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Do SMD markings not apply to switches?

Here is a Matsushita switch on a keypad matrix from circa 2008:

Matsushita 89R: Tactile Switch

The top is stamped with "8", "9", "R", and ":". It has the following measurements:

  • 6.31mm width (body 6.31mm square)
  • 6.90mm length with J-legs
  • 3.6mm total height

Matsushita tactile switch

Pulling this one was a major pain - pads lifted way too easily. Luckily one of those pads is mechanical only. They will need some TLC (and probably some bonding agent.)

The closest I can find is a Panasonic EVP-BFAC1A000 but this is not an exact match. Can anyone positively ID this switch?

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  • \$\begingroup\$ does it matter that much? You could just find one with similar dimensions \$\endgroup\$ – BeB00 Mar 18 at 22:48
  • \$\begingroup\$ I like Grayhill \$\endgroup\$ – DKNguyen Mar 18 at 23:04
  • \$\begingroup\$ Looks like you melted D65 too. \$\endgroup\$ – Ron Beyer Mar 19 at 0:40
  • \$\begingroup\$ @BeB00 I have no way to accurately measure actuating force, so that alone means that any other replacement could "feel" different. A little difference is ok, but a large difference would make this key stand out from the others. Ron, D65 tests ok but has a rounded corner, possibly my fault. \$\endgroup\$ – rdtsc Mar 19 at 12:12
  • \$\begingroup\$ If you can go at a store and try them, you could find one with the same feel... Next time use a hot air gun to unsolder SMD parts. :) If you need to do this many times it's worth buying one. + You can solder thermoplastics with it. \$\endgroup\$ – Fredled Mar 22 at 0:55
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I think it's from the Panasonic EVQQW series, see the datasheet page 3.

However, I can't find out what the numbers mean

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