All about Electronic (Electronic circuits, wiring, equipments and safety Dedicated Discussion)

[awais924]

both

[Hassan1991]

From Aliexpress.

[awais924]

what's the name of this connector?

[Hassan1991]

Search using part number.

[brownrose78]

Is there any website from which i can know ic number of motherboard for my Laptop
@hassan1991 ?

[Hassan1991]

Don't think so, between which laptop?

[horticulturalist]

AoA, @Hassan1991 please help me to find alternative for an SMD mosfet 34DG.

[Hassan1991]

Wailaikum Assalam
No. Of dip?

[horticulturalist]

No. of Dip = 3.
Here i found its specs:

Type Designator: UT3404G-AE3-R

Marking Code: 34DG

Type of Transistor: MOSFET

Type of Control Channel: N -Channel

Maximum Power Dissipation (Pd): 1.4 W

Maximum Drain-Source Voltage |Vds|: 30 V

Maximum Gate-Source Voltage |Vgs|: 20 V

Maximum Gate-Threshold Voltage |Vgs(th)|: 3 V

Maximum Drain Current |Id|: 5.8 A

Maximum Junction Temperature (Tj): 150 °C

Total Gate Charge (Qg): 13.88 nC

Rise Time (tr): 3.8 nS

Drain-Source Capacitance (Cd): 102 pF

Maximum Drain-Source On-State Resistance (Rds): 0.028 Ohm

Package: SOT23

[Hassan1991]

Got it.
Will update.

[Hassan1991]

Closest one AO3404 which is available locally while KO3404 is exactly same but not available.

[horticulturalist]

Thanks bro

[horticulturalist]

Bro, In our city there is a high scarcity of electronic parts. Can't find any smd mosfets at any place in Peshawar. Neither equivalents nor others are available. Is there any other way? To find another size of mosfet, to bypass this transistor, or find it elsewhere.

[Hassan1991]

The one i shared above is available on daraz.

[horticulturalist]

Ok thanks bro i will order from there... that need a month to reach Pakistan.

Meanwhile, If I want just to remove the error for checking, can I connect the Gate to Drain or Source to Drain?

[Hassan1991]

No, it will blow something up.

[horticulturalist]

@Hassan1991 bro I also want a thermal fuse (2A 250v) that is not available in the market and online.

A group of 3 fuses in series (tied in rubber sleeve) with varistors were connected at the AC mains input junction. One of them was blown.

I searched market, found just 1A. So bought two of them but they show continuity on the meter (which is suspicious). On daraz, 10A is available but I don't think that will fit in the space.

Though the circuit is working, the fuse might be there for safety... What should I put in there as an alternative?

[Hassan1991]

Fuse will show continuity until it's damaged or blown up.
Share a picture of fuse.
Fuses in series or parallel doesn't increase or decrease the total current. Just extra protection.
Means in either of the 3 blows up connection breaks.

[horticulturalist]

The fuse and varistor were attached in a heat shrink so that they are close together. Hence the fuse is there for the varistor heats up, it blows.

[Hassan1991]

Contact electronics pro. +92 301 5755775
They should have it.