MDE Semiconductor, Inc. 78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel : 760-564-8656 • Fax : 760-564-2414 1-800-831-4881 Email: [email protected] Web: www.mdesemiconductor.com MAXPak ™ Series MAX-470 HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR FEATURES • UL1449 Recognition • 4KA Surge Capability @ 8 x 20 µsec waveform (per IEC- 61000-4-5) • Peak Power Dissipation 288KW • Bi-directional • Excellent clamping capability MAX-470 • Repetition rate (duty cycle): 0.05% • Sharp breakdown voltage • Low incremental surge resistance • Fast response time: typically less than 1.0 µs from 0 Volts to BV • Operation temperature: -40°C to +125°C • Epoxy encapsulated package has Underwriters Laboratory Flammability Classification 94 V-0 MECHANICAL DATA Terminal: Ag Plated Axial leads, solderable per MIL-STD-750. Method 2026 Mounting Position: Any Weight: 0.328 ± 0.033 ounces (9.300 ± 0.930 g) MAXIMUM RATINGS AND CHARACTERISTICS Ratings at 25º C ambient temperature unless otherwise specified. RATING SYMBOL VALUE UNITS Vrwm 423 Volt Breakdown Voltage @ IT=1.0mA Vbr 470 ± 5% Volt Clamping Voltage @ 460A / 10x1000 µsec waveform Vc 625 max Volt Reverse Leakage @ 423V IR 20 µ max A Reversed Standoff Voltage 08/14/02 MAXPak™ Series Curves IPPM - Peak Pulse Current,% IRSM 150 TJ = 25°C Pulse Width(td)is defined as the point where the peak current decays to 50% of IPPM tr = 10µsec. Peak Value IPPM 100 Half Value- IPPM 2 10/1000µsec.Waveform as defined by R.E.A. 50 td 0 0 1.0 2.0 3.0 3.0 4.0 4.0 t - Time(ms) Fig.3 - Pulse Waveform 10/21/2002