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RMC1/8-154JTP Equivalent & Substitute Parts Reference
Part Overview
The RMC1/8-154JTP is a 150 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 945 pieces currently in stock. The RMC series represents a standard general-purpose resistor suitable for general electronics applications across industrial and commercial segments.
Substitute parts are necessary when the original manufacturer part becomes unavailable, when design requirements shift toward higher tolerance specifications, or when automotive-grade certifications are required for specific applications. The following equivalent and substitute parts maintain the core electrical specifications while offering alternative sourcing options and enhanced performance characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Type |
|---|---|---|
| Resistance | 150 kOhms | Core Electrical |
| Tolerance | ±5% | Core Electrical |
| Power Rating | 0.25W (1/4W) | Core Electrical |
| Package / Case | 1206 (3216 Metric) | Mechanical |
| Composition | Thick Film | Technology |
| Temperature Coefficient | ±200ppm/°C | Performance |
| Operating Temperature Range | -55°C ~ 155°C | Performance |
| Moisture Sensitivity Level | 1 (Unlimited) | Environmental |
| Number of Terminations | 2 | Mechanical |
Substitute Part Grouping Explanation
Substitution logic for the RMC1/8-154JTP is based on the following critical parameters that must remain constant or improve:
Mandatory Matching Parameters:
- Resistance value: 150 kOhms (exact match required)
- Package / Case: 1206 (3216 Metric) (exact match required)
- Power Rating: 0.25W minimum (equal or higher acceptable)
- Composition: Thick Film (technology match required)
- Operating Temperature Range: -55°C ~ 155°C minimum (equal or wider acceptable)
- Moisture Sensitivity Level: 1 (Unlimited) minimum (equal or better acceptable)
Allowable Variations:
- Tolerance: ±5% (baseline) to ±1% (upgrade acceptable)
- Temperature Coefficient: ±200ppm/°C (baseline) to ±100ppm/°C (upgrade acceptable)
- Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (interchangeable)
- Certifications: AEC-Q200 automotive qualification (optional enhancement)
- Features: Moisture Resistant or High Voltage (optional enhancements)
Substitute parts are categorized as Direct Equivalents (matching all baseline specifications) or Upgrades (improved tolerance, temperature coefficient, or certifications while maintaining core functionality).
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Op Temp Range | Package | Product Status | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| RMC1/8-154JTP | Kamaya Inc. | 150 kOhms | ±5% | 0.25 | ±200 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| MCR18ERTJ154 | Rohm Semiconductor | 150 kOhms | ±5% | 0.25 | ±200 | -55°C ~ 155°C | 1206 | Discontinued at DiGi Electronics | Cut Tape (CT) & Digi-Reel® |
| RMCF1206JT150K | Stackpole Electronics Inc | 150 kOhms | ±5% | 0.25 | ±200 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| CRG1206F150K | TE Connectivity Passive Product | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| ERJ-8ENF1503V | Panasonic Electronic Components | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Not For New Designs | Tape & Reel (TR) |
| KTR18EZPF1503 | Rohm Semiconductor | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| MCR18ERTF1503 | Rohm Semiconductor | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Discontinued at DiGi Electronics | Cut Tape (CT) & Digi-Reel® |
| RC1206FR-07150KL | YAGEO | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Cut Tape (CT) & Digi-Reel® |
| RC1206JR-07150KL | YAGEO | 150 kOhms | ±5% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| RMCF1206FG150K | Stackpole Electronics Inc | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
| RMCF1206FT150K | Stackpole Electronics Inc | 150 kOhms | ±1% | 0.25 | ±100 | -55°C ~ 155°C | 1206 | Active | Tape & Reel (TR) |
Engineering Selection Recommendations
Direct Equivalent Selection (±5% Tolerance, ±200ppm/°C):
RMCF1206JT150K (Stackpole Electronics Inc) is the recommended direct equivalent. This part maintains identical electrical specifications to the RMC1/8-154JTP while offering Active product status and higher inventory availability (16,862 pieces). The RMCF1206JT150K includes Automotive AEC-Q200 certification, providing enhanced reliability for applications requiring automotive-grade components without changing the baseline tolerance or temperature coefficient specifications.
RC1206JR-07150KL (YAGEO) provides an alternative direct equivalent with Active status and substantial inventory (29,317 pieces). This part includes Moisture Resistant features and maintains ±5% tolerance with improved temperature coefficient (±100ppm/°C versus ±200ppm/°C), offering better long-term stability at no cost penalty.
MCR18ERTJ154 (Rohm Semiconductor) matches all baseline specifications but carries Discontinued at DiGi Electronics status, limiting long-term availability for production designs.
Upgrade Selection (±1% Tolerance, ±100ppm/°C):
RMCF1206FT150K (Stackpole Electronics Inc) is the primary upgrade option. This part improves tolerance to ±1% and reduces temperature coefficient to ±100ppm/°C while maintaining Automotive AEC-Q200 certification and Active product status. With 98,599 pieces in inventory, this part provides superior performance characteristics for applications requiring tighter tolerance control and improved temperature stability.
