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RMC1/10-392JTP Equivalent & Substitute Parts
Part Overview
The RMC1/10-392JTP is a 3.9 kOhms ±5% 0.125W (1/8W) chip resistor manufactured by Kamaya Inc. in 0805 (2012 Metric) package format. This thick film resistor operates across -55°C to 155°C and is supplied in Tape & Reel packaging. The part is currently Active in product status with 1109 pieces in stock inventory.
Equivalent and substitute parts are necessary when the primary part experiences supply constraints, inventory depletion, or when design requirements necessitate enhanced specifications such as improved tolerance or automotive-grade certifications. This reference provides direct equivalents and upgraded alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 3.9 kOhms |
| Tolerance | ±5% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±200ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
| Terminations | 2 |
| Packaging Type | Tape & Reel (TR) |
Substitute Part Grouping Explanation
Substitute parts are classified into two categories based on electrical specifications:
Direct Equivalents (Tolerance ±5%): Parts that maintain identical electrical specifications to the RMC1/10-392JTP, including 3.9 kOhms resistance, ±5% tolerance, and ±200ppm/°C temperature coefficient. These parts are interchangeable without circuit redesign.
Upgraded Alternatives (Tolerance ±1%): Parts that provide enhanced tolerance (±1% versus ±5%) and improved temperature coefficient (±100ppm/°C versus ±200ppm/°C). These upgrades are suitable for applications requiring tighter component tolerances while maintaining the same 3.9 kOhms resistance, 0.125W power rating, and 0805 package format.
Key Substitution Criteria:
- Resistance value: 3.9 kOhms (mandatory match)
- Power rating: 0.125W / 1/8W (mandatory match)
- Package: 0805 (2012 Metric) (mandatory match)
- Operating temperature: -55°C ~ 155°C (mandatory match)
- Composition: Thick Film (mandatory match)
- Terminations: 2 (mandatory match)
- Moisture Sensitivity: MSL 1 (mandatory match)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff | Package | Features | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|
| RMC1/10-392JTP | Kamaya Inc. | 3.9 kΩ | ±5% | 0.125 | ±200ppm/°C | 0805 | — | Active | 1109 Pcs |
| Direct Equivalents (±5% Tolerance) | |||||||||
| ERJ-6GEYJ392V | Panasonic Electronic Components | 3.9 kΩ | ±5% | 0.125 | ±200ppm/°C | 0805 | Automotive AEC-Q200 | Active | 89000 Pcs |
| RMCF0805JT3K90 | Stackpole Electronics Inc | 3.9 kΩ | ±5% | 0.125 | ±200ppm/°C | 0805 | Automotive AEC-Q200 | Active | 120269 Pcs |
| RC0805JR-073K9L | YAGEO | 3.9 kΩ | ±5% | 0.125 | ±100ppm/°C | 0805 | Moisture Resistant | Active | 10400 Pcs |
| Upgraded Alternatives (±1% Tolerance) | |||||||||
| CRG0805F3K9 | TE Connectivity Passive Product | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | — | Active | 242977 Pcs |
| ERJ-6ENF3901V | Panasonic Electronic Components | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | Automotive AEC-Q200 | Active | 74021 Pcs |
| KTR10EZPF3901 | Rohm Semiconductor | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | Automotive AEC-Q200, High Voltage | Active | 12650 Pcs |
| MCR10ERTF3901 | Rohm Semiconductor | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | — | Discontinued at DiGi Electronics | 998 Pcs |
| RC0805FR-073K9L | YAGEO | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | Moisture Resistant | Active | 7200 Pcs |
| RMCF0805FT3K90 | Stackpole Electronics Inc | 3.9 kΩ | ±1% | 0.125 | ±100ppm/°C | 0805 | Automotive AEC-Q200 | Active | 174245 Pcs |
Engineering Selection Recommendations
For Direct Equivalent Selection (±5% Tolerance):
ERJ-6GEYJ392V and RMCF0805JT3K90 are direct electrical equivalents with identical tolerance and temperature coefficient specifications. Both parts carry Automotive AEC-Q200 certification, providing enhanced reliability for automotive applications. RMCF0805JT3K90 offers superior inventory availability (120269 pieces) and is recommended for high-volume procurement. ERJ-6GEYJ392V provides an alternative with substantial inventory (89000 pieces) and Panasonic manufacturing heritage.
