Siemens KPY45R, KPY44R, KPY43R, KPY42R, KPY41R Datasheet

Silicon Piezoresistive
Relative Pressure Sensor

Features

• Low pressure and temperature hysteresis

• Fast response

• High sensitivity and linearity

• Fatigue free monocrystaline silicon diaphragm
giving high load cycle stability

• High long term stability

• Pressure coupled to rearside of silicon diaphragm

• Built in silicon temperature sensor

KPY 41-R

KPY 46-R

TO-8-4

Type and

Symbol Pressure Range Unit Ordering Code

Marking

KPY 41 R

P

… P

0

0 … 0.25 bar Q62705-K159

N

KPY 42 R 0 … 0.6 Q62705-K160
KPY 43 R 0 … 1.6 Q62705-K161
KPY 44 R 0 … 4 Q62705-K163
KPY 45 R 0 … 10 Q62705-K165
KPY 46 R 0 … 25 Q62705-K167

Pin Configuration

1 Capillary tube
2+
3 − V

V

IN

OUT

4 Temperature sensor

(typ.

R

= 2 kΩ)

25

5 Temperature sensor
6 −
7+V

V

IN

OUT

8 Not connected

Semiconductor Group 1 02.97

KPY 41-R
KPY 46-R

Absolute Maximum Ratings
Parameter Symbol Limit Value Unit

Pressure overload

Operating temperature range
Storage temperature range
Supply voltage

KPY 41 R
KPY 42 R
KPY 43 R
KPY 44 R
KPY 45 R
KPY 46 R

P

T
T
V

MAX

A

stg

IN

2
6
10
16
30
40

− 40 …+ 125 ˚C

− 50 …+ 150 ˚C

12 V

bar

Electrical Characteristics

at

T

= 25 ˚C and VIN = 5 V, unless otherwise specified.

A

Parameter Symbol Limit Values Unit

min. typ. max.

Bridge resistance
Sensitivity

KPY 41 R
KPY 42 R
KPY 43 R
KPY 44 R
KPY 45 R
KPY 46 R

R
s

B

4 − 8kΩ

mV/Vbar

16.8

11.0

5.6

4.0

1.8

0.88

24.0

15.0

8.8

6.0

2.6

1.2

32.0

24.0

12.5

9.0

4.0

2.0

Output voltage

V

KPY 41 R
KPY 42 R
KPY 43 R
KPY 44 R
KPY 45 R
KPY 46 R

Offset voltage

P = P

0

Linearity error (Best fit straight line)

P

= P0… P

0

N

KPY 41 … 45 R

V

F

KPY 46 R

Pressure hysteresis

P

= P0, P2 = PN,

1

P

= P

3

0

Semiconductor Group 2

KPY 41 … 46 R

P

fin

0

L

H

21
33
45
80
90
110

30
45
70
120
130
150

40
72
100
180
200
250

− 25 −+ 25

−± 0.15
± 0.15

± 0.35

−

−± 0.1 −

mV

mV

% V

V

%

fin

fin