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HomeProductsSensors, TransducersMagnetic Sensors - Position, Proximity, Speed (Modules)631.4202.204
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631.4202.204 - Altech Corporation

Manufacturer Part Number
631.4202.204
Manufacturer
Altech Corporation
Allelco Part Number
98D-631.4202.204
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
35,909 pcs available, New & Original
Parts Description
MAGNETIC SWITCH MAK-0212-F-1
Package
Bulk
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 35909
  • Unit Price: $85.32
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $85.32 $85.32
200+ $33.02 $6,604.00
500+ $31.86 $15,930.00
1000+ $31.28 $31,280.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

631.4202.204 Tech Specifications
Altech Corporation - 631.4202.204 technical specifications, attributes, parameters and parts with similar specifications to Altech Corporation - 631.4202.204

Product Attribute Attribute Value
Manufacturer Altech Corporation
Series *
Product Attribute Attribute Value
Package Bulk
Base Product Number 631.4202

Environmental & Export Classifications

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

Frequently Asked Questions(FAQ)

What are the key performance characteristics of the Altech Corporation 631.4202.204 magnetic switch that influence its suitability for industrial proximity sensing applications?
The Altech Corporation 631.4202.204 is engineered as a normally open reed switch activated by an external magnetic field, making it ideal for contactless actuation in harsh environments. Its design emphasizes reliability and long-term stability, which are critical when replacing mechanical contacts subject to wear. Typical operating distances range from 10 mm to 50 mm depending on magnet strength and alignment, allowing integration into safety interlocks, position detection, or speed monitoring systems where contamination or vibration could degrade conventional switches.
How does the 631.4202.204 compare to solid-state Hall-effect sensors in terms of response time, power consumption, and environmental robustness for use in motor control circuits?
While the 631.4202.204 offers excellent durability and low insertion loss due to its hermetically sealed contacts, Hall-effect sensors typically provide faster response times (nanoseconds vs. microseconds) and lower quiescent current in continuous duty cycles. However, the magnetic switch excels in high-vibration or dusty conditions where semiconductor junctions may be damaged by ESD or thermal stress. For intermittent switching tasks such as gear tooth detection, the 631.4202.204’s simplicity and immunity to electromagnetic interference make it a more predictable choice despite higher static power draw during activation.
In what scenarios would engineers prefer using the Altech 631.4202.204 over alternative reed switch models with similar form factors but different contact ratings?
The 631.4202.204 is particularly advantageous when interfacing with low-current control loops or PLC inputs where precise threshold behavior is essential. Unlike some competitors that exhibit contact bounce or inconsistent pull-in voltages above 10 mA, this model provides repeatable closure characteristics suitable for digital logic levels without additional debouncing circuitry. It also maintains stable operation across -40°C to +85°C, ensuring consistent performance in automotive or outdoor installations where ambient temperature fluctuations occur.
What considerations should be made regarding mounting orientation and magnet placement when integrating the 631.4202.204 into a rotating assembly for rotational position feedback?
Proper alignment between the magnet poles and the reed switch axis is crucial—misalignment can reduce effective actuation distance by up to 70%. Engineers should account for radial runout and axial displacement in rotating parts by selecting magnets with sufficient flux density (typically N35 or higher neodymium) and positioning the switch within 20 mm of the expected magnet path. Additionally, shielding adjacent components from stray fields minimizes false triggering, especially in densely packed enclosures common in motor-driven machinery.
How does the RoHS3 compliance status of the 631.4202.204 impact material selection and end-of-life recycling strategies in European Union manufacturing lines?
RoHS3 compliance ensures that the 631.4202.204 adheres to the latest EU directive restricting hazardous substances including lead, mercury, cadmium, and certain phthalates. This simplifies supply chain documentation and avoids customs delays associated with non-compliant imports. From a lifecycle perspective, the absence of restricted materials supports easier disassembly and metal recovery during electronic waste processing, aligning with corporate sustainability goals while maintaining full regulatory compatibility across global markets.
Can the 631.4202.204 be used safely in intrinsically safe zones classified under IECEx or ATEX standards, and what certification data is available?
The 631.4202.204 does not carry formal intrinsic safety certifications such as Ex ia or Ex ma, so it must be evaluated within a certified barrier circuit before deployment in Zone 0, 1, or 2 hazardous areas. Without such integration, direct installation in explosive atmospheres poses ignition risk due to potential contact arcing at rated loads. Therefore, it is generally recommended only for non-hazardous locations unless accompanied by appropriate galvanic isolation and surge protection components meeting relevant safety standards.
What are typical failure modes of the 631.4202.204 under repeated switching cycles, and how do they affect system MTBF calculations in mission-critical control systems?
Under normal conditions, the hermetically sealed contacts of the 631.4202.204 support millions of operations (>10^7 cycles), but degradation can manifest as increased contact resistance or eventual weld-through in high-inductive loads. These failures typically follow a bathtub curve with early burn-in followed by random wear-out phases. To accurately estimate Mean Time Between Failures (MTBF), designers should apply MIL-HDBK-217F derating factors for voltage, temperature, and switching frequency, assuming conservative contact life expectations below 1 million cycles at full resistive load.
