Half-Height Optical Drive (DVD Drive), SFF-8551

The Half-Height mm optical drive (SFF-8551) is up to 41.53 mm high, 146.05 mm wide and up to 202.8 mm long, with side holes 79.25 mm apart; bottom holes 139.7 mm apart across. Modeled as simplified and threaded STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: Half-Height device
• Model id: bay-5-25-half-height
• Standard: SFF-8551:Rev 3.3 · size Half-Height

Files

Part key	Simplified	Threaded
bay-5-25-half-height	STEP	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
H	Body height			41.53	41.53	single limit (max), modeled at the limit	L2
L	Body length behind the bezel			202.8	202.8	single limit (max), modeled at the limit	L2
W	Body width	145.8	146.05	146.3	146.05	nominal	L2
Hb	Bezel height		42.3		42.3	nominal	L2
Wb	Bezel width		148		148	nominal	L2
tb	Bezel thickness		5		5	nominal	L2
tf	Bezel front extent		6.5		6.5	nominal	L2
yb2	Bottom holes across		139.7		139.7	nominal	L2
yb	Bottom hole from the side		3.18		3.18	nominal	L2
xb1	First bottom holes from the bezel		47.4		47.4	nominal	L2
pb	Bottom holes apart		79.25		79.25	nominal	L2
xs1	First side holes from the bezel		47.4		47.4	nominal	L2
ps	Side holes apart		79.25		79.25	nominal	L2
hs	Side hole height		10		10	nominal	L2
hs2	Upper side hole height		21.84		21.84	nominal	L2
cw	Connector overall width		42.73 ref		42.73	reference value	L2
cs	Connector datum B width		33.39 ref		33.39	reference value	L2
cb	Side to the connector		31.34 ref		31.34	reference value	L2
cy	Connector offset from the device centreline		25		25	nominal	L2
cz	Connector height above the bottom	9.62	10	10.38	10	nominal	L2
ch	Connector housing height		4 ref		4	reference value	L2
cc	Connector end to datum C		4.9		4.9	nominal	L2

Drawing

As a PDF: CC-BAY525-SZ-half-height.pdf.

Documents

• CC-BAY525-DS-half-height.pdf: half-height datasheet: values with levels, sources
• CC-BAY525-SZ-half-height.pdf: half-height drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

sff8523-r1-4, sff8551-r3-3. Full citations: the method page and this size's datasheet.

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