Discover Kemet's PIR Sensor products!

1. Presence Detection: Hidden PIR sensing for external
design focused applications
PIR sensing is a topic that is utilized in every home or industrial
ambient and is nothing new. Hidden PIR sensing is new and the next
step in PIR presence detection, think about a sensor behind a
nontransparent plastic surface detecting the presence of someone in
front of the device… in SMD
SMD

2. Presence detection
• How does presence detection work with PIR ?
• What is the difference of the KEMET / TOKIN PIR sensor ?
• Application examples
• Further support for PIR sensing

3. Function of Pyroelectric infrared Sensor (PIR)
Time
Electric charge
is generated by
absorbing
thermal energy.
The charge is
proportional to
polarization
change

4. Enhanced pyroelectric infrared sensors (PIR)
Lens-less Pyroelectric Infrared Sensor
Key features
• Detectable human through resin or glass
• Compact & low profile (5 x 4.8 x 1.7mm)
• SMD Reflow compatible
SMD
2m detection distance
(polyethylene plate)
Measuring condition:
• Transfer velocity:1m/s
• Heat source size:
170×70mm (hand size)
• Temperature difference: Δ10°C
• Each material thickness:
1mm(Clear color)

5. Detection options
gesture vs. presence detection

6. Feature of Pyroelectric Infrared Sensor-1
Standard distance
Middle distance
with lens
Through Chassis
(Resin or Glass)
Through
Polyethylene
Pyro
Sensor
Polyethylene
1~2m
Resin or Glass
With Lens
Can select type of sensor such as lens type or lens-less type based on detecting
distance and application. It is good for inconspicuous lens design and for design
focusing application.
HDPE (High Density Polyethylene)
is Infrared-transparent material
Detection level depends on type of
material, color, material thickness and
So on.

7. Detecting option
Detecting distance
~20cm ~2m ~5m
Cover
material (Penetration)
Glass, Acrylic, ABS (1mm) HDPE (t=1mm) Flat lens fixed to chassis
Sensor
PL-N823-01
Module type
Less than 2m
No lens necessary
Long distance
Flat lens type
+
Available already
Within 2018
samples on hand
UD
UD

8. Technical specifications - PL-N823-01
Top view dimensions [mm]
Footprint [mm]

9. Electrical connections
Footprint [mm]
Bottom view [mm]
Key advantages
• Easy to use (Supply voltage 2…15 VDC)
• Small, thin & SMD type
• 120° detection angle horizontal & vertical
• No malfunction with mobile communication

10. Working angle specification
.BACC C A .BACC C A - -
5A B8
CAB : A 8B 8 2 1 20 3 )
2BA A 8 (
P/N Color of lens
---------------------------------------
PL-001L-W: White
PL-001L-BK: Black
PL-001L-N: Natural
/AB A 8 7 B 8
)H H
Under developmentFlat lens of TOKIN Pyroelectric sensor module Field of view
Projection view
Product
Dimension

11. Sustainability specification (no disturbance)
Excellent radio wave performance in high frequency band (Wi-Fi / 5GHz)
Test method & condition Test result
50 50
- .
Item Detail Note
Wi-Fi built-in
Equipment
ipad
iphone
5GHz Frequency
band
(IEEE802.111)
Sensor distance from
communications equipment
50mm
Circuit amplification factor 8000
(1Hz)
1 level
( ( ( ( -
PL-N823-01
Conventional
model
Digital output
Analog output
Unconnecte
d
Connecte
d
Signal was
disturbed
(Malfunction
Signal was stable
(Normal function)
Digital output
Analog output
Unconnected
Connecte
d

12. Comparison with competitors
Tokin New Product Competitor A Competitor B
Appearance
P/N: PL-N823-01
Dimension
5.0x4.8x1.7mm
(world thinnest)
Φ9.2x4.5mm 4.7x4.7x2.4mm
Type SMD THT SMD
Lens
Not necessary
(TOKIN patent*)
Necessary
(15.0mm lens height)
Necessary
(7.2mm lens height)
Adaptable chassis
material
Polyethylene
Glass, Acrylic, ABS
Polyethylene Polyethylene
mandatorymandatory
Lens
Lens

13. Promotional items and roadmap
• Evaluation board (within 2018)
• PL-N823-01 already available
• Version with lenses will become available soon
• High service distribution will have stock soon

14. G
et contact