Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2002
5-08-2003 REV 0
WWW.
Microsemi
.
COM
UMAF5.0A thru UMAF170CA
U
LTRA
M
ITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
S C O T T S D A L E
D I V I S I O N
UMAF5.0A thru
UMAF170CA
E
NVIRONMENTALLY
L
EAD
-F
REE
DESCRIPTION
PACKAGE
These 500 watt transient voltage suppressors offer power-handling capabilities only
found in larger packages. They are also environmentally Lead-Free both externally
and internally. They are used for protecting against a variety of transients from
inductive switching environments or lower levels of induced secondary lightning effects
of IEC61000-4-5.
It offers the same size footprint as the popular DO-214AC or
BA package outlines except with a much lower profile height. Its robust
configuration in a "2010" style MELF package prevents damage to extended-
lead terminals and virtually eliminates inductive parasitics from fast rise-time
transients with very short internal/external conduction paths. They a
re also very
effective in protection from ESD or EFT per IEC61000-4-2 and IEC61000-4-4.
UltraMite
IMPORTANT: For the most current data, consult MICROSEMI's website:
http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
Available as a unidirectional or bidirectional device
(bidirectional with CA suffix)
Fast response time
Suppresses transients up to 500 W @ 10/1000 s (see
Figure 1, 2, and 3).
Robust 2010 MELF style flat package configuration for
accurate pick-and-place handling
Fits same small narrow PCB pad layouts as "SMAJ"
packages in JEDEC DO-214AC (or BA)
Very low height profile (approx 1 mm)
Available on Tape and Reel
Built-in stress relief with similar COE as PC boards
Lead-Free construction externally and internally
Optional Lead-Tin finish (UMA5.0A-170CA)
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers
Protects sensitive components such as IC's, CMOS,
Bipolar, BiCMOS, ECL, DTL, T
2
L, etc.
Protection from switching transients & induced RF
Compliant to IEC61000-4-2 and IEC61000-4-4 for ESD
and EFT protection respectively
Secondary lightning protection per IEC61000-4-5 with
42 Ohms source impedance:
Class 1: UMAF5.0 to UMAF100A or CA
Class 2: UMAF5.0 to UMAF51A or CA
Class 3: UMAF5.0 to UMAF24A or CA
Class 4: UMAF5.0 to UMAF12A or CA
Secondary lightning protection per IEC61000-4-5 with
12 Ohms source impedance:
Class 1: UMAF5.0 to UMAF30A or CA
Class 2: UMAF5.0 to UMAF16A or CA
Virtually zero inductive parasitics with minimal Ldi/dt
voltage overshoots for fast-rise-time transients
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
Peak Pulse Power dissipation at 25
C: 500 watts at
10/1000 s (also see Fig 1, 2, and 3)
Impulse repetition rate (duty factor): 0.01%
t
clamping
(0 volts to
V
(BR)
min.): < 100 ps theoretical for
unidirectional and < 5 ns for bidirectional
Operating and Storage temperature: -55
C to +150
C
Thermal resistance: 50
C/W junction to lead, or
115
C/W junction to ambient when mounted on FR4
PC board (1oz Cu) with recommended 5 mm
2
pads
(see last page)
Steady-State Power: 2.5 watts at T
L
= 25
o
C, or 1.08
watts at T
A
= 25
C when mounted on FR4 PC board
with recommended 5 mm
2
footprint pads
Forward Surge Current at 25C: 40 amps peak, 8.3
ms half-sine wave. Maximum voltage of 3.50 V
(unidirectional only)
FRP substrate material and epoxy under-fill package
meeting UL94V-0
Terminals Tin plated (solderable per MIL-STD-750,
Method 2026)
Body marked with part number without UMA prefix
(e.g. F05, F15A, F33A, F58, F150CA, etc.)
Cathode designated with band (no band on
bidirectional)
Weight: 0.020 grams (approx)
Tape & Reel packaging per EIA-481-2 with 12 mm
tape and 3000 units/reel (7 inch) or 10,000 units/reel
(13 inch)
See package dimensions on last page
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright
2002
5-08-2003 REV 0
WWW.
