SAC5.0 thru SAC50, e3
500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
This SAC5.0 thru SAC50 transient voltage suppressor (TVS) series rated at
500 watts provides an added rectifier element as shown in Figure 4 to
achieve low capacitance in applications for higher speed data or signal
lines. The low capacitance rating of 30 pF may be used for protecting
higher frequency applications in inductive switching environments or
electrical systems involving secondary lightning effects per IEC61000-4-5
DO-41
as well as RTCA/DO-160D or ARINC 429 for airborne avionics.
If
bidirectional protection is needed, two SAC devices in anti-parallel
configuration are required as shown in Figure 6. With their very fast
response time, they also provide ESD and EFT protection per IEC61000-4-
2 and IEC61000-4-4 respectively.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
•
Unidirectional low-capacitance TVS series for
flexible thru-hole mounting (for bidirectional see
Figure 6)
•
Suppresses transient up to 500 Watts Peak Pulse
Power @ 10/1000 µs
•
•
Low Capacitance for data-line protection to 10 MHz
•
•
Improved performance in low capacitance of 30 pF
Protection for aircraft fast data rate lines up to Level 3
Waveform 4 and Level 1 Waveform 5A in RTCA/DO-
160D (also see MicroNote 130) & ARINC 429 with bit
rates of 100 kb/s (per ARINC 429, Part 1, par 2.4.1.1)
Economical plastic series in flexible axial-leaded
DO-41 package
•
Optional 100% screening for avionics grade is
available by adding MA prefix to part number for
added 100% temperature cycle -55oC to +125oC
(10X) as well as surge (3X) and 24 hours HTRB
with post test VZ & IR
•
•
ESD and EFT protection per IEC61000-4-2 and
IEC61000-4-4 respectively
Secondary lightning protection per IEC61000-4-5 with
42 Ohms source impedance:
Class 1: SAC5.0 to SAC50
•
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
also available by adding MQ, MX, MV, or MSP
prefixes respectively to part number, e.g.
MXSAC5.0, MVSAC18, etc.
Class 2: SAC5.0 to SAC45
Class 3: SAC5.0 to SAC22
Class 4: SAC5.0 to SAC10
•
Secondary lightning protection per IEC61000-4-5 with
12 Ohms source impedance
Class 1: SAC5.0 to SAC26
•
•
Also available in surface mount with HSMBJ prefix
for part numbers (ex. HSMBJSAC5.0)
RoHS Compliant devices available by adding “e3”
suffix
Class 2: SAC5.0 to SAC15
Class 3: SAC5.0 to SAC7.0
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
CASE: Void Free Transfer Molded Thermosetting Plastic
epoxy meeting UL94V-0
•
•
•
•
Peak Pulse Power Dissipation at 25oC: 500 Watts @
•
•
10/1000 μs with repetition rate of 0.01% or less*
Steady State Power Dissipation* at TL = +75oC: 2.5 Watts
(Lead Length = 3/8”).
TERMINATIONS: Tin-lead or RoHS Compliant annealed
matte-Tin plating readily solderable per MIL-STD-750
method 2026
Clamping Speed (0 volts to V(BR) Min.) less than 5
nanoseconds.
Operating and Storage Temperature: -65oC to +150oC.
•
•
•
•
POLARITY: Cathode indicated by band
MARKING: Part number and cathode band
WEIGHT: 0.7 Grams (Approx.)
See package dimensions on last page
* TVS devices are not typically used for dc power dissipation and are instead operated < VWM (rated standoff voltage) except for transients that briefly
drive the device into avalanche breakdown (VBR to VC region) of the TVS element. Also see Figures 5 and 6 for further protection details in rated peak
pulse power for unidirectional and bidirectional configurations respectively.
Copyright © 2005
Microsemi
Page 1
9-12-2005 REV D
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503