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Universal Serial Bus Specification Revision 1.1

6.5.2 USB Connector Termination Data

Table 6-1 provides the standardized contact terminating assignments by number and electrical value for Series “A” and Series “B” connectors.

Table 6-1. USB Connector Termination Assignment

Contact

Signal Name

Typical Wiring

Number

Assignment

 

 

 

 

1

VBUS

Red

 

 

 

2

D-

White

 

 

 

3

D+

Green

 

 

 

4

GND

Black

 

 

 

Shell

Shield

Drain Wire

 

 

 

6.5.3 Series “A” and Series “B” Receptacles

Electrical and mechanical interface configuration data for Series "A" and Series "B" receptacles are shown in Figure 6-7 and Figure 6-8. Also, refer to Figure 6-12, Figure 6-13, and Figure 6-14 at the end of this chapter for typical PCB receptacle layouts.

82

Universal Serial Bus Specification Revision 1.1

H

G

F

E

D

C

B

A

8

7

6

5

4

3

2

1

 

 

USB Series "A" Receptacle Interface

 

 

 

 

 

 

 

 

12.50 ± 0.10

 

 

 

A

 

C

 

11.10 ± 0.10

 

 

 

 

 

 

 

 

 

 

8.88 ± 0.20

Center Line

1.84 ± 0.05

R 0.64 ± 0.13 (Typical)

 

 

B

R 0.32 ± 0.13 (Typical)

 

 

8.38 ± 0.08

 

 

 

 

0.50 ± 0.10

B

 

 

 

 

 

 

300 ± 20 (2)

 

1

2 3

4

 

 

 

5.12 ± 0.10

 

 

 

 

 

0.38 ± 0.13

 

 

 

 

4.98 ± 0.25

Printed Circuit Board

4.13 REF

All dimensions are in millimeters otherwise noted.

 

Center Line of 5.12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.64 ± 0.13 (8)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receptacle Contact

 

 

1.00 ± 0.05 (2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contact Point

 

 

 

 

3.50 ± 0.05 (2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.00 ± 0.05 (4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

m( m ) unless

 

 

 

 

 

 

C

Center Line

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB Series "A" Receptacle and Plug

Mating Features

Fully Mated Series "A"

 

Receptacle and Plug

 

 

 

 

0.50 ± 0.10 (2)

 

 

 

 

 

 

 

 

 

 

 

 

300 ± 20 (2)

 

 

 

 

 

 

Boot

 

 

 

 

 

 

 

 

Overmold

8.0 MAX

 

 

 

 

 

 

 

 

 

 

 

 

Receptacle Flange

 

 

 

 

 

 

 

1

2.67 MIN

 

 

Interface and Mating Drawing

 

 

 

 

 

1

Allow a minimum spacing of 2.67mm between

 

Series "A" Receptacle

the face of the receptacle and the plug

 

 

 

 

 

 

 

 

 

 

overmold boot.

 

 

 

SIZE

DATE

DRAWING NUMBER

REV

 

 

 

 

 

A

2/98

N/A

C

 

 

 

 

 

SCALE:

N/A

SHEET

1 of 1

8

7

6

5

4

3

 

2

1

H

G

F

E

D

C

B

A

Figure 6-7. USB Series "A" Receptacle Interface and Mating Drawing

83

Universal Serial Bus Specification Revision 1.1

8

7

6

5

4

3

2

1

USB Series "B" Receptacle Interface

H

 

A

 

 

8.45 + 0.10

 

H

 

 

 

 

 

 

 

8.88 + 0.20

 

 

 

 

 

 

 

 

5.60 + 0.10

 

 

 

 

8.38 + 0.08

 

C

1.63 + 0.05 (2)

 

 

 

 

 

 

 

 

Receptacle Contact

450 +

0.50

(2)

 

 

 

 

 

 

 

 

 

 

 

 

300 +

20 (4)

 

 

 

B

 

G

 

 

2

1

7.78 + 0.10

G

 

 

 

 

 

 

 

B

Center Line

 

 

 

 

 

3.18 + 0.05

 

 

 

 

 

 

3

4

0.80 + 0.08

 

 

 

3.67 + 0.08

 

 

 

 

 

 

 

 

 

 

 

