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1N4148; 1N4448
General description
The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages.
Features
- 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.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 1N4148 | 1N4148 T/R | 9330 839 90113 | Volume production | SOD27
(ALF2) | Reel pack axial radial | Standard Marking | Not available
| week 13, 2005 |
| 1N4148 | 9330 839 90133 | Volume production | SOD27
(ALF2) | Ammo pack axial radial taped | Standard Marking | Not available
| week 13, 2005 | |
| 1N4148 | 9330 839 90143 | Volume production | SOD27
(ALF2) | Ammo pack axial radial taped | Standard Marking | Not available
| week 13, 2005 | |
| 1N4448 | 1N4448 T/R | 9331 203 50113 | Volume production | SOD27
(ALF2) | Reel pack axial radial | Standard Marking | Not available
| week 13, 2005 |
| 1N4448 | 9331 203 50133 | Volume production | SOD27
(ALF2) | Ammo pack axial radial taped | Standard Marking | Not available
| week 13, 2005 | |
| 1N4448 | 9331 203 50143 | Volume production | SOD27
(ALF2) | Ammo pack axial radial taped | Standard Marking | Not available
| week 13, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 1N4148 | 9330 839 90113 | 0.0200 | NA | ARROW ELECTRONICS | 4,416,000 | 11/14/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 5,937,000 | 11/17/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 260,000 | 11/14/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 270,241 | 11/14/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS- NORTH AMER | 2,332,776 | 11/14/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 100,609 | 11/14/2008 | Buy online | ||||
| 1N4148 | 9330 839 90133 | not available | ||||||
| 1N4148 | 9330 839 90143 | not available | ||||||
| 1N4448 | 9331 203 50113 | 0.0200 | NA | ARROW ELECTRONICS | 40,000 | 11/14/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 20,000 | 11/17/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 40,000 | 11/14/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 42,806 | 11/14/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS- NORTH AMER | 69,600 | 11/14/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 18,172 | 11/14/2008 | Buy online | ||||
| 1N4448 | 9331 203 50133 | Order samples | ||||||
| 1N4448 | 9331 203 50143 | not available |
Applications
- High-speed switching.
Related applications
OR-ing solution (AC)
OR-ing solution (DC)
Push-pull converter (DC)
Forward converter (DC)
Full bridge converter (DC)
Half bridge converter (DC)
LCD TV flyback power supply
LCD TV resonant power supply
Technical documents
Application Notes
AN00033_1;
CM433 autosync monitor (17-May-00)
AN00057_1;
ECO-monitor (08-Nov-00)
AN10496_1;
Vacuum cleaner with Philips P89LPC901 (10-Aug-06)
AN97032_1;
Circuit description of CCM420 monitor (14-Oct-97)
AN98011_1;
200W SMPS with TEA1504 (09-Apr-98)
Support Documents
75015326;
8A 1000V Hi-Com triacs (2005-09-01)
UM10011_6;
ISP1521 Hi-Speed USB hub demo board (2007-02-07)
LSYMDIO;
Letter Symbols - Diodes General (1999-05-01)
Parametrics/similar products
| Type number | Package | VR max(V) | IFSM max.(A) | VFmax(mV) | IRmax(nA) | Cd max.(pF) | Configuration | trr max(ns) | IF max(mA) | IFRM(mA) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1N4148 | SOD27
(ALF2) | 100 | 4 | 1@IF=10mA | 25@VR=20V | 4 | single | 4 | 200 | 450 |
| 1N4448 | SOD27
(ALF2) | 100 | 4 | 1@IF=100mA | 25@VR=20V | 4 | single | 4 | 200 | 450 |
Similar products
1N4148; 1N4448 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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