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UMA5.0A thru UMA170CA
ULTRAMITETM 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
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BA package outlines except with a much lower profile height. Its robust configuration in a "2010" style MELF package prevents damage to extendedlead terminals and virtually eliminates inductive parasitics from fast rise-time transients with very short internal/external conduction paths. They are 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
UltraMiteTM
FEATURES
* * * * * * * * * * 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 (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-PRF19500 for JAN, JANTX, JANTXV, and JANS are available by adding MQ, MX, MV, or MSP prefixes respectively to part numbers. * * * *
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
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MAXIMUM RATINGS
* * * * * 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% tclamping (0 volts to V(BR) min.): < 100 ps theoretical for unidirectional and < 5 ns for bidirectional Operating and Storage temperature: -55C to +150C Thermal resistance: 50 C/W junction to lead, or 115C/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 TL = 25oC, or 1.08 watts at TA = 25C when mounted on FR4 PC board with recommended 5 mm2 footprint pads Forward Surge Current at 25C: 40 amps peak, 8.3 ms half-sine wave. Maximum voltage of 3.50 V (unidirectional only) Solder temperatures: 260 C for 10 s (maximum)
MECHANICAL AND PACKAGING
* * * * * * FRP substrate material and epoxy under-fill package meeting UL94V-0 Terminals solder plated (solderable per MIL-STD750, 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
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UMA5.0A thru UMA170CA
ULTRAMITETM SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
ELECTRICAL CHARACTERISTICS @25oC
MICROSEMI PART NUMBER* RATED WORKING PEAK STANDOFF VOLTAGE VWM (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 VC @ IPP PEAK PULSE CURRENT IPP MAXIMUM STANDBY CURRENT ID @ VWM
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(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
(A) 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 1/2 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
ULTRAMITETM SURFACE MOUNT 500 Watt
SCOTTSDALE DIVISION
Transient Voltage Suppressor 5.0 to 170 V
Symbol
VWM PPP V(BR) ID
Definition
SYMBOLS & DEFINITIONS Symbol
IPP
VC
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Definition
Working Peak (Standoff) Voltage Peak Pulse Power Breakdown Voltage Standby Current
I(BR)
Peak Pulse Current Clamping Voltage Breakdown Current for V(BR)
GRAPHS
tw Microseconds Figure 1 - Peak Pulse Power (PPP) - Kilowatts versus Pulse Width (tW) - Microseconds
Test wave form parameterxs tr = 10sec. tp = 1000sec.
Peak Pulse Power (Ppp) or Current o (IPP) 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
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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
ULTRAMITETM 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
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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

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