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LDTS48 bảng dữ liệu(PDF) 1 Page - Microsemi Corporation |
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LDTS48 bảng dữ liệu(HTML) 1 Page - Microsemi Corporation |
1 / 2 page HEAVY DUTY (LOAD DUMP) TRANSIENT VOLTAGE SUPPRESSOR SCOTTSD A L E DIVISION LDTS14 thru LDTS48A DESCRIPTION APPEARANCE This LDTS series is used in automotive and vehicular applications where further protection may be required for load-dump and field-decay transients. This type of protection is needed when the battery is disconnected while the engine and alternator are still operating. This produces prolonged severe transients requiring additional transient voltage suppressor design considerations beyond those ratings specified for other conventional TVS components. TO-3 (TO-204AD) IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com FEATURES APPLICATIONS / BENEFITS • Unidirectional TVS series for DC power applications • Low Clamping ratio • Working voltage (VWM) range of 14 volts to 48 volts • Hermetically sealed TO-3 package • Low thermal resistance • Dissipates heat from prolonged transients • Consult factory for other package options including surface mount • LDTS 14 Series – Designed for a standard 12 volt power system. • LDTS 24 Series – Designed for a standard 12 volt power system capable of sustaining a 24 volt (double voltage) jump start. • LDTS 30 Series – Designed for a standard 24 volt power system. • LDTS 48 Series – Designed for a standard 24 volt power system capable of sustaining a 48 volt (double voltage) jump start. MAXIMUM RATINGS MECHANICAL AND PACKAGING • 3000 Watts of Peak Pulse Power dissipation at 50 ms (see Figure 1) • tclamping (0 volts to V(BR) min.): Less than 100 pico seconds (theoretical) • Storage temperature: -50 oC to +200oC • Operating temperature: -50 oC to 175oC (Figure 3) • Forward surge rating: 200 amps, 8.3ms at 25 oC • Steady state power dissipation: 50 watts, TC = 25 oC • Thermal resistance: Less than 1 oC/W • Repetition Rate (duty cycle): 0.1% • CASE: Industry standard TO-3 (TO-204AD) hermetically sealed, .052 inch diameter pins. • FINISH: All external surfaces are corrosion resistant and terminals solderable. • POLARITY: Standard polarity anode to case. • WEIGHT: 15 grams (approx.). • MOUNTING HARDWARE: Consult factory for optional insulator and sheet metal screws • See package dimensions on last page ELECTRICAL CHARACTERISTICS MICROSEMI PART NUMBER REVERSE STANDOFF VOLTAGE VWM VOLTS MINIMUM BREAKDOWN VOLTAGE V(BR) @ 20mA VOLTS MAXIMUM CLAMPING VOLTAGE @ IPP VC VOLTS MAXIMUM SURGE CURRENT (FIG. 2) @ IPP AMPS MAXIMUM REVERSE CURRENT @ VWM ID µA MAXIMUM VOLTAGE TEMP. VARIATION VBR mV/C LDTS 14 LDTS 14A 14.0 14.0 16.0 16.0 26.0 23.5 115.5 128.0 100.0 100.0 19.0 17.0 LDTS 24 LDTS 24A 24.0 24.0 26.5 26.5 43.0 39.0 70.0 77.0 100.0 100.0 31.0 29.0 LDTS 30 LDTS 30A 30.0 30.0 33.0 33.0 54.0 48.5 56.0 62.0 100.0 100.0 39.0 36.0 LDTS 48 LDTS 48A 48.0 48.0 53.0 53.0 86.0 78.0 34.0 38.0 100.0 100.0 55.0 50.0 Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503 Page 1 Copyright 2003 11-12-03 REV A |
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Mô tả tương tự - LDTS48 |
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