Formosa MS

SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
List
List................................................................................................. 1
Package outline............................................................................... 2
Features.......................................................................................... 2
Mechanical data............................................................................... 2
Maximum ratings ............................................................................. 2
Electrical characteristics................................................................... 3~4
Rating and characteristic curves........................................................ 4~5
Pinning information........................................................................... 6
Marking............................................................................................ 6
Suggested solder pad layout.............................................................. 6
Packing information.......................................................................... 7
Reel packing.................................................................................... 8
Suggested thermal profiles for soldering processes............................. 8
High reliability test capabilities........................................................... 9
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 1
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
400W Surface Mount Transient Voltage
Suppressors- 5.0V- 440V
Package outline
Features
SMA-S
• 400W peak pulse power capability with a 10/1000 μ s
waveform, repetition rate (duty cycle): 0.01%.
• Low profile surface mounted application in order to
optimize board space.
• Excellent clamping capability.
• Low incremental surge resistance.
• Fast response time from 0V to VBR, typically less than
1 ps for uni-directional & 5 ns for bi-directional types.
• Glass passivated chip junction.
• Lead-free parts meet RoHS requirments.
• Suffix "-H" indicates Halogen-free part, ex. SMAS5.0A-H.
0.213(5.4)
0.197(5.0)
0.012(0.3) Typ.
0.063(1.6)
0.106(2.7)
0.091(2.3)
0.055(1.4)
Mechanical data
0.071(1.8)
0.060(1.5)
0.040(1.0) Typ.
• Epoxy:UL94-V0 rated flame retardant
• Case : Molded plastic, DO-214AC / SMA-S
• Terminals : Solder plated, solderable per
0.040 (1.0) Typ.
Dimensions in inches and (millimeters)
MIL-STD-750, Method 2026
• Polarity : Indicated by cathode band
• Mounting Position : Any
• Weight : Approximated 0.05 gram
Maximum ratings (AT
o
T A=25 C unless otherwise noted)
PARAMETER
CONDITIONS
Symbol
Value
UNIT
Peak Power Dissipation
with a 10/1000 μ s waveform,
Note 1, 2 & Fig. 1
P PPM
400
W
Peak Pulse current
with a 10/1000 μ s waveform
I PPM
See Table 1
A
O
Steady State Power Dissipation
at T L=75 C , Note 2
P M(AV)
1.0
W
Peak Forward Surge Current
8.3ms Single Half Sine-Wave, Note 3
I FSM
40
A
Maximum Instantaneours Forward Voltage
at 25A
For Uni-Directional Types Only, Note 4
VF
3.5/6.5
Operating temperature range
TJ
Storage temperature range
T STG
V
-55 ~ +150
O
C
-55 ~ +150
O
C
O
Note 1. Non-repetitive current pulse, per Fig. 3 and derated above T A=25 C per Fig. 2
2. Mounted on copper pad area of 0.2"x0.2" (5.0x5.0 mm) per Fig 5
3. Measured on 8.3 ms single half sine-wave or equivalent square wave, duty cycle=4 pulses per minute maximum
4. V F < 3 . 5V for V BR < 200V and V F< 6 . 5V for V BR > 201V .
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 2
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
Electrical characteristics (at T =25 C unless otherwise noted)
o
A
Reverse
Stand-off
Voltage
Part No.
(Uni)
Part No.
