M17/138-00001 | 50Ω | 3 GHz | 250°C | Low Outgassing | 16.2 g/m
RG188 A/U is no ordinary miniature coax. Featuring a stranded silver-plated copper-clad soft steel conductor, extruded PTFE dielectric, silver-plated copper braid and white PTFE jacket, it maintains reliable performance from -55°C to +250°C. This cable is purpose-built for three high-value application scenarios, environments where conventional cables cannot endure:
Satellite and spacecraft vacuum environments – where low outgassing is mandatory.
Aerospace and engine-bay high-temperature sensors – where 250°C and vibration resistance are required.
Mil itary UHF and portable radio systems – where 50Ω precision, 3 GHz bandwidth, and MIL-DTL-17 reliability matter.
| Parameter | Value |
|---|---|
| Impedance | 50 Ω |
| Maximum Operating Frequency | 3 GHz |
| Capacitance | 96.4 pF/m |
| Velocity of Propagation | 69.5% |
| Maximum Operating Voltage | 1200 VRMS |
| Parameter | M17/138-00001 |
|---|---|
| Temperature Range | -55°C to +250°C |
| Minimum Bend Radius (Static) | 12.7 mm |
| Weight | 16.2 g/m |
| Outer Diameter | 2.79 mm |
| RoHS Compliant | Yes |
| Frequency (GHz) | Attenuation (dB/m) |
|---|---|
| 0.1 | 0.249 |
| 0.4 | 0.525 |
| 1.0 | 0.860 |
| 2.4 | 1.351 |
Low Outgassing White PTFE Jacket – Critical for vacuum, space, and high-cleanliness environments. No carbon black, no contamination.
250°C Continuous Operation – Survives engine bays, exhaust systems, and spacecraft thermal cycling.
50Ω, 3 GHz Performance – Matches mil itary and aerospace RF systems with low VSWR and stable impedance.
Stranded Conductor for Vibration Resistance – Ideal for engine-mounted sensors and airborne equipment.
16.2 g/m, 12.7 mm Bend Radius – Lightweight and flexible for portable and space-constrained installations.
MIL-DTL-17 Qualified – M17/138-00001 for defense and aerospace reliability.
RoHS Compliant – Environmentally responsible materials.
Q: Why is the white PTFE jacket important?
A: White taped PTFE contains no carbon black, resulting in low outgassing and UV resistance. It is ideal for vacuum, space, and high-cleanliness environments where contamination is unacceptable.
Q: Can RG188 A/U be used in vacuum?
A: Yes. The white PTFE jacket is low outgassing and suitable for vacuum chambers, satellites, and spacecraft.
Q: Can RG188 A/U be used in a 75Ω system?
A: No. It is a 50Ω cable. Using it in a 75Ω system will cause impedance mismatch and high VSWR. For 75Ω systems, consider our RG187 A/U.
Q: What is the maximum frequency?
A: The RG188 A/U is specified up to 3 GHz, covering UHF, WiFi 2.4G, GPS, Bluetooth, SDR, and low S-band applications.
Q: What is the minimum bend radius?
A: The static minimum bend radius is 12.7 mm. Avoid repeated flexing beyond this radius.
Q: What connectors are available?
A: We offer 50Ω connectors including SMA, BNC, TNC, SMB, MCX, and custom assemblies.