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-225 HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR FEATURES • 10KA Surge Capability @ 8 x 20 µsec waveform (per IEC- 61000-4-5) 0.69+-0.035 (18.12+-0.9) • UL 1449 Pending • Peak Power Dissipation 324KW • Bi-directional MAX-225 0.54 Max (12.45 Max) • Excellent clamping capability • Repetition rate (duty cycle): 0.05% 0.885±0.044 (22.47±1.12) • Sharp breakdown voltage • Low incremental surge resistance 0.29 Max (7.35 Max) 0.787 Min (20.0 Min) 0.049±.0019 (1.25±0.05) • Fast response time: typically less than 1.0 µs from 0 Volts to BV 0.934±0.046 (23.722±1.16) • Operation temperature: -40°C to +125°C • Epoxy encapsulated package has Underwriters Dimensions in inches and (Millimeters) Laboratory Flammability Classification 94 V-0 MECHANICAL DATA Terminal: Ag Plated Axial leads, solderable per MIL-STD-750. Method 2026 Mounting Position: Any Weight: 0.408 ± 0.040 ounces (11.300 ± 1.130g) MAXIMUM RATINGS AND CHARACTERISTICS Ratings at 25º C ambient temperature unless otherwise specified. RATING SYMBOL VALUE UNITS Vrwm 202.5 Volt Breakdown Voltage @ IT=1.0mA Vbr 225 ± 5% Volt Clamping Voltage @ 1090A / 10x1000 µsec waveform Vc 297 max Volt Reverse Leakage @ 202.5V IR 20 µ max A Reversed Standoff Voltage 08/14/02 10000 Non-repetitive pulse waveform shown in Fig. 3T A = 25ºC 1 P ppm PEAK PULSE POWER KW MAXPak™ 225 Series Curves 1000 100 1 10 1 0.1 1 10 100 1000 10000 td PULSE WIDTH 1 µsec FIG. 1 PEAK PULSE POWER RATING Fig.2 - Pulse Derating Curve Peak Pulse Power (PPP) or Current (IPP) Derating in Percentage,% 100 87.5 75 62.5 50 37.5 25 12.5 0 0 25 50 75 100 125 150 175 200 TA - Ambient Temperature (°C) 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 1/2/2003