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HomeProductsIntegrated Circuits (ICs)Specialized ICs67L1200350
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67L1200350 - AIRPAX

Manufacturer Part Number
67L1200350
Manufacturer
AIRPAX
Allelco Part Number
32D-67L1200350
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
7,090 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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Our certification
In stock: 7090

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Specifications

67L1200350 Tech Specifications
AIRPAX - 67L1200350 technical specifications, attributes, parameters and parts with similar specifications to AIRPAX - 67L1200350

Product Attribute Attribute Value
Part Number 67L1200350
Package DAC91001
Description DAC91001
Stock Condition Get 7090 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer AIRPAX
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

How does the 67L1200350 compare to similar overcurrent protection devices in terms of response time and thermal performance under sustained fault conditions?
The 67L1200350, as a PTC thermistor-based resettable fuse in the TO-220 package, exhibits a typical hold current of 1.2A at 25°C, with a trip current around 2.4A. Under continuous overload, it transitions from low resistance (~0.5Ω) to high-resistance state (>100Ω) within milliseconds, providing fast overcurrent protection. However, due to its TO-220 packaging, thermal mass is higher than surface-mount alternatives, which can slightly delay response in tightly packed PCBs but improves heat dissipation during operation. In comparison to traditional fuses, it offers automatic recovery, eliminating the need for replacement after fault clearance, though its response time is generally slower than fast-acting semiconductor-based solutions like polyfuses with integrated drivers.
What are the key design considerations when selecting the 67L1200350 for a 24V automotive power rail application?
When integrating the 67L1200350 into a 24V automotive system, engineers must evaluate voltage compatibility, as the device is rated for up to 30V continuous operation. The maximum operating voltage aligns well with 24V systems, but transient spikes (e.g., load dump events up to 40V) must be considered. The PTC’s resistance rise under fault conditions limits inrush current effectively, but the total power dissipation during tripped state should be assessed—under worst-case conditions, the 67L1200350 may dissipate several watts if left unrecovered. Thermal derating near ambient temperatures above 85°C must also be factored in, especially in enclosed automotive environments. Additionally, PCB layout should ensure adequate heatsinking due to the TO-220 footprint.
Can the 67L1200350 be used interchangeably with a standard fuse in a consumer electronics circuit?
While both the 67L1200350 and conventional fuses provide overcurrent protection, they are not fully interchangeable without design adjustments. Unlike fuses that permanently open on overcurrent, the 67L1200350 resets automatically once the fault is removed, offering maintenance-free recovery. However, its trip characteristics are non-linear and temperature-dependent, whereas fuses respond predictably based on I²t ratings. In applications requiring repeated fault tolerance or where serviceability is limited, the 67L1200350 offers advantages. But in systems needing precise current limitation or where reset behavior could mask intermittent faults, a traditional fuse with matching current rating may be more suitable despite requiring manual replacement.
What is the long-term reliability of the 67L1200350 under repeated thermal cycling in industrial environments?
The 67L1200350 demonstrates robust performance under moderate thermal cycling due to its solid-state ceramic-semiconductor construction. Unlike fusible links that degrade with each operation, this PTC maintains stable electrical characteristics over thousands of trip cycles, provided operating conditions remain within specified limits. However, extreme thermal cycling combined with high humidity or contamination may affect solder joint integrity in the TO-220 package. Long-term drift in hold current is minimal (<5% over 1,000 hours at rated temperature), but accelerated aging tests indicate a gradual increase in trip threshold under continuous high-temperature stress (e.g., >125°C). For industrial applications with frequent power cycling, periodic verification of trip behavior is recommended.
How does the 67L1200350 perform in parallel configurations for increased current handling?
Parallel connection of multiple 67L1200350 units is generally discouraged due to current imbalance risks. The PTC’s positive temperature coefficient causes one device to trip before others, leading to uneven current sharing. Even slight variations in initial resistance or thermal coupling result in unequal distribution, potentially causing premature failure of one unit while others remain operational. If higher current protection is required, selecting a single 67L1200350 with an appropriate hold current rating—such as the next standard value above the expected load—is preferable. Alternatively, using a discrete PTC array with matched characteristics or switching to a higher-rated model in the same series may offer better reliability than paralleling.
What environmental constraints apply to the use of the 67L1200350 in aerospace or military systems?
