SMAJ45A Littelfuse Inc, SMAJ45A Datasheet

DIODE TVS 45V 400W UNI 5% SMA

SMAJ45A

Manufacturer Part Number
SMAJ45A
Description
DIODE TVS 45V 400W UNI 5% SMA
Manufacturer
Littelfuse Inc
Series
SMAJr
Datasheet

Specifications of SMAJ45A

Voltage - Reverse Standoff (typ)
45V
Voltage - Breakdown
50V
Power (watts)
400W
Polarization
Unidirectional
Mounting Type
Surface Mount
Package / Case
DO-214AC, SMA
Reverse Stand-off Voltage Vrwm
45V
Breakdown Voltage Range
50V To 55.3V
Clamping Voltage Vc Max
72.7V
Diode Configuration
Unidirectional
Peak Pulse Current Ippm
5.5A
Diode Case Style
DO-214AC
Lead Free Status / RoHS Status
Lead free by exemption / RoHS Compliant
Other names
SMAJ45ALFTR

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Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above T
2. Mounted on 5.0x5.0mm copper pad to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
4. V
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information.
Agency Approvals
Maximum Ratings and Thermal Characteristics
(T
Parameter
Peak Pulse Power Dissipation at
T
(Fig.1)(Note 1), (Note 2)
Power Dissipation on infinite heat
sink at T
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
Maximum Instantaneous Forward
Voltage at 25A for Unidirectional
only (Note 4)
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance Junction
to Lead
Typical Thermal Resistance Junction
to Ambient
device only.
AGENCY
A
F
=25ºC by 10x1000μs waveform
A
< 3.5V for V
RoHS
=25
O
A
C unless otherwise noted)
=50
BR
O
<
_
C
SMAJ Series
200V and V
F
< 6.5V for V
AGENCY FILE NUMBER
BR
>
_
E230531
201V.
Symbol
T
P
J
P
I
, T
R
R
M(AV)
FSM
V
PPM
uJL
uJA
F
STG
A
=25ºC per Fig. 2.
Transient Voltage Suppression Diodes
Surface Mount – 400W > SMAJ series
-65 to 150
3.5V/6.5
Value
400
120
3.3
40
30
°C/W
°C/W
Unit
Revision: January 09, 2009
W
W
°C
A
V
7
Description
The SMAJ series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
Applications
TVS devices are ideal for the protection of I/O Interfaces,
V
Computer, Industrial and Consumer electronic applications.
CC
applications to optimize
board space
capability
capability at 10 x 1000μs
waveform, repetition rate
(duty cycle): 0.01%
bus and other vulnerable circuits used in Telecom,
above 12V
temperature coefficient
ΔV
typically less than 1.0ps
from 0 Volts to V
soldering: 260°C/40
seconds at terminals
Underwriters Laboratory
Flammability 94V-O
Plated
BR
= 0.1% x V
R
less than 1μA
BR
@25°C x ΔT
BR
SMAJ Series
min

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SMAJ45A Summary of contents

Page 1

SMAJ Series RoHS Agency Approvals AGENCY AGENCY FILE NUMBER E230531 Maximum Ratings and Thermal Characteristics (T = unless otherwise noted) A Parameter Symbol Peak Pulse Power Dissipation at T =25ºC by 10x1000μs waveform P A PPM (Fig.1)(Note 1), ...

Page 2

... SMAJ26CA CE YE SMAJ28A SMAJ28CA CG YG SMAJ30A SMAJ30CA CK YK SMAJ33A SMAJ33CA CM YM SMAJ36A SMAJ36CA CP YP SMAJ40A SMAJ40CA CR YR SMAJ43A SMAJ43CA CT YT SMAJ45A SMAJ45CA CV YV SMAJ48A SMAJ48CA CX YX SMAJ51A SMAJ51CA CZ YZ SMAJ54A SMAJ54CA RE ZE SMAJ58A SMAJ58CA RG ZG SMAJ60A SMAJ60CA RK ZK SMAJ64A SMAJ64CA RM ZM ...

Page 3

Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 1 - Peak Pulse Power Rating Curve 10 1 0.2x0.2" (5.0x5.0mm) Copper Pad Area 0.1 0.000001 0.00001 0.0001 t -Pulse Width (sec.) d Figure 3 - Pulse Waveform 150 ...

Page 4

Transient Voltage Suppression Diodes Surface Mount – 400W > SMAJ series Soldering Parameters Reflow Condition - Temperature Min (T ) s(min) Pre Heat - Temperature Max (T ) s(max) - Time (min to max Average ramp up ...

Page 5

Part Numbering System SMAJ XXX VOLTAGE TOLERANCE BI-DIRECTIONAL VOLTAGE SERIES Packaging Component Part number Quantity Package SMAJxxxXX DO-214AC 5000 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.Littelfuse.com/series/SMAJ.html for current information. Transient ...

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