Editing Kailh PG1511 series

{{TODO photo|more=true|reason=internals}}

{{Infobox dswitch
| image name        = Kailh PG1511 series.jpg
| manufacturer      = [[Kailh]]
| inventor          = 
| switch type       = Clicky; tactile; linear
| sense method      = [[Metal leaf]]
| product code      = PG151101D''nnn''
| family            = 
| keycap mount      = [[Cherry MX mount]]
| switch mount      = [[Plate mount]], [[PCB mount]]
| lifetime          = 50–70 M
| force graph       = 
| peak force        =
| pretravel         = 2.0±0.6, 1.4±0.3, 1.1±0.3 mm
| travel            = 4.0±0.6, 3.5±0.3 mm
}}

'''Kailh PG1511 series''' is a family of [[Cherry MX clone]] switches. It is the basis for the original [[Razer switch]], manufactured for Razer by Kaihua.

==Description==
PG1511 series switches are made by [[Kailh]] in China, and are branded "'''Kailh'''" or labelled "'''PG1511'''" (one or the other). They are available in clicky, linear and tactile versions, with support for both through-hole and SMD RGB LEDs.

Kaihua have published detailed comparisons between their switches and Cherry MX switches on their website; the photos at least are taken from a [http://mouse.zol.com.cn/229/2297497.html review posted at mouse.zol.com.cn].

Like with most Cherry MX clones, the internals of PG1511 series are virtually identical to genuine Cherry switches. One key difference is that PG1511 series switches do not have [[gold crosspoint]] contacts.

Bounce time for the SMD types is cited as 5 ms or less, at a keystroke rate of 3–5 keystrokes per second.<ref name="Kailh-PG1511-SMD" />

===Lifetime===
Lifetime was originally cited as 50 million keystrokes.<ref name="Kailh-PG1511-classic" /> The through-hole LED types are cited as having lifetimes of 60 million for the click type and 70 million for the linear and tactile types.<ref name="Kailh-PG1511-RGB" /> The SMD LED version has a lifetime of 70 million keystrokes across all versions.<ref name="Kailh-PG1511-SMD" />

===LED illumination===
====Through-hole====
PG1511 series adopted the use of all four of Cherry's base holes (inner holes for monochrome LED, outer holes for jumper or diode) for a single four-leg "DIP" through-hole RGB LED. Kailh cite the benefits of this arrangement as being:<ref name="Kailh-PG1511-RGB" />

*Better illumination by bringing the LED closer to the keycap
*Greater light output from a through-hole LED than an SMD LED
*Lower heat output from through-hole LED versus SMD LED
*Lower LED power requirements

Most "speed" types accept any LED types, but have no lateral support for LED legs. The bronze "speed" type only accepts two-pin through-hole and SMD LEDs; the exterior holes for jumpers, diodes and four-pin through-hole RGB LEDs are omitted to make way for the click bar.

====SMD====
PG1511 has also been adapted to accept SMD illumination. These versions have clear covers, and two wide holes for LED legs, to accept two- and four-leg through-hole LEDs as well as allow space to place an SMD LED under the switch. These are depicted on the PG1511 SMD page, although the diagrams still show the classic design.<ref name="Kailh-PG1511-SMD" /> The pages for the reduced-travel versions do have diagrams for the new design.<ref name="Kailh-PG1511-gold" />

===Click mechanism===
Most PG1511 series switches use a [[click collar]] to achieve audible feedback, derived from the Cherry MX design. The new bronze type (PG151101D188) uses a "click bar",<ref name="DT-click-bar" /> a rod spring pushed aside by the slider in a manner similar to a click leaf. The click bar design was first seen in the diminutive [[Kailh PG1350 series|PG1350 series]], and provides a distinct click on both press and release; the click bar does however remove the [[hysteresis]] from the switch.

===Travel===
Standard switch travel is the standard 4 mm with 2 mm pretravel; this is still the case for the SMD types.<ref name="Kailh-PG1511-SMD" /> Four additional designs have a reduced travel of 3.5 mm:

*A gold clicky type the 1.4 mm pretravel
*Bronze (clicky), copper (tactile) and silver (linear) types with 1.1 mm pretravel<ref name="Kailh-PG1511-bronze" /><ref name="Kailh-PG1511-silver" /><ref name="Kailh-PG1511-copper" />

Note that these colour names were taken from an AliExpress listing, as they are more convenient than Kailh's names. Kailh use "coppery" for the tactile switch, "golden" for the 1.4 mm clicky switch, and "thick golden" for the 1.1 mm clicky switch. The silver switch's slider has metallic pigment as with [[Cherry MX Speed Silver]], while the other sliders are matte.

