Product Overview
60 V N-Channel PowerTrench MOSFET in DPAK, 18 A, 55 Milliohm Max
Condition
Condition: unused, new old stock (NOS). Sold each. Markings legible: Fairchild logo, FDD 5612.
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Product Overview
Fairchild built the FDD5612 on its PowerTrench process: a 60 V N-channel MOSFET in the DPAK (TO-252) three-lead surface-mount package, rated 18 A continuous at a 25 C case with 55 milliohms maximum on-resistance at 10 V gate drive.
Key Features
- N-channel PowerTrench MOSFET
- Drain-source voltage: 60 V
- Gate-source voltage: +/-20 V
- Continuous drain current: 18 A at 25 C case, 13 A at 100 C case
- Pulsed drain current: 100 A
- On-resistance: 55 milliohms max at 10 V gate, 5.4 A (36 milliohms typical); 64 milliohms max at 6 V gate
- Power dissipation: 42 W at 25 C case
- Junction temperature: -55 to +175 C
- Package: DPAK, also listed as TO-252, three-lead surface mount
Applications
- Low-side switch for 12 V and 24 V solenoids, relay coils and brushed DC motors driven from a 10 V gate driver
- Replacing a failed FDD5612 on a power board or DC-DC converter stage laid out for a DPAK MOSFET
- PWM dimming of 12 V LED strips and heater elements in maker and hobby builds
Frequently Asked Questions
What gate voltage does it need?
On-resistance is specified at 10 V gate drive (55 milliohms max) and at 6 V (64 milliohms max). The gate is rated to +/-20 V.
How much current will it carry?
18 A continuous with the case at 25 C, 13 A with the case at 100 C, and 100 A pulsed. Dissipation is 42 W at a 25 C case, so the copper under the tab sets how much of that a real board can use.
How do I tell it apart from other FDD-series MOSFETs?
By the four digits. The FDD prefix spans many Fairchild DPAK MOSFETs with different voltage ratings; this one's device marking is FDD5612.
More pieces cost less each - the price-break table on this page shows what each quantity costs.
PowerTrench was Fairchild's name for cutting the gate down into the silicon instead of laying it across the top, and this DPAK carries the result on a body smaller than a fingertip. Give its tab a wide copper pour; the board is its heatsink.
