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April 2013  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448  
Small Signal Diode  
Cathode Band  
LL-34 COLOR BAND MARKING  
DEVICE  
1ST BAND  
FDLL914  
BLACK  
BLACK  
BLACK  
BLACK  
BLACK  
FDLL914A  
FDLL914B  
FDLL4148  
FDLL4448  
SOD80  
LL-34  
DO-35  
THE PLACEMENT OF THE EXPANSION GAP  
HAS NO RELATIONSHIP TO THE LOCATION  
OF THE CATHODE TERMINAL  
-1st band denotes cathode terminal  
and has wider width  
Cathode is denoted with a black band  
Absolute Maximum Ratings(1)  
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-  
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-  
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The  
absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.  
Symbol  
Parameter  
Maximum Repetitive Reverse Voltage  
Value  
100  
Units  
V
VRRM  
IO  
IF  
If  
Average Rectified Forward Current  
DC Forward Current  
200  
mA  
mA  
mA  
A
300  
Recurrent Peak Forward Current  
400  
Pulse Width = 1.0 s  
1.0  
IFSM  
Non-repetitive Peak Forward Surge Current  
Pulse Width = 1.0 μs  
4.0  
A
TSTG  
Storage Temperature Range  
-65 to +200  
175  
°C  
TJ  
Operating Junction Temperature  
°C  
Note:  
1. These ratings are limiting values above which the serviceability of the diode may be impaired.  
Thermal Characteristics  
Max.  
Symbol  
Parameter  
Units  
1N/FDLL 914/A/B / 4148 / 4448  
PD  
Power Dissipation  
Thermal Resistance, Junction to Ambient  
500  
300  
mW  
RθJA  
°C/W  
© 2007 Fairchild Semiconductor Corporation  
www.fairchildsemi.com  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448 Rev. 1.1.1  
1
Electrical Characteristics(2)  
Values are at TA = 25°C unless otherwise noted.  
Symbol  
Parameter  
Test Conditions  
IR= 100 μA  
Min.  
100  
75  
Max.  
Units  
V
VR  
Breakdown Voltage  
IR= 5.0 μA  
I F= 5.0 mA  
IF= 5.0 mA  
V
1 N 9 1 4 B / 4 4 4 8  
1N916B  
0.62  
0.63  
0.72  
0.73  
1.0  
V
V
1N914 / 916 / 4148 IF= 10 mA  
V
VF  
F o r w a r d Vo l t a g e  
1 N 9 1 4 A / 9 1 6 A  
1N916B  
I F= 20 mA  
1.0  
V
IF= 20 mA  
1.0  
V
1N914B / 4448  
IF= 100 mA  
1.0  
V
VR= 20 V  
0.025  
50  
μA  
μA  
μA  
pF  
pF  
IR  
Reverse Leakage  
To t a lC a p a c it a n c e  
VR= 20 V, TA= 150°C  
VR= 75 V  
5.0  
1N916A/B/4448  
1N914A/B/4148  
VR = 0, f = 1.0 MHz  
VR = 0, f = 1.0 MHz  
2.0  
CT  
4.0  
IF = 10 mA, VR = 6.0 V (600 mA)  
Irr = 1.0 mA, RL = 100 Ω  
trr  
Reverse Recovery Time  
4.0  
ns  
Note:  
2. Non-recurrent square wave PW= 8.3 ms.  
© 2007 Fairchild Semiconductor Corporation  
www.fairchildsemi.com  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448 Rev. 1.1.1  
2
Typical Performance Characteristics  
120  
100  
80  
60  
40  
20  
0
Ta= 25 oC  
160  
Ta=25 o  
C
150  
140  
130  
120  
110  
10  
20  
30  
70  
100  
Reverse Voltage, VR [5V0]  
1
2
3
5
10  
20  
30  
50  
100  
Reverse Current, IR [uA]  
GENERAL RULE: The Reverse Current of a diode will approximately  
double for every ten (10) Degree C increase in Temperature  
Figure 1. Reverse Voltage vs. Reverse Current  
Figure 2. Reverse Current vs. Reverse Voltage  
IR - 10 to 100 V  
BV - 1.0 to 100 μA  
750  
550  
Ta= 25 o  
C
Ta= 25 o  
C
700  
650  
600  
550  
500  
450  
500  
450  
400  
350  
300  
250  
0.1  
0.2 0.3  
0.5  
1
2
3
5
10  
1
2
3
5
10  
20  
30  
50  
100  
Forward Current, IF [uA]  
Forward Current, IF [mA]  
Figure 3. Forward Voltage vs. Forward Current  
Figure 4. Forward Voltage vs. Forward Current  
VF - 0.1 to 10 mA  
VF - 1 to 100 μA  
900  
1.6  
Ta= 25 o  
C
Typical  
800  
Ta= -40 o  
C
1.4  
1.2  
1.0  
0.8  
0.6  
700  
600  
500  
400  
300  
Ta= 25 o  
C
Ta= +65 o  
C
10  
20  
30  
50  
100  
200 300  
500  
800  
3
0.01  
0.1  
0.3  
1
10  
0.03  
Forward Current, IF [mA]  
Forward Current, IF [mA]  
Figure 5. Forward Voltage vs. Forward Current  
VF - 10 to 800 mA  
Figure 6. Forward Voltage vs. Ambient Temperature  
VF - 0.01 - 20 mA (- 40 to +65°C)  
© 2007 Fairchild Semiconductor Corporation  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448 Rev. 1.1.1  
www.fairchildsemi.com  
3
Typical Performance Characteristics (Continued)  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.90  
