MICROWAVE NOISE TUBES & NOISE SOURCES TD/TN Series DESCRIPTION CP Clare’s TD Series of gas discharge microwave noise tubes and TN Series of gas discharge microwave noise sources are the element in a microwave RF system that allows accurate measurements of the noise figure of the receiver or its components. The requirements of a device used for making such noise figure measurements include broad bandwidth inherent in the active element, stability, ease of operation, and long life. In general, the range of usefulness of these noise sources permits measurements of noise figures from about 2 to 30dB. The PS-237 through PS-240 current-regulated power supplies can be used to operate many of the noise sources described herein. FEATURES ■ ■ ■ ■ ■ APPLICATIONS ■ Noise figure measurement Excess noise ratios (ENR): up to 20dB Broad bandwidth Excellent long term stability Life up to 20,000 hours AC, DC, or pulsed operation SPECIFICATION RANGES Parameter Range Units Frequency 0.2 - 220.0 GHz ENR 8.8 - 20.1 dB Operating Current 30 - 250 mA Starting Voltage 0.9 - 7.0 kV (See detailed specifications for more data. Contact CP Clare for TD and TN part numbers or for other requirements not listed.) www.cpclare.com 571 MICROWAVE NOISE TUBES & NOISE SOURCES TD/TN Series TD SERIES GAS DISCHARGE NOISE SOURCE TUBES with Filamentary or Hollow Cathodes All characteristics at 25˚C. FREQUENCY BAND WAVERANGE GUIDE (GHz) 1.12-1.70 L WR-650 2.60-3.95 S WR-284 3.30-4.90 S WR-229 3.95-5.85 C(G) WR-187 5.85-8.20 X(J) WR-137 8.20-12.40 X WR-90 12.40-18.00 Ku WR-62 18.00-26.50 K WR-42 26.50-40.00 Ka WR-28 (1.20-1.40 only) PART # / EIA TYPE NUMBER PACKAGE OUTLINE MOUNT TYPE RECOMMENDED MODE OF OPERATION(1) TD-21/6881 TD-29/7101 TD-33/7147 TD-49 TD-62/7992 TD-75 TD-91 TD-12/6358 TD-22/6782 TD-31 TD-32 TD-34/7148 TD-38/8151 TD-56/8286 TD-82 TD-24 TD-30 TD-10/6356 TD-39/7999 TD-43/8287 TD-48/7989 TD-83 TD-10/6356 TD-39/7999 TD-43/8287 TD-48/7989 TD-67/8288 TD-11/6357 TD-23/6882 TD-40/8152 TD-44/7988 TD-58/8293 TD-72/8059 TD-73 TD-93B TD-114 TD-18/6684 TD-41/8030 TD-46 TD-54/7991 TD-55/8290 TD-92 TD-13/6359 TD-42/8031 TD-50/7990 TD-51/8291 TD-81 TD-76/7993 TD-77/8292 1 1a 1a 1 1 1 special 2 special 2a 2a 2 2 2 special special special 3 3 3 3 special 3 3 3 3 3 4 4 4 4 4 4 special special special 5 5 special 5 5 5 6 6 6 6 special special special 90°H 90°H 90°H 90°H 90°H 90°H 10°E 10°E 90°H 10°E 10°E 10°E 10°E 10°E 90°E 10°E 10°E 10°E 10°E 10°E 10°E 90°E 10°E 10°E 10°E 10°E 15°E 10°E 10°E 10°E 10°E 10°E 10°E 