©2016 Littelfuse, Inc.

Specifications are subject to change without notice.

Revision: 07/27/16

Low Capacitance ESD and Surge Protection - SP1255P Series

SP1255P Series

Package Dimensions — µDFN-6 (1.8x2.0x0.55mm)

JEDEC MO-229

Symbol

Millimeters

Inches

Min

Nom

Max

Min

Nom

Max

A

0.50

0.55

0.60

0.020

0.022

0.024

A1

0.00

-

0.05

0.000

-

0.002

A3

0.15 Ref

0.006 Ref

D

1.75

1.80

1.85

0.069

0.071

0.073

E

1.95

2.00

2.05

0.077

0.079

0.081

b

0.15

0.20

0.25

0.006

0.008

0.010

L

0.20

0.30

0.40

0.008

0.012

0.016

D2

0.35

0.45

0.55

0.014

0.018

0.022

E2

0.74

0.84

0.94

0.029

0.033

0.037

e

0.40 BSC

0.016 BSC

e1

0.80 BSC

0.031 BSC

B

0.80 BSC

0.031 BSC

C

0.35

0.45

0.55

0.014

0.018

0.022

F

0.81

0.84

0.87

0.032

0.033

0.034

G

0.82

0.85

0.88

0.032

0.033

0.034

J

0.24

0.25

0.26

0.010

0.010

0.010

N

0.47

0.48

0.49

0.018

0.019

0.020

P

0.24

0.25

0.26

0.010

0.010

0.010

X

0.23

0.24

0.25

0.009

0.009

0.009

Y

0.35

0.36

0.37

0.014

0.014

0.014

Z

0.62

0.64

0.66

0.024

0.025

0.026

Top View

Bottom View

Side View

Recommended

Soldering

Footprint

G

F

Y

P

B

C

N

J

X

Z

Notes:

1. Dimension and tolerancing comform to ASME Y14.5M-1994.

2. Controlling dimensions: Millimeter. Converted Inch dimensions are not necessarily

exact.

Embossed Carrier Tape & Reel Specification — µDFN-6

Symbol

Millimeters

A0

1.95 +/- 0.05

B0

2.30 +/- 0.05

D0

1.50 + 0.10

D1

Ø 0.60 + 0.05

E

1.75 +/- 0.10

F

3.50 +/- 0.05

K0

0.75 +/- 0.05

P0

4.00 +/- 0.10

P1

4.00 +/- 0.10

P2

2.00+/-0.05

T

0.25 +/- 0.02

W

8.00 + 0.30 /- 0.10

P2

D0

E

F

P1

P0

D1

W

T

B0

K0

A0

5

5

9.04

Pin1 Location

Surge Protection - SP1255 Series