==Variants==
PG1511/Kailh Yellow was the first variant, which appeared around 2007. The characteristics of Kailh Yellow and Kailh Red are the same. Kailh Yellow is no longer sold. Since then, a number of different varieties have emerged, and it's not clear what exactly is on sale.

The Kailh website shows the standard SMD types to have a black lower shell, but production parts have a white shell. The part numbers for these types are not yet known.

The monochrome PCB mount variants have part numbers but have not yet been sighted; all observed types are plate mount.

===Current===
{| class="wikitable variants-table"
|-
!                                               !! Part no.     !! Colour !! Type    !! Actuation !! Travel !! Pretravel !! Click mechanism !! Illumination !! Fixing pins
|-
| [[File:Kailh PG1511 Black.jpg|150px]]         || PG151101D01  || Black  || Linear  || 60 gf     || 4 mm   || 2 mm      || None            || Monochrome   || No
|-
| [[File:No photograph.svg|150px]]              || PG151101D15  || Black  || Linear  || 60 gf     || 4 mm   || 2 mm      || None            || Monochrome   || Yes
|-
| [[File:Kailh PG1511 Red.jpg|150px]]           || PG151101D05  || Red    || Linear  || 50 gf     || 4 mm   || 2 mm      || None            || Monochrome   || No
|-
| [[File:No photograph.svg|150px]]              || PG151101D43  || Red    || Linear  || 50 gf     || 4 mm   || 2 mm      || None            || Monochrome   || Yes
|-
| [[File:Kailh PG1511 Brown.jpg|150px]]         || PG151101D49  || Brown  || Tactile || 60 gf     || 4 mm   || 2 mm      || None            || Monochrome   || No
|-
| [[File:No photograph.svg|150px]]              || PG151101D09  || Brown  || Tactile || 60 gf     || 4 mm   || 2 mm      || None            || Monochrome   || Yes
|-
| [[File:Kailh PG1511 Blue.jpg|150px]]          || PG151101D60  || Blue   || Clicky  || 60 gf     || 4 mm   || 2 mm      || Click collar    || Monochrome   || No
|-
| [[File:No photograph.svg|150px]]              || PG151101D10  || Blue   || Clicky  || 60 gf     || 4 mm   || 2 mm      || Click collar    || Monochrome   || Yes
|-
| [[File:Kailh PG1511 TH RGB Black.jpg|150px]]  || PG151101D94  || Black  || Linear  || 60 gf     || 4 mm   || 2 mm      || None            || RGB T/H      || No
|-
| [[File:Kailh PG1511 TH RGB Red.jpg|150px]]    || PG151101D93  || Red    || Linear  || 50 gf     || 4 mm   || 2 mm      || None            || RGB T/H      || No
|-
| [[File:Kailh PG1511 TH RGB Brown.jpg|150px]]  || PG151101D92  || Brown  || Tactile || 60 gf     || 4 mm   || 2 mm      || None            || RGB T/H      || No
|-
| [[File:Kailh PG1511 TH RGB Blue.jpg|150px]]   || PG151101D91  || Blue   || Clicky  || 60 gf     || 4 mm   || 2 mm      || Click collar    || RGB T/H      || No
|-
| [[File:Kailh PG1511 SMD RGB Black.jpg|150px]] ||              || Black  || Linear  || 60 gf     || 4 mm   || 2 mm      || None            || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 SMD RGB Red.jpg|150px]]   ||              || Red    || Linear  || 50 gf     || 4 mm   || 2 mm      || None            || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 SMD RGB Brown.jpg|150px]] ||              || Brown  || Tactile || 60 gf     || 4 mm   || 2 mm      || None            || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 SMD RGB Blue.jpg|150px]]  ||              || Blue   || Clicky  || 60 gf     || 4 mm   || 2 mm      || Click collar    || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 Gold.jpg|150px]]          || PG151101D191 || Gold   || Clicky  || 60 gf     || 3.5 mm || 1.4 mm    || Click collar    || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 Bronze.jpg|150px]]        || PG151101D188 || Bronze || Clicky  || 50 gf     || 3.5 mm || 1.1 mm    || Click bar       || Mono T/H+SMD || No
|-
| [[File:Kailh PG1511 Silver.jpg|150px]]        || PG151101D189 || Silver || Linear  || 40 gf     || 3.5 mm || 1.1 mm    || None            || RGB T/H+SMD  || No
|-
| [[File:Kailh PG1511 Copper.jpg|150px]]        || PG151101D190 || Copper || Tactile || 40 gf     || 3.5 mm || 1.1 mm    || None            || RGB T/H+SMD  || No
|}

===Discontinued===
{| class="wikitable variants-table"
|-
!                                  !! Part no.     !! Colour !! Type    !! Actuation !! Travel !! Pretravel !! Click mechanism !! Illumination !! Fixing pins
|-
| [[File:Kailh PG1511 Yellow.jpg|150px]] || PG151101D02  || Yellow || Linear  || 50 gf     || 4 mm   || 2 mm      || None            || Monochrome   || No
|}

==Keyboards==
All switches assumed to be "Kailh" branded unless specified otherwise.