90°E 90°E 10°E 10°E 10°E 20°E 10°E 10°E 10°E 10°E 10°E 10°E 10°E 10°E 10°E 10°E DC AC,DC AC,DC pulse DC pulse DC DC AC,DC AC,DC AC,DC DC pulse pulse DC AC,DC AC,DC DC pulse pulse DC DC DC pulse pulse DC pulse DC DC pulse pulse pulse pulse DC pulse DC DC pulse AC,DC DC pulse pulse pulse DC pulse DC DC DC pulse MINIMUM STARTING VOLTAGE SPIKE DC ANODE STARTING CURRENT (kV) (mA) 4.0 4.5 4.0 4.0 4.5 4.5 7.0 2.7 2.0 2.7 2.7 2.7 3.3 3.5 0.9 2.5 2.5 3.1 3.5 3.5 2.7 0.9 3.1 3.5 3.5 2.7 3.5 2.7 2.7 3.3 3.5 3.5 3.3 0.9 0.9 1.5 2.7 3.3 ~1.2 2.7 3.5 3.5 2.7 3.3 2.7 3.5 3.3 2.7 3.0 250 250 250 200 250 200 250 250 250 250 250 250 200 200 75 250 250 250 175 175 250 100 250 175 175 250 150 200 200 175 175 175 175 100 100 200 200 175 100 200 175 175 200 175 200 175 150 125 100 TUBE DROP (VDC) TUBE-IN MOUNT ENR 65 130 75 125 ~145 235 230 80 45 90 170 160 145 265 55 60 110 70 140 210 135 55 75 140 210 135 225 75 115 125 205 208 133 54 165 90 70 130 35 130 230 125 68 125 157 260 148 130 175 15.20(2) 18.00(2) 15.20(2) 15.20(2) 18.00(2) 18.00(2) 15.20(2) 15.20 8.85 15.20 17.80 17.75 15.27 17.90 18 15.30 1 15.32 15.50 17.85 17.70 18.90 15.65 15.50 17.90 17.75 18.00 15.60 18.00 15.60 18.00 17.75 15.56 14.50 14.50 15.30 15.80 15.85 15.20(2) 18.00 17.85 15.65 15.90 16.00 18.05 17.90 16.15 16.0 16.0 (1) (dB) DC operation — cathode at one end only. AC,DC operation — cathodes at both ends. Pulse operation — cathode at one end specially designed for pulse operation. If the anode current during the “on” time of a square wavepulse (>100µs duration) is nominally the same as the rated DC anode current, the tube drop during this period will be approximately the same as the rated DC tube drop. (2) Excess noise ratio of tube only. North America: 1-800-CPCLARE 572 Europe: 32-11-300868 Asia: 886-2-2523-6368 Japan: 81-3-3980-2212 MICROWAVE NOISE TUBES & NOISE SOURCES TD/TN Series TD SERIES GAS DISCHARGE NOISE SOURCE TUBES with Indirectly-Heated Cathodes All characteristics at 25˚C. FREQUENCY RANGE (GHZ) BAND PART NUMBER/ EIA TYPE NUMBER 3.4-3.6 2.9-3.1 2.7-2.9 S TD-124 TD-129 TD-121 8.2-12.4 X TD-126 MINIMUM STARTING VOLTAGE DC ANODE CURRENT (mA) TUBE DROP (VDC) TUBE-INMOUNT ENR 0.60 0.45 0.45 75 75 75 40 35 35 18.30 18.50 18.50 TN-65 TN-71 TN-72 1.50 100 90 15.6 TN-130 SPIKE (kV) USED IN MOUNT (dB) OUTLINE DRAWINGS (Noise Source Tubes with Filamentary or Hollow Cathodes) C A 0.74 ± 0.08 (0.292 ± 0.032) E B F 0.24 TYP. (0.097) D C A 0.74 ± 0.08 (0.292 ± 0.032) E B ALT. - A 0.24 TYP. (0.097) D DIMENSION (INCHES) OUTLINE NUMBER 1/1a(3) 2/2a(3) 3/3a(3) A B C D E F various 16.937-17.437 13.875-14.375 0.500 max 0.310-0.360 0.270-0.320 14.625-15.000 17.625-18.000 14.375-15.000 1.350-1.435 0.990 max 0.555 max 1.475-1.550 0.975-1.050 0.547-0.579 0.188 max 0.305-0.325 0.245-0.265 C 0.74 ± 0.08 (0.292 ± 0.032) 6.98 MAX. (2.750) A E D 1.27 MAX. (0.500) 1.41 DIA. MAX. (0.555) 0.24 TYP. (0.097) 0.48 MAX. DIA. (0.188) DIMENSION (INCHES) OUTLINE NUMBER 4 5 6 (3) (4) A B C D E F 8.625 min 7.375 min 6.187 min 1.500 max 1.250 max 1.250 max 11.937-12.250 10.875-11.250 9.687-10.000 0.370-0.380 0.235-0.265 0.160-0.194 0.550 max 0.500 max 0.500 max 0.3804 0.2654 0.1944 The “a” suffix indicates using the bi-pin termination depicted in the inset labelled “ALT.-A”. The diameter of the tube shall not exceed this value over the length of the tube denoted in the figure by “B”. www.cpclare.com 573 MICROWAVE NOISE TUBES & NOISE SOURCES TD/TN Series TD SERIES GAS DISCHARGE NOISE SOURCE TUBES with Indirectly-Heated Cathodes(5) All characteristics at 25˚C. BAND PART NUMBER FREQUENCY RANGE (GHz) ENR (dB) TUBE DROP (VDC) DC ANODE CURRENT (mA) VHF TN-46 0.2-0.25 18.5 200 30 UHF TN-47 TN-48 0.56-0.64 0.34-0.51 20.3 18.5 325 75 50 L TN-51 TN-52 TN-54 TN-55 TN-57 1.0-2.0 1.0-2.0 1.0-2.0 1.25-1.55 1.28-1.35 20.1 20.1 20.5 20.1 20.5 200 200 200 200 225 50 50 50 50 50 S TN-60 TN-64 TN-65 TN-71 TN-72 TN-73 TN-74 TN-75 2.0-4.0 2.7-2.9 3.4-3.6 2.9-3.1 2.7-2.9 2.7-2.9 2.7-2.9 3.1-3.5 18.5 18.5 18.3 18.5 18.5 18.5 18.5 18.3 200 35 40 35 35 35 35 40 C TN-76 TN-77 TN-78 TN-82 5.3-6.0 5.3-6.0 5.45-5.82 5.3-6.0 18.5 13.5 18.5 13.5 H TN-83 TN-84 7.5-8.6 7.5-8.6 X TN-94 TN-95 TN-97 TN-101 TN-124 Ku(K) MINIMUM STARTING VOLTAGE CIRCUIT LENGTH (INCHES) MOUNTING CIRCUIT 1.5 15.50 Helical Coupling 7/8" coax 2.0 2.0 16.5 10.0 Direct Coupling Helical Coupling 7/8" coax Type N 1.9 1.9 1.9 1.9 1.9 8.94 10.38 17.31 9.56 12.56 Direct Coupling Direct Coupling Direct Coupling Direct Coupling Direct Coupling 7/8" coax 7/8" coax Type N 7/8" coax 7/8" coax 50 60 75 75 75 75 60 75 1.9 0.45 0.6 0.45 0.45 0.45 0.45 0.6 10.38 3.75 2.50 3.63 3.09 3.09 3.75 2.63 Direct Coupling 90°E 90°E 90°E 90°E 90°E 90°E 90°E 7/8" coax RG-75/U RG-75/U RG-75/U RG-75/U RG-75/U RG-75/U RG-75/U 60 60 60 60 150 150 150 150 0.7 0.7 0.7 0.7 2.00 3.50 2.75 3.56 90°E 90°E 90°E 90°E RG-49/U RG-49/U RG-95/U RG-49/U 18.5 15.0 60 55 75 100 0.8 0.8 1.56 2.50 90°E 90°E RG-51/U RG-51/U 8.9-9.1 8.5-9.6 8.5-9.6 8.5-9.6 8.2-12.4 18.5 14.5 18.5 14.5 12.5 50 50 50 50 50 60 100 75 