Microsemi
.
COM
UMAF5.0A thru UMAF170CA
U
LTRA
M
ITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
S C O T T S D A L E
D I V I S I O N
UMAF5.0A thru
UMAF170CA
E
NVIRONMENTALLY
L
EAD
-F
REE
ELECTRICAL CHARACTERISTICS @25
o
C
Microsemi
Part NUMBER*
RATED
WORKING
PEAK
STANDOFF
VOLTAGE
V
WM
(V)
BREAKDOWN
VOLTAGE
V
(BR)
MIN
@
I
(BR)
(V)
BREAKDOWN
CURRENT
I
(BR)
(mA)
MAXIMUM
CLAMPING
VOLTAGE
V
C
@ I
PP
(V)
PEAK
PULSE
CURRENT
I
PP
(A)
MAXIMUM
STANDBY
CURRENT
I
D
@ V
WM
(
A)
UMAF5.0A
UMAF6.0A
UMAF6.5A
UMAF7.0A
5.0
6.0
6.5
7.0
6.40
6.67
7.22
7.78
10
10
10
10
9.2
10.3
11.2
12.0
54.3
48.5
44.7
41.7
800
800
500
200
UMAF7.5A
UMAF8.0A
UMAF8.5A
UMAF9.0A
7.5
8.0
8.5
9.0
8.33
8.89
9.44
10.0
1
1
1
1
12.9
13.6
14.4
15.4
38.8
36.7
34.7
32.6
100
50
10
5
UMAF10A
UMAF11A
UMAF12A
UMAF13A
10
11
12
13
11.1
12.2
13.3
14.4
1
1
1
1
17.0
18.2
19.9
21.5
29.4
27.4
25.1
23.2
5
5
5
5
UMAF14A
UMAF15A
UMAF16A
UMAF17A
14
15
16
17
15.6
16.7
17.8
18.9
1
1
1
1
23.2
24.4
26.0
27.6
21.5
20.6
19.2
18.1
5
5
5
5
UMAF18A
UMAF20A
UMAF22A
UMAF24A
18
20
22
24
20.0
22.2
24.4
26.7
1
1
1
1
29.2
32.4
35.5
38.9
17.2
15.4
14.1
12.8
5
5
5
5
UMAF26A
UMAF28A
UMAF30A
UMAF33A
26
28
30
33
28.9
31.1
33.3
36.7
1
1
1
1
42.1
45.4
48.4
53.3
11.9
11.0
10.3
9.4
5
5
5
5
UMAF36A
UMAF40A
UMAF43A
UMAF45A
36
40
43
45
40.0
44.4
47.8
50.0
1
1
1
1
58.1
64.5
69.4
72.7
8.6
7.8
7.2
6.9
5
5
5
5
UMAF48A
UMAF51A
UMAF54A
UMAF58A
48
51
54
58
53.3
56.7
60.0
64.4
1
1
1
1
77.4
82.4
87.1
93.6
6.5
6.1
5.7
5.3
5
5
5
5
UMAF60A
UMAF64A
UMAF70A
UMAF75A
60
64
70
75
66.7
71.1
77.8
83.3
1
1
1
1
96.8
103.0
113
121
5.2
4.9
4.4
4.1
5
5
5
5
UMAF78A
UMAF85A
UMAF90A
UMAF100A
78
85
90
100
86.7
94.4
100
111
1
1
1
1
126
137
146
162
4.0
3.6
3.4
3.1
5
5
5
5
UMAF110A
UMAF120A
UMAF130A
UMAF150A
110
120
130
150
122
133
144
167
1
1
1
1
177
193
209
243
2.8
2.6
2.4
2.1
5
5
5
5
UMAF160A
UMAF170A
160
170
178
189
1
1
259
275
1.9
1.8
5
5
* Order with "CA" suffix for bi-directional types. Capacitance will be that shown in figure 4.
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