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| NTE4903 thru NTE4999 Surge Clamping, Transient Overvoltage Suppressor Bidirectional Description: The NTE4900 series of silicon Transient Suppressors designed to protect voltage sensitive components from high energy voltage transients. Transient over voltage suppressor devices have become very important as a consequence of their high surge capability, extremely fast response time, and low incremental surge resistance (Rs). Application: The NTE4900 series has a peak pulse power rating of 1500 watts for one millisecond. Can protect integrated circuits, hybrids, CMOS, MOS, and other voltage sensitive components in a broad range of applications such as telecommunications, power supplies, computers, automotive, industrial and medical equipment. Absolute Maximum Ratings; Peak Pulse Power Dissipation (TA = +25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500W tclamping (0 volts to Bv Min) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 5 x 10-9 sec Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to +175C Forward Surge Rating 200 Amps, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/20 Second at +25C Steady State Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0 W @ T1 = +25C Electrical Characteristics: Clamping Factor: 1.33 @ full rated power 1.20 @ 50% rated power The clamping factor is defined as: The ratio of the actual VC (Clamping Voltage) to the actual BV (Breakdown Voltage) as measured on a specific device. Maximum Ratings NTE Type Number Diagram Number Maximum Reverse Stand Off Voltage (Volts) VR Min Typ Breakdown Voltage @ IT (Volts) VBR Max IT mA Clamping Voltage @ Ipp (1msec) (Volts) VC Reverse Leakage Current @ VR (A) IR Peak Pulse Current (Amps) Ipp Temperature Coefficient of BV%/C 4903 4905 4907 4911 4915 183 183 183 183 183 5.50 6.40 7.02 8.55 10.20 6.12 7.13 7.79 9.50 11.40 6.80 7.50 8.20 10.00 12.00 7.48 7.88 8.61 10.50 12.60 10.0 10.0 10.0 10.0 1.0 10.8 11.3 12.1 14.5 16.7 1000.0 500.0 200.0 10.0 5.0 139.00 132.00 124.00 103.00 90.00 0.057 0.061 0.065 0.073 0.078 Electrical Characteristics (Cont'd): Clamping Factor: 1.33 @ full rated power 1.20 @ 50% rated power The clamping factor is defined as: The ratio of the actual VC (Clamping Voltage) to the actual BV (Breakdown Voltage) as measured on a specific device. Maximum Ratings NTE Type Number Diagram Number Maximum Reverse Stand Off Voltage (Volts) VR Min Typ Breakdown Voltage @ IT (Volts) VBR Max IT mA Clamping Voltage @ Ipp (1msec) (Volts) VC Reverse Leakage Current @ VR (A) IR Peak Pulse Current (Amps) Ipp Temperature Coefficient of BV%/C 4919 4921 4923 4927 4929 4933 4935 4937 4939 4941 4943 4945 4947 4951 4953 4955 4959 4961 4963 4965 4967 4969 4971 4973 4975 4977 4979 4981 4983 4985 4989 4991 4993 4995 4997 4999 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 183 11.10 12.80 13.60 15.30 17.10 20.50 23.10 25.60 28.20 30.80 33.30 36.80 40.20 43.60 47.80 53.00 58.10 64.10 70.10 77.80 85.50 94.00 102.00 111.00 128.00 136.00 145.00 154.00 185.00 214.00 171.00 256.00 273.00 300.00 342.00 376.00 12.40 14.30 15.20 17.10 19.00 22.80 25.70 28.50 31.40 34.20 37.10 40.90 44.70 48.50 53.20 58.90 64.60 71.30 77.90 86.50 95.00 105.00 114.00 124.00 143.00 152.00 162.00 171.00 209.00 237.00 190.00 285.00 304.00 333.00 380.00 418.00 13.00 15.00 16.00 18.00 20.00 24.00 27.05 30.00 33.00 36.00 39.00 43.00 47.00 51.05 56.00 62.00 68.00 75.00 82.00 91.00 100.00 110.00 120.00 130.00 150.00 160.00 170.00 180.00 220.00 250.00 200.00 300.00 320.00 350.00 400.00 440.00 13.70 15.80 16.80 18.90 21.00 25.20 28.40 31.50 34.70 37.80 41.00 45.20 49.40 53.60 58.80 65.10 71.40 78.80 86.10 95.50 105.00 116.00 126.00 137.00 158.00 168.00 179.00 189.00 231.00 263.00 210.00 315.00 336.00 368.00 420.00 462.00 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 18.2 21.1 22.5 25.2 27.7 33.2 37.5 36.0 45.7 49.9 53.9 59.3 64.8 70.1 77.0 85.0 92.0 103.0 113.0 125.0 137.0 152.0 165.0 179.0 207.0 219.0 234.0 246.0 328.0 344.0 274.0 414.0 438.0 482.0 548.0 603.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 4.0 4.0 5.0 82.00 71.00 67.00 59.50 54.00 45.00 40.00 41.40 33.00 30.00 28.00 25.30 23.30 21.40 19.50 17.70 16.30 14.60 13.30 12.00 11.00 9.90 9.10 8.40 7.20 6.80 6.40 6.10 4.60 5.00 5.50 3.58 4.50 3.08 2.78 3.50 0.081 0.084 0.086 0.088 0.090 0.094 0.096 0.097 0.098 0.099 0.100 0.101 0.101 0.102 0.103 0.104 0.104 0.105 0.105 0.106 0.106 0.107 0.107 0.107 0.108 0.108 0.108 0.108 0.109 0.109 0.108 0.110 0.110 0.110 0.110 0.110 Note 1. Normal selection of a zener transient over voltage suppressor is by rated stand-off voltage (VWM) and should be equal or greater than DC or continuous peak operating voltage. 1.100 (27.94) Min .375 (9.52) Max .042 (1.07) Dia Max .205 (5.21) Dia Max |
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