SMBJ28A Littelfuse Inc, SMBJ28A Datasheet
SMBJ28A
Manufacturer Part Number
SMBJ28A
Description
DIODE TVS 28V 600W UNI-DIR SMB
Manufacturer
Littelfuse Inc
Series
SMBJr
Datasheet
1.4879374.pdf
(5 pages)
Specifications of SMBJ28A
Package / Case
DO-214AA, SMB
Voltage - Reverse Standoff (typ)
28V
Voltage - Breakdown
31.1V
Power (watts)
600W
Polarization
Unidirectional
Mounting Type
Surface Mount
Polarity
Unidirectional
Channels
1 Channel
Clamping Voltage
45.4 V
Operating Voltage
28 V
Breakdown Voltage
31.1 V
Termination Style
SMD/SMT
Peak Surge Current
13.3 A
Peak Pulse Power Dissipation
600 W
Maximum Operating Temperature
+ 150 C
Minimum Operating Temperature
- 65 C
Dimensions
3.94 mm W x 5.59 mm L x 2.44 mm H
Number Of Elements
1
Package Type
SMB
Operating Temperature Classification
Military
Reverse Breakdown Voltage
31.1V
Reverse Stand-off Voltage
28V
Leakage Current (max)
1uA
Peak Pulse Current
13.3A
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
SMBJ28ACCTR
SMBJ28ACCTR
SMBJ28ALFTR
SMBJ28ACCTR
SMBJ28ALFTR
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Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above T
2. Mounted on copper pad area of 0.2x0.2” (5.0 x 5.0mm) 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/SMBJ.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 50A 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, duty cycle=4 per minute maximum.
AGENCY
A
F
<3.5V for V
=25ºC by 10x1000μs waveform
A
RoHS
=25
O
A
C unless otherwise noted)
=50
BR
<
_
O
200V and V
C
SMBJ Series
F
<5.0V for V
AGENCY FILE NUMBER
BR
E128662/E230531
>
_
201V.
Symbol
T
P
J
P
I
, T
R
R
M(AV)
FSM
V
PPM
uJL
uJA
F
STG
A
= 25
Transient Voltage Suppression Diodes
Surface Mount – 600W > SMBJ series
-65 to 150
3.5V/5.0
O
Value
C per Fig. 2.
600
100
100
5.0
20
°C/W
°C/W
Unit
Revision: January 09, 2009
W
W
°C
A
V
23
Description
The SMBJ 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
temperature coefficient
ΔV
junction
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
bus and other vulnerable circuits used in Telecom,
BR
= 0.1% x V
BR
@25°C x ΔT
typically less than 1.0ps
from 0V to BV min
capability
resistance
above 12V
soldering guaranteed:
260°C/40 seconds at
terminals
Underwriters Laboratory
Flammability 94V-O
R
less than 1μA
SMBJ Series
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SMBJ28A Summary of contents
Page 1
SMBJ Series RoHS Agency Approvals AGENCY AGENCY FILE NUMBER E128662/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
... SMBJ16CA LP BP SMBJ17A SMBJ17CA LR BR SMBJ18A SMBJ18CA LT BT SMBJ20A SMBJ20CA LV BV SMBJ22A SMBJ22CA LX BX SMBJ24A SMBJ24CA LZ BZ SMBJ26A SMBJ26CA ME CE SMBJ28A SMBJ28CA MG CG SMBJ30A SMBJ30CA MK CK SMBJ33A SMBJ33CA MM CM SMBJ36A SMBJ36CA MP CP SMBJ40A SMBJ40CA MR CR SMBJ43A SMBJ43CA MT CT SMBJ45A SMBJ45CA MV CV ...
Page 3
Ratings and Characteristic Curves (T =25°C unless otherwise noted) A Figure 1 - Peak Pulse Power Rating 100 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 – 600W > SMBJ 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
Dimensions DO-214AA (SMB J-Bend) Cathode Band Part Numbering System SMBJ XXX VOLTAGE TOLERANCE BI-DIRECTIONAL VOLTAGE SERIES Packaging Component Part number Quantity Package SMBJxxxXX DO-214AA ©2009 ...