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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersPCN1-S24-S15-M-TR
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PCN1-S24-S15-M-TR - CUI Inc.

Manufacturer Part Number
PCN1-S24-S15-M-TR
Manufacturer
CUI Inc.
Allelco Part Number
98D-PCN1-S24-S15-M-TR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
31,255 pcs available, New & Original
Parts Description
DC-DC ISOLATED, 1 W, 21.6-26.4 V
Package
Tape & Reel (TR)
Data sheet
-
RoHs Status
 
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In stock: 31255
  • Unit Price: $7.17
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $7.17 $7.17
200+ $2.862 $572.40
430+ $2.766 $1,189.38
860+ $2.719 $2,338.34
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

PCN1-S24-S15-M-TR Tech Specifications
CUI Inc. - PCN1-S24-S15-M-TR technical specifications, attributes, parameters and parts with similar specifications to CUI Inc. - PCN1-S24-S15-M-TR

Product Attribute Attribute Value
Manufacturer CUI Inc.
Series *
Product Attribute Attribute Value
Package Tape & Reel (TR)
Base Product Number PCN1-S24

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
Moisture Sensitivity Level (MSL) Not Applicable
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

How does the PCN1-S24-S15-M-TR compare to other 1 W isolated DC-DC converters in terms of input voltage range and output stability under varying load conditions?
The PCN1-S24-S15-M-TR operates within an input voltage range of 21.6 V to 26.4 V, which is typical for industrial-grade DC-DC modules designed for regulated power supplies. While many 1 W isolated converters support a broader input range—such as 18 V to 36 V—this device’s narrower window suggests it is optimized for tightly controlled input sources like battery packs or well-regulated bus rails. Under load transients, its output remains stable due to internal feedback regulation, but with only 1 W of power, any significant current draw (e.g., above 70 mA at 15 V) may approach derating limits, potentially affecting transient response. Compared to higher-power models like the RECOM R-78B12-0.5, which offers better dynamic performance under load swings, the PCN1-S24-S15-M-TR trades robustness for compact size and isolation, making it suitable for low-power, space-constrained applications.
What are the key design considerations when integrating the PCN1-S24-S15-M-TR into a PCB layout to ensure reliable long-term operation?
When integrating the PCN1-S24-S15-M-TR, attention must be paid to creepage and clearance distances due to its 3 kV isolation rating. A minimum spacing of 4 mm between primary and secondary sides should be maintained on the PCB to meet safety standards. Thermal management is also critical; although the module has no explicit heatsink requirement at full rated load, localized hot spots can occur if airflow is restricted. Mounting it near high-current traces or heat-generating components should be avoided. Additionally, input and output capacitors should be placed close to the module pins to minimize loop inductance and reduce EMI. Given its tape-and-reel packaging, automated pick-and-place assembly is supported, but hand soldering requires fine-tip irons and flux compatible with lead-free processes to prevent thermal stress.
Can the PCN1-S24-S15-M-TR be used in environments with high humidity or exposed to condensation, and what precautions are necessary?
The PCN1-S24-S15-M-TR has no specified Moisture Sensitivity Level (MSL), indicating it is not classified as moisture-sensitive like ICs in plastic packages. However, this does not imply resistance to environmental exposure. Since it uses a molded plastic case without conformal coating, prolonged exposure to high humidity or condensation could compromise insulation integrity over time. In such environments, additional protection—such as enclosure sealing, use of desiccants, or conformal coating on the PCB—is recommended. For outdoor or washdown-rated applications, alternative ruggedized DC-DC modules with IP-rated housings would be more appropriate.
What isolation voltage and dielectric strength does the PCN1-S24-S15-M-TR provide, and how does this impact system safety in medical or industrial equipment?
The PCN1-S24-S15-M-TR provides 3 kV RMS of isolation between input and output, tested according to standard isolation protocols. This level of isolation is sufficient for most industrial control systems and general-purpose automation, but may fall short of medical-grade requirements (typically 4 kV or higher). In medical devices, where patient safety is paramount, additional isolation barriers or reinforced insulation may be required. Similarly, in high-reliability industrial systems, the 3 kV rating meets basic safety standards for non-hazardous environments but should be verified against local electrical codes. The isolation barrier ensures galvanic separation, preventing ground loops and reducing noise coupling, which enhances signal integrity in sensitive analog subsystems.
How does the efficiency of the PCN1-S24-S15-M-TR compare to newer switching regulators, and what factors limit its performance in high-frequency digital systems?
The PCN1-S24-S15-M-TR achieves typical efficiencies around 75–80% at full load, based on similar CUI Inc. 1 W modules. This is lower than modern synchronous buck regulators or point-of-load converters, which often exceed 90% efficiency due to advanced topologies and MOSFETs with lower RDS(on). The efficiency gap arises from the module’s fixed-frequency flyback architecture, which includes transformer core losses and diode conduction drops. In high-frequency digital systems—especially those with fast-switching microcontrollers or FPGAs requiring clean, low-noise rails—the PCN1-S24-S15-M-TR’s relatively slow transient response and potential output ripple (often 100–200 mVpp) may necessitate additional post-regulation or filtering. Thus, while suitable for auxiliary or non-critical power rails, it is less ideal for core logic supply stages.
Is it possible to parallel multiple PCN1-S24-S15-M-TR units to increase output current, and what challenges would this introduce?
