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1N5555 1N5557
SCOTTSDALE DIVISION
1N5556 1N5558
1500 WATT UNIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR
DESCRIPTION This Transient Voltage Suppressor (TVS) series for 1N5555 thru 1N5558 are JEDEC registered selections for unidirectional devices. All have the same high Peak Pulse Power rating of 1500 W with extremely fast response times. They are also available in military qualified selections as described in the Features section herein. They are most often used for protecting against transients from inductive switching environments, induced RF effects, or induced secondary lightning effects as found in lower surge levels of IEC61000-4-5. They are also very successful in protecting airborne avionics and electrical systems. Since their response time is virtually instantaneous, they can also protect from ESD and EFT per IEC61000-4-2 and IEC61000-4-4.
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
APPEARANCE
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DO-13 (DO-202AA)
FEATURES
* * * * Unidirectional TVS series for thru-hole mounting Working voltage (VWM) range 30.5 V to 175 V Hermetic sealed DO-13 metal package JAN/TX/TXV military qualifications also available per MIL-PRF-19500/500 by adding the JAN, JANTX, or JANTXV prefix, e.g. JANTXV1N5555, etc. * For bidirectional TVS in the same DO-13 package, see separate data sheet for the 1N6036 - 1N6072A series (also military qualified) * Surface mount equivalent packages also available from the SMCJ5.0 - SMCJ170CA or SMCG5.0 - SMCG170C series in separate data sheet (consult factory for other surface mount options) * Plastic axial-leaded equivalents available from the 1N6267 - 1N6303A series in separate data sheet
APPLICATIONS / BENEFITS
* Suppresses transients up to 1500 watts @ 10/1000 s (see Figure 1) * Clamps transient in less than 100 pico seconds * Protection from switching transients and induced RF * Protection from ESD and EFT per IEC 61000-4-2 and IEC 61000-4-4 * Secondary lightning protection per IEC61000-4-5 with 42 Ohms source impedance: Class 1: 1N5555 to 1N5558 Class 2 & 3: 1N5555 to 1N5557 Class 4: 1N5555 to 1N5556 * Secondary lightning protection per IEC61000-4-5 with 12 Ohms source impedance: Class 1: 1N5555 to 1N5557 Class 2: 1N5555 to 1N5557 * Inherently radiation hard as described in Microsemi MicroNote 050
MAXIMUM RATINGS
* 1500 Watts for 10/1000 s with repetition rate of 0.01% or o less* at lead temperature (TL) 25 C (see Figs 1, 2, & 4) * Operating & Storage Temperatures: -65o to +175oC * THERMAL RESISTANCE: 50oC/W junction to lead at 0.375 inches (10 mm) from body or 110oC/W junction to ambient when mounted on FR4 PC board with 4 mm2 copper pads (1oz) and track width 1 mm, length 25 mm * DC Power Dissipation*: 1 Watt at TL = +25oC 3/8" (10 mm) from body (see derating in Fig 3) * Forward surge current: 200 Amps for 8.3ms half-sine wave at TA = +25oC * Solder Temperatures: 260 o C for 10 s (maximum)
MECHANICAL AND PACKAGING
* CASE: DO-13 (DO-202AA), welded, hermetically sealed metal and glass * FINISH: All external metal surfaces are Tin-Lead plated and solderable per MIL-STD-750 method 2026 * POLARITY: Cathode connected to case and polarity indicated by diode symbol * MARKING: Part number and polarity diode symbol * WEIGHT: 1.4 grams. (Approx) * TAPE & REEL option: Standard per EIA-296 (add "TR" suffix to part number) * See package dimension on last page
1N5555 thru 1N5558 5555
*
TVS devices are not typically used for dc power dissipation and are instead operated at or less than their rated standoff voltage (VWM) except for transients that briefly drive the device into avalanche breakdown (VBR to VC region).
Copyright 2002 11-06-2003 REV A
Microsemi
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N5555 1N5557
SCOTTSDALE DIVISION
1N5556 1N5558
1500 WATT UNIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR
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ELECTRICAL CHARACTERISTICS
JEDEC Type Number Maximum Temperature Coefficient of V(BR) V(BR) (Notes @ 1.0 mA 1&2) o V mA V V V A %/ C A 1N5555 33.0 1.0 30.5 21.5 5 47.5 32 +.093 1N5556 43.7 1.0 40.3 28.5 5 63.5 24 +.094 1N5557 54.0 1.0 49.3 34.5 5 78.5 19 +.096 1N5558 191.0 1.0 175.0 124.0 5 265.0 5.7 +.100 NOTE 1: A TVS is normally selected according to the rated "Standoff Voltage" VWM that should be equal to or greater than the dc or continuous peak operating voltage level. NOTE 2: Also available in military qualified types with a JAN, JANTX, or JANTXV prefix. Minimum Breakdown Voltage V(BR) @ I(BR) Test Current I(BR) Rated Standoff Voltage VWM Maximum (RMS) Reverse Voltage VWM(RMS) Maximum Standby Current ID @ VWM Maximum Peak Reverse Voltage VC @ IPP Maximum Peak Pulse Current IPP
Symbol
VWM V(BR)
VC
SYMBOLS & DEFINITIONS Definition
Standoff Voltage: Applied Reverse Voltage to assure a nonconductive condition. (See Note 1 above.) Breakdown Voltage: This is the Breakdown Voltage the device will exhibit at 25oC Maximum Clamping Voltage: The maximum peak voltage appearing across the TVS when subjected to the peak pulse current in a one millisecond time interval. The peak pulse voltage is the combination of voltage rise due to both the series resistance and thermal rise and positive temperature coefficient (V(BR)) Peak Pulse Current: The peak current during the impulse (See Figure 2) Peak Pulse Power: The pulse power as determined by the product of VC and IPP Standby Current: The current at the standoff voltage (VWM) Breakdown Current: The current used for measuring Breakdown Voltage (V(BR))
IPP PPP ID I(BR)
GRAPHS
100
Peak Pulse Power (PPP) in kW
Exponential wave-form (See FIG. 2) 10
Pulse current (IP) in percent of IPP
Peak Value
IPP
Square-wave pulse 1.0
Pulse time duration (tp) is defined as that point where IP decays to 50% of peak value (IPP).
1N5555 thru 1N5558 5555
0.1Kw 100ns 1s 10s 100s 1ms 10ms
Pulse Time (tp ) FIG. 1 - Non-repetitive peak pulse power rating curve NOTE: Peak power defined as peak voltage times peak current
time (t) in milliseconds FIG. 2 Pulse wave form for exponential surge
Copyright 2002 11-06-2003 REV A
Microsemi
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N5555 1N5557
SCOTTSDALE DIVISION
1N5556 1N5558
1500 WATT UNIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR
Steady-state power dissipation (watts)
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TL - lead Temperature oC
FIG. 3 Steady-state power derating curve
Peak Pulse Power (PPP) or current I (surge) o in percent of 25 C rating
TA Ambient Temperature C FIG. 4 Derating Curve
o
PACKAGE DIMENSIONS
DIM A B C D E F G DO-13 (DO-202AA)
INCHES MIN MAX -.235 .315 .350 1.250 -1.250 --.210 -.090 .026 .035
MILLIMETERS MIN MAX -5.97 8.001 8.890 31.750 -31.750 --5.334 -2.286 .660 .889
1N5555 thru 1N5558 5555
Copyright 2002 11-06-2003 REV A
Microsemi
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3

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