KSD-01F H90C TO-220 (2leg) Code: 39905812

The KSD-01F H90C is a highly compact, bimetallic thermal switch designed to protect circuit boards from overheating or to regulate ambient temperature. The “H” denotes it is Normally Open (N.O.), meaning the circuit stays disconnected until the temperature reaches 90°C, at which point the switch closes.

• Action Temperature:90°C with a standard tolerance of ±5°C.
• Contact Rating:220V AC (1A to 1.5A) or 24V DC (1.5A to 3A) depending on the exact manufacturing batch.
• Design:Packaged in a TO-220 style metal bottom plate with dimensions of 29.7 × 10.2 × 4.7 mm.
• Resettability:Resets to its open state automatically when the temperature drops approximately 5°C to 10°C below the activation threshold.
• Durability:Features a circuit resistance ≤50 mΩ, and an insulation value ≥100 MΩ.