4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
1N4148W
STMicroelectronicsJLCPCB basic
150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHS
- Part id
- st/1N4148W
- Category
- Switching Diodes
- Package
- SOD-123
- Pins
- 2
- In stock
- 3,630,685 at JLCPCB (C81598)
- Used on
- 1,708 open-source boards
Overview
The 1N4148W is a switching Diode made by STMicroelectronics in a SOD-123 package with 2 pins. 150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHS.
PCBKit's library has its KiCad symbol (Diode:1N4148W, from KiCad's library) and its footprint (Diode_SMD:D_SOD-123, from KiCad's library), ready for a KiCad board. 3,630,685 are in stock at JLCPCB (part C81598). 1,708 open-source boards in 1,211 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
8- Reverse voltage, most
- 75 V · Maximum reverse voltage · p. 1
- Forward current, most
- 150 mA · Maximum average rectified forward current at Ta = 25℃ · p. 1
- Junction, hottest
- 150 °C · Maximum junction temperature · p. 1
- Junction to air (SOD-123)
- 312 K/W · Junction to ambient air · p. 1
- Forward voltage
- 715 mV · Max at IF = 1 mA, Ta = 25℃ · p. 1
- Forward voltage
- 855 mV · Max at IF = 10 mA, Ta = 25℃ · p. 1
- Forward voltage
- 1 V · Max at IF = 50 mA, Ta = 25℃ · p. 1
- Forward voltage
- 1.25 V · Max at IF = 150 mA, Ta = 25℃ · p. 1
What it is and has
3- Diode type
- Silicon Epitaxial Planar Switching Diode · p. 1
- Package
- SOD-123 · p. 1
- Switching
- Fast switching · p. 1
Specifications
21| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Peak Reverse Voltage VRM | Ta = 25℃ | max 100 V | 1 |
| Reverse Voltage VR | Ta = 25℃ | max 75 V | 1 |
| Average Rectified Forward Current IF(AV) | Ta = 25℃ | max 150 mA | 1 |
| Non-repetitive Peak Forward Surge Current IFSM | Ta = 25℃, at t = 1 s | max 0.5 A | 1 |
| Non-repetitive Peak Forward Surge Current IFSM | Ta = 25℃, at t = 1 ms | max 1 A | 1 |
| Non-repetitive Peak Forward Surge Current IFSM | Ta = 25℃, at t = 1 us | max 4 A | 1 |
| Power Dissipation Ptot | Ta = 25℃ | max 400 mW | 1 |
| Thermal Resistance from Junction to Ambient Air RθJA | SOD-123, Ta = 25℃ | max 312 ℃/W | 1 |
| Junction Temperature Tj | Ta = 25℃ | max 150 ℃ | 1 |
| Storage Temperature Range Tstg | min -65 · max 150 ℃ | 1 | |
| Reverse Breakdown Voltage V(BR)R | at IR = 1 uA | min 75 V | 1 |
| Forward Voltage VF | at IF = 1 mA | max 0.715 V | 1 |
| Forward Voltage VF | at IF = 10 mA | max 0.855 V | 1 |
| Forward Voltage VF | at IF = 50 mA | max 1 V | 1 |
| Forward Voltage VF | at IF = 150 mA | max 1.25 V | 1 |
| Peak Reverse Current IR | at VR = 75 V | max 1 uA | 1 |
| Peak Reverse Current IR | at VR = 20 V | max 25 nA | 1 |
| Peak Reverse Current IR | at VR = 75 V, TJ = 150℃ | max 50 uA | 1 |
| Peak Reverse Current IR | at VR = 25 V, TJ = 150℃ | max 30 uA | 1 |
| Total Capacitance CT | at VR = 0 V, f = 1 MHz | max 2 pF | 1 |
| Reverse Recovery Time trr | at IF = 10 mA, Irr = 1 mA, VR = 6 V, RL = 100 Ω | max 4 ns | 1 |
Pins, by the datasheet
2- 1 Cathode
- Cathode · p. 1
- 2 Anode
- Anode · p. 1
- 2 layers208.8 × 396.9 mm
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Parts like it
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Questions
Is there a KiCad symbol and footprint for the 1N4148W?
Yes. The symbol is Diode:1N4148W and the footprint Diode_SMD:D_SOD-123, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 1N4148W?
SOD-123, with 2 pins. Its footprint is drawn on this page.
Where is the 1N4148W datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the 1N4148W?
JLCPCB lists it as part C81598, with 3,630,685 in stock; the sellers' links on this page open their listings.
What can replace the 1N4148W?
Parts like it in the library: the 1N4148W by hongjiacheng, the 1N4148W by Jiangsu Changjing Electronics Technology (CJ), the 1N4148W by GOODWORK and the 1N4148W by JSMSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the 1N4148W?
1,708 boards in 1,211 repositories on GitHub; the most starred are listed on this page, with their KiCad files.