Fairchild FDLL4151 service manual
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FDLL4151
Small Signal Diode
General Description
A general purpose diode that couples high forward conductance fast swiching speed and high blocking voltages in a glass leadless
LL-34 surface mount package. Placement of the expansion gap has no relationship to the location of the cathode terminal which is
indicated by the first color band.
FDLL4151 Small Signal Diode
Cathode Band
Expansion Gap
Absolute Maximum Ratings *
Ta = 25°C unless otherwise noted
BLACK
YELLOW
Symbol Parameter Value Units
V
RRM
I
F(AV)
I
FSM
T
STG
T
J
* These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
NOTES:
1. These ratings are based on a maximum juction temperature of 200 degrees C.
2. These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Maximum Repetitive Reverse Voltage 75 V
Average Rectified Forward Current 200 mA
Non-repetitive Peak Forward Current
Pulse Width = 1.0 second
Pulse Width = 1.0microsecond
1.0
4.0
Storage Temperature Range -65 to +200 °C
Operating Junction Temperature -65 to +200 °C
Thermal Characteristics
A
A
Symbol Parameter Value Units
P
D
R
θJA
Electrical Characteristics
Power Dissipation 500 mW
Thermal Resistance, Junction to Ambient 350 °C/W
TC = 25°C unless otherwise noted
Symbol Parameter Conditions Min. Max Units
V
R
V
F
I
R
C
T
t
rr1
t
rr2
©2004 Fairchild Semiconductor Corporation
FDLL4151 Rev. B
Breakdown Voltage IR = 5µA75V
Forward Voltage IF = 50mA 1 V
Reverse Current VR = 50V
= 30V, TA = 150°C
V
R
Total Capacitance VR = 0, f = 1.0MHz 4 pF
Reverse Recovery Time IF = IR = 10mA, IRR = 1mA
= 100Ω
R
L
Reverse Recovery Time VR = 6V, IF = 10mA, IRR = 1mA
= 100Ω
R
L
1
50
50
nA
µA
4ns
2ns
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2
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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 ASSUM E 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.
LIFE SUPPORT POLICY
FDLL4151 Small Signal Diode
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, or (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 significant injury to the
user.
2. A critical component is 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.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or In
Design
Preliminary First Production This datasheet contains preliminary data, and
No Identification Needed Full Production This datasheet contains final specifications. Fairchild
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete Not In Production This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
2
FDLL4151 Rev. B
Rev. I14
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