SMAJ33A Littelfuse Inc, SMAJ33A Datasheet
SMAJ33A
Manufacturer Part Number
SMAJ33A
Description
DIODE TVS 33V 400W UNI 5% SMA
Manufacturer
Littelfuse Inc
Series
SMAJr
Datasheet
1.4879768.pdf
(5 pages)
Specifications of SMAJ33A
Package / Case
DO-214AC, SMA
Voltage - Reverse Standoff (typ)
33V
Voltage - Breakdown
36.7V
Power (watts)
400W
Polarization
Unidirectional
Mounting Type
Surface Mount
Polarity
Unidirectional
Channels
1 Channel
Clamping Voltage
53.3 V
Operating Voltage
33 V
Breakdown Voltage
36.7 V
Termination Style
SMD/SMT
Peak Surge Current
7.5 A
Peak Pulse Power Dissipation
400 W
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 65 C
Dimensions
2.79 mm W x 4.5 mm L x 2.29 mm H
Number Of Elements
1
Package Type
DO-214AC
Operating Temperature Classification
Military
Reverse Breakdown Voltage
36.7V
Reverse Stand-off Voltage
33V
Leakage Current (max)
1uA
Peak Pulse Current
7.5A
Test Current (it)
1mA
Operating Temp Range
-65C to 150C
Mounting
Surface Mount
Pin Count
2
Lead Free Status / RoHS Status
Lead free by exemption / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free by exemption / RoHS Compliant
Other names
SMAJ33ALFTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SMAJ33A
Manufacturer:
LITTE
Quantity:
5 000
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SMAJ33A
Manufacturer:
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Part Number:
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Company:
Part Number:
SMAJ33A-E3/61
Manufacturer:
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Part Number:
SMAJ33A-E3/61(CM)
Manufacturer:
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Part Number:
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Manufacturer:
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Company:
Part Number:
SMAJ33A-TR
Manufacturer:
STMicroe
Quantity:
88 000
Company:
Part Number:
SMAJ33A-TR
Manufacturer:
TA-I
Quantity:
4 122
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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SMAJ33A 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
... SMAJ18CA BT XT SMAJ20A SMAJ20CA BV XV SMAJ22A SMAJ22CA BX XX SMAJ24A SMAJ24CA BZ XZ SMAJ26A 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 ...
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 ...