Editing Micro Switch SD Series (section)

===Known Variants===
Variants are listed in order of part number. The extra character found at the start of some part numbers is treated separately for the purposes of sorting; for example D1K3S is listed after 1K3S.

{| class="wikitable variants-table"
!
!Number
!Action
!Keystem
!Weight
!Signal
!Known usage
|-
|[[Image:Micro Switch-SD-1A3A.jpg|100x100px|none]]
|1A3A
|Momentary
|Square, sloped
|2.5 oz
|Sink level
|[[Micro Switch 68SD15-1-E]]
|-
|[[Image:Micro-Switch-SD-1A3B.JPG|100x100px|none]]
|1A3B
|Momentary
|Square, sloped
|2.5 oz
|Sink pulse
|[[Micro Switch 68SD15-1-E]]
|-
|[[Image:TI-Silent-700-745-Switch-1A3S.JPG|100x100px|none]]
|1A3S
|Momentary
|Square, sloped
|2.5 oz
|Logic scan
|[[TI Telex 58SD17-2-B]], [[TI Silent 700 Model 745|TI Silent 700 Model 745 (63D17-3-B)]]
|-
| |[[Image:TI-Silent-700-745-Switch-1A8S.JPG|100x100px|none]]
|1A8S
|Momentary
|Square, sloped
|8.0 oz
|Logic scan
|[[TI Telex 58SD17-2-B]], [[TI Silent 700 Model 745|TI Silent 700 Model 745 (63SD17-3-B)]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|1B3S
|Momentary
|Square, stepped
|2.5 oz
|Logic scan
|[[Nokia MikroMikko 1 keyboard]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|1F5A
|Momentary
|None
|3.5 oz
|Sink level
|[[UGC-74 Keyboard]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|1K3S
|Momentary
|Bar
|2.5 oz
|Logic scan
|[[Bunker Ramo ADMIN 20211322]]
|-
|[[Image:D1K3S Honeywell Hall Effect.jpg|100x100px|none]]
|D1K3S
|Momentary
|Bar
|2.5 oz
|Logic scan
|[[Bunker Ramo ADMIN 20403025]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|2K3S
|Momentary
|Bar
|2.5 oz
|Logic scan
|[[Bunker Ramo ADMIN 20403025]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A1A
|Momentary
|Square, sloped
|1.1 oz
|Sink level
|[[Honeywell 26SD1-2-H]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A1E
|Momentary
|Square, sloped
|1.1 oz
|?
|[[Burroughs TP110]], [[Burroughs TP130]], [[Burroughs RIII]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|T4A2B
|Momentary
|Square, sloped
|2.0 oz
|Sink pulse
|[[Wang 271-1126]] (Meaning of T is unknown)
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A2K
|Momentary
|Square, sloped
|2.0 oz
|Timed repeat
|[[Wang 271-1126]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A3A
|Momentary
|Square, sloped
|2.5 oz
|Sink level
|[[Bud Keypad 83959]], [[Honeywell 26SD1-2-H]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|Q4A3B
|Momentary
|Square, sloped
|2.5 oz
|Sink pulse
|[[Wang 271-1126]] (Meaning of Q is unknown)
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A3E
|Momentary
|Square, sloped
|2.5 oz
|?
|[[Burroughs TP110]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|R4A3E
|Momentary
|Square, sloped
|2.5 oz
|?
|[[Burroughs TP130]] (Meaning of the R is unknown)
|-
|[[Image:No photograph.svg|100x100px|none]]
|4A8E
|Momentary
|Square, sloped
|8.0 oz
|?
|[[Burroughs TP110]], [[Burroughs TP130]]
|-
|[[Image:Telex-270-4B1D-Switch-Alone.jpg|100x100px|none]]
|4B1D
|Momentary
|Square, stepped
|1.1 oz
|None
|[[Convergent 64-00164]], [[Telex 270 Keyboards#PN: 952003-222|Telex 278]]
|-
|[[Image:Telex-270-4B1E-Switch-Alone.jpg|100x100px|none]]
|4B1E
|Momentary
|Square, stepped
|1.1 oz
|?
|[[Space-cadet keyboard|Space-cadet]], [[Telex 270 Keyboards#PN: 952003-222|Telex 278]], [[Burroughs RIII]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4B1S
|Momentary
|Square, stepped
|1.1 oz
|Logic scan
|[[Convergent 64-00164]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4B2E
|Momentary
|Square, stepped
|1.1 oz
|?
|[[Burroughs RIII]]
|-
|[[Image:Telex-270-4B3E-Switch-Alone.jpg|100x100px|none]]
|4B3E
|Momentary
|Square, stepped
|2.5 oz
|?
|[[Symbolics 3600 Rev D]], [[Space-cadet keyboard|Space-cadet]], [[Telex 270 Keyboards#PN: 952003-222|Telex 278]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4B3K
|Momentary
|Square, stepped
|2.5 oz
|Timed repeat
|[[Wang 271-1126]]
|-
|[[File:4B3S.jpg|100x100px|thumb|none|4B3S]]
|4B3S
|Momentary
|Square, stepped
|2.5 oz
|Logic scan
|[[Intergraph 2710]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|4T3S
|Momentary
|Stepped
|2.5 oz
|Logic scan
|[[Convergent 64-00164]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|5A3E
|Alternate
|Square, sloped
|2.5 oz
|?
|[[Burroughs TP110]], [[Burroughs TP130]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|6A1D
|Support
|Square, sloped
|1.1 oz
|None
|[[Convergent 64-00164]], [[Burroughs TP110]], [[Burroughs TP130]], [[Burroughs RIII]]
|-
|[[Image:Telex-270-6B1D-Switch-Alone.jpg|100x100px|none]]
|6B1D
|Support
|Square, stepped
|1.1 oz
|None
|[[Convergent 64-00164]], [[Space-cadet keyboard|Space-cadet]], [[Honeywell 26SD1-2-H]], [[Telex 270 Keyboards#PN: 952003-222|Telex 278]], [[Burroughs RIII]]
|-
|[[File:9B3B.jpg|left|thumb|106x106px]]
|9B3B
|Momentary
|LED support
|?
|?
|[https://deskthority.net/viewtopic.php?f=62&t=23087 SD-16073]
|-
|[[Image:Micro-Switch-SD-12B3S.jpg|100x100px|none]]
|12B3S
|Momentary
|LED support
|2.5 oz
|?
|[[Convergent 64-00164]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|10B2E
|Momentary
|Square, stepped
|2.2 oz
|?
|[[Burroughs RIII]]
|-
|[[Image:No photograph.svg|100x100px|none]]
|16B3E
|Momentary
|Alternate, stepped
|2.5 oz
|?
|[[Sun 32SD38-4-E]]
|}