field disappears, the reeds separate and disconnect
(switch off).
SE0201_TRS • 3/27/2017
2
Perm
Saturation ma
1500
1000
500
0
TC＝90
TC＝60
TC＝30
TC＝150
2000
1000
0
TC＝120
Sensors – TRS™ Series Thermal Reed Switch
0
20
40
60
80
100
120
140
160
0
20
40
60
80
100
120
140
160
Temperature ℃）
（
Temperature ℃）
（
Structures and Principles of Operation cont’d
Reed Switch Structure
Structure of reed switch
• The reed switch is a contact switch comprised of a
comprised of a
alloy
◆
Reed switch is contact switch
pair of Fe-Ni
pair of
reeds encased in a glass
Fe-Ni
with inactive gas.
in glass tube
are switched
tube
alloy reeds encased
The reeds
on or off by the magnetic
with inactive gas. The reeds are switched on
coil.
field of a permanent magnet or magnet
or off
by magnetic field of permanent magnet or magnet
• The reeds in the glass tube become magnetized from the magnetic field,
coil.
allowing the two reeds
◆
Long lifetime,
and connect (switch on). When
to make contact
High environmental resistance
because of protected contact by glass encasing.
the magnetic field disappears, the reeds separate and disconnect (switch
◆
Reeds in glass tube become magnetized with
off).
magnetic field, and then two reeds contact and
• The glass encasement of
connect each other (switch on). And then magnetic
the reeds ensures high environmental
field disappears,
resistance and a long operational life.
the reeds separate and disconnect
(switch off).
Encasing
Glass tube
TC=Curie temperature
Inactive gas
Contact
Fe-Ni alloy reed
N
S
N
S
S
N
TRS principle : Break (B) type
TRS principle: Break (B) type
Reset ：Reed switch
Action temperature
（
■
：Permanent magnet ■
：Thermorite
®
■temperature contact area ）
Reset temperature
Action temperature
TRS principle : Break (B) type
（
■
：Permanent magnet ■
：Thermorite
®
■
：Reed switch contact area ）
Low temperature
Low temperature
Thermal magnet = paramagnet
Thermal magnet = paramagnet
High temperature
High temperature
Thermal magnet = NO magnetic
Thermal magnet = NO magnetic
NEC TOKIN Sensors Vol.14 5
N
N
S
S
N
N
S
S
N
N
S
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
S
N
S
N S
N S
N
●Please request for a specification sheet for detailed product data prior to the purchase.
N
N S
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●All specifications productcatalog catalog, please read "Precautions" are subjectsafety precautions listed in Priorprinted version catalog. contact NEC TOKIN for updated product data.
●Before using the in this in this and production status of products and other to change without notice. the to the purchase, please
External magnetic field
Sensors – TRS™ Series Thermal Reed Switch
TRS/OHD installation direction in external magnetic field
External magnetic field
Magnetic field from equipment
External Magnetic Field
Magnetic field emitting equipment
such as motors, coils
TRS/OHD installation
in external
external magnetic field
TRS installation
direction in
magnetic field
Magnetic field from equipment
Wrong direction Correct direction
N
N
S
Magnetic field emitting equipment
such as motors, coils
Wrong direction Correct direction
N
N
S
N
N
S
S
S
S
Magnet inside TRS is
parallel to the external field
→ Greater Influence
N
S
Magnet inside TRS is
perpendicular to the external field
→ Less influence
N
S
Magnet inside TRS is
parallel to the external field
→ Greater Influence
Magnet inside TRS is
perpendicular to the external field
→ Less influence
Ferromagnetic material influence
3
Ferromagnetic material influence
Operation temperature variation
(°C)
2
Ferromagnetic material influence
1
0
－1
－2
－3
－4
－5
Operation temperature variation
(°C)
3
2
1
0
－1
－2
0
－3
－4
－5
0
2
4
2
4
6
8
10
12
Gap distance_d
（mm）
14
16
BType
MType
TRS
BType
MType
d
Soft iron (thickness 3.3mm)
Note; Above figures are for reference only and are not guarantee
d values.
d
TRS
TM
Before Using Thermal Reed Switch (TRS
figures are for
)
reference only and are not guarantee
d values.
Environmental Compliance
Note; Above
• Please ask for a copy of specification and check the contents thoroughly before the actual use.
• Please
TRS sensors are
deciding your specifications.
All
contact us before
RoHS compliant.
• Do not use in close proximity to strongly magnetized parts.
TM
Before
if dropped or
Reed Switch (TRS
)
• Do not use
Using Thermal
strongly shocked.
• Please with greater of specifi specified.
• Do NOT useask for a copyload thancation and check the contents thoroughly before the actual use.
W h•ePlease lcontact se swi tchedeciding iyour one to cations.ng surge vol tage ( i nducti ve l oad) or rush current
n i nsta l i ng theus before s i n ci rcu ts pr specifiproduci
•
RoHS Compliant
proximity to strongly magnetized parts.
