TekBox TBJT Wideband Injection Transformers

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TekBox TBJT Wideband Injection Transformers

TekBox Models TBJT01, TBJT02, TBJT03 with Frequency Ranges up to 45, 7, 50 MHz

The TekBox TBJT01, TBJT02, and TBJT03 are wideband injection transformers for control loop stability measurements. They provide galvanic isolation between the swept signal source and the control loop. The injection transformers are internally terminated with a 5 Ω resistor and protected with a 100 mA fuse. The usable frequency range is 10 Hz to 45 MHz (TBJT01), 1 Hz to 7 MHz (TBJT02), or 150 kHz to 50 MHz (TBJT03).

  • Usable frequency range 10 Hz...45 MHz (TBJT01), 1 Hz...7 MHz (TBJT02), or 150 kHz...50 MHz (TBJT03).
  • 3-dB frequency range 15 Hz...9 MHz typ. (TBJT01), 2 Hz...3 MHz typ. (TBJT02), or 50 kHz...50 MHz typ. (TBJT03).
  • Characterized frequency range 1 Hz...100 MHz.

Model Overview

ModelTBJT01TBJT02TBJT03
Frequency rangeUsable frequency range 10 Hz...45 MHz; 3-dB frequency range 15 Hz...9 MHz typ.Usable frequency range 1 Hz...7 MHz; 3-dB frequency range 2 Hz...3 MHz typ.Usable frequency range 150 kHz...50 MHz; 3-dB frequency range 50 kHz...50 MHz typ.
Turns ratio1:1
Insertion loss (S21)15.5 dB typ.16 dB typ.3 dB max. at 50 MHz
More tech. specsCapacitance 90 pF at 1 kHz; primary to secondary winding;
DC saturation current 12 mA;
max. voltage rating 600 V CAT II; primary to secondary winding;
termination resistor 5 Ω;
fuse 100 mA (Littlefuse 0451.100MRL); secondary (output) side
Capacitance 310 pF at 1 kHz; primary to secondary winding;
DC saturation current 12 mA;
max. voltage rating 600 V CAT II; primary to secondary winding;
termination resistor 5 Ω;
fuse 100 mA (Littlefuse 0451.100MRL); secondary (output) side
Max. RF power rating20 W;
output voltage rating 300 VAC at 50/60 Hz, 210 VAC at 400 Hz; 500 VDC;
residual 50 Hz voltage 40 mV at the input connector (high Z) at 240 VAC at the secondary terminals;
isolation test, EUT - input 2500 V, 22 GΩ
ConnectorsInput 50 Ω BNC female, output 4 mm safety banana jacks, 20 mm spacing
Operating temperature range0...+60°C0...+50°C
Dimensions (mm)70 x 60 x 140; 250 g70 x 60 x 140; 300 g70 x 60 x 140; 300 g


Information on product safety:

Manufacturer:
TekBox Digital Solutions Vietnam Co. Ltd., Saigon Hi-Tech Park, Factory 4, 4F, Lot I-3B-1, N6 Street, Thu Duc City, 700 000 Ho Chi Minh City/VNM
www.tekbox.com

Responsible person:
Meilhaus Electronic GmbH, Am Sonnenlicht 2, 82239 Alling/DEU
info@meilhaus.com

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