Datasheet 1N4148WS, 1N4448WS, 1N914BWS Datasheet (Fairchild) [ru]

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1N4148WS / 1N4448WS / 1N914BWS Small Signal Diodes

1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes

April 2012

Features

• General Purpose Diodes

• Fast Switching Device (T

< 4.0ns)

• Very Small and Thin SMD Package

• Moisture Level Sensitivity 1

• Pb-free Version and RoHS Compliant

• Matte Tin (Sn) Lead Finish

• Green Mold Compound

Absolute Maximum Ratings* T

Symbol

RSM

RRM

FRM

STG

Non-Repetitive Peak Reverse Voltage 100 V Repetitive Peak Reverse Voltage 75 V Repetitive Peak Forward Current 300 mA Continuous Forward Current 150 mA Operating Junction Temperature +150 °C Storage Temperature Range -55 to +150 °C

Parameter Value Units

= 25°C unless otherwise noted

Device Marking Code

Device Type Device Marking

1N4148WS S1 1N4448WS S2 1N914BWS

1. Cathode

ELECTRICAL SYMBOL

2. Anode

SOD-323 Flat Lead

Band Indicates Cathode

* These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. The factory should be consulted on applications involving pulsed or low duty cycle operations.

Thermal Characteristics

Symbol

θJA

Power Dissipation (TC = 25°C) 200 mW Thermal Resistance, Junction to Ambient * 500 °C/W

Parameter Value Units

* Device mounted on FR-4 PCB minimum land pad.

Electrical Characteristics T

Symbol

Breakdown Voltage IR = 100 μA

Reverse Current VR = 20 V

Forward Voltage 1N4448WS/914BWS

Diode Capacitance VR = 0, f = 1 MHz 4 pF

Reverse Recovery Time IF = 10 mA, IR = 60 mA,

Parameter Test Conditions

1N4148WS 1N4448WS/914BWS

= 25°C unless otherwise noted

= 5 μA

= 75 V

IF = 5 mA I

= 10 mA

= 100 mA

= 1 mA, RL = 100 Ω

Min. Typ. Max.

100

0.62 0.72 1 1

4ns

Units

V V

nA μA

V V V

Typical Performance Characteristics

[mA]

]

1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes

0.58

0.56

0.54

0.52

0.50

0.48

Capacitance [pF]

0.46

0.44 02468101214

TA=25°C

Reverse Voltage (V)

Figure 1. Total Capacitance

250

200

150

100

PD - Power Dissipation [mW]

0 25 50 75 100 125 150 175

Temperature [°C

Typical

1.2

1.0

0.8

0.6

0.4

Ta=-40°C

Ta=25°C

Ta=150°C

VF- Forward Voltage [V]

0.2

0.0

0.01 0.1 1 10 100

Forward Current, I

Figure 2. Forward Voltage vs. Ambient Temperature

Ta=150°C

Ta=25°C

Reverse Current [nA]

Ta=-40°C

-1

10 20 30 40 50 60 70 80 90 100

Reverse Voltage, VR[V]

Figure 3. Power Derating Curve Figure 4. Reverse Current vs. Reverse Voltage

170

Ta=25°C

160

150

VR - Reverse Voltage

140

110100

Reverse Current, IR[µA]

Figure 5. Reverse Voltage vs. Reverse Current

Physical Dimensions

1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes

SOD-323F

Dimensions in Millimeters

TRADEMARKS

The following includes registered and unregiste red trademarks and service ma rks, owned by Fairchild Semicondu ctor and/or its global sub sidiaries, and is not intended to be an exhaustive list of all such trademarks.

2Cool¥ AccuPower¥ AX-CAP¥* BitSiC¥ Build it Now¥ CorePLUS¥ CorePOWER¥

CROSSVOLT¥

CTL¥ Current Transfer Logic¥ DEUXPEED Dual Cool™ EcoSPARK

EfficientMax¥ ESBC¥

Fairchild Fairchild Semiconductor FACT Quiet Series¥

FACT

FAST FastvCore¥ FETBench¥ FlashWriter

FPS¥

F-PFS¥

FRFET Global Power Resource

GreenBridge¥ Green FPS¥ Green FPS¥ e-Series¥ Gmax¥ GTO¥ IntelliMAX¥ ISOPLANAR¥ Making Small Speakers Sound Louder

and Better™ MegaBuck¥ MICROCOUPLER¥ MicroFET¥ MicroPak¥ MicroPak2¥

MillerDrive¥ MotionMax¥ Motion-SPM¥ mWSaver¥ OptoHiT¥ OPTOLOGIC OPTOPLANAR

PowerTrench PowerXS™ Programmable Active Droop¥

QFET QS¥ Quiet Series¥ RapidConfigure¥

Saving our world, 1mW/W/kW at a time™ SignalWise¥ SmartMax¥ SMART START¥ Solutions for Your Success¥

SPM STEALTH¥ SuperFET

SuperSOT¥-3 SuperSOT¥-6 SuperSOT¥-8 SupreMOS

SyncFET¥ Sync-Lock™

The Power Franchise

TinyBoost¥ TinyBuck¥ TinyCalc¥ TinyLogic

TINYOPTO¥ TinyPower¥ TinyPWM¥ TinyWire¥ TranSiC¥ TriFault Detect¥ TRUECURRENT

PSerDes¥

UHC Ultra FRFET¥ UniFET¥ VCX¥ VisualMax¥ VoltagePlus¥ XS™

* Trademarks of System General Corporation, used under license by Fairchild Semiconductor.

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CON DITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEV ICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.

As used herein:

1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be

2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

reasonably expected to result in a significant injury of the user.

ANTI-COUNTERFEITING POLICY

Fairchild Semiconductor Corporation's An ti-Counter feiting Poli cy. Fairchi ld's An ti-Counter feiting Policy is also state d on ou r external website, w ww.fair childsemi.com , under Sales Support.

Counterfeiting of semiconductor parts is a grow ing problem in the industry . All manu facturers of semicon ductor pro ducts are e xp eriencing counter feiting of thei r parts. Customers who inadvertently purch ase co unterfeit p arts ex perience many problem s such as loss of brand repu tation, substan dard performan ce, failed applications, and increased cost o f productio n and man ufacturing delays. Fairchild is taking strong mea sures to protect oursel v es and our custome rs from the proliferation of counterfeit parts. Fairchild strongly encourag es customers to purchase Fairchild par ts either directly from Fairchild or fr om Authorize d Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distrib utors are genuine parts, have full tr aceability , meet Fairchild' s quality standards for handling and storage and pr ovide a ccess to Fa irchild's full range of up-to-date technical and product information. Fairchild and ou r Authorized Distributo rs will stan d behind all warran ties and will appropriate ly addr ess any warranty issues that may ari se. Fairchild will not provide any w arranty coverage o r other assistance fo r parts bo ught from Unauthorized Sources. F airchild is committed to combat this global problem and encourage our customers to do their par t in stopping this practi ce by buying direct or from au thorized distr ibutors.

PRODUCT STATUS DEFINITIONS Definition of Terms

Datasheet Identification Product Status Definition

Advance Information Formative / In Design

Preliminary First Production

No Identification Needed Full Production

Obsolete Not In Production

Datasheet contains the design specifications for product development. Specifications may change in any manner without notice.

Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design.

Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve the design.

Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor. The datasheet is for reference information only.

Rev. I61

Datasheet 1N4148WS, 1N4448WS, 1N914BWS Datasheet (Fairchild) [ru]

Specifications and Main Features

Frequently Asked Questions

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