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UPTB28

Microsemi Corporation
Part Number UPTB28
Manufacturer Microsemi Corporation
Description SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSORS
Published Apr 16, 2005
Detailed Description 580 Pleasant St. Watertown, MA 02472 PH: (617) 926-0404 FAX: (617) 924-1235 UPT5-UPT48 UPTB5-UPTB48 Features • • • • •...
Datasheet PDF File UPTB28 PDF File

UPTB28
UPTB28

Overview
580 Pleasant St.
Watertown, MA 02472 PH: (617) 926-0404 FAX: (617) 924-1235 UPT5-UPT48 UPTB5-UPTB48 Features • • • • • • Powermite Package, 5 to 48 V Peak Pulse Power 1000 W for 8x20 Micro-second Pulse Clamping Time in Pico-seconds Integral Heat Sink / Locking Tabs Full Metallic Bottom Eliminates Flux Entrapment Bi-directional Version Available SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSORS Description Microsemi’s new Powermite UPT series transient voltage suppressors feature oxide passivated zener type chips, with high-temperature solder bonds to achieve high surge capability, and negligible electrical degradation under repeated surge conditions.
In addition to its size advantages, Powermite package includes a full metallic bottom which eliminates the possibility of solder flux entrapment at assembly, and a unique locking tab that acts as an integral heatsink.
Innovative design makes this device fully compatible for use with automatic insertion equipment.
Absolute Maximum Ratings at 25°C Stand-Off Voltage .
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Peak Pulse Power ( 8 x 20 micro-second pulse ) Peak Pulse Power ( 1 milli-second pulse ) .
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Peak Pulse Current .
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Breakdown Voltage .
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Power( Continuous ).
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5 to 48 VOLTS ( See Characteristics Table ) .
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1000 WATTS .
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( See Figure 1 ) .
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150 WATTS .
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( See Figure 2 ) .
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See Characteristics Table .
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See Characteristics Table .
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2.
5 WATTS Electrical Characteristics at 25°C DEVICE TYPE Unidirectional Bi-directional Stand-Off Voltage VR (V) 5 8 10 12 15 17 24 28 33 48 Minimum Breakdown Voltage BV(min) @ 1 mA (V) 6.
0 9.
0 11.
0 13.
8 16.
7 19.
0 28.
4 31.
0 36.
8 54.
0 Maximum Leakage Current IR @ VR (µ A) 50 2 2 1 1 1 1 1 1 1 Maximum Peak Cu...


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