TVS Diodes
Surface Mount > 500W > SZNS6A5.0FT3G
OBSOLETE/EOL
SZNS6A5.0AFT3G Series
Pb
DATE Dec/31/2017,
REPLACED BY TPSMA6LSeries
Description
The SZNS6AxxAFT3G series is designed to protect voltage
sensitive components from high voltage, high energy
transients. This device has excellent clamping capability,
high surge capability, low zener impedance and fast
response time. The SZNS6AxxAFT3G series is ideally
suited for use in computer hard disk drives, communication
systems, automotive, numerical controls, process controls,
medical equipment, business machines, power supplies
and many other industrial/consumer applications.
Features
• Peak Reverse Working Voltage Range − 5 V to 64 V
• Peak Pulse Power of 500 W (10 x 1000 sec)
Maximum Ratings and Thermal Characteristics
Rating
• ESD Rating of Class 3 (>16 kV) per Human Body Model
Symbol
Value
Unit
Peak Power Dissipation (Note 1) @ TL =
25°C, Pulse Width = 1 ms
PPK
500
W
DC Power Dissipation (Note 3)
@ TA = 75°C
PD
DC Power Dissipation (Note 3) @ TA =
Forward Surge Current (Note 4) @ TA =
25°C
Operating and Storage Temperature
Range
1.5
W
20
mW/°C
R8JL
50
°C/W
PD
0.5
W
4.0
mW/°C
250
°C/W
25°C Derate Above 25°C
Thermal Resistance from Junction−to−
Ambient
• Fast Response Time
• Low Profile Package
Derate Above 75°C
Thermal Resistance from Junction−to−
Ambient
• ESD Rating of Class 4 (>8 kV) IEC 61000−4−2
R8JA
• These Devices are Pb−Free and are RoHS Compliant
• SZ Prefix for Automotive and Other Applications Requiring
Unique Site and Control
Change Requirements;
Bi-directional
AEC−Q101 Qualified and PPAP Capable
Functional Diagram
Cathode
IFSM
40
A
TJ, Tstg
−65 to
+150
°C
Anode
Additional Information
Notes:
1. 10 X 1000 µs, non−repetitive.
2. 1 in square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403AA case
outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per minute
maximum
Uni-directional
Datasheet
Resources
Samples
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/03/17
TVS Diodes
Surface Mount > 500W > SZNS6A5.0FT3G
I-V Curve Characteristics (T
A
= 25°C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 5) = 30 A)
Symbol
I
I
I
I
Parameter
IPP
Maximum Reverse Peak Pulse Current
VC
Clamping Voltage @ IPP
VRWM
Working Peak Reverse Voltage
IR
Maximum Reverse Leakage Current @ VRWM
VBR
Breakdown Voltage @ IT
IT
Test Current
IT
Forward Current
IF
Forward Voltage
VF
Forward Voltage @ IF
5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle.
Ratings and Characteristic Curves
PULSE WIDTH (tP) IS DEFINED AS
THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50% OF I PP.
t ʺ 10 s
100
Figure 2. Pulse Derating Curve
VALUE (%)
PEAK VALUE - IPP
HALF VALUE 50
IPP
2
tP
0
01
23
160
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ TA = 25° C
Figure 1. 10 x 1000 µs Pulse Waveform
140
120
100
80
60
40
20
0
4
02
55
07
51
00
125
TA, AMBIENT TEMPERATURE (°C)
t, TIME (ms)
Figure 3. Typical Protection Circuit
Zin
Vin
LOAD
VL
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/03/17
150
TVS Diodes
Surface Mount > 500W > SZNS6A5.0FT3G
Electrical Characteristics (T =25°C unless otherwise noted, V
A
Device*
Device
Marking
F
V
RWM
(Note 6)
= 3.5 V Max. @ IF (Note 6) = 50 A)
Breakdown Voltage
IR @ VRWM
VBR (Note 7) (V)
VC @ IPP (Note 8)
@ IT
VC
Ipp
Ctyp
(Note 9)
