RMC1/8-1R00FTP Equivalent & Substitute Parts

Part Overview

The RMC1/8-1R00FTP is a 1 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Kamaya Inc. This component is classified as Active product status with unlimited moisture sensitivity level (MSL 1). The part is REACH Unaffected and carries EAR99 ECCN classification. Substitute parts are necessary to address supply chain continuity, alternative sourcing options, or specific application requirements such as automotive qualification or enhanced environmental performance.

Key Parameters

Parameter	Value
Resistance	1 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the RMC1/8-1R00FTP is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Resistance value: 1 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2
Moisture sensitivity level: 1 (Unlimited)

All five substitute parts listed meet these mandatory criteria. Substitutes are grouped by additional features and certifications:

Group 1 - Standard Industrial Grade: CRG1206F1R0 (TE Connectivity), RC1206FR-071RL (YAGEO)

Group 2 - Automotive AEC-Q200 Qualified: ERJ-8RQF1R0V (Panasonic), KTR18EZPF1R00 (Rohm), RMCF1206FT1R00 (Stackpole)

Parameter Comparison

Parameter	RMC1/8-1R00FTP	CRG1206F1R0	ERJ-8RQF1R0V	KTR18EZPF1R00	RC1206FR-071RL	RMCF1206FT1R00
Manufacturer	Kamaya Inc.	TE Connectivity	Panasonic	Rohm Semiconductor	YAGEO	Stackpole Electronics
Resistance	1 Ohms	1 Ohms	1 Ohms	1 Ohms	1 Ohms	1 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power (Watts)	0.25W	0.25W	0.25W	0.25W	0.25W	0.25W
Package / Case	1206 (3216 Metric)	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	Thick Film
Temperature Coefficient	-200/+500ppm/°C	±200ppm/°C	±200ppm/°C	±100ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Size / Dimension (L x W)	0.122" x 0.063" (3.10mm x 1.60mm)	0.122" x 0.061" (3.10mm x 1.55mm)	0.126" x 0.063" (3.20mm x 1.60mm)	0.126" x 0.063" (3.20mm x 1.60mm)	0.122" x 0.063" (3.10mm x 1.60mm)	0.126" x 0.063" (3.20mm x 1.60mm)
Height - Seated (Max)	0.025" (0.65mm)	0.026" (0.65mm)	0.028" (0.70mm)	0.026" (0.65mm)	0.026" (0.65mm)	0.028" (0.70mm)
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	Vendor Undefined	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Automotive AEC-Q200	Not qualified	Not qualified	Qualified	Qualified	Not qualified	Qualified
Special Features	None specified	None specified	Current Sense	High Voltage	Moisture Resistant	None specified

Engineering Selection Recommendations

For Standard Industrial Applications: CRG1206F1R0 and RC1206FR-071RL are direct functional equivalents to RMC1/8-1R00FTP. Both maintain identical electrical specifications and package dimensions. RC1206FR-071RL includes moisture-resistant features and carries ROHS3 compliance. CRG1206F1R0 is manufactured by TE Connectivity with ROHS3 compliance and Neohm series designation.

For Automotive Applications: ERJ-8RQF1R0V, KTR18EZPF1R00, and RMCF1206FT1R00 are qualified to AEC-Q200 automotive standards. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability and qualification documentation. ERJ-8RQF1R0V includes current sense capability. KTR18EZPF1R00 features high voltage rating with the tightest temperature coefficient (±100ppm/°C). RMCF1206FT1R00 is manufactured by Stackpole Electronics with AEC-Q200 qualification.

Compliance Considerations: All substitute parts carry ROHS3 compliance. REACH status is REACH Unaffected for all parts except CRG1206F1R0 (Vendor Undefined). All parts maintain MSL 1 (Unlimited) rating, ensuring no moisture sensitivity constraints during storage and handling.

Dimensional Compatibility: RMC1/8-1R00FTP and RC1206FR-071RL share identical dimensions (0.122" x 0.063" x 0.025" max height). CRG1206F1R0 has slightly reduced width (0.061" vs 0.063"). Automotive-qualified parts (ERJ-8RQF1R0V, KTR18EZPF1R00, RMCF1206FT1R00) have increased length (0.126" vs 0.122") and height (0.028" vs 0.025" max). Verify PCB layout clearances for automotive-qualified substitutes.

Frequently Asked Questions (FAQ)

Q: Can I substitute RMC1/8-1R00FTP with any of the listed parts in my circuit?

A: Yes, all listed parts meet the mandatory electrical and mechanical equivalence criteria: 1 Ohm ±1% resistance, 0.25W power rating, 1206 package, thick film composition, and -55°C to 155°C operating range. However, verify PCB layout clearances, as automotive-qualified parts have slightly larger dimensions.

Q: What is the difference between standard and automotive-qualified substitutes?

A: Automotive-qualified parts (ERJ-8RQF1R0V, KTR18EZPF1R00, RMCF1206FT1R00) carry AEC-Q200 certification, indicating enhanced reliability testing and qualification for automotive applications. Standard parts (CRG1206F1R0, RC1206FR-071RL) are suitable for general industrial use. Automotive qualification is not required for non-automotive applications.

Q: Are there packaging differences between these parts?

A: RMC1/8-1R00FTP is supplied in Tape & Reel (TR) packaging. RC1206FR-071RL uses Cut Tape (CT) & Digi-Reel® packaging. All other substitutes use Tape & Reel (TR). Verify packaging compatibility with your assembly process requirements.

Q: Which substitute has the best temperature stability?

A: KTR18EZPF1R00 has the tightest temperature coefficient at ±100ppm/°C, compared to ±200ppm/°C for most other substitutes. RMC1/8-1R00FTP specifies -200/+500ppm/°C, which is asymmetrical. For applications requiring superior temperature stability, KTR18EZPF1R00 is the optimal choice.

Q: Do all substitutes have the same moisture sensitivity level?

A: Yes, all parts including RMC1/8-1R00FTP carry MSL 1 (Unlimited), indicating no moisture sensitivity constraints. All parts can be stored and handled without special moisture control measures.

Q: What is the inventory availability for these parts?

A: RMC1/8-1R00FTP has 964 pieces in stock. RC1206FR-071RL has the highest availability at 500,400 pieces. ERJ-8RQF1R0V has 438,223 pieces. RMCF1206FT1R00 has 456,828 pieces. KTR18EZPF1R00 has 61,949 pieces. CRG1206F1R0 has 982 pieces. Availability may vary by supplier and time.

Q: Are all substitutes ROHS3 compliant?

A: All substitute parts are ROHS3 compliant. RMC1/8-1R00FTP does not specify RoHS status in the provided data. CRG1206F1R0 lists REACH status as Vendor Undefined; all other parts are REACH Unaffected.

Q: Can I use ERJ-8RQF1R0V for current sensing applications?

A: ERJ-8RQF1R0V is designated as a current sense resistor. While it meets all electrical equivalence criteria for standard applications, its current sense designation indicates it is optimized for current measurement circuits. Verify that your application requirements align with current sense resistor specifications.

Q: What are the dimensional constraints for PCB layout?

A: RMC1/8-1R00FTP and RC1206FR-071RL are the most compact at 0.122" length and 0.025" maximum height. Automotive-qualified parts are larger: 0.126" length and 0.028" maximum height. If PCB space is constrained, standard industrial parts provide better fit. Verify clearances with your PCB design tools.

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