Equivalent & Substitute Parts for RMC1/8-433JTP

Part Overview

The RMC1/8-433JTP is a 43 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 976 pieces currently in stock. Substitute parts are necessary when the primary manufacturer part becomes unavailable, when design requirements demand enhanced specifications such as improved tolerance or automotive qualification, or when alternative sourcing is required for supply chain optimization.

Key Parameters

Parameter	Value
Resistance	43 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 ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitute parts for the RMC1/8-433JTP are classified into two categories based on electrical specifications:

Direct Substitutes (Equivalent Specifications): Parts maintaining identical resistance (43 kOhms), tolerance (±5%), power rating (0.25W), and package (1206). These parts are electrically interchangeable with the main part. Direct substitutes include RMCF1206JT43K0 and RC1206JR-0743KL.

Upgrade Substitutes (Enhanced Specifications): Parts with improved tolerance (±1% versus ±5%) and reduced temperature coefficient (±100ppm/°C versus ±200ppm/°C), while maintaining the same resistance value, power rating, and package. These parts provide superior performance characteristics. Upgrade substitutes include ERJ-8ENF4302V, MCR18ERTF4302, RC1206FR-0743KL, and RMCF1206FT43K0.

All substitute parts maintain the 1206 (3216 Metric) package footprint, thick film composition, -55°C to 155°C operating temperature range, and MSL 1 moisture sensitivity rating. Substitution compatibility is determined exclusively by these parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	Product Status	Features
RMC1/8-433JTP	Kamaya Inc.	43 kOhms	±5%	0.25	±200	1206	Active	—
RMCF1206JT43K0	Stackpole Electronics Inc	43 kOhms	±5%	0.25	±200	1206	Active	Automotive AEC-Q200
ERJ-8GEYJ433V	Panasonic Electronic Components	43 kOhms	±5%	0.25	±200	1206	Not For New Designs	Automotive AEC-Q200
RC1206JR-0743KL	YAGEO	43 kOhms	±5%	0.25	±100	1206	Active	Moisture Resistant
ERJ-8ENF4302V	Panasonic Electronic Components	43 kOhms	±1%	0.25	±100	1206	Not For New Designs	Automotive AEC-Q200
MCR18ERTF4302	Rohm Semiconductor	43 kOhms	±1%	0.25	±100	1206	Discontinued at DiGi Electronics	—
RC1206FR-0743KL	YAGEO	43 kOhms	±1%	0.25	±100	1206	Active	Moisture Resistant
RMCF1206FT43K0	Stackpole Electronics Inc	43 kOhms	±1%	0.25	±100	1206	Active	Automotive AEC-Q200

Engineering Selection Recommendations

For Direct Substitution (Equivalent Performance):

RMCF1206JT43K0 (Stackpole Electronics Inc) is the primary direct substitute. This part maintains identical electrical specifications (43 kOhms ±5%, 0.25W, ±200ppm/°C) and package configuration. Product status is Active with 6,956 pieces in inventory. Automotive AEC-Q200 qualification provides additional reliability assurance for demanding applications.

RC1206JR-0743KL (YAGEO) provides equivalent resistance and tolerance specifications with Active product status and 6,982 pieces available. This part features moisture-resistant construction and maintains the required 1206 package footprint.

ERJ-8GEYJ433V (Panasonic Electronic Components) offers equivalent electrical specifications with Automotive AEC-Q200 qualification. However, product status is listed as Not For New Designs, limiting suitability for new development projects despite 55,126 pieces in stock.

For Upgraded Performance:

RMCF1206FT43K0 (Stackpole Electronics Inc) is recommended for applications requiring improved tolerance and temperature stability. This part provides ±1% tolerance and ±100ppm/°C temperature coefficient while maintaining Active product status and Automotive AEC-Q200 qualification. Inventory of 9,343 pieces supports production requirements.

RC1206FR-0743KL (YAGEO) delivers ±1% tolerance with moisture-resistant features and Active product status. With 37,861 pieces in inventory, this part offers superior availability for high-volume applications.

ERJ-8ENF4302V (Panasonic Electronic Components) provides ±1% tolerance and Automotive AEC-Q200 qualification with 62,587 pieces in stock. Product status is Not For New Designs.

MCR18ERTF4302 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs despite ±1% tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206JT43K0 be used as a direct replacement for RMC1/8-433JTP?

A: Yes. Both parts share identical resistance (43 kOhms), tolerance (±5%), power rating (0.25W), temperature coefficient (±200ppm/°C), and 1206 package configuration. Electrical performance is equivalent. RMCF1206JT43K0 includes Automotive AEC-Q200 qualification, providing additional reliability assurance.

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

A: Direct substitutes maintain all electrical specifications of the original part (RMC1/8-433JTP). Upgrade substitutes improve tolerance from ±5% to ±1% and reduce temperature coefficient from ±200ppm/°C to ±100ppm/°C, while maintaining the same resistance value and package. Upgrade substitutes are suitable when circuit design permits or requires enhanced accuracy.

Q: Are all substitute parts available in 1206 package?

A: Yes. All listed substitute parts are manufactured in 1206 (3216 Metric) package configuration, ensuring mechanical and electrical compatibility with the original part footprint.

Q: Which substitute part has the highest inventory availability?

A: ERJ-8ENF4302V (Panasonic Electronic Components) has the highest inventory with 62,587 pieces in stock. However, this part carries Not For New Designs product status. For new designs, RC1206FR-0743KL (YAGEO) offers 37,861 pieces with Active product status.

Q: Can I use ERJ-8GEYJ433V or ERJ-8ENF4302V for new product development?

A: Both Panasonic parts carry Not For New Designs product status. These parts should not be selected for new development projects. Use Active status alternatives such as RMCF1206JT43K0, RC1206JR-0743KL, RC1206FR-0743KL, or RMCF1206FT43K0 instead.

Q: What does Automotive AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry qualification standard for passive components. Parts with this rating have undergone additional reliability testing and are suitable for automotive applications. RMCF1206JT43K0, ERJ-8GEYJ433V, ERJ-8ENF4302V, and RMCF1206FT43K0 carry this qualification.

Q: Is MCR18ERTF4302 a viable substitute option?

A: MCR18ERTF4302 is discontinued at DiGi Electronics and should not be selected for new designs or ongoing production. Alternative upgrade substitutes with Active product status are available.

Q: Do all substitute parts have the same operating temperature range?

A: Yes. All substitute parts operate across the -55°C to 155°C temperature range, matching the original RMC1/8-433JTP specification.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 indicates unlimited shelf life without moisture sensitivity concerns. All listed parts, including the original and all substitutes, carry this rating, ensuring consistent handling and storage requirements.

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