# Reed Switch, SPST-NO, 4.3 mm, Through Hole, -40°C to 105°C, 59045 Series
**URL**: https://novapart.co/products/59045-1-T-00-0/reed-switch-spst-no-43-mm-through-hole-40c-to-105c
**SKU**: 59045-1-T-00-0
**Manufacturer**: LITTELFUSE
**Category**: Sensors & Transducers || Sensors || Proximity Sensors / Proximity Switches || Reed Proximity Sensors
**Price**: €1.8200
**Stock**: 500+
**Lead Time**: 120 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Sensor Type | Miniature Reed Switch |
| Product Range | 59045 Series |
| Supply Current | - |
| Sensor Mounting | Through Hole |
| Sensing Range Max | 4.3mm |
| Sensing Distance Max | 4.3mm |
| Operating Temperature Max | 105°C |
| Operating Temperature Min | -40°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4254230/)
**Overmolded Reed Switches** Low Power > 59045
## 59045 Miniature PCB Mou ~~ntable Reed Switch + 57045 Actuator~~
## **Description**
The 59045 is a miniature PCB-mountable reed switch, 17.78mm x 4.32mm x 3.3mm (0.700” x 0.170” x 0.130”) with a normally open contact. It has moulded stand-offs to allow board washing. It is capable of switching up to 200Vdc at 10W. It functions best with the matching actuator 57045-000.
**Note: The 57045 Actuator is sold separately.**
## **Features**
- Two-part magnetically operated proximity switch
- Normally open contact configuration
- Moulded stand-offs to allow board washing
- Wave solder capable
- Certified for use in North American Hazardous Locations: Class I, Division 2 and Zone 2
- ATEX certified for use in European explosive atmospheres: II 3 G Ex nC IIC Gc
- RoHS compliant
## **Agency Approvals**
## **Benefits**
|**Agency**
cWAkus|**Agency File Number**
E61760
E471070|
|---|---|
|€x)|DEMKO 14 ATEX 1393U
II 3 G Ex nC IIC Gc
©|
Note: Contact Littelfuse for specific agency approval ratings.
- Mounts directly into printed • Hermetically sealed, magnetically circuit board operated contacts continue to
- • No standby power requirement operate long after optical and other • Operates through non-ferrous technologies fail due materials such as wood, plastic to contamination or aluminium
## **Applications**
- Door Switch
- Position and Limit Sensing
• Security System Switch
## **Dimensions**
|**Dimensions**|||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Dimensions in mm (inch)|||||||||||||||||
|**A**
**B**
**Switch**
**C**
;b-— ~~a~~
he
~
-— ~~—]~~|||||||**D**
**E**
**F**
ay
~~h~~e|||**A**
**B**
**Actuator**
**C**
e~~e ~~
:
O~~s~~|||||**D**
~~e~~e
7||
|**57045 Actuator**
**59045 Switch**|**A**
**Max.**
4.32
(.170)
4.32
(.170)||||||**B**
**Max.**
17.78
(.700)
17.78
(.700)||**C**
**±0.25 (.010)**
*
15.24
(.600)||||**D**
**Max.**
**E**
**±0.38 (.015)**
**F**
**Nom.**
3.3
(.130)
–
–
3.3
(.130)
3.3
(.130)
0.4699
(.0185”) Dia.||||
* Mounting: 1.57 (.062) thick board, 3.17 (.125) holes on 13.72mm (.540) centerline.
© 2020 Littelfuse Revised: 01/07/20 Specifications are subject to change without notice.
littelfuse.com
**Overmolded Reed Switches** Low Power > 59045
**==> picture [93 x 32] intentionally omitted <==**
## 59045 Miniature PCB Mou ~~ntable Reed Switch + 57045 Actuator~~
## **Electrical Ratings**
**==> picture [507 x 266] intentionally omitted <==**
**----- Start of picture text -----**
Contact Type Normally Open
Switch Type 1
Contact Rating [1] VA/Watt - max. 10
Switching [2] Vdc - max. 200
Voltage [3] Vac - max. 140
Breakdown [4] Vdc - min. 250
Switching [2] Adc - max. 0.5
Current [3] Aac - max. 0.35
Carry Adc - max. 1.2
Contact, Initial Ω - max. 0.2
Resistance
Insulation Ω - min. 10 [10]
Capacitance Contact pF - typ. 0.3
Temperature Operating °C -40 to +105
Product Characteristics
Operate Time [5] ms - max. 1.0
Release Time [5] ms - max. 1.0
Shock [6] 11ms 1⁄2 sine G - max. 100
Vibration [6] 50-2000 Hz G - max. 30
**----- End of picture text -----**
Notes:
1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.
2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details.
3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.
4. Breakdown Voltage - per MIL-STD-202, Method 301.
5. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II).
6. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
## **Sensitivity Options (Using 57045 Actuator)**
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**----- Start of picture text -----**
Select Option S T U
Pull-In Activate Distance, D Pull-In Activate Distance, D Pull-In Activate Distance, D
Switch Type mm (inch) mm (inch) mm (inch)
AT Range AT Range AT Range
Average Average Average
1 Normally Open 15-20 5.0 (.196) 20-25 4.3 (.170) 25-30 3.8 (.150)
**----- End of picture text -----**
Note:
Pull-In Range - Contact Littelfuse for narrower AT ranges available. These AT values are the before molding and modification AT of the 59045.
**==> picture [102 x 109] intentionally omitted <==**
**==> picture [7 x 9] intentionally omitted <==**
**----- Start of picture text -----**
D
**----- End of picture text -----**
© 2020 Littelfuse Revised: 01/07/20 Specifications are subject to change without notice.
littelfuse.com
**Overmolded Reed Switches** Low Power > 59045
**==> picture [93 x 32] intentionally omitted <==**
**==> picture [93 x 32] intentionally omitted <==**
## 59045 Miniature PCB Mou ~~ntable Reed Switch + 57045 Actuator~~
## **Part Numbering System**
**==> picture [419 x 128] intentionally omitted <==**
**----- Start of picture text -----**
Switch: 59045 - 1 - X - 00 - 0 Actuator: 57045 - 000
Series Series
Switch Type Standard Actuator
000
Sensitivity Note: The 57045 Actuator is sold separately.
S, T, or U
**----- End of picture text -----**
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**----- Start of picture text -----**
Product Marking
**----- End of picture text -----**
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**----- Start of picture text -----**
||||||
|---|---|---|---|---|
|Switch:|Actuator:|
|59045-1-X-00-0|57045 - 000|
|Part Number|Part Number|
|Packaging|
|Packaging Option|Packaging Specification|Quantity|Quantity and Packaging Code|Taping Width|
|200/Box|
|Bulk|Bulk|N/A|N/A|
|MOQ = 1000pcs|
**----- End of picture text -----**
**Disclaimer Notice -** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2020 Littelfuse Revised: 01/07/20 Specifications are subject to change without notice.
littelfuse.com
## Links
- [View this product on Novapart](https://novapart.co/products/59045-1-T-00-0/reed-switch-spst-no-43-mm-through-hole-40c-to-105c)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/littelfuse/59045-1-t-00-0/reed-switch-spst-no-4-3mm-th/dp/4254230)
---
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