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1N5907 and 1N5908 1500 WATT LOW VOLTAGE TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
DESCRIPTION This pair of unidirectional low voltage Transient Voltage Suppressor (TVS) devices for the 1N5907 and 1N5908 JEDEC registrations with different packages have the same high Peak Pulse Power rating of 1500 W with extremely fast response times. The 1N5907 is available in a military qualified version 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 surge levels of IEC61000-4-5 described herein. They are also very successful in protecting airborne avionics and electrical systems when low voltage is required. Since their response time is virtually instantaneous, they can also protect from ESD and EFT per IEC61000-4-2 and IEC61000-4-4. Both hermetic seal and molded types are available.
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
APPEARANCE
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DO-13 (DO-202AA)
CASE 1
FEATURES
* Unidirectional TVS series for thru-hole mounting * Suppresses transients up to 1500 watts @ 10/1000 s (Figure 1) in less than 100 pico seconds * Low working voltage (VWM) of 5 V * Hermetic sealed DO-13 metal package for 1N5907 and plastic "Case 1" for 1N5908 * JAN/TX/TXV military qualification available for 1N5907 per MILPRF-19500/500 by adding JAN, JANTX, or JANTXV prefix, e.g. JANTXV1N5907 * Surface mount equivalent packages also available as SMCJ5.0 or SMCG5.0 in separate data sheet (consult factory for other surface mount options)
APPLICATIONS / BENEFITS
* Protection from switching transients and induced RF * Protects TTL, ECL, DTL, MOS, MSI, and other integrated circuits requiring 5.0 V or lower power supplies * 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 thru 4 * Secondary lightning protection per IEC61000-4-5 with 12 Ohms source impedance: Class 1 thru 4 * Secondary lightning protection per IEC61000-4-5 with 2 Ohms source impedance: Class 2 & 3 * 1N5907 Inherently radiation hard as described in
Microsemi MicroNote 050
MAXIMUM RATINGS
* * 1500 Watts for 10/1000 s at lead temperature (TL) 25 C (See Figs. 1, 2, and 4) with repetition rate of 0.01% or less* Operating & Storage Temperatures: -65o to +175oC for 1N5907 and -65o to +150oC for 1N5908 THERMAL RESISTANCE (junction to lead): 50oC/W for 1N5907 or 22 oC/W for 1N5908 at 0.375 inches (10 mm) from body THERMAL RESISTANCE (junction to ambient): 110 oC/W for 1N5907, or 82 oC/W for 1N5908 when mounted on FR4 PC board with 4 mm2 copper pads (1 oz) and track width 1 mm, length 25 mm DC Power Dissipation* (1N5907): 1 Watt at TL <125oC 3/8" (10 mm) from body, or 1 Watt at TA +65oC when mounted on FR4 PC board as described for thermal resistance junction to ambient DC Power Dissipation* (1N5908): 5 Watts at TL <+40oC 3/8" (10 mm) from body, or 1.52 Watts at TA = +25oC when mounted on FR4 PC board as described for thermal resistance junction to ambient Forward surge current: 200 A for 8.3ms half-sine wave at TA = +25oC Solder Temperatures: 260 o C for 10 s (maximum)
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MECHANICAL AND PACKAGING
* CASE (1N5907): DO-13 (DO-202AA) welded hermetically sealed metal and glass * Case (1N5908): "Case 1" Void Free transfer molded thermosetting epoxy body meeting UL94V-0 * FINISH: External metal surfaces are Tin-Lead (SnPb) plated and solderable per MIL-STD-750 method 2026 * POLARITY: Polarity indicated by diode symbol or cathode band (cathode connected to case for 1N5907) * MARKING: Part number and polarity 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
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1N5907 thru 1N5908
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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
1N5907 and 1N5908 1500 WATT LOW VOLTAGE TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
ELECTRICAL CHARACTERISTICS @ 25oC
JEDEC Type No. Reverse Standoff Voltage VWM
(NOTE 1)
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Minimum Breakdown Voltage V(BR) @ 1 mA
Maximum Standby Current ID @ VWM
Maximum Clamping Voltage VC @ IPP1 (FIG. 3)
Peak Pulse Current IPP1 (FIG. 3)
Maximum Clamping Voltage VC @ IPP2 (FIG. 3)
Peak Pulse Current IPP2 (FIG. 3)
Maximum Clamping Voltage VC @ IPP3 (FIG. 3)
Peak Pulse Current IPP3 (FIG. 3) Amps 120 120
Volts Volts Volts Volts Volts Amps Amps A 1N5907* 5.0 6.0 300 7.6 30 8.0 60 8.5 1N5908 5.0 6.0 300 7.6 30 8.0 60 8.5 * Also available in military qualified types with a JAN, JANTX, or JANTXV prefix per MIL-PRF-19500/500. NOTE 1: A TVS is normally selected according to the reverse "Standoff Voltage" VWM which should be equal to or greater than the dc or continuous peak operating voltge level.
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
1N5907 thru 1N5908
FIGURE 1 PEAK PULSE POWER VS. PULSE TIME
FIGURE 2 DERATING CURVE
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
1N5907 and 1N5908 1500 WATT LOW VOLTAGE TRANSIENT VOLTAGE SUPPRESSOR
SCOTTSDALE DIVISION
WWW . Microsemi .C OM
Test wave form parameters tr = 10 s tp = 1000 s
FIGURE 3 PULSE WAVEFORM
FIGURE 4 TYPICAL CLAMPING VOLTAGE (VC) VS. PEAK PULSE CURRENT (IPP)
PACKAGE DIMENSIONS
1N5907 thru 1N5908 5907
All dimensions in INCH mm
DO-13 (DO-202AA)
All dimensions in mm
and inches
CASE 1
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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