Bipin
From Wikipedia, the free encyclopedia
A bipin, (sometimes referred to as 2 pin, bipin cap or bipin socket), is a standard from the IEC for lamps. Some lamps have pins placed closer together, preventing them from accidentally being interchanged, which are sometimes called mini-bipin.
[edit] Bipin codes
| Type | Standard | Pin centre to centre | Pin diameter | Usage |
|---|---|---|---|---|
| G4 | IEC 60061-1 (7004-72) | 4.0 mm | 0.65-0.75 mm | MR11 and other small halogens of 5/10/20 watts and 6/12 volts |
| GU4 | IEC 60061-1 (7004-108) | 4.0 mm | 0.95-1.05 mm | |
| GY4 | IEC 60061-1 (7004-72A) | 4.0 mm | 0.65-0.75 mm | |
| GZ4 | IEC 60061-1 (7004-64) | 4.0 mm | 0.95-1.05 mm | |
| G5 | IEC 60061-1 (7004-52-5) | 5 mm | T4 and T5 fluorescent tubes | |
| G5.3 | IEC 60061-1 (7004-73) | 5.33 mm | 1.47-1.65 mm | |
| G5.3-4.8 | IEC 60061-1 (7004-126-1) | |||
| GU5.3 | IEC 60061-1 (7004-109) | 5.33 mm | 1.45-1.6 mm | |
| GX5.3 | IEC 60061-1 (7004-73A) | 5.33 mm | 1.45-1.6 mm | MR16 and other small halogens of 20/35/50 watts and 12/24 volts |
| GY5.3 | IEC 60061-1 (7004-73B) | 5.33 mm | ????? mm | |
| G6.35 | IEC 60061-1 (7004-59) | 6.35 mm | 0.95-1.05 mm | |
| GX6.35 | IEC 60061-1 (7004-59) | 6.35 mm | 0.95-1.05 mm | |
| GY6.35 | IEC 60061-1 (7004-59) | 6.35 mm | 1.2-1.3 mm | |
| GZ6.35 | IEC 60061-1 (7004-59A) | 6.35 mm | 0.95-1.05 mm | |
| G9 | IEC 60061-1 (7004-129) | 9.0 mm | ||
| GU10 | 10 mm | 120-volt halogen lighting, since mid-2000s | ||
| G13 | 12.7 mm (½ in.) | T8 and T12 fluorescent tubes | ||
| G23 | 23 mm | 2 mm |
The suffix after the G indicates the pin size. GU also indicates that each pin has two diameters, being larger near the ends, in order to twist-lock into position in the socket. (The transition between the two diameters is a right-angle step rather than a taper.) There are also double-ended bipin tubes (both halogen and fluorescent, with one pin at each end) which are not covered here.
