OBSOLETE/EOL
NSA5.0AFT3G
DATE
June/30/2018
PCN/ECN#
LFPCN41246
REPLACED BY
SMA6L Series
400 Watt Peak Power Zener
Transient Voltage
Suppressor
Unidirectional
The NSA5.0AFT3G is designed to protect voltage sensitive
components from high voltage, high energy transients. It has
excellent clamping capability, high surge capability, low zener
impedance and a fast response time. The NSA5.0AFT3G is ideally
suited for use in communication systems, automotive, numerical
controls, process controls, medical equipment, business machines,
power supplies and many other industrial/consumer applications.
Features
Littelfuse.com
PLASTIC SURFACE MOUNT
ZENER OVERVOLTAGE
TRANSIENT SUPPRESSOR
400 W PEAK POWER
•
•
•
•
•
•
•
•
Peak Power
−
400 W @ 1 ms
ESD Rating of Class 3 (> 16 kV) per Human Body Model
ESD Rating IEC 61000−4−2 (> 30 kV)
Response Time is Typically < 1 ns
Flat Handling Surface for Accurate Placement
Package Design for Top Slide or Bottom Circuit Board Mounting
Low Profile Package
This is a Pb−Free Device
CATHODE
ANODE
SMA−FL
CASE 403AA
MARKING DIAGRAM
4AA
AYWWG
4AA
A
Y
WW
G
= Device Code
= Assembly Location
= Year
= Work Week
= Pb−Free Package
Mechanical Characteristics:
CASE:
Void-free, transfer-molded plastic
FINISH:
All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260°C for 10 Seconds
POLARITY:
Cathode indicated by molded polarity notch or polarity
band
MOUNTING POSITION:
Any
ORDERING INFORMATION
Device
NSA5.0AFT3G
Package
SMA−FL
(Pb−Free)
Shipping
5000/Tape & Reel
DEVICE MARKING INFORMATION
See specific marking information in the device marking
column of the Electrical Characteristics table on page 2 of
this data sheet.
Specifications subject to change without notice.
© 2016 Littelfuse, Inc.
September 19, 2016 − Rev.
0
1
Publication Order Number:
NSA5.0AF/D
NSA5.0AFT3G
MAXIMUM RATINGS
Rating
Peak Power Dissipation (Note 1) @ T
L
= 25°C, Pulse Width = 1 ms
DC Power Dissipation @ T
L
= 75°C
Measured Zero Lead Length (Note 2)
Derate Above 75°C
Thermal Resistance from Junction to Lead
DC Power Dissipation (Note 3) @ T
A
= 25°C
Derate Above 25°C
Thermal Resistance from Junction to Ambient
Forward Surge Current (Note 4) @ T
A
= 25°C
Operating and Storage Temperature Range
Symbol
P
PK
P
D
R
qJL
P
D
R
qJA
I
FSM
T
J
, T
stg
Value
400
1.5
20
50
0.5
4.0
250
40
−65 to +150
Unit
W
W
mW/°C
°C/W
W
mW/°C
°C/W
A
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. 10 X 1000
ms,
non−repetitive.
2. 1″ 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.
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise noted)
Symbol
I
PP
V
C
V
RWM
I
R
V
BR
I
T
I
F
V
F
Parameter
Maximum Reverse Peak Pulse Current
Clamping Voltage @ I
PP
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ V
RWM
Breakdown Voltage @ I
T
Test Current
Forward Current
Forward Voltage @ I
F
V
C
V
BR
V
RWM
I
F
I
I
R
V
F
I
T
V
I
PP
Uni−Directional TVS
ELECTRICAL CHARACTERISTICS
V
RWM
(Note 5)
Volts
I
R
@
V
RWM
mA
Breakdown Voltage
V
BR
(Volts)
(Note 6)
Min
Nom
Max
@ I
T
mA
V
C
@ I
PP
(Note 7)
V
C
Volts
I
PP
Amps
C Typ.
