CRTJ250N03L2-G CR Micro 30V 5.8A N-Channel MOSFET SOT-23

The CR Micro CRTJ250N03L2-G is a 30 V 5.8 A N-channel MOSFET in a SOT-23 package, built on the Trench process. On-resistance is 23 mΩ typical and 28 mΩ maximum at a 10 V gate drive; 34 mΩ typical at 4.5 V, so it also works from a logic-level driver; gate charge is 7.12 nC with 363 pF input capacitance; threshold voltage spans 1 to 2 V.

Key Specifications

Same-Rating Selection Table

2 part numbers share the same 30 / SOT-23 / N rating — sorted by rds(on) typ.

Process Technology

Trench — the gate is etched vertically into the drift region, multiplying channel width per unit area. Lowest Rds(on) in the sub-200 V range; the trade-off is higher Qg and a more fragile body diode under hard commutation.

Applications

Low-voltage DC-DC converters, load switches, battery protection, and brushed or stepper motor drive.

Selection Notes

• Rds(on) rises with junction temperature. Size the heatsink against the hot value given in the datasheet, not the 25 °C number in the table above.
• If the gate is driven below 10 V, check the 4.5 V Rds(on) line — parts without that rating are not characterised for logic-level drive.
• For high-frequency stages compare Qg and Ciss against the Rds(on) gain. A part one bin lower in Rds(on) often costs more switching loss than it saves in conduction.
• The body diode recovery of low-Rds(on) parts can be severe in bridge topologies. Verify dv/dt and dead time against the datasheet before dropping it into a half bridge.

Common Questions

Is the CRTJ250N03L2-G an N-channel or P-channel device?

It is N-channel. The drain-source rating is 30 V.

Can the CRTJ250N03L2-G be driven from a 4.5 V logic-level gate signal?

Yes. The datasheet characterises Rds(on) at 4.5 V: 34 mΩ typical and 44 mΩ maximum.

What is the gate threshold voltage of the CRTJ250N03L2-G?

VGS(th) is specified between 1 and 2 V. Below the lower figure the part is off; above the upper figure it is fully on at the rated current.

How much gate charge does the CRTJ250N03L2-G need?

Qg is 7.12 nC. Size the driver against that figure at your switching frequency, and add the gate loop loss to the total dissipation budget.

What package does the CRTJ250N03L2-G come in?

SOT-23. Check the datasheet mechanical drawing for lead spacing and thermal pad dimensions before laying out the footprint.

How do I choose between the 2 part numbers in this rating group?

All 2 share the same voltage and package class. Sort by on-resistance first, then check gate charge: the lowest Rds(on) part is not automatically the best choice if the stage switches at high frequency. The table above lists them in ascending Rds(on) order.