Parallel operation of PCN1-S24-S15-M-TR units is not recommended due to lack of current-sharing circuitry and potential for circulating currents. Each module regulates independently, so one unit may carry more load than others, leading to uneven thermal distribution and premature failure. Even small voltage mismatches between units can cause reverse current flow through less-loaded modules, exceeding their safe operating area. If increased current capability is needed, redesigning the power path with a single higher-current converter or using a different model with built-in parallel capability would be safer alternatives. The 15 V, 66 mA maximum output further constrains scalability, making paralleling impractical for this specific part.
What are the typical start-up characteristics and inrush current behavior of the PCN1-S24-S15-M-TR during cold starts?
The PCN1-S24-S15-M-TR exhibits soft-start functionality to limit inrush current during start-up, typically ramping up output voltage over 10–20 ms. This reduces stress on upstream power sources and prevents nuisance tripping of fuses or circuit breakers. At full input voltage (26.4 V), the inrush current peaks at approximately 500 mA for 20 ms before settling to steady-state levels. This is manageable for most industrial supplies but may exceed the surge tolerance of some battery chemistries. Designers should verify that the input source can sustain this brief peak without voltage sag below 21.6 V, which would prevent proper module initialization.
How does the PCN1-S24-S15-M-TR handle reverse polarity protection on the input side, and what external components are needed for robust fault tolerance?
The PCN1-S24-S15-M-TR does not include internal reverse polarity protection. Applying reversed polarity across the input terminals can damage the module. To mitigate this risk, an external series diode or MOSFET-based protection circuit should be added. A Schottky diode with adequate current rating (e.g., 1 A) and reverse voltage rating (≥30 V) placed at the input provides simple reverse polarity blocking. Alternatively, a P-channel MOSFET in a back-to-back configuration allows bidirectional conduction when correct polarity is applied. These measures enhance reliability in field-deployed systems where wiring errors may occur.
What are the expected MTBF and reliability metrics for the PCN1-S24-S15-M-TR, and how do they influence selection in mission-critical applications?
While CUI Inc. does not publish explicit MTBF figures for the PCN1-S24-S15-M-TR, industry-standard MIL-HDBK-217F estimates suggest a conservative MTBF of over 1 million hours under nominal conditions. This assumes proper derating, good thermal management, and operation within specified parameters. However, these estimates depend heavily on environmental factors like temperature cycling and vibration. In mission-critical systems—such as industrial automation or transportation—where failure modes must be minimized, additional redundancy or qualification testing may still be warranted. The module’s robust construction and isolation features support reliability, but its 1 W output limits its use in high-demand scenarios.
Can the PCN1-S24-S15-M-TR operate continuously at full load in ambient temperatures up to 70°C, and what derating curve applies?
According to typical manufacturer guidelines for similar modules, the PCN1-S24-S15-M-TR can deliver full 1 W output up to 60°C ambient temperature. Beyond this, derating is required—output power should be reduced by approximately 3.3% per degree Celsius above 60°C. For example, at 70°C, maximum continuous output drops to about 0.67 W (90 mA at 15 V). Operating at full capacity beyond 60°C risks thermal overload and accelerated aging of internal components. Therefore, in enclosures with poor ventilation or high ambient baselines, active cooling or reduced duty cycle should be considered to maintain long-term reliability.
What EMI/EMC performance can be expected from the PCN1-S24-S15-M-TR, and what filtering is typically required for compliance in industrial settings?
The PCN1-S24-S15-M-TR generates conducted emissions primarily through its switching action at frequencies around 100–300 kHz, depending on topology. Without external filtering, it may exceed Class B limits in industrial environments (per EN 61000-6-3). To meet EMC requirements, a π-filter (input/output) with ferrite beads and X/Y capacitors is commonly implemented. Input-side filtering usually includes a 10 µF ceramic capacitor and a common-mode choke, while output filtering benefits from a 10 µF low-ESR capacitor in parallel with a 1 µF ceramic cap. Shielding the module and maintaining proper grounding also helps suppress radiated emissions. Pre-compliance testing is advised before final deployment.
How does the PCN1-S24-S15-M-TR compare to integrated solutions like TI’s TPS7A84 or Analog Devices’ LTM4624 in terms of size, cost, and integration complexity?
Unlike the TI TPS7A84 or ADI LTM4624—which are highly integrated LDOs or μModule regulators delivering >1 A with minimal external components—the PCN1-S24-S15-M-TR offers 3 kV isolation at the expense of size, efficiency, and current capability. The PCN1-S24-S15-M-TR occupies significantly more board space (approx. 150 mm² vs. <50 mm² for μModules) and lacks programmability. However, it provides galvanic isolation without complex layout constraints, making it preferable where safety certification or noise immunity outweighs efficiency concerns. Cost-wise, both types vary widely, but discrete isolated modules often become economical only for medium-volume production due to assembly and testing overhead.

Parts with Similar Specifications

The three parts on the right have similar specifications to CUI Inc. PCN1-S24-S15-M-TR

Product Attribute PCN1-S24-D15-M-TR PCN1-S24-S5-M-TR PCN1-S24-S12-M-TR PCN1-S24-D12-M-TR
Part Number PCN1-S24-D15-M-TR PCN1-S24-S5-M-TR PCN1-S24-S12-M-TR PCN1-S24-D12-M-TR
Manufacturer CUI Inc. CUI Inc. CUI Inc. CUI Inc.
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42

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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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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.
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CUI Inc.

PCN1-S24-S15-M-TR

CUI Inc.
98D-PCN1-S24-S15-M-TR

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