ELM5K8473A MOSFET — Specifications & Equivalents
About the ELM5K8473A
The ELM5K8473A is a P-channel MOSFET with a drain–source voltage (VDS) rating of 60 V, a continuous drain current (ID) of 4.8 A and an on-resistance (RDS(on)) of 0.135 Ω. It can dissipate up to 2.8 W and is rated to a junction temperature of 150 °C. It is supplied in the SOT-223 package.
At a glance
- Type: P-channel MOSFET
- Max drain–source voltage (VDS): 60 V
- Max continuous drain current (ID): 4.8 A
- On-resistance (RDS(on)): 0.135 Ω
- Power dissipation (PD): 2.8 W
- Max junction temperature (TJ): 150 °C
- Package: SOT-223
Typical applications
With its 60 V drain–source rating the ELM5K8473A sits in the mid-range class of switching MOSFETs, typically found in 24 V and 48 V industrial and battery systems, motor drives and H-bridges and load and hot-swap switching.
Gate drive and switching notes
Keep gate–source voltage within the ±20 V maximum; exceeding it punctures the gate oxide and destroys the device permanently.
Switching behaviour is characterised by a rise time of 15 ns and an output capacitance (Coss) of 45 pF, which together with the gate drive determines switching loss and the practical upper frequency limit.
Choosing a replacement for the ELM5K8473A
A drop-in substitute for the ELM5K8473A must be the same P-channel type and offer a drain–source rating of at least 60 V, a continuous drain current rating of at least 4.8 A and an on-resistance no higher than 0.135 Ω if efficiency and heat matter.
Mechanically, check the replacement against the SOT-223 footprint and confirm the pin order — parts sharing a package outline do not always share a pinout.
Where the application switches inductive loads or runs near the voltage limit, keep extra headroom rather than choosing a part that only just meets the original numbers.
Frequently asked questions
What is the ELM5K8473A?
The ELM5K8473A is a P-channel MOSFET (metal-oxide-semiconductor field-effect transistor). It is rated for 60 V drain-source and 4.8 A continuous drain current.
What is the maximum voltage of the ELM5K8473A?
The ELM5K8473A has a maximum drain-source voltage (Vds) of 60 V. Treat this as an absolute maximum and design with margin, especially when switching inductive loads.
How much current can the ELM5K8473A handle?
It is rated for 4.8 A of continuous drain current, with power dissipation limited to 2.8 W. Real-world capability depends on your heatsinking and ambient temperature.
What is the on-resistance of the ELM5K8473A?
On-resistance (Rds(on)) is 0.135 Ω. Multiply by the square of your load current to estimate conduction loss.
What package does the ELM5K8473A come in?
It is listed in SOT-223. Verify the pinout of the specific variant, as one outline can carry different pin assignments.
What can I use to replace the ELM5K8473A?
No verified equivalents are listed yet. Choose a part of the same polarity that meets or exceeds every rating above and shares a compatible package and pinout.
Key Specifications
| Type | MOSFET |
|---|---|
| Channel Type | P -Channel |
| Drain-Source Voltage (Vds) | 60 V |
| Gate-Source Voltage (Vgs) | 20 V |
| Drain Current (Id) | 4.8 A |
| Drain-Source On-Resistance (Rds) | 0.135 |
| Rise Time (tr) | 15 nS |
| Output Capacitance (Coss) | 45 pF |
| Junction Temperature (Tj) | 150 °C |
| Package | SOT-223 |
| Power Dissipation (Pd) | 2.8 W |
Equivalent & Replacement Parts
No verified equivalents are listed for ELM5K8473A yet.