V
μA
MIN
NOM
MAX
mA
V
A
pF
SZNS6A5.0AFT3G
6AA
5
800
6.4
6.70
7
10
9.2
65.2
2700
SZNS6A6.0AFT3G**
6AB
6
800
6.67
7.02
7.37
10
10.3
58.3
2300
SZNS6A6.5AFT3G**
6AC
6.5
500
7.22
7.60
7.98
10
11.2
53.6
2140
SZNS6A7.0AFT3G**
6AD
7
500
7.78
8.19
8.6
10
12
50
2005
SZNS6A7.5AFT3G**
6AE
7.5
100
8.33
8.77
9.21
1
12.9
46.5
1890
SZNS6A8.0AFT3G**
6AF
8
50
8.89
9.36
9.83
1
13.6
44.1
1780
SZNS6A8.5AFT3G
6AG
8.5
10
9.44
9.92
10.4
1
14.4
41.7
1690
SZNS6A9.0AFT3G**
6AH
9
5
10
10.55
11.1
1
15.4
39
1605
SZNS6A10AFT3G**
6AI
10
5
11.1
11.70
12.3
1
17
35.3
1460
SZNS6A11AFT3G**
6AL
11
5
12.2
12.85
13.5
1
18.2
33
1345
SZNS6A12AFT3G
6AJ
12
5
13.3
14.00
14.7
1
19.9
30.2
1245
SZNS6A13AFT3G
6AK
13
5
14.4
15.15
15.9
1
21.5
27.9
1160
SZNS6A14AFT3G**
6AM
14
5
15.6
16.40
17.2
1
23.2
20.5
1085
SZNS6A15AFT3G
6AN
15
5
16.7
17.60
18.5
1
24.4
20.0
1020
SZNS6A16AFT3G**
6AO
16
5
17.8
18.75
19.7
1
26
19.5
965
SZNS6A17AFT3G**
6AP
17
5
18.9
19.90
20.9
1
27.6
19.0
915
SZNS6A18AFT3G**
6AQ
18
5
20
21.05
22.1
1
29.2
18.5
870
SZNS6A20AFT3G**
6AR
20
5
22.2
23.35
24.5
1
32.4
17.5
790
SZNS6A22AFT3G
6AS
22
5
24.4
25.65
26.9
1
35.5
16.5
730
SZNS6A24AFT3G
6AT
24
5
26.7
28.10
29.5
1
38.9
15.4
675
SZNS6A26AFT3G**
6AU
26
5
28.9
30.40
31.9
1
42.1
14.2
630
SZNS6A28AFT3G
6AV
28
5
31.1
32.75
34.4
1
45.4
13.2
590
SZNS6A30AFT3G
6AW
30
5
33.3
35.05
36.8
1
48.4
12.4
555
SZNS6A33AFT3G
6AX
33
5
36.7
38.65
40.6
1
53.3
11.3
510
SZNS6A36AFT3G
6AY
36
5
40
42.10
44.2
1
58.1
10.3
470
SZNS6A40AFT3G**
6AZ
40
5
44.4
46.75
49.1
1
64.5
9.3
430
SZNS6A43AFT3G**
6A0
43
5
47.8
50.30
52.8
1
69.4
8.6
400
SZNS6A45AFT3G**
6A1
45
5
50
52.65
55.3
1
72.2
8.3
385
SZNS6A48AFT3G**
6A2
48
5
53.3
56.10
58.9
1
77.4
7.7
365
SZNS6A51AFT3G**
6A3
51
5
56.7
59.70
62.7
1
82.4
7.3
345
SZNS6A54AFT3G**
6A4
54
5
60
63.15
66.3
1
87.1
6.9
330
SZNS6A58AFT3G**
6A5
58
5
64.4
67.80
71.2
1
93.6
6.4
310
SZNS6A60AFT3G**
6A7
60
5
66.7
70.20
73.7
1
96.8
6.2
300
SZNS6A64AFT3G
6A8
64
5
71.1
74.85
78.6
1
103
5.8
280
Notes:
**In development. Contact local sales rep for availability.
6. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak operating
voltage level.
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 1.
9. Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/03/17
TVS Diodes
Surface Mount > 500W > SZNS6A5.0FT3G
Dimensions
Soldering Footrpint
E
E1
D
TOP VIEW
A
c
2X
C
SIDE VIEW
SEATING
PLANE
ORDERING INFORMATION
Device
b
2X
L
BOTTOM VIEW
Dim
Millimeters
Min
Max
A
0.90
1.10
b
1.25
1.65
c
0.15
0.30
D
2.40
2.80
E
4.80
5.40
E1
4.00
4.60
L
0.70
1.10
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.
Package
Shipping†
SMA-FL
(Pb−Free)
SZNS6AxxAFT3G
5000 /
Tape & Reel
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
260ºC
Dipping Time :
10 seconds
Physical Specifications
Case
Void-free, transfer-molded, thermosetting
plastic
Polarity
Cathode indicated by polarity band
Leads
Modified L−Bend providing more contact
area to bond pads
Finish
All external surfaces are corrosion
resistant and leads arereadily solderable
2. CONTROLLING DIMENSION: MILLIMETERS.
Part Marking System
Disclaimer Notice - Information furnished is believed to be accurate and
reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are
not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/03/17
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