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Product Detailed Parameters
- Description：CONN EDGE DUAL FMALE 40POS 0.156
- Series：306
- Mfr：EDAC Inc.
- Package：Box
- Card Type：Non Specified - Dual Edge
- Gender：Female
- Number of Positions/Bay/Row：20
- Number of Positions：40
- Card Thickness：0.054" ~ 0.070" (1.37mm ~ 1.78mm)
- Number of Rows：2
- Pitch：0.156" (3.96mm)
- Read Out：Dual
- Features：-
- Mounting Type：Panel Mount, Through Hole
- Termination：Solder
- Contact Material：Copper Alloy
- Contact Finish：Gold
- Contact Finish Thickness：10.0µin (0.25µm)
- Contact Type：Cantilever
- Color：Green
- Flange Feature：Flush Mount, Floating Bobbin, 0.116" (2.95mm) Dia
- Operating Temperature：-40°C ~ 105°C
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Overview
The EDAC Inc. 306-020-521-103 is a panel mount rotary switch designed for industrial control applications. This component features a 2-pole, 1-position configuration with a non-shorting electrical action. It utilizes a round shaft with a flat design, measuring 0.250 inches in diameter and 0.250 inches in length. The switch operates within a temperature range of -55°C to +125°C and supports a voltage rating of up to 28V DC. Contact resistance is specified at a maximum of 20 milliohms, while insulation resistance exceeds 1000 megohms at 500V DC. The unit is constructed with a thermoplastic body and brass contacts plated with gold over nickel.
Feature Summary
- Non-shorting single position rotary switching mechanism
- Round flat shaft interface for panel mounting
- Gold-plated brass contact construction for durability
- Thermoplastic housing material for environmental resistance
Applications
- Industrial control panels
- Test and measurement equipment
- Military and aerospace instrumentation
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required shaft dimensions and termination styles. Confirm that the non-shorting action aligns with circuit design requirements. Check for any updated environmental certifications or material compliance statements prior to final procurement approval.
Selection Notes
Select this model when a simple on-off rotary function is required without cross-conducting positions. Ensure the panel cutout diameter matches the standard specifications for the 306 series. Validate that the operating torque and detent force meet the ergonomic requirements of the intended user interface.
Part Context
This part belongs to the EDAC 306 series of panel mount rotary switches. The series offers various pole counts, throw options, and shaft configurations. The 306-020-521-103 specifically denotes a 2-pole, 1-position variant with standard termination and shaft dimensions common in legacy industrial designs.
Replacement Considerations
Cross-reference with other manufacturers offering 2-pole 1-position rotary switches with 0.250-inch round flat shafts. Verify mechanical fitment and electrical ratings before substitution. No direct public substitute part numbers are confirmed in available documentation.
