Cobham Signal & Control Solutions

Cobham Signal & Control Solutions (formerly Aeroflex Signal & Control Solutions) is a leading supplier of high performance solid-state RF and microwave components and subsystems.

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Coaxial Tunnel Diode Detectors

Cobham Signal & Control Solutions - Coaxial Tunnel Diode Detectors

Superior performance and high reliability are designed into these detectors. They offer extremely stable output voltage over wide temperature excursions, typically +/-0.15dB from -65°C to +100°C at 1GHz and approx. +/-0.3dB at 18GHz. No bias is required for operation. Designs are available, in selected frequency bands, from 100MHz (or lower) to 18GHz. Typical output impedance is in the range of 95 to 125. This allows for fast pulsed video response and use in wide bandwidth requirements. Video bandwidths may be modified by selection of the RF bypass capacitor and load value. Square law typically ranges from TSS up to -17dBm. The upper limit can be raised as high as -13dBm with selected load values. The output polarity is usually negative but can be made positive if requested.

Features:
  • Exceptional Temperature Stability
  • Low Video Resistance (112 typical)
  • Flat Output vs. Frequency Over Broadband Performance
  • Very Fast Pulse Response
  • No Bias Required
  • Flexible Design Options
Applications:
  • Transmitter Monitoring
  • Missile Guidance Systems
  • Input to Low-Noise Amplifiers
  • Broadband Or Narrowband ECM Receivers
  • Power and Signal Monitors
  • Doppler Radar and Beacon Receivers
  • Matched units available for Multi-channel Receivers, Amplitude Comparator Systems and Discriminators

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Coaxial Tunnel Diode Detectors
Part (1)
Number
Frequency
Range
(GHz)
Min. (2)
Sensitivity
K
(mV/mW)
Flatness
vs
Frequency
(+/-dB)
Typical
(3)
TSS
(dBm)
Typical (4)
VSWR
Nominal
(5)
Video
Cap. (pF)
Standard
Case
Styles
Optional
Case
Styles
ACTP-1523 0.1 - 0.5 800 0.3 -51 2.5:1 270 C3 C8,C15,C62
ACTP-1572 0.1 - 1 900 0.4 -51 2.5:1 270 C3 C8,C15,C62
ACTP-1524 0.5 - 1 800 0.2 -51 2.5:1 39 C3 C8,C15
ACTP-1629 0.1 - 2 900 0.35 -51 2.3:1 75 C3 C8,C15,C62
ACTP-1501 0.5 - 2 800 0.35 -51 2.3:1 39 C3 C15
ACTP-1525 1 - 2 800 0.25 -51 2.5:1 20 C3 C15
ACTP-1573 0.1 - 4 800 0.3 -51 2.3:1 75 C3 C8,C15,C62
ACTP-1502 2 - 4 800 0.2 -51 2.3:1 20 C3 C15
ACTP-1514 2 - 6 800 0.5 -50 2.3:1 20 C3 C32,C5,C15
ACTP-1663 1 - 12 700 0.85 -51 2.5:1 20 C3 C8,C15,C62
ACTP-1555 2 - 8 750 0.5 -51 2.5:1 20 C3 C8,C15
ACTP-1503 4 - 8 750 0.4 -50 2.5:1 9 C3 C32
ACTP-1648 4 - 8 650 0.4 -50 2.0:1 12 C3 C8,15
ACTP-1583 6 - 12 750 0.4 -50 2.5:1 12 C3 C8,C15
ACTP-1504 8 - 12 700 0.4 -50 2.4:1 9 C3 -
ACTP-1528 2 - 18 650 1.0 -50 2.8:1 12 C3 C32
ACTP-1584 0.5 - 18 600 1.3 -50 3.0:1 20 C3 C32,C15
ACTP-1625 1 - 18 650 1.1 -50 2.7:1 20 C3 C32,C15
ACTP-1563 6 - 18 600 0.9 -50 2.8:1 12 C3 C32,C15
ACTP-1662 7 - 18 650 1.0 -50 2.7:1 12 C3 C32
ACTP-1506 8 - 18 650 0.7 -50 2.3:1 12 C3 -
ACTP-1505 12 - 18 700 0.4 -51 2.1:1 9 C3 -

Notes:

  1. Available in both negative and positive polarities, substitute "N" or "P" in part number.
  2. Diode values can be changed to alter the level of sensitivity. As sensitivity is increased, VSWR will degrade. VSWR will improve as sensitivity is lowered. Flatness and TSS will also be influenced by these changes. If your applications require something special, please contact the factory.
  3. Tangential Signal Sensitivity (TSS) is a measure of low level sensitivity with respect to noise. It is measured using a video amplifier with a 2MHz bandwidth and a 3dB noise figure.
  4. VSWR measured at or below -20dBm input power level.
  5. Video capacitance is used for RF bypass. This value can be changed if required for video response time or other considerations. Contact the factory if value other than those shown are needed.

Environmental Specifications:

MIL-E-5400, MIL-STD-202, MIL-E-16400
Operating Temp: -65°C to +100°C
Storage Temp: -65°C to +100°C
Humidity: MIL-STD-202F, M103, Cond B
Shock: MIL-STD-202F, M213, Cond B
Altitude: MIL-STD-202F, M105, Cond B
Vibration : MIL-STD-202F, M204, Cond B
Thermal Shock: MIL-STD-202F, M107, Cond A
Temperature Cycle: MIL-STD-202F, M105C, Cond D
Maximum Input Power: +14dBm
(This allows for 3dB margin from possible burnout at +17dBm)

Screening:

Standard Screening:
Internal Visual per MIL-STD-883, Method 2017
Temperature Cycle: -65°C to +100°C, 10 cycles
Optional High-Rel Screening (Ref MIL-PRF-38534):
Internal Visual per MIL-STD-883, Method 2017
Stabilization Bake per MIL-STD-883, Method 1008
Temperature Cycle per MIL-STD-883, Method 1010
Constant Acceleration per MIL-STD-883, Method 2001
Burn-in per MIL-STD-883, Method 1015
Leak Test per MIL-STD-883, Method 1014
External Visual per MIL-STD-883, Method 2009

 

 

Part Number Ordering Information:

Example: ACTP-1555NC312
ACTP-1555: Coaxial Tunnel Diode Detector, 2 - 8GHz
N: Negative output polarity
C3: Package type
12: 12pF custom video capacitance (omit for standard value)