Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

1N4448

High-speed diodes

The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages.

For efficiency and logistic reasons the manufacturing and selling of products of the glass-diode type family 1N4148 is taken over completely by TAK CHEONG under license of Nexperia, where it has been manufactured already since year 2003.

This includes also the complete customer support like product information, complaint issue handling, application support etc.

This product has been discontinued

Features and benefits

  • Hermetically sealed leaded glass SOD27 (DO-35)package

  • High switching speed: max. 4 ns

  • General application

  • Continuous reverse voltage: max. 100 V

  • Repetitive peak reverse voltage: max. 100 V

  • Repetitive peak forward current: max. 450 mA.

Applications

  • High-speed switching.

Parametrics

Type number Package version Package name Size (mm)
1N4448 SOD27 ALF2 4.25 x 1.85

Package

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
1N4448 1N4448,113
(933120350113)		 Obsolete SOD27
ALF2
(SOD27) 		SOD27 WAVE_BG-BD-1
SOD27_113
1N4448,133
(933120350133)		 Obsolete SOD27_133
1N4448,143
(933120350143)		 Obsolete SOD27_143
1N4448/AT,113
(934008420113)		 Obsolete SOD27_113
1N4448/AT,133
(934008420133)		 Obsolete SOD27_133
1N4448/C,113
(934060544113)		 Obsolete SOD27_113

Environmental information

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
1N4448 1N4448,113 1N4448 rohs rhf
1N4448 1N4448,133 1N4448 rohs rhf
1N4448 1N4448,143 1N4448 rohs rhf
1N4448 1N4448/AT,113 1N4448    
1N4448 1N4448/AT,133 1N4448    
1N4448 1N4448/C,113 1N4448 rohs rhf
Quality and reliability disclaimer

Documentation (8)

File name Title Type Date
1N4148_1N4448 High-speed diodes Data sheet 2004-08-09
SOD27 3D model for products with SOD27package Design support 2021-01-28
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
LSYMDIO Letter Symbols - Diodes General Other type 1999-04-30
SOD27 glass, hermetically sealed glass package; axial leaded; 2 leads; 4.25 mm x 1.85 mm body Package information 2020-04-21
TAK-Cheong-licensing-1N4148_1N4448_BAW62-glass-diodes TAK Cheong licensing 1N4148 1N4448 BAW62 glass-diodes Quality document 2015-10-22
1N4448 1N4448 SPICE model SPICE model 2012-07-22
WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

File name Title Type Date
1N4448 1N4448 SPICE model SPICE model 2012-07-22
SOD27 3D model for products with SOD27package Design support 2021-01-28

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet