Details, datasheet, quote on part number: 5KP18
CompanyVishay Intertechnology
DatasheetDownload 5KP18 datasheet
Cross ref.Similar parts: BZW50-18, 5KP18(R6), BZW50-18
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Features, Applications


Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Glass passivated junction 5000W peak pulse power capability with a 10/1000s waveform, repetition rate (duty cycle): 0.05% Excellent clamping capability Low incremental surge resistance Very fast response time Devices with V(BR) 10V ID are typically less than 1.0A Available in uni-directional polarity only

Case: Molded plastic body over glass passivated junction Terminals: Solder plated axial leads, solderable per MIL-STD-750, Method 2026 High temperature soldering guaranteed: 265C/10 seconds, 0.375" (9.5mm) lead length, 5lbs. (2.3 kg) tension Polarity: The color band denotes the cathode, which is positive with respect to the anode under normal TVS operation Mounting Position: Any Weight: 0.07 oz., 2.1 g Packaging codes/options: 1/750 ea. per Bulk Box 4/800 ea. per 13" Reel (52mm Tape) 23/300 ea. per Ammo Box (52mm Tape)

Parameter Peak pulse power dissipation with a 10/1000s waveform Peak pulse current with a 10/1000s waveform Steady state power dissipation = 75C lead lengths 0.375" (9.5mm)(2) Peak forward surge current, 8.3ms single half sine-wave (3) Instantaneous forward voltage at 100A


Notes: (1) Non-repetitive current pulse, per Fig. 3 and derated above = 25C per Fig. 2. (2) Mounted on copper pad area x 40mm) per Fig. 5. (3) Measured on 8.3ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum

Notes: (1) V(BR) measured after IT applied for 300s IT=square wave pulse or equivalent (2) Surge current waveform per Fig. 3 and derate per Fig. 2 (3) All items and symbols are consistent with ANSI/IEEE C62.35


The 5KP series of high power transient voltage suppressors were designed to be used on the output of switching power supplies. These devices may be used to replace crowbar circuits. Both the 5 and 10 percent voltage tolerances are referenced to the power supply output voltage level. They are able to withstand high levels of peak current while allowing a circuit breaker to trip or a fuse blow before shorting. This will enable the user to reset the breaker or replace the fuse and continue operation. For this type operation, it is recommended that a sufficient mounting surface be used for dissipating the heat generated by the Transient Voltage Suppressor during the transient or over-voltage condition. Transient Voltage Suppressors are Silicon PN Junction devices designed for absorption of high voltage transients associated with power disturbances, switching and induced lighting effects.


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