(Bi)
SMAS5.0A
SMAS5.0CA
5.0
SMAS6.0A
Breakdown Voltage @I T
V RWM
V BR Min
V BR Max
Volts
Volts
6.40
Test
Current
Maximum Clamping
Voltage @I PP
I PP
Maximum
Reverse
Leakage
Current
Marking Code
I R@V RWM
IT
VC
Volts
mA
Volts
A
μA
UNI
BI
7.00
10
9.2
43.5
800
AE
WE
SMAS6.0CA
6.0
6.67
7.37
10
10.3
38.0
800
AG
WG
SMAS6.5A
SMAS6.5CA
6.5
7.22
7.98
10
11.2
35.7
500
AK
WK
SMAS7.0A
SMAS7.0CA
7.0
7.78
8.60
10
12.0
33.3
200
AM
WM
SMAS7.5A
SMAS7.5CA
7.5
8.33
9.21
1.0
12.9
31.0
100
AP
WP
SMAS8.0A
SMAS8.0CA
8.0
8.89
9.83
1.0
13.6
29.4
50
AR
WR
WT
SMAS8.5A
SMAS8.5CA
8.5
9.44
10.4
1.0
14.4
27.7
20
AT
SMAS9.0A
SMAS9.0CA
9.0
10.0
11.1
1.0
15.4
26.0
10
AV
WV
SMAS10A
SMAS10CA
10
11.1
12.3
1.0
17.0
23.5
5
AX
WX
SMAS11A
SMAS11CA
11
12.2
13.5
1.0
18.2
22.0
5
AZ
WZ
SMAS12A
SMAS12CA
12
13.3
14.7
1.0
19.9
20.1
5
BE
XE
SMAS13A
SMAS13CA
13
14.4
15.9
1.0
21.5
18.6
5
BG
XG
SMAS14A
SMAS14CA
14
15.6
17.2
1.0
23.2
17.2
5
BK
XK
SMAS15A
SMAS15CA
15
16.7
18.5
1.0
24.4
16.4
5
BM
XM
SMAS16A
SMAS16CA
16
17.8
19.7
1.0
26.0
15.4
5
BP
XP
SMAS17A
SMAS17CA
17
18.9
20.9
1.0
27.6
14.5
5
BR
XR
SMAS18A
SMAS18CA
18
20.0
22.1
1.0
29.2
13.7
5
BT
XT
SMAS20A
SMAS20CA
20
22.2
24.5
1.0
32.4
12.3
5
BV
XV
SMAS22A
SMAS22CA
22
24.4
26.9
1.0
35.5
11.2
5
BX
XX
SMAS24A
SMAS24CA
24
26.7
29.5
1.0
38.9
10.3
5
BZ
XZ
SMAS26A
SMAS26CA
26
28.9
31.9
1.0
42.1
9.5
5
CE
YE
SMAS28A
SMAS28CA
28
31.1
34.4
1.0
45.4
8.8
5
CG
YG
SMAS30A
SMAS30CA
30
33.3
36.8
1.0
48.4
8.3
5
CK
YK
SMAS33A
SMAS33CA
33
36.7
40.6
1.0
53.3
7.5
5
CM
YM
SMAS36A
SMAS36CA
36
40.0
44.2
1.0
58.1
6.9
5
CP
YP
SMAS40A
SMAS40CA
40
44.4
49.1
1.0
64.5
6.2
5
CR
YR
SMAS43A
SMAS43CA
43
47.8
52.8
1.0
69.4
5.8
5
CT
YT
SMAS45A
SMAS45CA
45
50.0
55.3
1.0
72.7
5.5
5
CV
YV
SMAS48A
SMAS48CA
48
53.3
58.9
1.0
77.4
5.2
5
CX
YX
SMAS51A
SMAS51CA
51
56.7
62.7
1.0
82.4
4.9
5
CZ
YZ
SMAS54A
SMAS54CA
54
60.0
66.3
1.0
87.1
4.6
5
RE
ZE
SMAS58A
SMAS58CA
58
64.4
71.2
1.0
93.6
4.3
5
RG
ZG
SMAS60A
SMAS60CA
60
66.7
73.7
1.0
96.8
4.1
5
RK
ZK
SMAS64A
SMAS64CA
64
71.1
78.6
1.0
103.0
3.9
5
RM
ZM
SMAS70A
SMAS70CA
70
77.8
86.0
1.0
113.0
3.5
5
RP
ZP
SMAS75A
SMAS75CA
75
83.3
92.1
1.0
121.0
3.3
5
RR
ZR
SMAS78A
SMAS78CA
78
86.7
95.8
1.0
126.0
3.2
5
RT
ZT
SMAS85CA
85
94.4
104
1.0
137.0
2.9
5
RV
ZV
SMAS85A
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 3
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
Electrical characteristics (at T =25 C unless otherwise noted)
o
A
Reverse
Stand-off
Voltage
Part No.
(Uni)
Part No.