0.38 + 0.13 (4)

 

 

 

 

F

 

R 0.38 (6)

 

 

 

3.67 Center Line

F

 

 

 

 

 

 

 

4.98 + 0.25

Contact Point

 

 

 

 

 

 

 

 

 

 

 

 

 

1.00 + 0.05 (4)

 

 

1.25 + 0.10 (4)

 

 

 

 

 

C

Center Line

 

 

 

 

Receptacle Housing

 

 

 

E

 

300 + 20

(2)

 

 

 

E

B

Center Line

 

 

 

 

 

 

 

 

 

 

 

 

All dimensions are in millimeters (m m )

 

 

 

 

 

 

unless otherwise noted.

 

 

 

0.50 + 0.10 (2)

 

 

 

 

D

 

Receptacle Shell

 

 

 

D

 

 

 

 

 

 

USB Series "B" Receptacle and Plug Mating Features

C

 

Boot

 

 

 

 

Boot

 

C

 

 

 

 

 

 

 

 

 

 

Overmold

10.5 MAX

 

 

 

Overmold

11.5 MAX

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

B

 

2.67 MIN

1

 

 

 

 

 

 

 

 

 

 

 

Interface and Mating Drawing

 

Receptacle Shell

 

 

 

 

 

 

 

 

 

 

A

Fully Mated Plug and Receptacle

 

USB Series "B" Receptacle

 

 

 

 

 

 

 

 

A

1

Allow a minimum spacing of 2.67mm between the

 

SIZE

DATE

D R A W I N G N U M B E R

REV

face of the receptacle and the plug overmold boot.

 

A

2/98

 

N/A

C

 

 

SCALE:

N/A

 

SHEET

1 of 1

 

 

 

 

 

 

8

7

6

5

4

3

 

2

 

1

Figure 6-8. USB Series "B" Recptacle Interface and Mating Drawing

84

Universal Serial Bus Specification Revision 1.1

6.5.3.1 Receptacle Injection M olded Thermoplastic Insulator Material

Minimum UL 94-V0 rated, thirty percent (30%) glass-filled polybutylene terephthalate (PBT) or polyethylene terephthalate (PET) or better.

Typical Colors: Black, Gray and Natural.

Flammability Characteristics: UL 94-V0 rated.

Flame Retardant Package must meet or exceed the requirements for UL, CSA, VDE, et cetera.

Oxygen Index (LOI): Greater than 21%. ASTM D 2863.

6.5.3.2Receptacle Shell Mate rials

Substrate Material: 0.30 + 0.05 mm phosphor bronze, nickel silver or other copper based high strength materials.

Plating:

1.Underplate: Optional. Minimum 1.00 micrometers (40 microinches) Nickel. In addition, manufacturer may use a copper underplate beneath the nickel.

2.Outside: Minimum 2.5 micrometers (100 microinches) Bright Tin or Bright Tin-Lead.

6.5.3.3Receptacle Contact M aterials

Substrate Material: 0.30 + 0.05 mm minimum half-hard phosphor bronze or other the high strength copper based material.

Plating: Contacts are to be selectively plated.

A.Option I

1.Underplate: Minimum 1.25 micrometers (50 microinches) Nickel. Copper over base material is optional.

2.Mating Area: Minimum 0.05 micrometers (2 microinches) Gold over a minimum of 0.70 micrometers (28 microinches) Palladium.

3.Solder Tails: Minimum 3.8 micrometers (150 microinches) Bright Tin-Lead over the underplate.

B.Option II

1.Underplate: Minimum 1.25 micrometers (50 microinches) Nickel. Copper over base material is optional.

2.Mating Area: Minimum 0.05 micrometers (2 microinches) Gold over a minimum of 0.75 micrometers (30 microinches) Palladium-Nickel.

3.Solder Tails: Minimum 3.8 micrometers (150 microinches) Bright Tin-Lead over the underplate.

C.Option III

1.Underplate: Minimum 1.25 micrometers (50 microinches) Nickel. Copper over base material is optional.

2.Mating Area: Minimum 0.75 micrometers (30 microinches) Gold.

3.Solder Tails: Minimum 3.8 micrometers (150 microinches) Bright Tin-Lead over the underplate.

85

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