SMF24A

Manufacturer Part NumberSMF24A
DescriptionTVS Diodes - Transient Voltage Suppressors 24V 200W 5.1A 5% Unidirectional
ManufacturerLittelfuse
SeriesSMF
SMF24A datasheet
 


Specifications of SMF24A

Product CategoryTVS Diodes - Transient Voltage SuppressorsRohsyes
PolarityUnidirectionalBreakdown Voltage26.7 V to 29.5 V
Clamping Voltage38.9 VPeak Surge Current5.1 A
Package / CaseSOD-123Minimum Operating Temperature- 55 C
Maximum Operating Temperature+ 150 CChannels1 Channel
Mounting StyleSMD/SMTPeak Pulse Power Dissipation200 W
Termination StyleSMD/SMT  
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Transient Voltage Suppression Diodes
Surface Mount – 200W > SMF Series
SMF Series
Uni-directional
Maximum Ratings and Thermal Characteristics
(T
=25°C unless otherwise noted)
A
Parameter
Symbol
Peak Pulse Power Dissipation at
P
T
=25ºC by 10x1000µs (Note 1)
PPM
A
Thermal Resistance Junction- to-
R
Ambient
THJ-A
Thermal Resistance Junction- to-
R
Lead
THJ-L
Operating and Storage Temperature
T
T
Range
J,
STG
Notes:
1. Non-repetitive current pulse, per Fig. 4 and derated above T
Functional Diagram
Bi-directional
Cathode
Uni-directional
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/04/13
Description
The SMF series is designed specifically to protect sensitive
electronic equipment from voltage transients induced by
lightning and other transient voltage events.
SMF package is 50% smaller in footprint when compare
to SMA package and deliverying one of the lowest height
profiles (1.1mm) in the industry.
Features
•Compatible with
industrial standard
package SOD-123
• For surface mounted
applications to optimize
Value
Unit
board space
200
W
• Low profile: maximum
height of 1.1mm.
• Typical failure mode is
220
°C/W
short from over-specified
voltage or current
100
°C/W
• Whisker test is conducted
based on JEDEC
-55 to 150
°C
JESD201A per its table 4a
and 4c
=25ºC per Fig. 3.
• IEC-61000-4-2 ESD
A
30kV (Air), 30kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
Applications
Anode
SMF devices are ideal for the protection of I/O interfaces,
V
bus and other vulnerable circuit used in cellular phones,
CC
portable devices, business machines, power supplies and
other consumer applications.
RoHS
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Low inductance, excellent
clamping capability
• 200W peak pulsepower
capability at 10 × 1000µs
waveform, repetition rate
(duty cycle): 0.01%
• Fast response time:
typically less than 1.0ns
from 0 Volts to V
min
BR
• High temperature
soldering: 260°C/40
seconds at terminals
• Glass passivated junction
• Built-in strain relief
• Matte tin lead–free plated
• Halogen-free and RoHS
compliant

SMF24A Summary of contents

  • Page 1

    ... Notes: 1. Non-repetitive current pulse, per Fig. 4 and derated above T Functional Diagram Bi-directional Cathode Uni-directional © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/04/13 Description The SMF series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. ...

  • Page 2

    ... SMF8.0A AR 8.89 SMF8.5A AT 9.44 SMF9.0A AV 10.0 SMF10A AX 11.1 SMF11A AZ 12.2 SMF12A BE 13.3 SMF13A BG 14.4 SMF14A BK 15.6 SMF15A BM 16.7 SMF16A SMF17A BR 18.9 SMF18A BT 20.0 SMF20A BV 22.2 SMF22A BX 24.4 SMF24A BZ 26.7 SMF26A CE 28.9 SMF28A CG 31.1 SMF30A CK 33.3 SMF33A CM 36.7 SMF36A CP 40.0 SMF40A CR 44.4 SMF43A SMF45A CV 50.0 SMF48A CX 53.3 SMF51A CZ 56.7 SMF54A DE 60.0 Notes measured after I applied for 300µ sequare wave pulse or equivalent Surge current waveform per 10 × ...

  • Page 3

    ... Forward Voltage Drop for Uni-directional F Ratings and Characteristic Curves (T A Figure 1 - TVS Transients Clamping Waveform Voltage Transients Voltage Across TVS Current Through TVS © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/04/ =25°C unless otherwise noted) Figure 2 - Peak Pulse Power Rating Curve 10 1 ...

  • Page 4

    ... Pulse Width(td) is defined as the point where the peak current decays to 50 PPM Peak Value I PPM Half Value ( ) I PPM I PPM 2 10/1000µsec. Waveform as defined by R.E 1.0 2.0 3.0 4.0 t-Time (ms 140 Temperature (ºC) © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/04/13 ...

  • Page 5

    ... Color band denotes cathode except bipolar Terminal Matte tin-plated leads, solderable per JESD22-B102D - SOD-123 Package Dimensions Mounting Pad Layout 1.3 (0.051) 1.6 (0.062) 1.4 (0.055) © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/04/13 Lead–free assembly T 150°C P 200° – 180 secs T s(max) 3° ...

  • Page 6

    ... Trace Code Marking Y:Year Code M: Month Code Packaging Packaging Option Specification Tape & Reel – 8mm/7” tape EIA RS-481 0.059 DIA Cover tape (1.5) Dimensions are in inches (and millimeters). Direction of Feed Cathode © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/04/13 ...