Ta = 25 o  
C
TA = 25 o  
C
0.85  
0.80  
0.75  
10  
20  
30  
40  
50  
60  
0
2
4
6
8
10  
12  
14  
Reverse Recovery Current, Irr [mA]  
REVERSE VOLTAGE (V)  
IF = 10mA , IRR = 1.0 mA  
, Rloop = 100 Ohms  
Figure 8. Reverse Recovery Time vs  
Reverse Recovery Current  
Figure 7. Total Capacitance  
500  
400  
300  
200  
100  
0
500  
400  
300  
200  
100  
0
DO-35  
SOT-23  
0
50  
100  
150  
200  
0
50  
100  
150  
Temperature [ oC]  
Ambient Temperature ( oC)  
Figure 10. Power Derating Curve  
Figure 9. Average Rectified Current (IF(AV)  
vs Ambient Temperature (TA)  
)
© 2007 Fairchild Semiconductor Corporation  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448 Rev. 1.1.1  
www.fairchildsemi.com  
4
Physical Dimensions  
SOD-80  
0.50  
0.30  
1.50  
1.30  
2.64 REF  
0.30  
0.20  
C
R
3.60  
3.30  
NOTES: UNLESS OTHERWISE SPECIFIED  
A) PACKAGE STANDARD REFERENCE:  
JEDEC DO-213, VARIATION AC.  
B) ALL DIMENSIONS ARE IN MILLIMETERS.  
C
CORNER RADIUS IS OPTIONAL.  
D) DRAWING FILE NAME: SOD80A REV01  
Figure 11. 2-TERMINAL, SOD-80, JEDEC DO-213AC, MINI-MELF  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the  
warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/.  
For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:  
http://www.fairchildsemi.com/packaging/tr/SOD80A_tnr.pdf.  
© 2007 Fairchild Semiconductor Corporation  
www.fairchildsemi.com  
1N/FDLL 914A/B / 916/A/B / 4148 / 4448 Rev. 1.1.1  
5
TRADEMARKS  
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not  
intended to be an exhaustive list of all such trademarks.  
Sync-Lock™  
2Cool¥  
FPS¥  
®
AccuPower¥  
F-PFS¥  
®*  
AX-CAP®*  
BitSiC¥  
Build it Now¥  
CorePLUS¥  
CorePOWER¥  
CROSSVOLT¥  
CTL¥  
FRFET®  
PowerTrench®  
PowerXS™  
Programmable Active Droop¥  
QFET®  
Global Power ResourceSM  
GreenBridge¥  
Green FPS¥  
Green FPS¥ e-Series¥  
Gmax¥  
TinyBoost¥  
TinyBuck¥  
TinyCalc¥  
TinyLogic®  
TINYOPTO¥  
TinyPower¥  
TinyPWM¥  
TinyWire¥  
TranSiC¥  
QS¥  
Quiet Series¥  
RapidConfigure¥  
¥
GTO¥  
IntelliMAX¥  
Current Transfer Logic¥  
DEUXPEED®  
Dual Cool™  
EcoSPARK®  
EfficientMax¥  
ISOPLANAR¥  
Making Small Speakers Sound Louder  
and Better™  
Saving our world, 1mW/W/kW at a time™  
SignalWise¥  
SmartMax¥  
TriFault Detect¥  
TRUECURRENT®*  
PSerDes¥  
MegaBuck¥  
SMART START¥  
Solutions for Your Success¥  
SPM®  
ESBC¥  
MICROCOUPLER¥  
MicroFET¥  
®
MicroPak¥  
Fairchild®  
STEALTH¥  
UHC®  
Ultra FRFET¥  
UniFET¥  
VCX¥  
VisualMax¥  
VoltagePlus¥  
XS™  
MicroPak2¥  
Fairchild Semiconductor®  
FACT Quiet Series¥  
FACT®  
SuperFET®  
MillerDrive¥  
SuperSOT¥-3  
MotionMax¥  
SuperSOT¥-6  
mWSaver¥  
FAST®  
SuperSOT¥-8  
OptoHiT¥  
SupreMOS®  
FastvCore¥  
OPTOLOGIC®  
OPTOPLANAR®  
FETBench¥  
SyncFET¥  
* 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 CONDITIONS, 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 DEVICES 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  
reasonably expected to result in a significant injury of the user.  
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.  
ANTI-COUNTERFEITING POLICY  
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,  
under Sales Support.  
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their  
parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed  
applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the  
proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild  
Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors  
are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical  
and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise.  
Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global  
problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Datasheet contains the design specifications for product development. Specifications may change  
in any manner without notice.  
Advance Information  
Formative / In Design  
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.  
Preliminary  
No Identification Needed  
Obsolete  
First Production  
Full Production  
Not In Production  
Rev. I64  
© Fairchild Semiconductor Corporation  
www.fairchildsemi.com