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MMBT4240 on a board, in 3D

MMBT4240

STMicroelectronics

Extended
DatasheetJLCPCBLCSCst/MMBT4240
Category
Zener Diodes
Package
SOT-23
Pins
3

Overview

The MMBT4240 is a zener Diode made by STMicroelectronics in a SOT-23 package with 3 pins.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:M8550_C7427893, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 1,728 are in stock at JLCPCB (part C7464239). 1 open-source board in 1 repository on GitHub use it.

Symbol

C3E2B1
EasyEDA_Cloud:M8550_C7427893From EasyEDA

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Parameters

11
Collector - Emitter Voltage VCEO
40V
Configuration
Standalone
Current - Collector Cutoff
100nA
Current - Collector(Ic)
2A
DC Current Gain
350
Emitter-Base Voltage(Vebo)
5V
Number
1 NPN
Pd - Power Dissipation
480mW
Transition frequency(fT)
230MHz
Vce Saturation(VCE(sat))
320mV
type
NPN

Order codes

1

Pinout

3
The pins of the MMBT4240
PinNameType
1BUnspecified
2EUnspecified
3CUnspecified

Open-source boards using it

All 1
  • 2 layers38.2 × 37.9 mmNixieSupply5vto160vDCMBoost, the printed circuit board in 3D

    NixieSupply5vto160vDCMBoost

    drkmsmithjr/NixiePowerSupply

    170v Nixie Tube Power Supply from 5v Supply

    47 parts98MIT

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Questions

Is there a KiCad symbol and footprint for the MMBT4240?

Yes. The symbol is EasyEDA_Cloud:M8550_C7427893 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MMBT4240?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the MMBT4240 datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the MMBT4240?

JLCPCB lists it as part C7464239, with 1,728 in stock; the sellers' links on this page open their listings.

What can replace the MMBT4240?

Parts like it in the library: the BZX84C6V8-E3-08 by Vishay Intertechnology, the MMBZ5231B by DOWO, the MMBZ5242B by DOWO and the BZX84C12-E3-08 by Vishay Intertechnology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the MMBT4240?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8