MILITARY APPROVED CURRENT REGULATOR FIELD EFFECT DIODES JAN-1N5283 THRU JAN-1N5314 AVAILABLE AS JAN, JAN-TX AND JAN-TX-V GEOMETRY 465, PG. 60 CURRENT CONSTANT OVER WIDE VOLTAGE RANGE @ HIGH SOURCE IMPEDANCE CONNECT IN PARALLEL FOR HIGHER CURRENT MAXIMUM RATINGS DO-7 Package Glass Body Dumet veasseinowel =~! 0.096 + 0.011 | 0.265 0.035 Cathode (Wide color band) e 0.020 +0.002 Lead Diameter 0 MIN- All Dimensions in Inches PARAMETER SYMBOL } VALUE UNITS Peak Operating Voltage (Ts = 55C to +200C) POV 100 Volts Steady State Power Dissipation Po 600 mW @TL=75C 5 Derate above TL = 75C 4.8 mw/C Lead Length = 3/8 (Forward or Reverse Bias) Operating and Storage Junction Temperature Range Ty, Tstg 55 to +200 Cc ELECTRICAL SPECIFICATIONS: Ta = 25C unless otherwise noted Regulator Current Minimum Minimum Maximum Type Ip (mA) @ Vr = 25 V Dynamic Knee Limiting No. Impedance Impedance L Voltage @VT=25 V @VK=6.0V IL =0.8 Ip (min) nom. min. max. Zt (MQ) ZK (MQ) Vi (Volts} #N5283 |0.22 |0.198 | 0.242 25.0 2.750 1.00 1N5284 |0.24 [0.216 | 0.264 19.0 2.350 1.00 1N5285 |0.27 |0.243 | 0.297 14.0 1.950 1.00 1N5286 |0.30 {0.270 | 0.330 9.0 1.600 1.00 1N5287 |0.33 |0.297 | 0.363 6.6 1.350 1.00 1N5288 10.39 |0.351 | 0.429 4.10 1.000 1.05 1N5289 |0.43 |0.387 | 0.473 3.30 0.870 1.05 1N5290 |0.47 |0.423 | 0.517 2.70 0.750 1.05 1N5291 |0.56 |0.504 | 0.616 1.90 0.560 1.10 1N5292 (0.62 |0.558 | 0.682 1.55 0.470 1.13 1N5293 {0.68 |0.612 | 0.748 1.35 0.400 1.15 1N5294 | 0.75 |0.675 | 0.825 1.15 0.335 1.20 1N5295 | 0.82 |0.738 | 0.902 1.00 0.290 1.25 1N5296 |0.91 {0.819 | 1.001 0.880 0.240 1.29 1N5297 | 1.00 | 0.900 | 1.100 0.800 0.205 1.35 1N5298 | 1.10 | 0.990 | 1.210 0.700 0.180 1.40 1N5299 | 1.20 | 1.080 | 1.320 0.640 0.155 1.45 1N5300 | 1.30 | 1.170 | 1.430 0.580 0.135 1.50 1N5301 | 1.40 | 1.260 } 1.540 0.540 0.115 1.55 1N5302 | 71.50 } 1.350 | 1.650 0.510 0.105 1.60 1N5303 | 1.60 | 1.440 | 1.760 0.475 0.092 1.65 1N5304 | 1.80 | 1.620 | 1.980 0.420 0.074 1.75 1N5305 | 2.00 {| 1.800 | 2.200 0.395 0.061 1.85 1N5306 | 2.20 | 1.980 | 2.420 0.370 0.052 1.95 1N5307 | 2.40 | 2.160 | 2.640 0.345 0.044 2.00 1N5308 | 2.70 | 2.430 | 2.970 0.320 0.035 2.15 1N5309 | 3.00 | 2.700 | 3.300 0.300 0.029 2.25 1N5310 | 3.30 | 2.970 | 3.630 0.280 0.024 2.35 1N5311 | 3.60 | 3.240 | 3.960 0.265 0.020 2.50 1N5312 | 3.90 | 3.510 | 4.290 0.255 0.017 2.60 1N5313 | 4.30 } 3.870 | 4.730 0.245 0.014 2.75 1N5314 | 4.70 | 4.230 | 5.170 0.235 0.012 2.90 SYMBOLS AND DEFINITIONS ip Diode Current. ti. Limiting Current: 80% of IP minimum used to determine Limiting voltage, VL. le Pinch-Off Current: Regulator current at specified Test Voltage, Vr. POV Peak Operating Voltage: Maximum voltage to be applied to device. 01 Current Temperature Coefficient. Vak ~- Anode-to-Cathode Voltage. V ~Knee Impedance Test Voltage: Specified voltage used to establish Kree impedance, Zk. Vu Limiting Voltage: Measured at 11, Vi, to- gether with Knee AC Impedance, 2x, indi- cates the Knee characteristics of the device. VT Test Voltage: Voltage at which !P and Zr are specified. 