Fairchild MMSZ4688 service manual
MMSZ4688
5% TOLERANCE
General Description:
Half watt, General purpose, Medium Current Surface Mount
Zener in the SOD-123 package. The SOD-123 package has
the same footprint as the glass mini-melf (LL-34) package &
provides a convenient alternative to the Leadless package.
Absolute Maximum Ratings (note 1) TA = 25
Features:
• Compact surface mount with same footprint as mini-melf
• 500 mW rating on FR-4 or FR-5 board.
• Class 3 ESD rating (>16 kV) per Human Body Model
Ordering:
• 7 inch reel (178 mm); 8 mm Tape; 3,000 units per reel.
O
C unless otherwise noted
Parameter Value Units
T
- Storage Temperature -55 to +150
STG
TJ- Maximum Junction Temperature -55 to +150 OC
PD - Total Power Dissipation at 25OC 500 mW
Derate above 25OC 6.7 mW/OC
R
- Thermal Resistance Junction to Ambient 340 OC/W
ØJA
R
- Thermal Resistance Junction to Lead 150 OC/W
ØJL
O
C
VZ- Maximum Voltage Change (Note 2) 990 mV
Lead Solder Temperature (Max 10 second duration) 260 OC
Nominal Zener Voltage (VZ) at 50 uA 4.7 V
Note 1: These ratings are limiting values above which the serviceability of any semiconductor device may be impaired
Note 2: Voltage change is equal to the difference between V
at 100 uA and VZ at 10 uA.
Z
Top Mark: CT
1: Cathode
1
2
2: Anode
Electrical Characteristics TA = 25
O
C unless otherwise noted
SYM CHARACTERISTICS MIN MAX UNITS TEST CONDITIONS
V
I
Zener Voltage 4.47 4.94 V IZT= 50.0 uA D.C
Z
Reverse Leakage 10 uA VR= 3.0 V
R
V
Forward Voltage 900 mV IF= 10 mA
F
VZDelta Zener Voltage 990 mV IF= 100 uA to 10 uA
© 1997 Fairchild Semiconductor Corporation
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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 CORPORA TION.
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.
PRODUCT STA TUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Formative or
In Design
First Production
Full Production
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.
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
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.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
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Obsolete
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that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. H3
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