1.5KE18A STMicroelectronics, 1.5KE18A Datasheet - Page 4

• Manufacturer Part Number: 1.5KE18A
• Description: TRANSIL 1500W 18V UNIDIR DO-201
• Manufacturer: STMicroelectronics
• Series: TRANSIL™r

Specifications of 1.5KE18A

• Voltage - Reverse Standoff (typ): 15.3V
• Voltage - Breakdown: 17.6V
• Power (watts): 1500W
• Polarization: Unidirectional
• Mounting Type: Through Hole
• Package / Case: DO-201AA, DO-27, Axial
• Polarity: Unidirectional
• Clamping Voltage: 32.5 V
• Operating Voltage: 15.3 V
• Breakdown Voltage: 17.1 V
• Termination Style: Through Hole
• Peak Surge Current: 1 mA
• Peak Pulse Power Dissipation: 1500 W
• Capacitance: 4300 pF
• Maximum Operating Temperature: + 175 C
• Minimum Operating Temperature: - 65 C
• Dimensions: 0.189 in Dia. x 5.3 (Max) mm W x 0.374 in L x 5.3 (Max) mm H
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Note : The curves of the figure 3 are specified for a junction temperature of 25°C before surge.
The given results may be extrapolated for other junction temperatures by using the following formula :
For intermediate voltages, extrapolate the given results.
V
BR
= T* (T
Fig. 2 : Peak pulse power versus exponential pulse duration.
Fig. 3 :
amb
-25) * V
Clamping voltage versus peak pulse current.
Exponential waveform: t
BR
(25°C).
t
t
p
p
p
= 20 s________
= 1 ms——————-
= 10 ms ...............