Proximity Sensors
PL Pyroelectric Infrared Sensors
Overview
KEMET’s Pyroelectric Infrared Sensors use the pyroelectric
effect of ceramic by absorbing infrared rays emitted from
the human body. This detects the natural infrared signature
produced by humans. Also, it can detect infrared rays
without using lenses.
Due to the absence of a lens, KEMET’s Pyro Sensor is low
profile, as it does not protrude, which makes it ideal for
gathering visual requirements. With KEMET’s proprietary
piezoelectric ceramic material and element structure of
the Pyroelectric Infrared Sensor, humans can be detected
through glass or resin. This allows more freedom in the
design of the outer appearance of the end product.
Applications
Typical applications include human presence detection
sensing for energy saving functions in:
• Contact less switching
• Office automation equipment
• Home appliances
• Lighting
• Display products
• Air-conditioners
• TV
• PC monitors
• Rice cookers
• Smart toilets
Benefits
• Reflow capable SMD configuration
• Lens not required
• A lens can be attached to the sensor
• Wide view angle up to ±60 degrees (lensless)
• View angle up to ±37/±28 degrees (with lens)
• Detection possible through glass or resin
• Low power consumption, down in the μA range
• Excellent radio wave performance in high-frequency band
• Compact and low profile (5.0 x 4.8 x 1.7 mm)
Sensor - Front
Sensor - Back
Natural Lens
White Lens
Black Lens
One world. One KEMET
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
SE0206_PL • 3/19/2020
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Proximity Sensors – PL Pyroelectric Infrared Sensors
Ordering Information
PL-
Series
PL
1
N
Lens Type
1
N = No lens
Q = With lens
823-
Sensor Type
823
873
01
Serial Number
01
02
With lens type is not including the lens itself, to be selected separately, see below.
PL-
Series
PL
001L-
Lens Type
001L
N
Color Type
BK = Black
N = Natural
W = White
Performance Characteristics
Measuring Method
Heat source
Horizontal angle (°)
Sensor
Detected Distance (m)
(m)
−22.5°
−45°
3
2.5
2
1.5
−67.5°
1
0.5
−90°
0
90°
67.5°
45°
0°
22.5°
⊿5°C
⊿10°C
⊿20°C
⊿25°C
Sensor
∆T (°C) = Difference between room temperature and heat source temperature
-135
-158
-180
158
135
-113
113
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
SE0206_PL • 3/19/2020
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Proximity Sensors – PL Pyroelectric Infrared Sensors
Performance Characteristics cont.
PL-001L-N - Field of View (Unit: m)
±37°
±28°
Horizontal View
PL-001L-N - Projection View
Vertical View
Projection View at 5 m
Unit: m
Detecting Performance with Different Materials
1.8
1.6
Output Voltage [VO-p]
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
5
10
15
20
Detecting Distance [cm]
25
Cannot detect
30
35
Can detect
Threshold
Glass
Glass (Gorilla®)
ASB
Acrylic
Polycarbonate
Sensor Detection Area (P/N: PL-Q873-02)
Unit: mm
Measuring conditions:
Transfer velocity - 1 m/s
Heat source size - 170×70 mm (relative to hand)
Temperature difference - Δ10°C
Each material thickness - 1 mm (clear color)
SE0206_PL • 3/19/2020
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© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Proximity Sensors – PL Pyroelectric Infrared Sensors
Dimensions in mm
Sensor - Dimensions in mm
5
4.4
(4)
(3)
1.75
4.8
4.2
(1)
(2)
1.2
3.3
GND
(1)
(2)
V
out
(Source)
Sensor - Pin Assignment
1.75
1.7
Sensor - Land Pattern in mm
Pin Number
1
2
3
Pin Name
GND
V
out
(Source)
V
in
(Drain)
GND
4.5
1 pin mark
GND
(4)
1.2
3.3
(3)
V
in
(Drain)
4
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
SE0206_PL • 3/19/2020
4.7
4
Proximity Sensors – PL Pyroelectric Infrared Sensors
Dimensions in mm cont.
Lens - Dimensions in mm
6.6
5.6
C0.7
6
7.0
6.0
A
A
4-
R0
.3
Lens Area with Crack
3
1
2
4
5
3-
R0
.5
B
3.87
1.0
Sensor and Lens Mounting Direction
5.0
B
−
B
2.0
4.8
A
−
A
2.0
B
2.0
0
2-Ø
.6
C Plane
of Lens
Data Code
Printing
of Sensor
Standard Position of Sensor
Top View
3.3
3.3
3.3
3.3
Side View
PCB Hole Dimension
5.6
3.5
PCB
3.5
5.8
2-Φ0.8TH
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
SE0206_PL • 3/19/2020
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