RG188A/U High Frequency Coax Cable 50 Ohm Taped PTFE Jacket MIL-DTL-17 Compliant Cable

RG188A/U M17/138-00001 is a MIL-DTL-17 qualified 50 Ohm coaxial cable engineered for high frequency applications requiring exceptional thermal performance. This precision transmission line features a white taped PTFE jacket construction that enables continuous operation from -55°C to +250°C while maintaining excellent flexibility for routing in tight spaces. The 0.51mm silver-plated copper-clad soft steel (SCCS) inner conductor provides reliable signal transmission with the mechanical strength needed for fixed installations. The extruded PTFE dielectric at 1.52mm ensures consistent 50 Ohm impedance with 96.4 pF/m capacitance and 69.5% velocity of propagation. The silver-plated copper wire braid at 2.03mm delivers effective EMI shielding through 3 GHz. With 1200V RMS maximum operating voltage and 2.79mm overall diameter, RG188A/U is the preferred choice for aerospace avionics, defense systems, and high-frequency industrial applications where standard coaxial cables cannot withstand the thermal demands.

• White taped PTFE jacket – Wrapped construction (not extruded) provides superior flexibility and 250°C continuous temperature rating, outperforming FEP jacketed alternatives by 50°C
• 3 GHz frequency capability – Supports L-band, S-band, and high-frequency applications through 2400 MHz with low attenuation
• 1200V operating voltage – Higher voltage rating than standard 50 Ohm miniature coax, suitable for demanding defense and aerospace applications
• 0.51mm silver-plated copper-clad soft steel conductor – SCCS construction combines excellent conductivity with mechanical strength for reliable fixed installations
• Extruded PTFE dielectric at 1.52mm – Precision extruded PTFE ensures consistent 50 Ohm impedance and low signal loss
• Silver-plated copper wire braid – 2.03mm outer conductor provides effective EMI/RFI protection with excellent conductivity
• 96.4 pF/m capacitance – Optimized for high-frequency signal transmission with 69.5% velocity of propagation
• MIL-DTL-17 qualified – M17/138-00001 for mission-critical defense and aerospace applications requiring full traceability
• 2.79mm overall diameter – Compact form factor fits through tight cable channels in crowded avionics bays
• 12.7mm minimum bend radius – Flexible enough for complex routing paths while maintaining electrical performance
• 16.2 g/m lightweight construction – Ideal for weight-sensitive aerospace and airborne applications

• Aircraft avionics systems – Taped PTFE jacket withstands 250°C heat soak in engine-adjacent installations while 3 GHz bandwidth supports modern avionics data links
• Defense communication equipment – MIL-DTL-17 qualified for tactical radios and high-frequency data links requiring 1200V voltage rating
• Satellite payload wiring – PTFE construction provides low outgassing for vacuum operation with 16.2 g/m lightweight design
• Radar receiver front-ends – 50 Ohm impedance for L-band and S-band radar signal transmission
• High-frequency test and measurement – 3 GHz capability for laboratory instruments and RF testing up to 2.4 GHz
• Electronic warfare systems – Low attenuation through 2400 MHz supports EW receiver and jammer applications
• Missile guidance electronics – 250°C rating handles aerodynamic heating while 12.7mm bend radius fits tight form factors
• Shipboard electronics – Taped PTFE jacket provides excellent moisture resistance for marine environments
• Medical imaging equipment – High-frequency signal transmission for MRI and RF ablation systems
• Industrial RF sensors – Continuous monitoring in high-temperature environments up to 250°C

Q: What is the M17 part number for RG188A/U?

A: M17/138-00001 is the official MIL-DTL-17 part number.

Q: What is the temperature rating?

A: Continuous operation from -55°C to +250°C, enabled by the taped PTFE jacket construction.

Q: What is the maximum frequency?

A: 3000 MHz (3 GHz) specified maximum.

Q: What is the voltage rating?

A: 1200V RMS maximum operating voltage.

Q: What type of jacket does RG188A/U use?

A: White taped PTFE, which is wrapped rather than extruded. This construction provides superior flexibility and higher temperature rating compared to extruded FEP jackets.

Q: What is the impedance and capacitance?

A: 50 Ohm impedance with 96.4 pF/m capacitance.

Q: What type of conductor does RG188A/U use?

A: 0.51mm silver-plated copper-clad soft steel (SCCS) – the "soft steel" designation indicates optimized ductility for this application.

Q: What is the outer diameter?

A: 2.79mm including the taped PTFE jacket.

Q: What is the minimum bend radius?

A: 12.7mm for static installation.

Q: What is the weight?

A: 16.2 grams per meter, making it suitable for weight-sensitive aerospace applications.

Q: How does RG188A/U compare to RG316?

A: RG188A/U offers lower attenuation (0.860 dB/m vs 1.08 dB/m at 1 GHz) and higher temperature rating (250°C vs 200°C) than standard RG316, with similar 2.8mm diameter.

Q: What is the difference between taped PTFE and extruded FEP jackets?

A: Taped PTFE construction (as on this RG188A/U) offers 250°C temperature rating and superior flexibility, while extruded FEP jackets are typically limited to 200°C.

Q: What connectors work with RG188A/U?

A: SMA, TNC, BNC, MCX, MMCX, and other 50 Ohm connectors designed for 2.8mm diameter cables.

Q: Do you offer custom lengths?

A: Yes, RG188A/U M17/138-00001 is available in bulk spools, cut pieces, or fully assembled with connectors.