*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

STS Series - Ultraminiature Tactile Switch

Features

■

Available sharp click feel with a positive

tactile feedback

■

Ultraminiature and lightweight structure

suitable for high density mounting

■

Economical

■

Reliable

■

RoHS compliant*

Electrical Characteristics

Electrical Life

................50,000 Cycles for 160 gf, 320 gf

Rating...................................50 mA, 12 VDC

Contact Resistance.................100 mΩ max.

Insulation Resistance

...........................100 MΩ min. @ 500 VDC

Dielectric Strength ...........250 VAC/1 minute

Contact Arrangement ..........................SPST

Environmental Characteristics

Operation Temperature Range

........................................-25 °C to +70 °C

Storage Temperature Range

........................................-30 °C to +80 °C

Vibration Test

MIL-STD-202F Method 201A

Frequency ...............10-55-10 Hz/1 minute

Directions

...........X,Y,Z, three mutually perpendicular

directions

Time ..........................2 hours each direction

Shock Test

MIL-STD-202F Method 213B

Condition A

Gravity ............50 G (peak value), 11 msec

Direction and Times ....6 sides and 3 times

in each direction

Physical Characteristics

Cover Materials.....................Stainless Steel

Base Materials .....................UL94V-0 Nylon

Thermoplastic

Actuator ...............................UL94V-0 Nylon

High-Temperature Thermoplastic

Contact Disc .........................Stainless steel

with silver cladding

Terminals .............Brass with silver cladding

Product Dimensions

6.0

(.236)

3.5

(.138)

7.4

(.291)

3.4

(.134)

7.2

(.283)

3.0

(.118)

STSM

1.5

(.059)

1.0

(.039)

3.5

(.138)

0.9

(.035)

0.5

(.020)

MAX.

0.05

(0.002)

MAX.

PCB LAYOUT

H ± 0.2

(H ± .008)

1.6

(.063)

How to Order

STS M - 3 1 - S TR

Model

Style

M = Surface Mount “J” Style

G = Surface Mount “G” Style

H = Through-hole “H” Style

Product Size

3 = 3.5 mm wide x 6 mm long

Height

1 = 4.3 mm

2 = 5.0 mm

Color of Stem for Actuating Force

N = Brown, 160 g

R = Red, 260 g

S = Salmon, 320 g

Y = Yellow, 520 g

Packaging Option

__ = Std. Packaging - 135 pcs./tube

TR = Tape & Reel Packaging -

31 - 1800 pcs./reel (STSM & STSG only)

32 - 1600 pcs./reel (STSM & STSG only)

Circuit Diagram

T1

T2

DIMENSIONS ARE:

MM

(INCHES)

TOLERANCES: ± 0.2 (.008)

Reflow Soldering Profile

Time

120-150

Sec.

60

Sec. Max.

5-10

Sec.

1-cycle reflow

250

Max. 255

230

150

Room

Temp.

6.0

(.236)

3.5

(.138)

9.5

(.374)

6.4

(.252)

9.0

(.354)

3.0

(.118)

STSG

1.5

(.059)

1.0

(.039)

3.5

(.138)

0.5

(.020)

MAX.

0.05

(0.002)

MAX.

PCB LAYOUT

H ± 0.2

(H ± .008)

1.6

(.063)

The STS Series is currently available,

although not recommended for new

designs.