(Note 8)
pF
V
F
@ I
F
(Note 9)
Max
V
Device
Device
Marking
NSA5.0AFT3G
QA
5.0
400
6.4
6.7
7.0
10
9.2
43.5
2450
3.5
5. A transient suppressor is normally selected according to the working peak reverse voltage (V
RWM
), which should be equal to or greater than
the DC or continuous peak operating voltage level.
6. V
BR
measured at pulse test current I
T
at an ambient temperature of 25°C.
7. Surge current waveform per Figure 2 and derate per Figure 3.
8. Bias voltage = 0 V, F = 1.0 MHz, T
J
= 25°C.
9. 1/2 sine wave or equivalent, PW = 8.3 ms, non−repetitive, I
F
= 30 A.
Specifications subject to change without notice.
© 2016 Littelfuse, Inc.
September 19, 2016 − Rev.
0
2
Publication Order Number:
NSA5.0AF/D
NSA5.0AFT3G
RATING AND TYPICAL CHARACTERISTIC CURVES
100
Ippm, PEAK PULSE CURRENT (%)
NONREPETITIVE
PULSE WAVEFORM
SHOWN IN FIGURE 2.
T
A
= 25°C
120
≤
10
ms
100
80
60
40
20
0
0.001
0.1
0.01
t
P
, PULSE WIDTH (ms)
1
10
PEAK VALUE
I
ppm
T
A
= 25°C
PW (I
D
) IS DEFINED AS THE
POINT WHERE THE PEAK CURRENT
DECAYS TO 50% OF I
pp
.
Ppk , PEAK POWER (kW)
10
HALF VALUE - I
pp
/2
10/1000
ms
WAVEFORM
AS DEFINED BY R.E.A.
t
d
0
1
2
3
t, TIME (ms)
4
5
1
0.1
10
-4
Figure 1. Pulse Rating Curve
Figure 2. Pulse Waveform
120
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
100
80
60
40
20
0
10 x 1000 WAVEFORM
AS DEFINED BY R.E.A.
10,000
NSA5.0AF
T
J
= 25°C
F = 1 MHz
C, CAPACITANCE (pF)
0
40
80
120
160
T
A
, AMBIENT TEMPERATURE (°C)
200
1,000
100
10
1
1
10
BIAS VOLTAGE (VOLTS)
100
Figure 3. Pulse Derating Curve
Figure 4. Typical Junction Capacitance vs.
Bias Voltage
PD , MAXIMUM POWER DISSIPATION (WATTS)
6
5
4
3
2
1
0
0
25
50
100
75
T, TEMPERATURE (°C)
125
150
@ T
A
= 25°C
P
D
= 0.5 W
@ T
L
= 75°C
P
D
= 1.5 W
Figure 5. Steady State Power Derating
Specifications subject to change without notice.
© 2016 Littelfuse, Inc.
September 19, 2016 − Rev.
0
3
Publication Order Number:
NSA5.0AF/D
NSA5.0AFT3G
PACKAGE DIMENSIONS
SMA−FL
CASE 403AA−01
ISSUE O
E
E1
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
D
TOP VIEW
A
DIM
A
b
c
D
E
E1
L
MILLIMETERS
MIN
MAX
0.90
1.10
1.25
1.65
0.15
0.30
2.40
2.80
4.80
5.40
4.00
4.60
0.70
1.10
c
RECOMMENDED
SOLDER FOOTPRINT
SIDE VIEW
C
SEATING
PLANE
1.76
5.56
2X
b
1.30
2X
L
DIMENSIONS: MILLIMETERS
BOTTOM VIEW
Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military,
aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or
any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property
damage) other than those expressly set forth in applicable Littelfuse
product documentation.
Warranties granted by Littelfuse shall be
deemed void for products used for any purpose not expressly set forth in applicable
Littelfuse documentation. Littelfuse shall not be
liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in
applicable
Littelfuse documentation. The sale and use of Littelfuse products
is subject to Littelfuse Terms and Conditions of Sale,
unless otherwise agreed by Littelfuse.
Littelfuse.com
Specifications subject to change without notice.
© 2016 Littelfuse, Inc.
September 19, 2016 − Rev.
0
4
Publication Order Number:
NSA5.0AF/D
Mouser Electronics
Authorized Distributor
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:
NSA5.0AFT3G
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