In a dual in-line package (DIP), what is the typical center-to-center pin spacing (pitch) along a row of leads on the package?

Introduction / Context:
Understanding package dimensions is essential for PCB layout and prototyping. The DIP form factor has standardized pin spacing that matches breadboards and through-hole PCBs.

Given Data / Assumptions:

• Package: DIP (dual in-line package).
• Asked dimension: pitch along a single row (adjacent pins).
• Common imperial units: mils (1 mil = 0.001 inch).

Concept / Approach:
DIP packages use a 0.1 inch pitch along each row, which equals 100 mils (2.54 mm). Across-row spacing (body width) is commonly 300 mils or 600 mils depending on pin count and package variant, but the question concerns pin-to-pin pitch along a row.

Step-by-Step Solution:
Recall DIP standard: 0.1 inch pitch → 100 mils.Map mils to inches: 100 mils = 0.1 inch.Select 100 mils as the typical DIP row pitch.

Verification / Alternative check:
Mechanical drawings for 14-pin and 16-pin DIPs confirm 2.54 mm (100 mils) pitch.

Why Other Options Are Wrong:
5 and 10 mils are trace/spacing scales, not pin pitch. 50 mils is used in compact headers but not DIP lead pitch. 200 mils is too large for in-row pitch (though across-row spacings can be 300 or 600 mils).

Common Pitfalls:
Confusing along-row pitch (100 mils) with across-row spacing (300/600 mils body sizes).

Final Answer:
100 mils