WEE Technology Company Limited 

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEE Technology Silicon epitaxial planar diode / fast switching diodes are AEC-Q101 qualified available

1N4148 is a small high-speed switching diode. The switch is relatively fast. It is widely used in circuit with high signal frequency for one-way conduction isolation, communication, computer board, TV circuit and industrial control circuit.

1N4148 is a very versatile high-frequency switching diode. Including DO35, LL34, SOD323, SOT23, 0805 packages.

WEET 1N4148 fast switching diodes

Pacakge：DO-34, DO-35 

WEET LL4148 Diode type small signal

Pacakge：MiniMELF SOD80

WEET 1N4148W Silicon Epitaxial Planar Switching Diode 

Pacakge：SOD-123

WEET 1N4148WS Silicon Epitaxial Planar Switching Diode 

Pacakge：SOD-323

WEET 1N4148WT Silicon Epitaxial Planar Switching Diode 

Pacakge：SOD-523

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

1N indicates that the device has a 1 PN junction. Similarly, American type diodes all start at 2N because they have two PN junctions. 

Usually this product starts with several PN series and is developed in the United States. 4148 is just something like a serial number, and its number has no practical significance. LL4148 is a SMD version of 1N4148, Don't know exactly what LL means.

LL4148 usually refers to the glass-sealed cylinder LL-34 package (SMD Type, pinless).

1N4148 usually refers to DO-35 glass seal, axial pin, plug-in. It can be taped or packed in bulk.

1N4148 is a small high speed switching diode. The switch is relatively fast. It is widely used in circuit with high signal frequency for one-way conduction isolation, communication, computer board, TV circuit and industrial control circuit.

All of them are fast switching diodes, but they are packaged differently in order to suit for various PCB soldering patterns.

1N4148 is DO-35 plug-in through hole package, LL4148 is miniMELF chip SMD package, the two can be completely used alternately under low operating current.

WEE Technology Company Limited 

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

1W 3V to 75V ±5% ( DO-204AL) DO-41 2-Pin Glass through-hole body style Package Silicon Epitaxial Planar Switching Diode 1N4727A - 1N4761A

For use in stabilizing and clipping circuits with high power rating

WEE Technology Company Limited 

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEET High Speed SMD Switching Diode 1N4148W, 1N4148WS, 1N4148WT

These diodes are also available in other case style including the DO-35 case with type designation 1N4148, the Mini MELF case with the type designation LL4148 and the Micro MELF case with the type designation MCL4148.

WEET strong small Diodes Pakcage: DO-35/LL-34/SOD-123/SOD-323/SOD-523/SOT-23

Marking W2 / T4 for SMD Diode 1N4148WS, Marking W1 for SMD Diode 1N4148W, Marking .A for SMD Diode 1N4148WT

For 1N4148W our database currently has 3224 SMD marking codes of bipolar transistors (BJT),

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEE 1N4148 is a small high-speed switching (Fast Switching) diode with fast switching speed. It is widely used in circuit with high signal frequency for unidirectional isolation, communication, computer board, TV and industrial control circuit.

1N4148 is a point-contact low-current high-frequency switching diode with high speed, but its working current is only 150 mA.  Power Dissipation 500mW. It is widely used in circuits with high signal frequency. The diodes are type branded. Black colored means Cathode, the other side means anode

1N4148 is available both in DO-35 and DO-34 glass package, but WEE 1N4148 is strong at DO-35 package. Welcome your enquiry.

If you want to know more about WEE 1N4148 Electrical Characteristics, plesae check below link, thank you.

http://www.weetcl.com/High_Speed_Switching_Diodes/DO35_1N4148.html

WEE Technology Company Limited

Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

WEE LL4148 is general suitable for many different kinds of applications. Typically used in extreme fast switches.

We offer speicall price from 1KKpcs to 10KKpcs. The best price for 10KKpcs is 2.2USD/Kpcs, free shipping. 

If you have interest in WEE LL4148, please email us at : info@weetcl.com

Reverse Voltage 75V

Peak Reverse Voltage 100V

LL4148 small signal switching diode

Low reverse leakage

Maximum power dissipation 500mW

High stability and high reliability

Cathode Band Marking: Black

http://www.weetcl.com/High_Speed_Switching_Diodes/LL34_LL4148.html

WEE Technology Company Limited
Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

Switching Diodes

Fast Switching Diode LL4148 Minimelf SOD80
Silicon Epitaxial Planar Switching Diode BAV70
Silicon Epitaxial Planar Switching Diode BAV99
Silicon Epitaxial Planar Switching Diode 1N4148
Silicon Epitaxial Planar Switching Diode 1N4148W
Silicon Epitaxial Planar Switching Diode 1N4148WS
Silicon Epitaxial Planar Switching Diode 1N4148WT