What is the name of the device shown in...

🔍 Key Concepts

• Compare how many electrical connections/leads each type of device normally has (diode, bridge, SCR, LED). • Notice the stud mounting style and how many lugs/tabs are present on the device in figure 2. • Recall that an SCR (silicon‑controlled rectifier) needs a separate gate connection, while an ordinary rectifier diode does not.

💭 Think About

• Look closely at figure 2: how many separate terminals or lugs can you actually connect wires to, besides the threaded mounting stud? • Which of the answer choices normally comes in a single stud‑mounted package with only two main connections? • Compare figure 2 with figure 4 and figure 7: which one in the set is clearly intended to be an SCR and which is clearly an LED? Use those to eliminate wrong answers.

✅ Before You Answer

• Count the number of leads/connection points on the figure 2 device and match that to the typical device types in the choices. • Verify which component in the illustration is already clearly a rectifier bridge (four terminals in a square block) and which is clearly a light‑emitting diode (small epoxy lens with two wire leads). • Confirm that the device you choose for figure 2 is a two-terminal, stud-mounted power device, not one requiring a separate gate/control lead.

What is the name of the device shown in figure "2" of the illustration? See illustration EL-0068.

rectifier bridge

power rectifier diode

light-emitting diode

silicon-controlled rectifier

🔍 Key Concepts

💭 Think About

✅ Before You Answer