Raychem QSZH-125 Heat Shrink Tubing – Halogen-Free Protection for Automotive Connections

The Raychem QSZH-125 heat shrink tubing from TE Connectivity is specifically designed for environmental sealing, mechanical protection, and electrical insulation of in-line splices in the automotive industry. This halogen-free, dual-wall heat shrink tubing offers reliable protection against harsh conditions typical of vehicle wiring, such as wear and damage.

Reliable Protection for Automotive Connections

The QSZH-125 heat shrink tubing is placed over the splice, and when heated, the adhesive melts, forming a tight seal around the wires. This ensures an excellent seal and protection for the connection, reducing the risk of short circuits or failures. The heat shrink tubing also provides mechanical protection against bending, wear, and abrasion, as well as electrical insulation for safe performance under various conditions.

Five sizes of the QSZH-125 heat shrink tubing are available, suitable for a wide range of automotive splice configurations, with the ability to cover up to seven wires on each side. The sizes are marked as 1, 2, 3, 3A, and 4, making it easy to select the right size based on the specific application.

Why Choose Raychem QSZH-125 Heat Shrink Tubing?

  • Halogen-free for safe automotive applications
  • Dual-wall protection against wear and damage
  • Protection against abrasion and bending of wire connections
  • Suitable for applications with up to seven wires per side

With the Raychem QSZH-125 heat shrink tubing, you can rely on durable and dependable protection for all your automotive connections!

Raychem QSZH 125 krimpkous van TE Connectivity

Features of RAYCHEM QSZH-125 Heat Shrink Tubing

  • Excellent environmental sealing (2 x 108 Ohm minimum after 24-hour immersion in 5% NaCl)

  • The flame-retardant shrinkable sleeve and adhesive provide complete flame retardancy.

  • Operating temperature range: -40°C to 125°C

  • Inspectable after installation

  • Small cross-sectional profile

  • Complies with the RoHS directive

  • 4:1 Shrink Ratio

  • Halogen Free

Product Dimensions Raychem QSZH-125 Shrink Tube

QSZH-125 Medium Wall Shrink Tube with 4:1 Ratio – Click to View Products

Type Inside Diameter Before Shrink Inside Diameter After Shrink Wall Thickness Adhesive Thickness Length
QSZH-125-NR1 5.75mm 1.25mm 0.6mm 1.15mm 50mm
QSZH-125-NR2 7.50mm 1.65mm 0.7mm 1.40mm 50mm
QSZH-125-NR3 11.00mm 2.40mm 0.8mm 1.80mm 65mm
QSZH-125-NR3A 14.00mm 3.00mm 0.9mm 2.15mm 65mm
QSZH-125-NR4 18.30mm 4.35mm 0.9mm 2.20mm 75mm

Ordering Information for QSZH-125 Heat Shrink Tubing

Standard colors: Transparent (-X) with black adhesive layer


Size choice: Always order the largest size that fits well over the part to be covered.


Packaging: Cut lengths


Order description: Specify product name, size, and color (for example, QSZH-125-NR1).

Certifications/Approvals QSZH-125 Shrink Sleeve

Series UL Military Raychem
QSZH-125 RK-6771

We are happy to assist you in making the right choice

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TE Connectivity RAYCHEM distributor