(Bi)
V RWM
Volts
Breakdown Voltage @I T
V BR Min
V BR Max
Volts
Test
Current
Maximum Clamping
Voltage @I PP
Maximum
Reverse
Leakage
Current
I PP
Marking Code
I R@V RWM
IT
VC
Volts
mA
Volts
A
μA
UNI
BI
146.0
2.7
5
RX
ZX
RZ
ZZ
90
100
111
1.0
SMAS100A SMAS100CA
100
111
123
1.0
162.0
2.5
5
SMAS110A SMAS110CA
110
122
135
1.0
177.0
2.3
5
SE
VE
147
1.0
193.0
2.1
5
SG
VG
SMAS90A
SMAS90CA
SMAS120A SMAS120CA
120
133
SMAS130A SMAS130CA
130
144
159
1.0
209.0
1.9
5
SK
VK
1.0
243.0
1.6
5
SM
VM
SMAS150A SMAS150CA
150
167
185
SMAS160A SMAS160CA
160
178
197
1.0
259.0
1.5
5
SP
VP
SMAS170A SMAS170CA
170
189
209
1.0
275.0
1.5
5
SR
VR
1.0
292.0
1.4
5
ST
VT
SMAS180A SMAS180CA
180
201
222
SMAS200A SMAS200CA
200
224
247
1.0
324.0
1.2
5
SV
VV
1.0
356.0
1.1
5
SX
VX
SZ
VZ
SMAS220A SMAS220CA
220
246
272
SMAS250A SMAS250CA
250
279
309
1.0
405.0
1.0
5
SMAS300A SMAS300CA
300
335
371
1.0
486.0
0.8
5
TE
UE
1.0
567.0
0.7
5
TG
UG
SMAS350A SMAS350CA
350
391
432
SMAS400A SMAS400CA
400
447
494
1.0
648.0
0.6
5
TK
UK
492
543
1.0
713.0
0.6
5
TM
UM
SMAS440A SMAS440CA
440
Note 1. V BR measured after I T applied for 300us, I T=square wave pulse or equivalent
2. Surge current waveform per Fig. 3 and derated per Fig. 2
3. For bi-directional types having V RWM of 10 volts and less, the I R limit is doubled
4. Suffix ‘C’ denotes bi-directional devices. Suffix ‘A’ denotes 5% tolerance devices, no suffix denotes 10% tolerance devices.
5. All terms and symbols are consistent with ANS/IEEE C62.35
6. Transient Voltage Suppressors (TVS) are devices used to protect vulnerable circuits from electrical overstress such as that caused by electrostatic discharge, inductive load
switching and induced lightning. Within the TVS, damaging voltage spikes are limited by clamping or avalanche action of a rugged silicon pn junction which reduces the
amplitude of the transient to a nondestructive level. See Fig. 7 & Fig. 8
Rating and characteristic curves (SMAS SERIES)
Fig.2 - Pulse Derating Curve
Peak Pulse Power or Current
Derating in Percentage, %
Peak Pulse Power, P PPM (KW)
Fig.1 - Pealk Pulse Power Rating Curve
100
non-repetitive
pulse waveform
shown in Fig. 3
T A =25°C
10
1.0
0.1
0.1 μ
1.0 μ
10 μ
100 μ
1.0m
10m
Pulse Width, td ( sec)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
100
75
50
25
0
0
25
50
75
100
125
150 175
200
Ambient Temperature, T A (°C)
Page 4
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
Rating and characteristic curves (SMAS SERIES)
Junction Capacitance, C J (pF)
Peak Pulse Current, I PPM (%)
Fig.3 - Pulse Waveform
150
tr=10μs
pulse width (td) is defined
as the point where the peak
current decays to 50%
peak value I PPM
100
half value I PPM /2
10/1000 μs waveform
50
td
0
0
1.0
2.0
3.0
4.0
Fig.4 - Typical Junction Capacitance
10000
Bi - directional V = 0V
1000
Bi - directional @ V RWM
10
1
Peak Forward Surge Current, I FSM (A)
Steady State Power Dissipation (W)
60Hz resistive
or inductive load
0.75
0.50
mounted on
0.2"x0.2" (5x5mm)
copper pads to
each terminal
25
50
75
100
10
100
125
150 175
200
Lead Temperature, T L (°C)
Fig. 7 - Transients of several thousand volts can be
clamped to a safe level by the TVS
Fig.6 - Maximum Non-Repetitive
Forward Surge Current
50
8.3ms single half sine-wave
40
30
20
10
1
10
100
Number of Cycles at 60Hz
Fig. 8 - Transient current is divered to ground thru
TVS; the voltage seen by the protected load
is limited to the clamping voltage level
Transient Peak
Transient
Voltage
Clamping
Transient
+
+30V
+20V
1000
Breakdown Voltage, V BR (Volts)
1.00
0
T J =25°C
f=1.0MHz
Vsig=50mVp-p
1.0
Fig.5 - Steady State Power Derating Curve
0
Uni - directional @ V RWM
100
time, t (ms)
0.25
Uni - directional V = 0V
Protected
Load
IC Failure Threshold
Transient
Current
TVS Clamping
Voltage (V C )
TVS
