Raychem Corporation

300 Constitution Drive

Menlo Park, CA 94025

800-227-4856

FAX 800-227-4866

R

PolySwitch®

PTC Devices

Overcurrent Protection Device

PRODUCT: microSMD110

DOCUMENT: SCD24404

PCN: 848919

REV LETTER: D

REV DATE: FEBRUARY 26, 2000

PAGE NO.: 1 OF 1

Specification Status: Released

Maximum Electrical Rating

Current: 40A

Notes:

1. All terminations are tin/lead plated.

2. Devices can be wave soldered.

3. Drawing not to scale

Marking:

TABLE I. DIMENSIONS:

A

B

C

D

E

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MIN

mm:

3.00

3.43

2.35

2.80

0.28

0.48

0.25

0.20

in:*

0.118 0.135

0.092

0.111

0.011

0.019

0.010

0.008

*Rounded off approximation

TABLE II. PERFORMANCE RATINGS:

IHOLD **

RATED

CURRENT

CURRENT TRIP LIMITS**

TIME TO

TRIP **

RESISTANCE

VALUES

TRIPPED-

STATE POWER

DISSIPATION**

AMPERES

AT 20°C

AMPERES

AT -40°C

AMPERES

AT 20°C

AMPERES

AT 60°C

SECONDS

AT 20°C, 5A

SECONDS

AT 20°C, 8A

OHMS

AT 20°C

WATTS AT

20°C, 6V

HOLD

HOLD TRIP HOLD

TRIP HOLD TRIP

MAX

MAX

MIN

MAX*

MAX

1.10

1.60

3.20

1.10

2.20

0.80

1.60

1.0

0.2

0.07

0.21

0.8

*Maximum resistance is measured 1 hour after reflow.

** Values specified were determined using PCB’s with 0.030”X1.5 ounce copper traces.

Reference Documents:

PS300, E. N. SMD1.0x

Precedence:

This specification takes precedence over documents referenced herein.

Effectivity:

Reference documents shall be the issue in effect on the date of invitation for bid.

CAUTION:

Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.