Product Overview
Grayhill 50MT36-01-2-08S Miniature 2P8T Shorting Rotary Switch - MIL-DTL-3786 Solder Lug
Condition
Single unit available. Unused NOS - clean and pristine, recovered from legacy electronics supply chain. Evaluation: Visual inspection only. Function testing not performed. No knob or hardware included - switch body only.
Ships same business day from Idaho. Packed carefully.
Product Overview
Grayhill part number 50MT36-01-2-08S. A miniature, single-deck rotary switch from Grayhill's Series 50 - a 1/2-inch body diameter line built to MIL-DTL-3786. The MT designation indicates a military-style process seal. Configured as 2-pole, 8-position (2P8T) with 36-degree detent spacing and shorting (make-before-break) contact timing. Termination is via solder lug. Requires a 1/4-inch panel mounting hole and a knob bored for a 1/8-inch flatted shaft.
Key Features
- Positions: 8 (2P8T configuration)
- Poles per deck: 2 - single deck
- Detent angle: 36 degrees per position
- Contact timing: Shorting - make-before-break
- Voltage/current rating: 200 mA at 28 VDC / 150 mA at 115 VAC
- Shaft: 1/8-inch (0.125") diameter, flatted
- Termination: Solder lug - not PCB-mount
- Military rating: MIL-DTL-3786
- Body diameter: 1/2 inch (Series 50)
- Mounting: 1/4-inch panel hole
Applications
- Military radio and avionics panel controls
- Aircraft cockpit instrumentation
- Precision laboratory and test equipment
- High-end audio step attenuator builds
- Medical imaging consoles and industrial instrumentation
Frequently Asked Questions
What does "shorting" mean and why does it matter?
Shorting (make-before-break) means the wiper briefly contacts the next position before leaving the current one during rotation. This is the correct behavior for certain circuits such as volume attenuators where an open moment would cause a loud pop or arc. It must not be used in circuits where momentarily bridging two adjacent positions would create a short circuit or damage components. Verify your application requires make-before-break before ordering.
Will my existing knob fit this switch?
Only if it is bored for a 1/8-inch (0.125") flatted shaft. Standard knobs are typically designed for a 1/4-inch shaft and will not fit without an adapter. Verify your knob bore before ordering.
Does this switch mount to a PCB?
No. This part uses solder lug termination and requires panel mounting through a 1/4-inch hole. It is not compatible with PCB footprints.
What is the MT designation?
MT indicates a military-style process seal, per MIL-DTL-3786. This seal protects internal contacts from flux and contaminants during soldering and provides added environmental protection in harsh or demanding installations.
Is anything included besides the switch?
Switch body only. No knob, hardware, or documentation is included.
Shorting contact timing is the most critical compatibility check for this part. Confirm your circuit requires make-before-break before purchase.
