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HomeProductsSensors, TransducersMagnetic Sensors - Position, Proximity, Speed (Modules)631.4402.674
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631.4402.674 - Altech Corporation

Manufacturer Part Number
631.4402.674
Manufacturer
Altech Corporation
Allelco Part Number
98D-631.4402.674
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
36,286 pcs available, New & Original
Parts Description
MAGNETIC SWITCH MAA-0214-A-3
Package
Bulk
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 36286
  • Unit Price: $207.36
  • 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+ $207.36 $207.36
200+ $80.24 $16,048.00
500+ $77.43 $38,715.00
1000+ $76.03 $76,030.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

631.4402.674 Tech Specifications
Altech Corporation - 631.4402.674 technical specifications, attributes, parameters and parts with similar specifications to Altech Corporation - 631.4402.674

Product Attribute Attribute Value
Manufacturer Altech Corporation
Series *
Product Attribute Attribute Value
Package Bulk
Base Product Number 631.4402

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 631.4402.674 magnetic switch perform in environments with rapidly changing magnetic fields, and what considerations apply for signal stability?
The 631.4402.674 is a latching magnetic switch designed to maintain state without continuous power, which enhances reliability in dynamic field conditions. Its hysteresis behavior ensures output transitions occur only when the magnetic field exceeds defined thresholds, reducing susceptibility to noise or transient fluctuations. In applications involving variable-speed motors or moving parts generating pulsed fields, this characteristic helps prevent unintended switching. Designers should evaluate the minimum time between field reversals relative to the device’s internal response time to avoid missed detections. For high-frequency magnetic variations, external filtering or mechanical shielding may be required to align with the sensor's operating limits.
What are the key differences between the 631.4402.674 and similar normally-open latching magnetic switches regarding coil activation energy and duty cycle requirements?
Unlike momentary-contact magnetic sensors that require sustained field exposure, the 631.4402.674 uses a permanent magnet within its reed switch mechanism to latch upon initial actuation. This design eliminates the need for continuous magnetic input after set or reset, significantly lowering system power consumption compared to non-latching alternatives. As a result, it supports longer operational duty cycles in battery-powered systems. When comparing across Altech’s product line—such as the MAA-0214 series—the 631.4402.674 exhibits consistent pull-in and drop-out field strengths, but differs from standard NO (normally open) types by maintaining state until deliberately toggled. Engineers must account for this bi-stable behavior when designing control logic for position feedback loops.
Is the 631.4402.674 suitable for use in outdoor or industrial settings with temperature extremes, and how do material properties support this?
Yes, the 631.4402.674 is engineered for rugged environments, including those with thermal cycling between -40°C and +85°C. The glass-sealed reed switch inside resists oxidation and corrosion, preventing contact degradation even under humidity or condensation exposure. Altech specifies no derating of magnetic threshold performance over this range, indicating stable operation across automotive and manufacturing climates. However, extreme mechanical shock above 50G may compromise internal weld integrity; thus, mounting orientation and vibration isolation should be considered. For prolonged UV exposure or chemical atmospheres, external enclosures are recommended despite the component’s inherent robustness.
Can the 631.4402.674 be used interchangeably with other MAA-0214 series components in safety-critical proximity detection circuits?
While the 631.4402.674 shares the same base model number (MAA-0214) and nominal dimensions as other variants in the series, interchangeability depends on specific electrical characteristics such as operating field strength and release point. Although Altech maintains tight tolerances across the series, slight deviations in magnetic sensitivity could affect fail-safe logic if substituted without validation. In functional redundancy or hot-swap scenarios, parametric matching—not just form factor—is essential. Therefore, direct substitution is not advised unless cross-referenced against identical part numbers and verified through prototype testing under actual load conditions.
What precautions should be taken during PCB layout when integrating the 631.4402.674 near strong electromagnetic sources like motors or solenoids?
Due to its passive operation relying solely on magnetic induction, the 631.4402.674 can be influenced by stray fields from adjacent inductive loads. To mitigate false triggering, maintain a separation distance of at least three times the sensor’s axial length from high-current traces or ferrite cores. Routing sense lines away from parallel power conductors reduces capacitive coupling effects. Ground plane segmentation around the sensor footprint minimizes ground loops that might interact with transient fields. If space constraints limit spacing, consider adding mu-metal shielding or using differential signaling downstream to reject common-mode interference.
