
PTFE Wire AF250 High Temperature
Part No. SW-AF250-18-500
PTFE insulated wire for extreme temperature applications up to 250°C with superior chemical resistance.
Conductor
18 AWG
Voltage
250V
Ampacity
7A @ 250°C
Temperature
250°C
Technical Specifications
| Conductor | Silver-Plated Copper Stranded |
| Insulation | PTFE (Teflon) |
| Gauge | 18 AWG |
| Voltage Rating | 250V |
| Temperature Rating | 250°C |
| Ampacity | 7A @ 250°C |
| Color | White/Red/Blue/Black |
| Packaging | 500 ft Reels |
Construction
Conductor
Silver-Plated Copper Stranded, sized 18 AWG to deliver 7A of continuous ampacity.
Insulation
PTFE (Teflon), rated to 250°C and 250V.
Outer Jacket
Integrated with the PTFE (Teflon) system — sized to protect the 18 AWG conductor through 250°C thermal cycling in aerospace.
Finished Dimensions
White/Red/Blue/Black jacket, supplied on 500 ft Reels.
Applications
Common Questions
What is the minimum order quantity and lead time?
Minimum order quantity is 500 ft. In stock — typical lead time 7-10 business days. Large-volume and OEM programs may qualify for reduced minimums and blanket order pricing.
What certifications and documentation are provided?
This product carries UL Listed, MIL-SPEC, RoHS Compliant certifications and complies with AF250, MIL-W-16878. Every shipment includes a Certificate of Compliance. UL yellow cards, RoHS/REACH declarations, production test reports, and full batch traceability are available on request.
Can this cable be used outdoors or in extreme temperatures?
Rated 250°C. For outdoor or UV-exposed installations, specify the UV-resistant formulation. Beyond the rated temperature range, silicone (high heat) or TPE (cold flex) alternatives are available — contact us with your environmental parameters.
Do you offer custom lengths, colors, or configurations?
Yes. Custom jacket colours (2,500 ft min), custom print legends, gauge changes, shielding, and multi-conductor assemblies are available. OEM programs with blanket orders can negotiate minimums below the standard threshold. Send requirements to engineering@shanghaiunicorncable.com.
Ready to Order PTFE Wire AF250 High Temperature?
Factory-direct pricing · Certificate of Compliance included · Responds within 24 hours
+86-186 0163 8071 · Monday–Friday 9AM–6PM CST



