Microsemi
Scottsdale Division Page 1
Copyright © 2007
6-20-2007 REV E
WWW.Microsemi .COM
SAC5.0 thru SAC50, e3
500 WATT LOW CAPACITANCE
TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
SAC5.0 thru SAC50, e3
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
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.
DO-41
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLIC ATIONS / BENEFITS
• Unidirectional low-capacitance TVS series for
flexible thru-hole mounting (for bidirectional see
Figure 6)
• Improved performance in low capacitance of 30 pF
• Economical plastic series in flexibl e a xial-l ea ded
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
• Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, and JANTXV are also
available by adding MQ, MX, or MV prefixes
respectively to part number, e.g. MXSAC5.0,
MVSAC18, etc.
• Also available in surface mount with HSMBJ prefix
for part numbers (ex. HSMBJSAC5.0)
• RoHS Compliant devices avai lable by adding “e3”
suffix
• Suppresses transient up to 500 Watts Peak Pulse
Power @ 10/1000 µs
• Low Capacitance for data-line protection to 10 MHz
• 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)
• ESD and EFT protection per IEC61 000-4-2 and
IEC61000-4-4 respectively
• Secondary ligh tning protection per IEC61000-4-5 with
42 Ohms source impedance:
Class 1: SAC5.0 to SAC50
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
Class 2: SAC5.0 to SAC15
Class 3: SAC5.0 to SAC7.0
MAXIMUM RAT ING S MECHANICAL AND PACKAGING
• 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”).
• Clamping Speed (0 volts to V(BR) Min.) less than 5
nanoseconds.
• Operating and Storage Temperature: -65oC to +150oC.
• CASE: Void Free Transfer Molded Thermosetting Plastic
epoxy meeting UL94V-0
• TERMINATIONS: Tin-lead or RoHS Compliant annealed
matte-Tin plating readily solderable per MIL-STD-750
method 2026
• 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.
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503