KTR18EZPF1503 (Rohm Semiconductor) offers the highest inventory availability (222,408 pieces) among upgrade options. This part combines ±1% tolerance, ±100ppm/°C temperature coefficient, Automotive AEC-Q200 certification, and High Voltage features. Active product status ensures long-term availability.
RC1206FR-07150KL (YAGEO) provides ±1% tolerance with Moisture Resistant features and Active status. With 212,273 pieces available, this part offers excellent supply security for upgrade applications.
CRG1206F150K (TE Connectivity Passive Product) delivers ±1% tolerance and ±100ppm/°C temperature coefficient with Active status and 19,830 pieces in inventory, suitable for applications requiring tighter tolerance specifications.
Avoid for New Designs:
ERJ-8ENF1503V (Panasonic Electronic Components) carries Not For New Designs status despite offering ±1% tolerance and AEC-Q200 certification. MCR18ERTF1503 (Rohm Semiconductor) is Discontinued at DiGi Electronics, limiting suitability for ongoing production requirements.
Frequently Asked Questions (FAQ)
Q: Can I substitute RMC1/8-154JTP with RMCF1206JT150K in my existing design?
A: Yes. RMCF1206JT150K is a direct equivalent maintaining all core electrical specifications: 150 kOhms ±5%, 0.25W power rating, 1206 package, and -55°C ~ 155°C operating range. The addition of Automotive AEC-Q200 certification enhances reliability without affecting baseline performance. Both parts use Tape & Reel packaging and are compatible with standard pick-and-place assembly equipment.
Q: What is the difference between ±5% and ±1% tolerance specifications?
A: Tolerance defines the maximum deviation from the nominal resistance value. RMC1/8-154JTP with ±5% tolerance allows resistance values between 142.5 kOhms and 157.5 kOhms. Upgrade parts with ±1% tolerance restrict values to 148.5 kOhms and 151.5 kOhms. Applications requiring precise voltage dividers, filter networks, or reference circuits benefit from ±1% tolerance. General-purpose circuits typically function within ±5% tolerance.
Q: Why do some substitute parts have ±100ppm/°C temperature coefficient instead of ±200ppm/°C?
A: Temperature coefficient measures resistance change per degree Celsius. ±100ppm/°C represents half the drift rate of ±200ppm/°C. Over a 100°C temperature swing, a ±200ppm/°C resistor drifts approximately 2%, while a ±100ppm/°C resistor drifts approximately 1%. Applications with wide operating temperature ranges or requiring stable gain in amplifier circuits benefit from lower temperature coefficients.
Q: Are Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) packaging interchangeable?
A: Both packaging formats contain identical components on standard 8mm tape with 4mm pitch spacing, compatible with industry-standard pick-and-place equipment. Cut Tape packaging is supplied in 500-piece or 1000-piece quantities on tape without reel, while Tape & Reel packaging includes a plastic reel for automated handling. Selection depends on assembly line equipment and volume requirements. Both formats are mechanically and electrically equivalent.
Q: What does Automotive AEC-Q200 certification mean?
A: AEC-Q200 is the Automotive Electronics Council qualification standard for passive components. Parts meeting this standard undergo enhanced testing for reliability, temperature cycling, moisture resistance, and long-term stability. AEC-Q200 certification is required for automotive applications but provides no functional change to general-purpose electronics. Non-automotive applications may use AEC-Q200 parts without penalty.
Q: Can I use RC1206FR-07150KL (±1% tolerance) as a direct replacement for RMC1/8-154JTP (±5% tolerance)?
A: Yes. RC1206FR-07150KL is a functional upgrade. The ±1% tolerance is tighter than the ±5% requirement, meaning any circuit designed for ±5% tolerance operates correctly with ±1% components. The improved tolerance provides better circuit performance without design modification. This represents a one-way compatibility: tighter tolerance parts substitute for looser tolerance requirements, but not vice versa.
Q: Which substitute part offers the best long-term availability?
A: KTR18EZPF1503 (Rohm Semiconductor) provides the highest inventory level at 222,408 pieces with Active product status. This part combines availability security with ±1% tolerance, ±100ppm/°C temperature coefficient, Automotive AEC-Q200 certification, and High Voltage features. For applications requiring guaranteed long-term supply, this part represents the optimal selection.
Q: Are all substitute parts RoHS3 compliant?
A: All substitute parts listed carry RoHS3 Compliant status. The original RMC1/8-154JTP does not specify RoHS status in the provided data. RoHS3 compliance indicates the part contains no restricted substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs) and meets environmental regulations for electronics manufacturing in the European Union and equivalent jurisdictions.
Q: What is Moisture Sensitivity Level (MSL) 1?
A: MSL 1 (Unlimited) indicates the component requires no special moisture protection during storage or handling. The part can be stored at room temperature and humidity without desiccant packaging or moisture barriers. All listed parts carry MSL 1 rating, eliminating moisture management complexity in manufacturing and storage.
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