Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N6461US thru 1N6468US
1N6461US
DESCRIPTION APPEARANCE
This surface mount series of industry recognized voidless-hermetically-sealed
Unidirectional T ransient Voltage Suppressor (TVS) designs is militar y qualified to MIL-
PRF-19500/551 and are ideal for high-reliabi lity applications where a failure cannot be
tolerated. They provid e a Working Peak “Standoff” Voltage selection from 5.0 to 51.6
Volts with 500 W ratings. T hey are very robust in hard-glass construction and a lso use
an internal metallurgical bond identified as Category I for high reliability applications.
The 500 W series is military qualified to MIL-PRF-19500/551. These devices are also
available in axial-leaded packages for thru-hole mounting by deleting the “US” suffix
(see separate data sheet for 1N6461 thru 1N6468). Microsemi also offers numerous
other TVS products to meet higher a nd lower peak pulse po wer and voltage ratings in
both through-hole and surfac e-mount packages.
Package “E”
(or “ D-5B”)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLIC ATIONS / BENEFI TS
• High surge current and peak pulse power provides
transient voltage protection for sensitive circuits
• Triple-layer passivation
• Internal “Category I” metallurgical bonds
• Voidless hermetically s ealed glass package
• JAN/TX/TXV military qualifications available per MIL-
PRF-19500/551 by adding JAN, JANTX, or JANTXV
prefix
• Further options for screening in accordance with MIL-
PRF-19500 for JANS by using a “SP” prefi x, e.g.
SP6462, SP6468, etc.
• Axial-leaded e quivalents are also available in a
square-end-cap MELF conf iguration (see separate
data sheet for 1N6461 thru 1N6168)
• Military and other high reliability transient protection
• Extremely robust construction
• Working Peak “Standoff” Voltage (VWM) from 5.0 to
51.6 V
• Available as 500 W Peak Puls e Power (PPP)
• ESD and EFT protection per IEC61 000-4-2 and
IEC61000-4-4 respectively
• Secondary lightning protection per select levels in
IEC61000-4-5
• Square-end-cap terminals for easy placement
• Nonsensitive to ESD per MIL-STD-750 Method
1020
• Inherently radiation hard as described in Microsemi
MicroNote 050
MAXIMUM RAT ING S MECHANICAL AND PACKAGING
• Operating & Storage Temperature: -55oC to +175oC
• Peak Pulse Power at 25oC: 500 Watts @ 10/1000 µs
(also see Figures 1,2 and 4)
• Impulse repetition rate (duty factor): 0.01%
• Forward Surge Current: 80 Amps@ 8.33 ms one-half
sine wave
• Forward Voltage: 1.5 V @ 1 Amp dc and 4.8 V at 100
Amps (pulsed)
• Steady-State Power: 2.5 Watts @ TA = 25oC (see
note below and Figure 4)
• Thermal Resistance Junction to End Cap: 20 oC/W
• Solder Temperatures: 260oC for 10 s (maximum)
• CASE: Hermetically sealed voidless hard glass
with Tungsten slugs
• TERMINATIONS: End caps are Copper with
Tin/Lead (Sn/Pb) finish. Note; Previous inventory
had solid silver end caps with Tin/Lead (Sn/Pb) finish.
• MARKING: None
• POLARITY: Cathode band
• Tape & Reel option: Standard per EIA-481-B
• Weight: 539 mg
• See package dimensions on l ast page
NOTE: Steady-state power ratings with reference to ambient are for PC boards where thermal resistance from
1N6468US
mounting point to ambient is sufficiently cont rolled where TJ(MAX) is not exceeded.
Microsemi
Scottsdale Division Page 1
Copyright © 2007
10-03-2007 REV C 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503