ETQP3M4R7KVN
Panasonic
Needs validationhigh risk
A strong functional upgrade with much higher current and wider temp range, but requires switching to an SMD package.
Best Alternatives to PK0608-4R7MB
Finding a substitute for the PK0608-4R7MB 4.7µH inductor involves considering functional alternatives. While no direct through-hole replacements were found, several SMD options offer similar or better performance but require a change in board layout.
AI replacement insight
Package riskhigh
Requires board redesign (THT to SMD).
Electrical risklow
Inductance matches, but DCR may be higher.
Can it be replaced directly?
No direct, pin-for-pin replacement for the PK0608-4R7MB has been identified. All suitable electrical alternatives have a different, surface-mount package.
Best replacement path
Transition to an SMD equivalent like Panasonic's ETQP3M4R7KVN for upgraded performance, if a PCB redesign is feasible.
Main risk
The primary risk is the mechanical incompatibility between the through-hole target and surface-mount alternatives, necessitating a PCB layout change.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | PK0608-4R7MB | ETQP3M4R7KVN | NRS5040T4R7NMGK | VLS6045EX-4R7M-H | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Radial Leaded (THT) | SMD (6.4x6.0mm) | 5040 (SMD) | 6045 (SMD) | SMD (6.4x6.0mm) / 5040 (SMD) / 6045 (SMD) — Requires PCB redesign.; NRS5040T4R7NMGK: Requires PCB redesign.; VLS6045EX-4R7M-H: Requires PCB redesign.; FSA0620-4R7MT: Requires PCB redesign. |
| Inductance | 4.7 µH | 4.7 µH | 4.7 µH | 4.7 µH | 4.7 µH — matched; NRS5040T4R7NMGK: matched; VLS6045EX-4R7M-H: matched; FSA0620-4R7MT: matched |
| Current | 3.0 A | 4.6 A (Irms) | 3.3 A (Isat) | 4.2 A (Irms) | 4.6 A (Irms) / 3.3 A (Isat) / 4.2 A (Irms) / 3.5 A (Irms) — Significantly higher current rating.; NRS5040T4R7NMGK: Candidate current rating is slightly higher.; VLS6045EX-4R7M-H: Candidate current rating is higher.; FSA0620-4R7MT: Candidate current rating is higher. |
| Dcr | 0.020 Ω | 0.029 Ω | 0.029 Ω | 0.027 Ω | 0.029 Ω / 0.027 Ω / 0.056 Ω — Higher DCR increases power loss.; NRS5040T4R7NMGK: Higher DCR increases power loss.; VLS6045EX-4R7M-H: Higher DCR increases power loss.; FSA0620-4R7MT: Significantly higher DCR will cause more heat. |
| Temperature | -40°C to +125°C | -55°C to +155°C | - | - | -55°C to +155°C — Wider operating range. |
| Shielding | Unshielded | - | Shielded | Shielded | Shielded — Better EMI performance.; VLS6045EX-4R7M-H: Better EMI performance. |
Application & sourcing insights
Questions & answers
For applications that can use a surface-mount (SMD) part, the Panasonic ETQP3M4R7KVN is a strong alternative with higher current handling. No direct through-hole replacements were found.