Littelfuse TDB12D is a versatile plug-in time delay relay with an output load rating of 10 A resistive at 120/240 V AC and 28 V DC, suitable for various applications. It features a Magnal 11-pin plug-in termination type, -15% to 20% input tolerance, and ±0.1% or 20 ms repeat accuracy. With ≤±5% setpoint variation and ≤3.25 W power consumption, it ensures stable performance. Reset time is ≤50 ms, and the digital time delay type allows precise timing. The relay has a long electrical life of 1 x 10⁶ and mechanical life of 1 x 10⁷. It has ≤150 ms recycle time and ≤60 ms initiate time. The DC units are reverse polarity protected. The setting accuracy is ±2% or 50 ms, and an LED provides clear indication when the relay is energized. Overall, the TDB12D offers reliable and accurate time delay control for various power applications.