RC0805JR-073K9L maintains ±5% tolerance compatibility while offering improved temperature coefficient (±100ppm/°C) and moisture-resistant construction. This part is suitable for applications where environmental protection is beneficial without requiring tolerance upgrades.
For Upgraded Selection (±1% Tolerance):
RMCF0805FT3K90 (Stackpole Electronics Inc) is the primary upgrade recommendation, combining ±1% tolerance, Automotive AEC-Q200 certification, and the highest inventory availability (174245 pieces) among upgraded alternatives. This part is suitable for precision applications requiring tighter component tolerances.
ERJ-6ENF3901V provides an alternative upgrade path with Automotive AEC-Q200 certification and Panasonic manufacturing. Inventory availability is adequate (74021 pieces) for most applications.
CRG0805F3K9 (TE Connectivity) offers the highest inventory level (242977 pieces) among all alternatives and provides ±1% tolerance with improved temperature coefficient. This part is recommended when maximum supply availability is critical.
KTR10EZPF3901 includes High Voltage features in addition to Automotive AEC-Q200 certification and ±1% tolerance, suitable for applications requiring enhanced voltage performance.
Avoid: MCR10ERTF3901 is discontinued at DiGi Electronics with limited inventory (998 pieces) and should not be selected for new designs or long-term production.
Frequently Asked Questions (FAQ)
Q: Can I substitute RMC1/10-392JTP with ERJ-6GEYJ392V or RMCF0805JT3K90 without circuit modification?
A: Yes. Both parts are direct electrical equivalents with identical 3.9 kOhms resistance, ±5% tolerance, 0.125W power rating, and 0805 package. They maintain the same operating temperature range (-55°C to 155°C) and thermal characteristics. No circuit redesign is required.
Q: What is the difference between direct equivalents and upgraded alternatives?
A: Direct equivalents (ERJ-6GEYJ392V, RMCF0805JT3K90, RC0805JR-073K9L) maintain ±5% tolerance and ±200ppm/°C temperature coefficient identical to the RMC1/10-392JTP. Upgraded alternatives (CRG0805F3K9, ERJ-6ENF3901V, KTR10EZPF3901, RMCF0805FT3K90, RC0805FR-073K9L) provide ±1% tolerance and ±100ppm/°C temperature coefficient, offering improved precision for applications requiring tighter component specifications.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts carry RoHS3 compliance status and are REACH unaffected, meeting current environmental and regulatory requirements.
Q: Which substitute part has the best inventory availability?
A: CRG0805F3K9 (TE Connectivity) offers the highest inventory level at 242977 pieces. For direct equivalents, RMCF0805JT3K90 provides 120269 pieces. For upgraded alternatives with automotive certification, RMCF0805FT3K90 offers 174245 pieces.
Q: Can I use upgraded alternatives (±1% tolerance) in place of the original ±5% part?
A: Yes. Upgraded alternatives with ±1% tolerance are electrically compatible and provide superior precision. They can be used as direct substitutes in any application where the original RMC1/10-392JTP is specified. The tighter tolerance represents an improvement in component accuracy.
Q: What does Automotive AEC-Q200 certification mean?
A: AEC-Q200 is an automotive industry qualification standard for passive components. Parts carrying this certification have undergone rigorous testing for reliability, temperature cycling, and performance stability in automotive environments. This certification is beneficial for automotive applications but does not prevent use in non-automotive circuits.
Q: Are there packaging differences between substitute parts?
A: Most substitute parts are supplied in Tape & Reel (TR) packaging identical to the RMC1/10-392JTP. RC0805JR-073K9L, RC0805FR-073K9L, and MCR10ERTF3901 are supplied in Cut Tape (CT) & Digi-Reel® packaging. Both packaging formats are compatible with standard pick-and-place assembly equipment; verify your procurement and assembly processes support the selected packaging type.
Q: Why is MCR10ERTF3901 listed if it is discontinued?
A: MCR10ERTF3901 is included for reference purposes only, as it appears in the original substitute list. This part is discontinued at DiGi Electronics with minimal remaining inventory (998 pieces) and should not be selected for new designs or production applications. Select alternative parts from the active product list instead.
Q: What is Moisture Sensitivity Level (MSL) 1?
A: MSL 1 indicates unlimited shelf life without moisture-related degradation. All listed parts carry MSL 1 rating, meaning they do not require special moisture-control storage or handling procedures and can be stored under standard conditions indefinitely.
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