199386
MCR18ERTF2703	Rohm Semiconductor	270 kΩ	±1%	0.25	±100	1206	Standard	Discontinued at DiGi Electronics	929
RC1206FR-07270KL	YAGEO	270 kΩ	±1%	0.25	±100	1206	Moisture Resistant	Active	2187
RC1206JR-07270KL	YAGEO	270 kΩ	±5%	0.25	±100	1206	Moisture Resistant	Active	5100
RMCF1206FT270K	Stackpole Electronics	270 kΩ	±1%	0.25	±100	1206	AEC-Q200	Active	7699

Engineering Selection Recommendations

Direct Equivalent Selection (±5% Tolerance, ±200ppm/°C):

For applications requiring functional equivalence without performance enhancement, the following parts provide direct substitution:

KTR18EZPJ274 (Rohm Semiconductor) is recommended as the primary equivalent. This part maintains identical electrical specifications while offering Active product status and high inventory availability (18,126 units). The inclusion of AEC-Q200 automotive qualification and high voltage features provides additional design margin without affecting general-purpose applications.

RMCF1206JT270K (Stackpole Electronics) serves as an alternative equivalent with Active status and AEC-Q200 qualification. Inventory of 6,964 units supports consistent supply.

ERJ-8GEYJ274V (Panasonic) is available with 229,235 units in stock but carries "Not For New Designs" status, limiting suitability for new development projects.

Upgrade Selection (±1% Tolerance, ±100ppm/°C):

For applications requiring improved tolerance and temperature stability, upgrade options provide enhanced performance:

KTR18EZPF2703 (Rohm Semiconductor) is the primary upgrade recommendation. This part offers ±1% tolerance and ±100ppm/°C temperature coefficient with Active product status and the highest inventory level (199,386 units). AEC-Q200 and high voltage features are included.

RMCF1206FT270K (Stackpole Electronics) provides upgrade performance with Active status, AEC-Q200 qualification, and 7,699 units available.

RC1206FR-07270KL (YAGEO) offers upgrade specifications with moisture-resistant features and Active status, though inventory is lower at 2,187 units.

CRG1206F270K (TE Connectivity) provides upgrade performance with 20,914 units in stock and Active status, though automotive qualification is not specified.

Compliance Considerations:

All recommended parts maintain ROHS3 compliance, REACH Unaffected status, EAR99 ECCN classification, and MSL 1 moisture sensitivity rating. Parts with AEC-Q200 qualification are suitable for automotive applications; general-purpose applications accept both qualified and non-qualified options.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a direct replacement for the ±5% RMC1/8-274JTP?

A: Yes. The ±1% tolerance parts are upgrades that provide superior performance. Since ±1% tolerance is a subset of ±5% tolerance specifications, any circuit designed for ±5% tolerance will function correctly with ±1% parts. No circuit modification is required.

Q: What is the difference between direct equivalents and upgrade options?

A: Direct equivalents maintain the original ±5% tolerance and ±200ppm/°C temperature coefficient. Upgrade options improve to ±1% tolerance and ±100ppm/°C temperature coefficient. Both categories maintain identical 270 kOhms resistance, 0.25W power rating, 1206 package, and operating temperature range (-55°C to 155°C).

Q: Are AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification represents additional testing and quality assurance beyond standard requirements. Parts with automotive qualification are fully compatible with general-purpose applications and provide enhanced reliability margins.

Q: What does "Not For New Designs" product status mean?

A: This status indicates the manufacturer has discontinued active development and recommends against using the part in new designs. While existing inventory may be available, these parts are not recommended for new projects due to potential future unavailability. Active status parts are preferred for new development.

Q: Can I substitute the RMC1/8-274JTP with a different resistance value?

A: No. Resistance value is a critical electrical parameter. Only parts with exactly 270 kOhms resistance are acceptable substitutes. Different resistance values require circuit redesign and are not considered equivalent parts.

Q: What is the significance of the 1206 package specification?

A: The 1206 (3216 Metric) package defines the physical dimensions and PCB footprint. All substitute parts must use the identical 1206 package to ensure mechanical compatibility with existing circuit board layouts. Different package sizes are not interchangeable without PCB redesign.

Q: Are there differences in physical dimensions between substitute parts?

A: Minor variations exist within acceptable tolerances. Length ranges from 3.10mm to 3.20mm, width from 1.55mm to 1.60mm, and height from 0.65mm to 0.70mm. These variations remain within standard 1206 package specifications and do not affect PCB compatibility.

Q: Which substitute part has the highest inventory availability?

A: KTR18EZPF2703 (Rohm Semiconductor) offers the highest inventory with 199,386 units available. This part combines upgrade specifications (±1% tolerance, ±100ppm/°C), Active product status, AEC-Q200 qualification, and high voltage features.

Q: What is the temperature coefficient and why does it matter?

A: Temperature coefficient (±200ppm/°C or ±100ppm/°C) specifies how much the resistance value changes with temperature. Lower values indicate better stability. The RMC1/8-274JTP has ±200ppm/°C; upgrade parts offer ±100ppm/°C for improved temperature stability in applications with wide operating temperature ranges.

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

A: Yes. All listed substitute parts maintain identical electrical specifications within their tolerance class and are mechanically compatible. Mixing direct equivalents (±5%) or upgrade options (±1%) is acceptable. However, for consistency and supply chain management, using a single part number per design is recommended.

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