+12V
Normal Operating
Voltage
-
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 5
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
Pinning information
Pin
Simplified outline
Uni-Directional
Pin1 cathode
Pin2 anode
1
Symbol
2
1
2
Bi-Directional
Marking
Type number
Example
Cathode band
FMS logo
Uni-Directional
FMS
AE
Marking code (see page 3 or page 4)
Cathode band
Marking code ( see page 3 or page 4)
Bi-Directional
WE
Cathode band
WE
Marking code 180° rotation
Suggested solder pad layout
C
A
B
Dimensions in inches and (millimeters)
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
PACKAGE
A
B
C
SMA-S
0.063 (1.60)
0.059 (1.50)
0.110 (2.80)
Page 6
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
Packing information
P0
P1
d
E
F
B
A
W
P
D2
D1
T
C
W1
D
unit:mm
Item
Symbol
Tolerance
SMA-S
Carrier width
Carrier length
Carrier depth
Sprocket hole
13" Reel outside diameter
13" Reel inner diameter
7" Reel outside diameter
7" Reel inner diameter
Feed hole diameter
Sprocket hole position
Punch hole position
Punch hole pitch
Sprocket hole pitch
Embossment center
Overall tape thickness
Tape width
Reel width
A
B
C
d
D
D1
D
D1
D2
E
F
P
P0
P1
T
W
W1
0.1
0.1
0.1
0.1
2.0
min
2.0
min
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.3
1.0
2.90
5.50
2.10
1.50
330.00
50.00
178.00
62.00
13.00
1.75
5.50
4.00
4.00
2.00
0.23
12.00
18.00
Note:Devices are packed in accor dance with EIA standar RS-481-A and specifications listed above.
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
Page 7
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
Reel packing
PACKAGE
REEL
(pcs)
COMPONENT
SPACING
(m/m)
BOX
(pcs)
INNER
BOX
(m/m)
REEL
DIA,
(m/m)
7"
2,000
4.0
20,000
183*170*183
178
382*356*387
160,000
15.5
13"
7,500
4.0
15,000
337*337*37
330
350*330*360
120,000
14.2
REEL SIZE
CARTON
SIZE
(m/m)
CARTON
(pcs)
APPROX.
GROSS WEIGHT
(kg)
SMA-S
Suggested thermal profiles for soldering processes
1.Storage environment: Temperature=5 oC ~40 oC Humidity=55%±25%
2.Reflow soldering of surface-mount devices
Critical Zone
TL to TP
Tp
TP
Ramp-up
TL
TL
Tsmax
Temperature
Tsmin
tS
Preheat
Ramp-down
25
t25o C to Peak
Time
3.Reflow soldering
Profile Feature
Soldering Condition
Average ramp-up rate(T L to T P )
o
<3 C /sec
Preheat
-Temperature Min(Tsmin)
-Temperature Max(Tsmax)
-Time(min to max)(t s )
o
150 C
o
200 C
60~120sec
Tsmax to T L
-Ramp-upRate
o
<3 C /sec
Time maintained above:
-Temperature(T L )
-Time(t L )
o
217 C
60~260sec
o
o
255 C- 0/ + 5 C
Peak Temperature(T P )
o
Time within 5 C of actual Peak
Temperature(t P )
10~30sec
Ramp-down Rate
<6 C /sec
o
o
Time 25 C to Peak Temperature
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
<6minutes
Page 8
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9
SMD Transient Voltage Suppressor
Formosa MS
SMAS Series
High reliability test capabilities
Item Test
Conditions
Reference
O
MIL-STD-750D
METHOD-2031
O
MIL-STD-202F
METHOD-208
1. Solder Resistance
at 260 ± 5 C for 10 ± 2sec.
immerse body into solder 1/16" ± 1/32"
2. Solderability
at 245 ± 5 C for 5 sec.
3. High Temperature Reverse Bias
V RWM=80% rate at T J=150 C for 168 hrs.
4. Pressure Cooker
15P SIG at T A=121 C for 4 hrs.
5. Temperature Cycling
-55 C to +125 C dwelled for 30 min.
and transferred for 5min. total 10 cycles.
JESD22-A102
O
O
MIL-STD-750D
METHOD-1051
O
O
6. Thermal Shock
MIL-STD-750D
METHOD-1038
O
MIL-STD-750D
METHOD-1056
O
0 C for 5 min. rise to 100 C for 5 min. total 10 cycles.
MIL-STD-750D
METHOD-1021
O
7. Humidity
at T A=85 C , RH=85% for 1000hrs.
MIL-STD-750D
METHOD-1031
O
8. High Temperature Storage Life
http://www.formosams.com/
TEL:886-2-22696661
FAX:886-2-22696141
at 175 C for 1000 hrs.
Page 9
Document ID
Issued Date
DS-121837
2010/06/10
Revised Date
2012/11/21
Revision
Page.
F
9