Siemens STB 11

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STB 11
Siemens STB 11 V42263-D11K6 -- top.jpg
Manufacturer Siemens AG
Family Siemens STB
Product code V42263-Dnn-Knnn
Introduced 1980
Discontinued 2001
Precedes Siemens STB 21
Switch type Tactile
Clicky? no
Sense method Metal leaf
Rated lifetime > 10 M
Tactile force ~65 cN or ~75 cN
Actuation force ~50 cN (start), ~100 cN (end)
Pretravel 2.0 or 1.6 ± 0.4 mm
Total travel 4.0 mm or 2.5 mm
Keycap mount RAFI mount
Switch mount PCB or plate mounted
Patents EP0028000 (1980)

Description and History

see Siemens STB.


Part number
Type Colour
Diode Travel Response force Remarks
Siemens STB 11 V42263-D11K6 -- top.jpg D11-A1/-K1 Momentary Black/Black No 4 mm 75 cN
STB11-D12-A5.jpg D12-A1 Momentary Black/Red No 4 mm 65 cN
D12-A5 Yes
Siemens STB 11 V42263-D15K1 -- top.jpg D15-A1/-K1 Changeover Black/Black No 4 mm 75 cN
STB11-D15-A129.jpg D15-A129 Latching Black/Black No 4 mm 75 cN long green LED
STB11-D32.jpg D32-A1/-K1 Momentary Black/Grey No 2.5 mm 65 cN
D32-A5/-K5 Yes
STB11-D43+Adapters.jpg D34-L1 Momentary Black/Natural No 2.5 mm 115 cN For sealing foil

Note: The SIEMENS logo has not always been present.
The variant for use with a sealing foil had yellow adapters that punched through the foil and provided the mount post for the keycap outside the foil.


  • Siemens AG
    • Terminals DS 075, DS 078, 3975, 9750, MTS 2000
    • Personal computers PC-D, PC-X, PC-16
    • Programmers PG 655, PG 675 (late revisions)
    • BTX clients T 3220, T 3310/3315
  • Tandberg Data (Tandberg Display):
  • ACS AN90
  • DS 2069 terminal of Rudolf Hell GmbH (late revisions)
  • Tiki 100 microcomputer of Tiki Data (some of them)


External links