UMA5.0A thru UMA170CA

Transient Voltage Suppressor 5.0 to 170 V

SCOTTSD A L E DIVISION

DESCRIPTION

PACKAGE

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

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

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 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.

•

Protects sensitive components such as IC’s, CMOS,

Bipolar, BiCMOS, ECL, DTL, T

•

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

MECHANICAL AND PACKAGING

10/1000 µs (also see Fig 1, 2, and 3)

• Impulse repetition rate (duty factor): 0.01%

unidirectional and < 5 ns for bidirectional

115

PC board (1oz Cu) with recommended 5 mm

(see last page)

with recommended 5 mm

• Forward Surge Current at 25ºC: 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 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

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

MSCUMA5.0.PDF 10-16-2003 REV B