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GC ELECTRONICS 21339 Pre-Sensitized Circuit Board

GC Electronics' 21-339 is a positive pre-sensitized phenolic circuit board designed for easy and professional circuit board creation. This board features a 1/16" thick phenolic base with one ounce (0.0014") copper and is coated with a positive photo etch resist. It's compatible with GC Developer solutions (Part Nos. 22-225 or 22-226) for precise etching. The peel-off coating protects the board during handling and cutting, making it suitable for both hobbyists and professionals. Meets Fed. Spec.: S-10941-1.

Authorized Distributors
Source:DigiKey
Part No:2133 9
Stock:0
Inv Date:05-28-2026
Price: Unit price: $18.75
Buy/RFQ:
Part No:21-339
Stock:24
Inv Date:05-28-2026
Price: Unit price: $3.53
Buy/RFQ:
Part No:21-339
Stock:24
Inv Date:05-28-2026
Price: Unit price: $3.53
Buy/RFQ:

GC ELECTRONICS 21339 Pre-Sensitized Circuit Board Specifications:

  • Thickness: 1/16 inch
  • Copper: One ounce (0.0014")
  • Base Material: Phenolic
  • Resist: Positive photo etch resist
  • Developer: GC Developer, Part No. 22-225 or 22-226
  • Dielectric Constant: 5.3
  • Fed Spec: S-10941-1
  • Dimensions: 3" x 4"

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Frequently Asked Questions

Where can I buy GC ELECTRONICS 21339?

You can click on the BUY or RFQ button to purchase 21339 from an authorized GC ELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part 21339?

You can download the 21339 datasheet or visit the GC ELECTRONICS website for support.

Who is the manufacturer of 21339?

GC ELECTRONICS

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