Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
Suppressors
SCOTTSDALE DIVISION
1N6469US thru 1N6476US
WWW.Microsemi .COM 1N6461 – 1N6468
1N6469 – 1N6476
DESCRIPTION APPEARANCE
This surface mount series of industry recognized voidless-hermetically-sealed
Unidirectional Transient Voltage Suppressor (TVS) designs is military qualified to MIL-
PRF-19500/552 and are ideal for high-reliability applications where a failure cannot be
tolerated. They provide a Working Peak “Standoff” Voltage selection from 5.0 to 51.6
Volts with 1500 W ratings. They are very robust in hard-glass construction and also
use an internal metallurgical bond identified as Category I for high reliability
applications. The 1500 W series is military qualified to MIL-PRF-19500/552. These
devices are also available in axial-leaded packages for thru-hole mounting by deleting
the “US” suffix (see separate data sheet for 1N6469 thru 1N6476A). Microsemi also
offers numerous other TVS products to meet higher and lower peak pulse power and
voltage ratings in both through-hole and surface-mount packages.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• High surge current and peak pulse power provides
transient voltage protection for sensitive circuits
• Triple-layer passivation
• Internal “Category I” metallurgical bonds
• Voidless hermetically sealed glass package
• JAN/TX/TXV military qualifications available per MIL-
PRF-19500/552 by adding JAN, JANTX, or JANTXV
prefix
• Further options for screening in accordance with MIL-
PRF-19500 for JANS by using a “MSP” prefix, e.g.
MSP6469, MSP6476, etc.
• Axial-leaded equivalents are also available (see
separate data sheet for 1N6469 thru 1N6476)
• Military and other high reliability transient protection
• Extremely robust construction
• Working Peak “Standoff” Voltage (VWM) from 5.0 to
51.6 V
• Available as 1500 W Peak Pulse Power (PPP)
• ESD and EFT protection per IEC61000-4-2 and
IEC61000-4-4 respectively
• Secondary lightning protection per select levels in
IEC61000-4-5
• Square-end-cap terminals for easy mounting
• Nonsensitive to ESD per MIL-STD-750 Method
1020
• Inherently radiation hard as described in Microsemi
MicroNote 050
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Operating & Storage Temperature: -55oC to +175oC
• Peak Pulse Power at 25oC: 1500 Watts @ 10/1000 µs
(also see Figures 1,2 and 4)
• Impulse repetition rate (duty factor): 0.01%
• Forward Surge Current: 130 Amps@ 8.33 ms one-
half sine wave
• Forward Voltage: 1.5 V @ 4 Amps dc and 4.8 V at
100 Amps (pulsed)
• Steady-State Power: 3.0 W @ TA = 25oC (see note
below and Figure 4)
• Thermal Resistance Junction to End Cap: 20.0 oC/W
• Solder Temperatures: 260oC for 10 s (maximum)
• CASE: Hermetically sealed voidless hard glass
with Tungsten slugs
• TERMINATIONS: Axial-leads are Tin/Lead (Sn/Pb)
over copper
• MARKING: Body painted and part number, etc.
• POLARITY: Cathode band
• Tape & Reel option: Standard per EIA-481-B
• Weight: 1100 mg
• See package dimensions on last page
NOTE: Steady-state power ratings with reference to ambient are for PC boards where thermal resistance from
mounting point to ambient is sufficiently controlled where TJ(MAX) is not exceeded.
Package “G”
(or “D-5C”)
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2004
11-01-2004 REV A
Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
Suppressors
SCOTTSDALE DIVISION
1N6469US thru 1N6476US
WWW.Microsemi .COM 1N6461 – 1N6468
1N6469 – 1N6476
ELECTRICAL CHARACTERISTICS
TYPE
BREAK
DOWN
VOLTAGE
V(BR)
MIN.
BREAKDOWN
CURRENT
I (BR)
WORKING
PEAK
VOLTAGE
VWM
MAX
LEAKAGE
CURRENT
ID
MAXIMUM
CLAMPING
VOLTAGE
VC
@ 10/1000 µs
MAXIMUM
PEAK PULSE
CURRENT
IPP
@8/20 µs @10/1000 µs
MAXIMUM
TEMP.
COEF. OF
V(BR)
Volts mAdc Vdc µAdc V(pk) A(pk) A(pk) %/oC
1N6469US 5.6 50 5 500 9.0 945 167 -.03, +0.04
1N6470US 6.5 50 6 100 11.0 775 137 0.06
1N6471US 13.6 10 12 20 22.6 374 66 0.085
1N6472US 16.4 10 15 10 26.5 322 57 0.085
1N6473US 27.0 5 24 5 41.4 207 36.5 .096
1N6474US 33.0 1 30.5 5 47.5 181 32 .098
1N6475US 43.7 1 40.3 5 63.5 135 24 .101
1N6476US 54.0 1 51.6 5 78.5 107 19 .103
SYMBOLS & DEFINITIONS
Symbol Definition
VBR Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current.
VWM Working Peak Voltage: The maximum peak voltage that can be applied over the operating temperature range.
This is also referred to as Standoff Voltage.
ID Maximum Standoff Current: The maximum current that will flow at the specified voltage and temperature.
VC Maximum clamping voltage at specified IPP (Peak Pulse Current) at the specified pulse conditions.
PPP Peak Pulse Power: The peak power dissipation resulting from the peak impulse current IPP.
GRAPHS
Pulse current (IP) in percent of IPP
Peak Value
IPP
Pulse time duration (tp) is
defined as that point where
IP decays to 50% of peak
value (IPP).
time (t) in milliseconds
FIG. 1 – Non-repetive peak pulse power rating curve FIG. 2 Pulse wave form for exponential surge
NOTE: Peak power defined as peak voltage times peak current for 10/1000 µs
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2004
11-01-2004 REV A
Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
Suppressors
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2004
11-01-2004 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N6469US thru 1N6476US
1N6461 – 1N6468
1N6469 – 1N6476
FIGURE 3 T – Temperature – oC
Peak Pulse Power (Ppp), Current (Ipp),
and DC Power in Percent of 25oC Ratin
g
8/20 µs CURRENT IMPULSE WAVEFORM
FIGURE 4
DERATING CURVE
PACKAGE DIMENSIONS Inches [mm]
G-MELF-PKG (D-5C)
shown in the pad layout.
Note: If mounting requires adhesive separate from the solder,
an additional 0.090 inch diameter contact may be placed in the
center between the pads as an optional spot for cement as