100 50 0.95 0.95 0.95 0.95 1.00 1.63 2.50 1.63 2.25 2.50 90°E 90°E 90°E 90°E 90°E RG-67/U RG-67/U RG-67/U RG-52/U RG-52/U TN-102 TN-103 TN-104 TN-128 15.0-16.5 12.4-18.0 15.0-16.6 12.0-14.0 18.5 18.5 12.3 13.5 60 140 95 50 40 50 50 50 1.2 2.0 1.0 1.0 1.50 7.50 1.63 2.00 90°E 0°E 90°E 90°E RG-67/U RG-107/U RG-91/U RG-91/U K(P) TN-106 TN-125 18.0-26.5 22.0-23.0 18.5 12.5 175 65 50 50 1.9 1.5 6.44 2.25 0°E 90°E RG-66/U RG-53/U Ka(Q) TN-107 TN-109 TN-126 26.5-40.0 34.0-36.0 31.0-32.0 18.0 18.0 13.3 140 140 75 40 35 50 2.5 2.5 1.5 5.13 7.38 2.25 0°E 0°E 90°E RG-96/U RG-96/U RG-96/U R TN-111 50.0-75.0 18.0 230 30 2.5 4.63 0°E RG-98/U SPIKE (kV) (5) CP Clare can usually refurbish noise sources (depending on condition of waveguide) and install replacement tubes. North America: 1-800-CPCLARE 574 Europe: 32-11-300868 Asia: 886-2-2523-6368 Japan: 81-3-3980-2212 MICROWAVE NOISE TUBES & NOISE SOURCES TD/TN Series TD SERIES GAS DISCHARGE NOISE SOURCE TUBES with Filamentary Cathode Noise Tubes(5) All characteristics at 25˚C WAVE-GUIDE PART FREQUENCY APPROX. TUBE DC ANODE MINIMUM REPLACEMENT MOUNTING NUMBER RANGE ENR DROP CURRENT STARTING TUBE MATE (GHz) (dB) (VDC) (mA) FLANGE VOLTAGE SPIKE (kV) (5) WR-42 TN-170 18.0-26.5 15.0 170 120 2.0 TD-170 7°E UG-595/U WR-28 TN-162 26.5-40.0 15.4 170 120 2.0 TD-162 7°E UG-599/U WR-22 TN-172 33.0-50.0 15.4 170 120 2.0 TD-172 7°E UG-599/U WR-19 TN-163 40.0-60.0 15.4 170 120 2.0 TD-163 7°E UG-385/U WR-15 TN-164 50.0-75.0 15.0 170 120 2.0 TD-164 7°E UG-385/U WR-12 TN-171 60.0-90.0 15.0 210 100 2.5 TD-171 7°E UG-385/U WR-10 TN-165 75.0-110.0 14.2 225 75 3.0 TD-165 7°E UG-385/U WR-8 TN-167 90.0-140.0 13.0 225 75 3.0 TD-167 7°E UG-385/U WR-6 TN-166A 110.0-170.0 13.0 225 50 3.0 TD-166A 7°E UG-385/U WR-5 TN-173 140.0-220.0 9.0 225 50 3.0 TD-173 7°E UG-385/U CP Clare can usually refurbish noise sources (depending on condition of waveguide) and install replacement tubes. NOISE SOURCE POWER SUPPLIES with Current Regulation PART NUMBER PS-237 PS-238 PS-239 PS-240 (6) FOR NOISE TUBES(6) TN-162 thru TN-172 except TN-166A TN-173, TN-166A AC INPUT DC STARTING DC OPERATING VOLTAGE (kV) CURRENT (mA) 5.0 5.0 5.0 5.0 150 150 120 75 115VAC, 60Hz 220VAC, 50Hz 115VAC, 60Hz 220VAC, 50Hz These power supplies, though designed for the TN-162 through TN-173, are capable of operating many other noise sources made by CP Clare. ORDERING INFORMATION A complete part number is represented by the information in the Part Number column of the specification table. www.cpclare.com 575