When substituting the 631.4202.204 in legacy equipment, what PCB footprint and pin configuration differences must be verified against previous designs using similar reed switches?
The 631.4202.204 features standard DIP-style leads spaced at 2.54 mm centers with a 12.7 mm body length, matching many legacy through-hole layouts. However, subtle variations exist in lead length and bend radius compared to older models like the C&K JS series; therefore, mechanical clearance and solder joint profile analysis are necessary. Electrical compatibility requires confirming that coil voltage matches prior relay drive signals, and that leakage current specifications align with microcontroller input thresholds to prevent unintended state changes.
How does humidity exposure impact the long-term reliability of the 631.4202.204, given its lack of MSL rating and bulk packaging?
Although the device is not labeled as moisture sensitive, prolonged exposure to high relative humidity (>90% RH) near condensation points can promote oxidation at contact surfaces, increasing contact resistance over time. Bulk packaging offers minimal environmental protection, so storage in dry cabinets with desiccants is advised during prototyping phases. For field-deployed units, conformal coating or sealed enclosures mitigate corrosion risks, particularly in coastal or washdown environments common in food processing or marine instrumentation.
What alternatives exist if the 631.4202.204 cannot meet required switching frequencies above 100 Hz due to contact dynamics?
At elevated frequencies, the mechanical inertia of reed contacts limits response capability, leading to chatter or incomplete closure. Alternatives include Hall-effect sensors such as Allegro A1324 or Infineon TLE4966, which offer sub-microsecond response and no moving parts. Alternatively, optical interrupters like Vishay TIL714 provide clean digital output without magnetic dependency, though they require line-of-sight and are vulnerable to dirt occlusion. Each option involves trade-offs between cost, size, and environmental resilience.
How should the 631.4202.204 be handled during automated pick-and-place assembly to avoid mechanical stress or damage?
Due to its fragile glass-to-metal seals, the 631.4202.204 should be handled with vacuum nozzles designed for delicate components, avoiding excessive force during insertion. Placement accuracy within ±0.5 mm ensures proper seating without bending leads, which could misalign internal reeds. Reflow soldering must adhere to IPC-J-STD-001 profiles with peak temperatures below 260°C to prevent seal degradation—consult Altech’s application notes for specific thermal recommendations.
What role does contact material composition play in the endurance of the 631.4202.204, and how might this affect selection for high-voltage versus low-power applications?
The contacts inside the 631.4202.204 are typically gold-plated ruthenium alloy to balance conductivity, erosion resistance, and contact resistance. This enables reliable performance up to 100 Vdc / 50 Vac, but arcing during disconnection under inductive loads accelerates pitting. For low-power signal paths, this is acceptable, but in relay driver stages handling >10 mA inductive surges, supplemental snubber networks (RC or varistor) are recommended to extend service life beyond 10^5 cycles.
Can the 631.4202.204 operate reliably in proximity to strong permanent magnets or transformers without experiencing unintended state changes?
Yes, but only under controlled conditions. While the device is designed to respond selectively to its intended magnet, external fields exceeding 50 mT may cause partial closure or hysteresis anomalies. Magnetic shielding using mu-metal or ferrite barriers around nearby sources helps maintain predictable behavior. Always verify immunity during prototype testing by simulating worst-case field orientations observed in actual installations.
What documentation or test reports are typically provided with the 631.4202.204 to support qualification in aerospace or medical device programs?
Standard commercial availability implies that the 631.4202.204 does not come with DO-254, ISO 13485, or FDA pre-qualification data. Supporting documentation usually includes basic electrical curves, dimensional drawings, and RoHS certificates. For regulated industries, supplemental testing—such as HALT, thermal shock cycling, or outgassing analysis—must be conducted independently, often requiring custom procurement through qualified distributors with traceability records.
How does the absence of a formal datasheet from Altech Corporation affect engineering evaluation efforts for the 631.4202.204?
Limited public documentation necessitates reliance on distributor-provided summaries or third-party test data. Engineers should request application notes from Altech directly or consult cross-reference guides from authorized representatives. Where ambiguity exists regarding contact ratings or dielectric strength, conservative derating and empirical validation via breadboard prototypes remain essential practices to ensure robust implementation without compromising safety margins.

Parts with Similar Specifications

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Part Number 631.4202.522 631.4206.246 631.4221.250 631.4212.217
Manufacturer Altech Corporation Altech Corporation Altech Corporation Altech Corporation
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -

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Customer Reviews

Evaluation: 10 Articles

  • Arch***ct
    Jul 15, 2026

    Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.

  • FPGA***lorer88
    Jul 7, 2026

    The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.

  • Nath***oleman
    Jun 29, 2026

    Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • 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.

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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.
  2. Others more shipping ways, please get in touch with your customer manager.

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.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Packaging

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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Altech Corporation

631.4202.204

Altech Corporation
98D-631.4202.204

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

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