UMA5.0A thru UMA170CA
U
LTRA
M
ITE™ SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
DESCRIPTION
These 500 watt transient voltage suppressors offer capabilities only found in larger
packages. 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
PACKAGE
WWW .
Microsemi
.C
OM
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.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
UltraMite™
FEATURES
•
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•
•
•
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Available as a unidirectional or bidirectional device
(bidirectional with CA suffix)
Fast response time
Suppresses transients up to 500 W @ 10/1000 µs
(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 (approximately 1 mm)
Available on Tape and Reel
Built-in stress relief with similar COE as PC boards
Optional Lead-Free design/finish (UMAF5.0A-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.
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APPLICATIONS / BENEFITS
Protects sensitive components such as IC’s, CMOS,
2
Bipolar, BiCMOS, ECL, DTL, T 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: UMA5.0 to UMA100A or CA
Class 2: UMA5.0 to UMA51A or CA
Class 3: UMA5.0 to UMA24A or CA
Class 4: UMA5.0 to UMA12A or CA
Secondary lightning protection per IEC61000-4-5
with 12 Ohms source impedance:
Class 1: UMA5.0 to UMA30A or CA
Class 2: UMA5.0 to UMA16A or CA
Virtually zero inductive parasitics with minimal Ldi/dt
voltage overshoots for fast-rise-time transients
•
MAXIMUM RATINGS
•
•
•
•
•
Peak Pulse Power dissipation at 25
º
C: 500 watts at
10/1000 µs (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
º
C to +150
º
C
Thermal resistance: 50
º
C/W junction to lead, or
115
º
C/W junction to ambient when mounted on FR4
2
PC board (1oz Cu) with recommended 5 mm pads
(see last page)
Steady-State Power: 2.5 watts at T
L
= 25
o
C, or 1.08
watts at T
A
= 25
º
C when mounted on FR4 PC board
with recommended 5 mm
2
footprint pads
Forward Surge Current at 25ºC: 40 amps peak, 8.3
ms half-sine wave. Maximum voltage of 3.50 V
(unidirectional only)
Solder temperatures: 260
º
C for 10 s (maximum)
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MECHANICAL AND PACKAGING
FRP substrate material and epoxy under-fill package
meeting UL94V-0
Terminals solder plated (solderable per MIL-STD-
750, Method 2026)
Body marked with part number without UMA prefix
(ie. 05, 15A, 33A, 58, 150CA, etc.)
Cathode designated with band (no band on
bidirectional)
Weight: 0.020 grams (approximate)
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
UMA5.0A – UMA170CA
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Copyright
2002
MSCUMA5.0.PDF 10-16-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
UMA5.0A thru UMA170CA
U
LTRA
M
ITE™ SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
ELECTRICAL CHARACTERISTICS @25
o
C
MICROSEMI
PART NUMBER*
RATED
WORKING
PEAK
STANDOFF
VOLTAGE
V
WM
(V)
UMA5.0A
UMA6.0A
UMA6.5A
UMA7.0A
UMA7.5A
UMA8.0A
UMA8.5A
UMA9.0A
UMA10A
UMA11A
UMA12A
UMA13A
UMA14A
UMA15A
UMA16A
UMA17A
UMA18A
UMA20A
UMA22A
UMA24A
UMA26A
UMA28A
UMA30A
UMA33A
UMA36A
UMA40A
UMA43A
UMA45A
UMA48A
UMA51A
UMA54A
UMA58A
UMA60A
UMA64A
UMA70A
UMA75A
UMA78A
UMA85A
UMA90A
UMA100A
UMA110A
UMA120A
UMA130A
UMA150A
UMA160A
UMA170A
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
60
64
70
75
78
85
90
100
110
120
130
150
160
170
BREAKDOWN
VOLTAGE
V
(BR)
MIN
@ I
(BR)
BREAKDOWN
CURRENT
I
(BR)
MAXIMUM
CLAMPING
VOLTAGE
V
C
@ I
PP
PEAK
PULSE
CURRENT
I
PP
MAXIMUM
STANDBY
CURRENT
I
D
@ V
WM
WWW .
Microsemi
.C
OM
(V)
6.40
6.67
7.22
7.78
8.33
8.89
9.44
10.0
11.1
12.2
13.3
14.4
15.6
16.7
17.8
18.9
20.0
22.2
24.4
26.7
28.9
31.1
33.3
36.7
40.0
44.4
47.8
50.0
53.3
56.7
60.0
64.4
66.7
71.1
77.8
83.3
86.7
94.4
100
111
122
133
144
167
178
189
(mA)
10
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(V)
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
17.0
18.2
19.9
21.5
23.2
24.4
26.0
27.6
29.2
32.4
35.5
38.9
42.1
45.4
48.4
53.3
58.1
64.5
69.4
72.7
77.4
82.4
87.1
93.6
96.8
103.0
113
121
126
137
146
162
177
193
209
243
259
275
(A)
54.3
48.5
44.7
41.7
38.8
36.7
34.7
32.6
29.4
27.4
25.1
23.2
21.5
20.6
19.2
18.1
17.2
15.4
14.1
12.8
11.9
11.0
10.3
9.4
8.6
7.8
7.2
6.9
6.5
6.1
5.7
5.3
5.2
4.9
4.4
4.1
4.0
3.6
3.4
3.1
2.8
2.6
2.4
2.1
1.9
1.8
(µA)
800
800
500
200
100
50
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
UMA5.0A – UMA170CA
*
Order with “CA” suffix for bi-directional types. Capacitance will be ½ that shown in figure 4.
Copyright
2002
MSCUMA5.0.PDF 10-16-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
UMA5.0A thru UMA170CA
U
LTRA
M
ITE™ SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
Symbol
V
WM
P
PP
V
(BR)
I
D
SYMBOLS & DEFINITIONS
Definition
Symbol
Working Peak (Standoff) Voltage
Peak Pulse Power
Breakdown Voltage
Standby Current
I
PP
V
C
WWW .
Microsemi
.C
OM
Definition
I
(BR)
Peak Pulse Current
Clamping Voltage
Breakdown Current for V
(BR)
GRAPHS
tw Microseconds
Figure 1 – Peak Pulse Power (P
PP
) – Kilowatts
versus
Pulse Width (t
W
) - Microseconds
Test wave form
parameterxs
tr = 10µsec.
tp = 1000µsec.
Peak Pulse Power (Ppp) or Current
o
(I
PP
) in percentage of 25 C Rating
C – Capacitance - Picofarads
UMA5.0A – UMA170CA
FIGURE 2
Pulse Waveform for Exponential Surge
Copyright
2002
MSCUMA5.0.PDF 10-16-2003 REV B
Lead Temperature C
o
FIGURE 3
Derating Curve
V
(BR)
- Breakdown Voltage – Volts
FIGURE 4
Typical Capacitance vs. Breakdown Voltage
Page 3
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
UMA5.0A thru UMA170CA
U
LTRA
M
ITE™ SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
PACKAGE DIMENSIONS & PAD LAYOUT
PAD LAYOUT
INCHES
MIN
MAX
.173
.181
.083
.091
.033
.045
.033
.045
.002
.002
.020
.020
MM
MIN
4.40
2.10
.85
.85
.05
.50
MAX
4.60
2.30
1.15
1.15
.05
.50
WWW .
Microsemi
.C
OM
DIM
A
B
C
D
E
F
A
B
C
INCHES
.245
.075
.103
mm
6.22
1.90
2.62
UMA5.0A – UMA170CA
Copyright
2002
MSCUMA5.0.PDF 10-16-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 4