Do not use in close
(in lamps and motors), an appropriate switch type should be used, or a contact point protection circuit added.
• d s ress ( es if dropped i o strongly of addi ti
• A voiDotnot usepeci al l y torsorn) i n case shocked.onal processi ng.
• reed switch has specifi load than specified.
• EachDo NOT use withagreaterc resonance frequency. Please contact us when an oscillation is added.
W hen i nstal l i ng these swi tches i n ci rcui ts prone to produci ng surge vol tage ( i nducti ve l oad) or rush current
(in lamps and motors), an appropriate switch type should be used, or a contact point protection circuit added.
• A voi d stress ( especi al l y torsi on) i n case of addi ti onal processi ng.
NEC TOKIN Sensors Vol.14
7
• Each reed switch has a specific resonance frequency. Please contact us when an oscillation is added.
6
8
10
12
Gap distance_d
（mm）
14
16
Soft iron (thickness 3.3mm)
cifications in this catalog and production status of pr
o
request for a specification sheet for detailed product
d
using the product in this catalog, please read "Precau
t
ducts are subject to change without notice. Prior to the purch
a
ata prior to the purchase
.
ions" and other safety precautions listed in the printed versi
o
NEC TOKIN Sensors Vol.14
7
se, please contact NEC TOKIN for updated product .data
n catalog
.
All specifications in this catalog and production status of pr
o
Please request for a specification sheet for detailed product
d
Before using the product in this catalog, please read "Precau
As the title says, I am looking for the agent of Songhan SN8P2501DSG chip. Does anyone know a Songhan agent? Or if you have an agent, please leave your contact information. Thank you!...
1. Download necessary software(1) Compilation software Mounriver (required)Download address: http://mounriver.com/
(2) WCH-ISP (optional) , this is the Qinheng MCU series chip program burning software...
When I use the STM32F103RCT6to compare the output of the timer, the initialization is set, the interrupt is enabled, and the timer is not enabled. Whenarr psc DutyRatio are all zero and assigned,TIM3-...
[i=s]This post was last edited by 29447945 on 2020-8-31 19:55[/i]We need to use the connection to download the server's files. Here we use openresty to build a file server;
First we need to download o...
In the 8051 system, the data pointer DPTR is used as a special 16-bit register for addressing the 64 KB XDATA or CODE space. It is usually used as a 16-bit pointer pointing to a constant table. Doubl...[Details]
Since the CDROM itself only has one play button, it is not very convenient to use.
Decided to add a remote control to this CDROM to achieve:
1. Automatically play after inserting the disc...[Details]
Central topics:
Application of Multivibrator in Car Air Freshener
Solution:
Component Selection
Select two time base circuits CB555
Choose a dual time base circui...[Details]
Solar energy is a green energy source with huge reserves and sustainable use. Recently, Spanish researchers have developed a solar power plant with energy storage that can generate electricity day ...[Details]
Haojue 125 motorcycle voltage regulating rectifier circuit and principle
This article provides a circuit schematic diagram based on the actual object, which is a technical document that motorcycle ...[Details]
1. The default level of the MCU IO port is high after power-on. (P1, P2, and P3 ports are internally pulled up. If the P0 port is not connected to a pull-up resistor, the default is high impedance....[Details]
Electronic display screens made of light-emitting diode (LED) dot matrix modules have been increasingly widely used in production, life, public places and other aspects. Their scale and complexit...[Details]
The Redstone Concentrated Solar Power (CSP) Project.
The Asian Development Bank (ADB) has approved a R3 billion (USD 220.1 million/EUR 193.5 million) loan for the 100 MW Redsto...[Details]
While many WLAN managers focus on troubleshooting and avoiding security breaches, WLAN performance optimization is more focused on a to-do list. Not only is this approach ill-considered, but neglectin...[Details]
The main structure adopts the SPM structure, the pole slot arrangement adopts: 12 poles and 18 slots, the maximum speed is 20000rpm, the power density is 52.43kW/L, the magnetic steel type is: N50,...[Details]
Most industrial proximity sensors (inductive, capacitive, ultrasonic, and photoelectric) are solid-state.
The term solid-state refers to the type of components used within the sensor. Solid-st...[Details]
Smart choices are sometimes more important than hard work. "Choosing the right reference design, solution, accessories, partners, and professional services can help us face technical and demand chall...[Details]
As the development of high-end embedded control applications becomes more complex, system developers need more flexible options to provide scalability for the system. To this end, Microchip Technolog...[Details]
1 Introduction
Since digital signals have only two conditions, high level and low level, a single-chip microcomputer (MCU) can directly realize the acquisition and logic analysis of multiple digi...[Details]
Beijing, October 26, 2024 /PRNewswire/ -- On October 24, CATL launched the world's first hybrid battery with a pure electric range of more than 400 kilometers and 4C supercharging in Beijing - the ...[Details]
51mcu
京公网安备 11010802033920号
EEWORLD