2x Knee AC Impedance at Test Voltage: To test for Zk, a 90 Hz signal Vk with RMS value equal to 10% of test voltage. Vk is superim- Posed on V. Zk = VK/IK where Ik is the resultant AC current due to VK. To provide the most constant current from the diode, Zk should be as high as possible; therefore, a minimum value of 2k is specified. Zt AC Impedance at Test Voltage: Specified, as a minimum value. To test for Zt, a 90 Hz signal with RMS value equal to 10% of Test Voltage, VT, is superimposed on VT. APPLICATION NOTE As the current available from the diode is tempera- ture dependent, it is necessary to determine junction temperature, Tu, under specific operating conditions to calculate the value of the diode current. The following procedure is recommended: Lead Temperature. TL, shall be determined from: Tu = Ota Pot Ta where @va is lead to ambient thermal resistance and Po is power dissipation. @ La is generally 30-40C/W for the various clips and tie points in common use, and for printed circuit-board wiring. Junction Temperature, Ty, shall be calculated from: Ta = Ti+ s Po where GL is taken from Figure 2. For circuit design limits of Vak, timits of Po may be estimated and extremes of Tu may be computed. Using the information on Figures 4 and 5, changes in current may be found. To improve current regulation, keep Vak low to reduce Po and keep the leads short, especially the cathode lead, to reduce @s4L. TEL CRYSTALONICS 147 Sherman Street, Cambridge, Mass. 02140 Tel: (617) 491-1670 e TWX: 710-320-1196TYPICAL CURRENT REGULATOR CHARACTERISTICS TYPICAL THERMAL RESISTANCE 5.0 300 Zk @VK lp & ZT @VT 40 = < = 250 4 3.0 2 2 im Eo ay #10 e < 200 e oe 52 Pa 5 0 Os i 3 = 8 A POINT OF LEAD TEMPERATURE W _20 Q 150 a MEASUREMENT 3 54 \ 2 49 5 a ; 7 ie S00 Sw 100 i 80 ANODE CATHODE (MOST HEAT CONDUCTION IS _100 50 THROUGH THE CATHODE LEAD} 2 -1 o 40 60 8 100 120 140 160 0 0.2 0.4 0.6 08 1.0 Vax, ANODE-CATHODE VOLTAGE (VOLTS) Li, LEAD LENGTH (INCHES) TYPICAL FORWARD CHARACTERISTICS 7.0 Tus 28C 5.0 POV = 100 V (DATA OBTAINED 3.0F FROM PULSE TESTS) 2.0 1.0 0.7 o5 03 0.2 io, FORWARD DIODE CURRENT (mA) 0.1 0.1 0.2 0.3 05 0.7 1.0 3.0 50 70 1 Vax, ANODE-CATHODE VOLTAGE (VOLTS) CURRENT REGULATION FACTOR TYPICAL: i 2 Ta = 25C AVax = 40 V.Vak VARIED FROM 10 V to 50 V Alp = Ip @50V le @10V # LEAD LENGTH 6.4 30C/W Alp, CURRENT CHANGE (mA) 0.3 0.4 . 06 07 1.0 le, NOMINAL PINCH-OFF CURRENT (mA) TEMPERATURE COEFFICIENT 2 N Tu= +28C to +150C Vak= 25 V @ Alp =* |pinomy ATC" 700 aC) eeeoos eb eb 61. TEMPERATURE COEFFICIENT (%/C) eo boss new De s Nn 0.3 0.4 oS O68 67 O8 0010 2.0 4.0 le, NOMINAL PINCH-OFF CURRENT (mA) TEMPERATURE COEFFICIENT 1.0 08 Ta = 5 C 10 +250C Vak =25V Alp = 21 tewwom ATI (PC) 100 0.6 04 0.2 RANGE 61, TEMPERATURE COEFFICIENT (%/C) 666 6 ec m@ & ND o i oo N 0.4 0.5 0.6 (ep, NOMINAL PINCH-OFF CURRENT {mA}