UNISONIC TECHNOLOGIES CO., LTD
SMDJXXX
SURFACE MOUNT TRANSIENT
VOLTAGE SUPPRESSORS
DESCRIPTION
+
-
SMC
(JEDEC DO-214AB)
TVS
The UTC
SMDJXXX
is a surface mount transient voltage
supperssors, it uses UTC’s advanced technology to provide
customers with low leakage and very fast response time, etc.
FEATURES
* Excellent clamping capability
* Low leakage
* Very fast response time
SYMBOL
ORDERING INFORMATION
Ordering Number
Halogen Free
SMDJXXXG-SMC-R
A: Anode
Package
SMC
Pin Assignment
1
2
K
A
Packing
Tape Reel
Lead Free
SMDJXXXL-SMC-R
Note: Pin Assignment: K: Cathode
SMDJXXXL-SMC-R
(1)Packing Type
(2)Package Type
(3)Halogen Free
(4)Category
(5)Output Voltage Code
(1) R: Tape Reel
(2) SMC: SMC
(3) L: Lead Free, G: Halogen Free
(4) A: 5% uni-directional
(5) xx: refer to ELECTRICAL CHARACTERISTICS
MARKING
UTC
SMDJXXX
Date Code
Category
Voltage Code
Cathode Band for
uni-directional Only
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Copyright © 2015 Unisonic Technologies Co., Ltd
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SMDJXXX
ABSOLUTE MAXIMUM RATING
(T
A
=25°C unless otherwise noted)
RATINGS
3000
See ELECTRICAL
CHARACTERISTICS Table
6.0
PARAMETER
SYMBOL
Peak Power Dissipation with a 10/1000μs Waveform (Note 2)
P
PP
Peak Pulse Current with a 10/1000μs Waveform (Note 2)
I
PP
TVS
UNIT
W
A
Power Dissipation On Infinite Heatsink at T
L
= 75°C
P
D
W
Peak Forward Surge Current, 8.3 ms Single Half Sine-wave
I
FSM
300
A
Unidirectional Only (Note 3)
Maximum Instantaneous Forward Voltage at 50 A for
V
F
3.5/5.0
V
Unidirectional Only (Note 4)
Operating Junction Temperature
T
J
-55~+150
°C
Storage Temperature
T
STG
-55~+150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Non-repetitive current pulse and derated above T
A
=25°C
3. Measured on 8.3ms single half sine-wave or equivalent square wave, duty cycle=4 pulses per minute
maximum.
4. V
F
<3.5V for devices of V
BR
<200V and V
F
<5.0V for devices of V
BR
>201V.
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, unless otherwise noted)
BREAKDOWN VOLTAGE
V
BR
@ I
T
PART NUMBER (Uni)
MIN (V)
SMDJ24A
SMDJ28A
SMDJ33A
26.70
31.10
36.70
MAX (V)
29.50
34.40
40.60
I
T
(mA)
5
5
5
MAXIMUM WORKING
REVERSE
PEAK
LEAKAGE I
R
REVERSE
VOLTAGE
@ V
RWM
V
RWM
(V)
(µA)
2
2
2
24.0
28.0
33.0
MAXIMUM
REVERSE
SURGE
CURRENT
I
PP
(A)
77.12
66.08
56.29
MAXIMUM
CLAMPING
VOLTAGE
V
C
@ I
PP
(V)
38.9
45
53.3
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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SMDJXXX
TVS
TYPICAL CHARACTERISTICS
(T
A
=25°C, unless otherwise noted)
Peak Pulse Derating in Percentage of
Peak Power or Current (%)
Peak Forward Surge Current (A)
Fig 4. Peak Pulse Power Rating Curve
100
Peak Power (kW)
0
25 50 75 100 125 150 175 200
Lead Temperature, T
L
(°C)
10
1
0
0.1
0.1
Steady State Power Dissipation (W)
Fig 3. Steady State Power Derating Curve
6.0
5.0
4.0
3.0
2.0
1.0
1
100
1000 10000
10
Pulse Width, t
d
(µs)
Peak Pulse Current (% )
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R229-003.C
SMDJXXX
TVS
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R229-003.C
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