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KTR03EZPJ435 Equivalent & Substitute Parts
Part Overview
The KTR03EZPJ435 is a 4.3 MOhms ±5% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Rohm Semiconductor, this component meets automotive AEC-Q200 qualification and high voltage specifications. The part is active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts become necessary due to inventory constraints, supply chain disruptions, or design optimization requirements where tolerance or temperature coefficient improvements are acceptable within the application circuit.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 4.3 MOhms |
| Tolerance | ±5% |
| Power Rating | 0.1W (1/10W) |
| Package | 0603 (1608 Metric) |
| Composition | Thick Film |
| Operating Temperature Range | -55°C to 155°C |
| Compliance | ROHS3, AEC-Q200 |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict adherence to the following parameters:
- Resistance value: 4.3 MOhms (exact match required)
- Package: 0603 (1608 Metric) form factor (exact match required)
- Power rating: 0.1W minimum (equal or higher acceptable)
- Composition: Thick film technology
- Operating temperature range: -55°C to 155°C minimum coverage
- Compliance: ROHS3 and active product status
Tolerance variations (±5% to ±1%) are permitted substitutions when circuit design allows tighter tolerance specifications. Temperature coefficient differences are acceptable provided operating temperature range requirements are met. Automotive AEC-Q200 rating is maintained across all qualified substitutes.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Temp Coeff (ppm/°C) | Operating Temp (°C) | AEC-Q200 | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|
| KTR03EZPJ435 | Rohm Semiconductor | 4.3 MOhms | ±5% | 0.1 | ±200 | -55 to 155 | Yes | 859 |
| KTR03EZPF4304 | Rohm Semiconductor | 4.3 MOhms | ±1% | 0.1 | ±100 | -55 to 155 | Yes | 18350 |
| CRCW06034M30JNEA | Vishay Dale | 4.3 MOhms | ±5% | 0.1 | ±200 | -55 to 155 | Yes | 19390 |
| RC0603JR-074M3L | YAGEO | 4.3 MOhms | ±5% | 0.1 | ±100 | -55 to 155 | No | 10346 |
| RMCF0603FT4M30 | Stackpole Electronics Inc | 4.3 MOhms | ±1% | 0.1 | ±200 | -55 to 155 | Yes | 34492 |
| RMCF0603JT4M30 | Stackpole Electronics Inc | 4.3 MOhms | ±5% | 0.1 | ±200 | -55 to 155 | Yes | 2696 |
Engineering Selection Recommendations
All substitute parts maintain the 0603 package form factor and 4.3 MOhms resistance specification. Selection should prioritize parts with active product status and full compliance certifications.
For applications requiring automotive qualification, KTR03EZPF4304, RMCF0603FT4M30, RMCF0603JT4M30, and CRCW06034M30JNEA all carry AEC-Q200 ratings equivalent to the primary part.
For applications where tolerance tightening improves circuit performance, KTR03EZPF4304 and RMCF0603FT4M30 offer ±1% tolerance with maintained AEC-Q200 qualification and superior temperature coefficient stability (±100ppm/°C).
RC0603JR-074M3L provides equivalent electrical performance with moisture-resistant construction but lacks automotive AEC-Q200 certification; this part is suitable only for non-automotive applications.
Inventory availability ranges from 859 to 34,492 pieces across the substitute group, with RMCF0603FT4M30 offering the highest stock level.
Frequently Asked Questions (FAQ)
Q: Can KTR03EZPF4304 replace KTR03EZPJ435 in automotive applications?
A: Yes. Both parts are Rohm Semiconductor products in 0603 package with 4.3 MOhms resistance, 0.1W power rating, and AEC-Q200 automotive qualification. KTR03EZPF4304 provides improved tolerance (±1% vs ±5%) and lower temperature coefficient (±100ppm/°C vs ±200ppm/°C).
Q: Is RC0603JR-074M3L suitable for automotive circuits?
A: No. While RC0603JR-074M3L meets the electrical specifications (4.3 MOhms, ±5%, 0603 package), it lacks AEC-Q200 automotive qualification. This part is restricted to non-automotive applications only.
Q: What is the physical difference between substitute parts?
A: All parts use 0603 (1608 Metric) package with minor dimensional variations. CRCW06034M30JNEA measures 0.061" L x 0.033" W with 0.020" maximum seated height. RMCF series measures 0.061" L x 0.031" W with 0.022" maximum seated height. KTR and RC series measure 0.063" L x 0.031" W with 0.022" maximum seated height. These variations are within standard 0603 package tolerances and do not affect PCB layout compatibility.
Q: Which substitute offers the best temperature stability?
A: KTR03EZPF4304 and RC0603JR-074M3L both feature ±100ppm/°C temperature coefficient, compared to ±200ppm/°C for other substitutes. For automotive applications, KTR03EZPF4304 is preferred due to AEC-Q200 certification.
Q: Are all substitutes ROHS3 compliant?
A: KTR03EZPF4304, RC0603JR-074M3L, RMCF0603FT4M30, and RMCF0603JT4M30 are confirmed ROHS3 compliant. CRCW06034M30JNEA compliance status is not specified in the provided data.
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