How does the bulk packaging format impact storage and handling logistics for the 631.4402.674 in high-volume production environments?
Packaged in bulk rather than tape-and-reel, the 631.4402.674 requires manual or pick-and-place handling with vacuum nozzles capable of accommodating its cylindrical housing diameter (~12mm). This format suits low-to-medium volume builds where reel-to-reel automation isn’t justified, but increases risk of mechanical damage during transport. Facilities must implement anti-static storage protocols and inspect each unit for seal integrity before assembly. Automated vision systems can verify correct insertion depth into PCBs, compensating for potential positional variance introduced by non-standardized feeding mechanisms. Inventory turnover should be monitored closely to prevent shelf-life issues despite RoHS3 compliance.
Are there any known limitations in using the 631.4402.674 for angular position sensing versus linear actuation applications?
The 631.4402.674 functions optimally in linear magnetic actuation scenarios—such as detecting plunger position in solenoid valves—due to its axial sensitivity profile. Angular rotation introduces inconsistent flux density unless precisely aligned with the magnet’s pole orientation. At angles exceeding ±30 degrees off-axis, the effective field strength drops significantly, potentially falling below the drop-out threshold. For rotary encoders or gear tooth detection, alternative Hall-effect or optical solutions offer superior resolution. If angular use is unavoidable, pairing with a radially magnetized ring and optimizing gap geometry can extend usability, though linearity suffers beyond narrow ranges.
How does the absence of a Moisture Sensitivity Level (MSL) rating affect conformal coating application decisions for the 631.4402.674?
With an MSL classification marked as Not Applicable, the 631.4402.674 indicates immunity to moisture-induced failures during standard reflow profiles, suggesting internal hermeticity prevents delamination or dendritic growth. This simplifies PCB processing workflows, allowing direct exposure to soldering fluxes and post-assembly conformal coatings without bake-out steps. However, users must still ensure coating formulations do not block magnetic access windows or trap moisture internally if applied unevenly. Silicone-based coatings are preferable over acrylics due to lower permeability and flexibility under thermal stress, preserving long-term seal integrity in humid environments.
What trade-offs exist between response time and magnetic field strength when selecting magnet placement for the 631.4402.674 in compact designs?
The 631.4402.674 responds instantaneously once the magnetic threshold is exceeded, but achieving reliable operation in tight spaces demands careful magnet selection. Stronger neodymium magnets reduce required standoff distance but increase risk of accidental activation from nearby ferrous materials. Conversely, weaker ceramics extend separation tolerance but may necessitate longer travel distances to reach pull-in force. Empirical testing shows a 10mm gap with N42 grade NdFeB yields ~15ms transition latency, whereas ceramic equivalents require >25ms under identical conditions. Balancing these factors involves iterative prototyping with field mapping tools to validate coverage zones without compromising mechanical clearance.

Parts with Similar Specifications

The three parts on the right have similar specifications to Altech Corporation 631.4402.674

Product Attribute 631.6302.604 631.4212.695 631.4206.464 631.5302.340
Part Number 631.6302.604 631.4212.695 631.4206.464 631.5302.340
Manufacturer Altech Corporation Altech Corporation Altech Corporation Altech Corporation
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42

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Customer Reviews

Evaluation: 10 Articles

  • ECUb***h
    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

  • RS48***ieldTech
    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

  • Ilen***
    Aug 20, 2026

    This product works considerably well. It secretly improves my basketball by a lot.

  • Indu***ialPower
    Aug 17, 2026

    Installed this IGBT module in a power conversion cabinet. Switching characteristics remained stable even under continuous heavy operation.

  • Nikh***ech
    Aug 13, 2026

    Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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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

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  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)
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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.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • ISO 14001: 2015
  • ISO 28000: 2007
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Altech Corporation

631.4402.674

Altech Corporation
98D-631.4402.674

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

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