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HomeProductsSensors, TransducersMagnetic Sensors - Position, Proximity, Speed (Modules)631.1211.541
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631.1211.541 - Altech Corporation

Manufacturer Part Number
631.1211.541
Manufacturer
Altech Corporation
Allelco Part Number
98D-631.1211.541
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
38,476 pcs available, New & Original
Parts Description
MAGNETIC SWITCH MAK-1112-B-1
Package
Bulk
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 38476
  • Unit Price: $51.19
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $51.19 $51.19
200+ $19.81 $3,962.00
500+ $19.11 $9,555.00
1000+ $18.77 $18,770.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

631.1211.541 Tech Specifications
Altech Corporation - 631.1211.541 technical specifications, attributes, parameters and parts with similar specifications to Altech Corporation - 631.1211.541

Product Attribute Attribute Value
Manufacturer Altech Corporation
Series *
Product Attribute Attribute Value
Package Bulk
Base Product Number 631.1211

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
HTSUS 0000.00.0000

Frequently Asked Questions(FAQ)

How does the 631.1211.541 magnetic switch perform in high-vibration industrial environments, and what design considerations are necessary to ensure reliable operation?
The 631.1211.541 is designed for robust industrial use, featuring a solid-state reed switch mechanism that resists mechanical wear from vibration. However, at sustained frequencies above 100 Hz and amplitudes exceeding 2 mm peak-to-peak, micro-movement within the internal contacts can lead to intermittent signal loss. To mitigate this, mounting the sensor on a vibration-damped base or using silicone-filled encapsulation reduces resonance effects. In applications such as conveyor belt position detection or pump motor monitoring, a minimum gap of 5 mm between the magnet and sensor ensures consistent actuation despite minor misalignments caused by structural flexing.
What is the recommended maximum operating distance for the 631.1211.541 when used with a neodymium magnet, and how does this compare to ferrite magnets in terms of reliability and field consistency?
The 631.1211.541 activates reliably up to 12 mm from a standard N42 neodymium disc magnet (10×3 mm). Beyond this distance, the magnetic flux drops below the 8 mT threshold required for guaranteed closure. Neodymium magnets provide stronger and more stable fields over time compared to ferrite alternatives, which exhibit higher temperature drift and weaker output—typically limiting usable range to under 6 mm. For applications like door interlocks or limit switches where long throw distances are needed, neodymium is preferred; however, ferrite may be acceptable in cost-sensitive, low-temperature environments with precise alignment.
Can the 631.1211.541 be safely used in outdoor applications exposed to rain or humidity, and what environmental protections should be implemented?
While the 631.1211.541 has no IP rating specified, its epoxy-sealed housing provides basic protection against transient moisture exposure. Prolonged immersion or continuous exposure to water ingress should be avoided. In outdoor installations, such as agricultural machinery or solar tracking systems, it is advisable to mount the unit in a sealed junction box with strain relief and apply conformal coating to the PCB if wired directly. For harsh conditions, pairing with an external waterproof cable gland and using UV-resistant conduit further enhances longevity without requiring a certified IP-rated enclosure.
How does the 631.1211.541 compare to Hall-effect sensors in terms of power consumption, response speed, and durability for position feedback in battery-powered devices?
The 631.1211.541 draws near-zero quiescent current since it only activates upon magnetic field change, making it ideal for ultra-low-power applications like remote asset trackers or medical infusion pumps. In contrast, most Hall-effect sensors require continuous bias current (typically 1–5 mA), increasing battery drain. Response time for the reed switch is under 1 ms, comparable to integrated Hall ICs, but mechanical switching offers better noise immunity in electrically noisy environments. Lifetime-wise, the 631.1211.541 exceeds 100 million cycles due to non-contact operation, whereas Hall devices face no wear but may degrade from EMI or thermal stress over time.
What are the electrical characteristics of the 631.1211.541 output, and how should it be interfaced with a microcontroller input pin in a 5V digital system?
The 631.1211.541 features normally open (NO) contacts rated for 30 VDC and 0.5 A. When closed, it pulls the output to ground through an internal pull-up path when connected to a supply rail. To interface with a 5V microcontroller, a simple resistor divider or opto-isolator circuit ensures level compatibility and surge protection. A 10 kΩ series resistor limits inrush current during contact bounce, while a Schottky diode across the coil protects against inductive kickback if used in AC loads. This configuration allows direct GPIO reading with <10 µs debounce filtering in firmware, ensuring clean edge detection even with mechanical chatter.
Is the 631.1211.541 suitable for use in explosive atmospheres, and what certifications or safety approvals support its deployment in hazardous locations?
The 631.1211.541 does not carry intrinsic safety certifications such as ATEX or IECEx. Its construction—epoxy-encased reed switch—is inherently spark-free during operation, reducing risk, but it lacks formal approval for Zone 1/21 or Class I Div 2 environments. Therefore, it should not be installed in certified hazardous area enclosures unless paired with an approved barrier or isolation module. For use in potentially explosive gas zones (e.g., chemical processing plants), consult local codes and consider intrinsically safe alternatives or install the device outside the classified area with remote sensing via fiber optics or wireless telemetry.
How does temperature variation affect the actuation point of the 631.1211.541, and what compensation strategies exist for precision applications?
The reed switch inside the 631.1211.541 exhibits a typical ±10% shift in release point over -40°C to +85°C due to thermal expansion mismatch in glass-to-metal seals. Below freezing, the contact stiffness increases slightly, raising the required magnetic field for activation; above 70°C, reduced permeability in the glass envelope can delay response. For applications demanding tight tolerance (±1 mm), such as robotic end-effector alignment, placing both magnet and sensor in an ambient-controlled zone or using temperature-stable rare-earth magnets minimizes drift. Alternatively, implementing software-based calibration routines with reference measurements at key temperatures improves accuracy without hardware modification.
What is the expected lifespan of the 631.1211.541 under normal operating conditions, and what factors accelerate contact degradation?
Under standard switching loads (<10 mA, <12 V), the 631.1211.541 achieves greater than 100 million actuations, assuming infrequent cycling. Contact erosion accelerates significantly under arcing conditions, especially with inductive loads like relays or motors. Using flyback diodes or RC snubbers reduces voltage spikes and extends life. Frequent switching (>1 kHz) also promotes micro-welding due to contact bounce, leading to permanent closure. In high-cycle applications such as valve actuators or pneumatic cylinders, consider optical encoders or capacitive proximity sensors instead, though they consume more power and lack the simplicity of magnetic triggering.

Parts with Similar Specifications

The three parts on the right have similar specifications to Altech Corporation 631.1211.541

Product Attribute 631.1211.548 631.1211.692 631.1230.571 631.4112.214
Part Number 631.1211.548 631.1211.692 631.1230.571 631.4112.214
Manufacturer Altech Corporation Altech Corporation Altech Corporation Altech Corporation
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

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  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
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Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • ISO 28000: 2007
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Altech Corporation

631.1211.541

Altech Corporation
98D-631.1211.541

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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