SMAJ170A Littelfuse Inc, SMAJ170A Datasheet

TVS-DIODE, 400W, 275V, UNIDIRECTIONAL, DO-214AC

SMAJ170A

Manufacturer Part Number
SMAJ170A
Description
TVS-DIODE, 400W, 275V, UNIDIRECTIONAL, DO-214AC
Manufacturer
Littelfuse Inc
Series
SMAJr
Datasheet

Specifications of SMAJ170A

Reverse Stand-off Voltage Vrwm
170V
Breakdown Voltage Range
189V To 209V
Clamping Voltage Vc Max
275V
Diode Configuration
Unidirectional
Peak Pulse Current Ippm
1.5A
Voltage - Reverse Standoff (typ)
170V
Voltage - Breakdown
189V
Power (watts)
400W
Polarization
Unidirectional
Mounting Type
Surface Mount
Package / Case
DO-214AC, SMA
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SMAJ170ALFTR

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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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SMAJ170A 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

... RX ZX SMAJ100A SMAJ100CA RZ ZZ SMAJ110A SMAJ110CA SE VE SMAJ120A SMAJ120CA SG VG SMAJ130A SMAJ130CA SK VK SMAJ150A SMAJ150CA SM VM SMAJ160A SMAJ160CA SP VP SMAJ170A SMAJ170CA SR VR SMAJ180A SMAJ180CA ST VT SMAJ200A SMAJ200CA SV VV SMAJ220A SMAJ220CA SX VX SMAJ250A SMAJ250CA SZ VZ SMAJ300A SMAJ300CA TE UE SMAJ350A SMAJ350CA TG UG SMAJ400A SMAJ400CA ...

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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