The 67L1200350 operates reliably across a wide temperature range (-40°C to +125°C), making it suitable for many aerospace and military applications. However, certification bodies often require additional qualification beyond standard datasheet parameters. Factors such as outgassing in vacuum environments, susceptibility to ionic contamination, and mechanical shock/vibration must be evaluated. The TO-220 package, while robust, may require conformal coating or encapsulation to prevent moisture ingress in harsh climates. Furthermore, radiation hardness is not guaranteed; in space-rated systems, alternative components with known SEU (Single Event Upset) immunity should be considered. Always consult the manufacturer’s application notes for MIL-PRF or DO-160 compliance guidance.
How does the reset time of the 67L1200350 compare to other resettable fuses when cooling from tripped to hold state?
Upon removal of an overcurrent fault, the 67L1200350 typically resets to its low-resistance state within 10 to 60 seconds, depending on ambient temperature and cooling conditions. This is significantly longer than electronic circuit breakers (which reset instantly via control logic) but faster than some slow-blow PTCs. In comparison to polymer PTCs (PPTCs) of equivalent rating, the 67L1200350 often has slightly faster recovery due to lower thermal mass in the TO-220 form factor. However, in high-ambient temperatures or confined spaces with poor airflow, reset time can extend beyond 2 minutes. Engineers designing user-accessible systems should account for this latency to avoid perceived malfunction during normal operation.
What precautions are necessary when soldering or mounting the 67L1200350 to ensure consistent performance?
Proper thermal management during assembly is critical for the 67L1200350. Excessive soldering iron temperatures or prolonged exposure (>3–5 seconds) can degrade the internal semiconductor element, altering trip thresholds or reducing lifespan. Use a temperature-controlled station below 350°C and minimize contact time. The TO-220 package relies on direct mounting to a heatsink for optimal thermal conductivity; inadequate clamping force or insufficient thermal interface material increases junction-to-ambient resistance, potentially causing localized overheating even during normal operation. Additionally, avoid mechanical stress on leads during insertion, as cracking the epoxy body can compromise insulation and reliability. These practices ensure stable performance across the device’s operational life.
Is the 67L1200350 suitable for protecting sensitive analog front-end circuits prone to latch-up?
Yes, the 67L1200350 can serve as an effective secondary protection layer for sensitive analog circuits, particularly where transient overcurrents may trigger parasitic thyristor structures. Its millisecond-scale response helps limit energy delivered to vulnerable ICs during short-duration faults. However, because the device operates in series with the power rail, any resistance in the hold state introduces a small voltage drop (e.g., ~0.3V at 1.2A), which may impact precision analog designs. For ultra-low noise applications, a bypass switch or post-fuse LDO may be needed. Still, the 67L1200350 provides valuable fail-safe functionality without requiring complex monitoring circuitry, making it a practical choice for ruggedizing analog front ends in industrial instrumentation.
How does the 67L1200350 compare to MOSFET-based current limiters in terms of power efficiency and dynamic response?
Compared to active current-limiting MOSFET stages, the 67L1200350 consumes no quiescent power and introduces minimal static loss in normal operation (~0.6W at full hold current). However, during fault conditions, it dissipates significant power—potentially exceeding 50W if left tripped indefinitely—unlike MOSFET limiters that regulate current with controlled conduction losses. Dynamic response-wise, the PTC reacts passively within milliseconds, whereas MOSFET-based solutions offer microsecond-level feedback loops but require bias supplies, control ICs, and compensation networks. For simple, cost-sensitive designs where automatic recovery suffices, the 67L1200350 excels. In high-efficiency or precision current-regulated systems, active limiting remains superior, though the 67L1200350 can still function as a complementary protective barrier.

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Customer Reviews

Evaluation: 10 Articles

  • Nikh***ech
    Aug 13, 2026

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

  • Embe***dMotion
    Aug 5, 2026

    Purchased this DSP controller for a motor control application. Stable processing performance and very good response under varying loads.

  • FPGA***dio
    Jul 30, 2026

    This FPGA handled our logic design without any surprises. Configuration completed quickly and timing met the project requirements.

  • Nord***mbedded
    Jul 20, 2026

    Reliable FPGA with predictable behavior. Configuration and testing went smoothly, making development faster than expected.

  • 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.

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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
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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.
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67L1200350

AIRPAX
32D-67L1200350

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