*Armageddon Strike Eagle MKI-3 (red)<ref name="DT-Armageddon-SE" />
*Genius M1 (red, linear)<ref name="GeniusM1" />
*Genius Quake 87:
**Blue<ref name="AliExpressBlueQ87" />
**Black<ref name="AliExpressBlackQ87" />
*Newmen GM-10 (blue, linear)<ref name="Newmen-GM10" />
*Nixeus MODA (brown, tactile)<ref name="NixeusMODA" />
*QPAD MK-10 (brown)<ref name="QPAD-MK10" />
*[[Rapoo KX]] (yellow, "PG1511" and "Kailh")
*[[Rapoo V7]] (yellow, "PG1511")
*[[Rapoo V500]] (yellow)
*Rosewill RGB80 (blue)<ref name="Rosewill-RGB80-blue" />
*Tesoro Lobera Supreme (brown)<ref name="Tesoro-Lobera-Supreme-brown" />
*Tesoro Tizona (red, brown, blue, black)<ref name="Tesoro-Tizona" />
*Some Tt eSPORTS Poseidon Z Illuminated (blue)<ref name="PoseidonZ" />
*ViewSonic V1 (red)<ref name="ViewSonicV1" />
*Xenics Scorpius M10TFL (red, brown, blue)<ref name="Xenics-M10TFL" />
*Zalman ZM-K500 (red)<ref name="rzwv-Kailh" />

===Unconfirmed===
Per [http://geekhack.org/index.php?topic=55671.0 List of Keyboards using Kailh switches]:

*Genius Quake 104
*Keycool KC87
*Shogun Bros Cross Blade ("Mixed Stroke" version)

==Gallery==
<gallery widths=250 heights=187>
File:凯华轴.jpg                                | Original switches
File:Rapoo V7 -- switches.jpg                  | "PG1511" switches in the [[Rapoo V7]]
File:Kaihua PG1511 Yellow -- disassembled.jpg  | "PG1511" switch disassembly
File:Kailh PG1511 RGB Blue and Blue.jpg        | Kaihua PG1511 RGB Blue (left) and Blue (right)
File:Kailh PG1511 RGB Blue with LED fitted.jpg | Kaihua PG1511 RGB Blue with RGB LED fitted
File:Kailh PG1511 RGB Blue with LED.jpg        | View of LED from below
File:Kailh PG1511 speed types.jpg              | Speed types
File:Kailh PG1511 gold and bronze opened.jpg   | Gold and bronze types, opened
</gallery>

==External links==
* Kailh — [http://www.kailh.com/gb/Newsdetail.asp?Newsid=37 红轴将被取代 Kailh黄轴大战Cherry轴] (Chinese only) — Detailed disassembly shots of PG1511 vs Cherry MX. Dated 2011-11-10. Retrieved 2015-07-28.

==References==
<references>
<!-- Specs -->
<ref name="Kailh-PG1511-RGB">Kailh — [http://www.kailh.com/gb/Productdetail.asp?Productid=1564 PG151101D91 RGB轴]</ref>
<ref name="Kailh-PG1511-classic">Kailh — [http://www.kailh.com/en/products.asp?Categoryid=113&rel=15 Kaihua keyboard switches]</ref>
<ref name="Kailh-PG1511-SMD">Kailh — [http://www.kailh.com/gb/Productdetail.asp?Productid=1585 PG1511 帖片轴]</ref>
<ref name="Kailh-PG1511-gold">[http://www.kailh.com/gb/Productdetail.asp?Productid=1589 PG151101D191 金轴]</ref>
<ref name="Kailh-PG1511-bronze">[http://www.kailh.com/gb/Productdetail.asp?Productid=1588 PG151101D188 厚金轴]</ref>
<ref name="Kailh-PG1511-silver">[http://www.kailh.com/gb/Productdetail.asp?Productid=1590 PG151101D189 银轴]</ref>
<ref name="Kailh-PG1511-copper">[http://www.kailh.com/gb/Productdetail.asp?Productid=1591 PG151101D190 铜轴]</ref>

<!-- Switch details -->
<ref name="DT-click-bar">[https://deskthority.net/photos-videos-f64/kaihua-kailh-click-bar-switches-t16319.html Kaihua Kailh click bar switches.]</ref>

