Okay, I'm ready to summarize the information from the provided text. Here's a breakdown of the document, focusing on the key aspects of the Digitron Semiconductor Transient Voltage Suppressors (TVS) series:

1. Product Overview:

️· Series: 1.5KE6.8 – 1.5KE400A
️· Type: Unidirectional and Bidirectional Transient Voltage Suppressors (TVS)
️· Power Capability: 1500W
️· Application: Protection against voltage transients.

2. Key Specifications (Table Information - Highlights):

The tables provide detailed specifications for each device. Here's a summary of the most important columns and what they represent:

️· Type Number: Identifies the specific TVS device (e.g., 1.5KE220A, 1.5KE400)
️· Rated Standoff Voltage (V WM): The maximum DC voltage the device can handle without breakdown. This should be equal or greater than the operating voltage.
️· Breakdown Voltage (V BR): The voltage at which the device begins to conduct significantly.
️· Maximum Clamping Voltage (C PP): The maximum voltage the device will allow through during a transient event.
️· Maximum Standby Current (l D): The small leakage current under normal operating conditions.
️· Maximum Pulse Current (l PP): The maximum surge current the device can handle.
️· Temperature Coefficient of VBR (αVBR): Indicates how the breakdown voltage changes with temperature.

️· Bidirectional: Devices with "C" or "CA" at the end of the part number.

3. Important Notes & Considerations:

️· Selection Criteria: Choose a device with a VWM rating equal to or greater than the operating voltage.
️· Quality Inspections: Maximum Pulse Current (l PP) and Clamping Voltage are key indicators of device quality.
️· Bidirectional Devices: Leakage current is doubled for bidirectional devices with a VWM of 8V or less.
️· Forward Voltage: For unidirectional devices, the forward voltage is 3.5V max at 200 amps.

4. Mechanical Characteristics:

️· Case Material: Void-free transfer molded thermosetting epoxy body.
️· Polarity: Unidirectional devices have a cathode band. Bidirectional devices do not have a cathode marking.
️· Dimensions: Provides dimensions for the case (BD, BL, LD, LL) in both inches and millimeters.

In essence, this document is a datasheet providing detailed technical information about Digitron's 1.5KE series of TVS diodes, enabling engineers and technicians to select and utilize these devices for transient voltage protection in various applications.

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