This is an official STMicroelectronics designation: the part is still available for existing production but is not qualified for new design-ins. The NRND flag does not trigger an immediate last-time-buy, but it signals that the manufacturer intends to phase out the part; stocking a lifetime buy or qualifying an alternate before the next PCN is the prudent move.
STD6NK50ZT4 N-Channel MOSFET, 500 V, 5.6 A, DPAK
MPNSTD6NK50ZT4
NRND
STMicroelectronics SuperMESH™ series, STD6NK50ZT4, N-Channel MOSFET, 500 V Vdss, 5.6 A Id, 1.2 Ohm Rds(on), 24.6 nC Qg, DPAK surface mount, -55°C to 150°C junction temperature.
$1.6100Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | SuperMESH™ |
| FET type | N-Channel |
| Mounting | Surface Mount |
| Drain to source voltage | 500 V |
| Drive voltage (Max rds on, min rds on) | 10V |
| Current - continuous drain (Id) @ 25°C | 5.6A (Tc) |
| Power dissipation | 90W (Tc) |
| Operating temperature | -55°C ~ 150°C (TJ) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Vgs | ±30V |
| Technology | MOSFET (Metal Oxide) |
| Case | TO-252-3, DPak (2 Leads + Tab), SC-63 |
| Vgs(th) (Max) @ id | 4.5V @ 50µA |
| Rds on (Max) @ id, vgs | 1.2Ohm @ 2.8A, 10V |
| Gate charge (Qg) (Max) @ vgs | 24.6 nC @ 10 V |
| Input capacitance (Ciss) (Max) @ vds | 690 pF @ 25 V |
Product details
Frequently asked questions
Where to buy STD6NK50ZT4?
Buyers need immediate sourcing options to fulfill BOM lines or repair stock, and distributor availability directly impacts procurement speed.
Is STD6NK50ZT4 obsolete?
The NRND status means it is not recommended for new designs; buyers must confirm lifecycle to avoid last-time-buy or redesign risks.
What is the price of STD6NK50ZT4?
Price directly affects BOM cost and sourcing decisions, especially for volume purchases or budget-constrained projects.
What is the replacement for STD6NK50ZT4?
For NRND parts, engineers and buyers need a drop-in alternative to continue production without redesign.
What is the STD6NK50ZT4 equivalent?
Equivalent parts are critical for cross-referencing and ensuring design compatibility when the original is unavailable or NRND.
What is the STD6NK50ZT4 pinout?
Design engineers need pin configuration to validate PCB layout and ensure correct connections for the MOSFET.