<!-- Keyboards -->
<ref name="DT-Armageddon-SE">Deskthority — [http://deskthority.net/other-languages-f12/topic-t3977-30.html 日本語] (page 2)</ref>
<ref name="GeniusM1">Geekhack — [https://geekhack.org/index.php?topic=36652.msg700365#msg700365 Cheapest Mechanical Keyboard EVER?] Posted 2012-10-30. Retrieved 2015-07-28.</ref>
<ref name="AliExpressBlueQ87">AliExpress — [http://www.aliexpress.com/store/product/87-Keys-Full-Mechanical-Axis-Keyboard-8-Keys-Backlight-Gaming-Keyboard-Blue-Backlit-LED-Illuminated-Aluminium/337879_1465828784.html Buy Genius Mechanical Keyboard … 87 Keys Black Switch …]{{volatile}} Retrieved 2015-07-28.</ref>
<ref name="AliExpressBlackQ87">AliExpress — [http://www.aliexpress.com/store/product/Genius-Quake-87-Backlight-Mechanical-Gaming-Keyboard-Cyan-Switch-Shaft-Gamer-Keyboard-LED-illumination-Game-Keypad/337879_1716252684.html Buy Genius Mechanical Keyboard … 87 Keys Cyan Shaft …]{{volatile}} Retrieved 2015-07-28.</ref>
<ref name="Newmen-GM10">PCOnline — [http://acc.pconline.com.cn/mouse/reviews/1208/2886317_all.html 蓝轴也疯狂!冰点价新贵GM-10机械键盘评测] (Chinese only) Retrieved 2015-07-28.</ref>
<ref name="NixeusMODA">Newegg — [http://www.newegg.com/Product/Product.aspx?Item=N82E16823098001 Nixeus MODA Mechanical Keyboard (Brown Soft Tactile Switch) MK-BN14 Keyboard] Retrieved 2015-07-28.</ref>
<ref name="QPAD-MK10">PChome — [http://article.pchome.net/content-1739481-all.html 无与伦比 QPAD MK-10机械键盘首测] (Chinese only) Retrieved 2015-07-28.</ref>
<ref name="Rosewill-RGB80-blue">TweakTown — [http://www.tweaktown.com/reviews/6501/rosewill-rgb80-mechanical-16-8m-color-backlit-gaming-keyboard-review/index.html Rosewill RGB80 Mechanical 16.8m Color Backlit Gaming Keyboard Review] Dated 2014-07-09. Retrieved 2015-07-28.</ref>
<ref name="Tesoro-Lobera-Supreme-brown">MechKB Blog — [http://www.mechkb.com/blog/industry-developents/cherry-mx-rgb-tesoro-lobera/ Cherry MX RGB and Tesoro Lobera] Dated 2013-12-05. Retrieved 2015-07-28.</ref>
<ref name="Tesoro-Tizona">Tesoro — [http://www.tesorotec.com/tizona/ Tizona product page] Retrieved 2015-07-28.</ref>
<ref name="PoseidonZ">Tt eSPORTS — [http://ttesports.com/productPage.aspx?p=130&g=ftr POSEIDON Z Illuminated – Blue Switch Edition] Retrieved 2015-07-28.</ref>
<ref name="ViewSonicV1">AliExpress — [http://www.aliexpress.com/store/product/Viewsonic-viewsonic-v1-mechanical-keyboard-gaming-keyboard-usb-interface-keyboard/208755_801443206.html Buy Free Shipping Gaming Keyboard Fairy Genius k9 …]{{volatile}} Retrieved 2015-07-28.</ref>
<ref name="Xenics-M10TFL">Coolenjoy — [http://www.coolenjoy.net/bbs/boardc.php?id=review&no=18873&p=6 제닉스 SCORPIUS M10TFL 내부 (추가 스위치)] (Korean only) Dated 2014-02-06. Retrieved 2015-07-28.</ref>
<ref name="rzwv-Kailh">ちゃたりたいね — [http://kbd.rzw.jp/mechanical/zalman_zm-k500/ ZALMAN ZM-K500 Kailh赤軸] (Japanese only) Dated 2012-10-29. Retrieved 2015-07-28.</ref>
</references>

[[Category:Kailh switches]]
[[Category:Clones of Cherry MX switches]]
[[Category:Metal contact switches]]
[[Category:Clicky switches]]
[[Category:Tactile switches]]
[[Category:Linear switches]]
[[Category:RGB switches]]
[[Category:Production switches]]
[[Category:Illuminable switches]]
[[Category:List of all keyboard switches]]