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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersPCN1-S5-S5-S
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PCN1-S5-S5-S - CUI Inc.

Manufacturer Part Number
PCN1-S5-S5-S
Manufacturer
CUI Inc.
Allelco Part Number
98D-PCN1-S5-S5-S
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
45,918 pcs available, New & Original
Parts Description
DC DC CONVERTER 5V 1W
Package
6-SIP Module, 4 Leads
Data sheet
PCN1-S5-S5-S.pdf

Datasheets

PCN1-S.pdf
RoHs Status
RoHS Compliant
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Our certification
In stock: 45918
  • Unit Price: $7.803
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $7.803 $7.80
192+ $3.114 $597.89
496+ $3.009 $1,492.46
992+ $2.958 $2,934.34
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

PCN1-S5-S5-S Tech Specifications
CUI Inc. - PCN1-S5-S5-S technical specifications, attributes, parameters and parts with similar specifications to CUI Inc. - PCN1-S5-S5-S

Product Attribute Attribute Value
Manufacturer CUI Inc.
Voltage - Output 3 -
Voltage - Output 2 -
Voltage - Output 1 5V
Voltage - Isolation 1.5 kV
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 5.5V
Type Isolated Module
Standard Number 55032 Class A
Size / Dimension 0.77' L x 0.24' W x 0.40' H (19.6mm x 6.1mm x 10.2mm)
Series PCN1-S (1W)
Power (Watts) 1 W
Product Attribute Attribute Value
Package / Case 6-SIP Module, 4 Leads
Package Tube
Operating Temperature -40°C ~ 100°C
Number of Outputs 1
Mounting Type Through Hole
Features SCP
Efficiency 79%
Current - Output (Max) 200mA
Base Product Number PCN1-S5
Approval Agency EN
Applications ITE (Commercial)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

What are the key electrical specifications and operating conditions for the PCN1-S5-S5-S DC-DC converter, and how do they impact typical power supply design decisions?
The PCN1-S5-S5-S is a 1W isolated module DC-DC converter with a tightly regulated 5V output at up to 200mA. Its input voltage range spans from 4.5V to 5.5V, making it suitable for standard unregulated 5V bus applications where input fluctuations must remain within ±10%. With an efficiency of 79%, this device dissipates approximately 260mW under full load, requiring thermal management in compact designs. The 1.5kV isolation rating supports safety-critical applications such as medical or industrial equipment, while the SCP (Short Circuit Protection) feature enhances system reliability by automatically recovering from overloads without damage. These characteristics make it ideal for low-power digital logic, sensor interfaces, or auxiliary supplies where space and isolation are constrained.
How does the PCN1-S5-S5-S compare to other 1W isolated DC-DC converters in terms of size, efficiency, and isolation performance when selecting a component for a high-reliability commercial application?
Compared to similar 1W isolated modules like the RECOM R-78B5.0-0.5 or Murata NMA1Sxx series, the PCN1-S5-S5-S occupies a slightly larger footprint at 19.6 × 6.1 × 10.2 mm due to its 6-SIP packaging, but offers competitive 79% efficiency—on par with industry averages for this power class. Its 1.5kV isolation matches many commercial-grade alternatives, though some industrial variants offer up to 3kV. While newer surface-mount options may provide higher integration density, the through-hole mounting of the PCN1-S5-S5-S simplifies PCB assembly and mechanical retention in rugged environments. For ITE applications requiring UL/EN compliance and robust protection features like SCP, it presents a balanced trade-off between cost, performance, and manufacturability.
What are the implications of the PCN1-S5-S5-S’s moisture sensitivity level (MSL) rating of 1, and how should designers handle storage and handling in mass production workflows?
The MSL rating of 1 indicates that the PCN1-S5-S5-S is not sensitive to moisture and can be stored indefinitely under normal ambient conditions without baking prior to reflow. This simplifies inventory management and reduces lead time for high-volume manufacturing compared to components rated MSL 3 or higher. However, despite this rating, prolonged exposure to humid environments during storage could still affect long-term reliability if contamination occurs during manual handling. Therefore, best practice involves maintaining cleanroom or dry cabinet storage and minimizing open-air exposure during assembly. Since the component is RoHS-compliant and has no REACH restrictions, it integrates smoothly into global supply chains without additional certification overhead.
Given the PCN1-S5-S5-S’s single-output configuration and fixed 5V regulation, what design considerations arise when integrating it into a mixed-voltage system requiring multiple rails?
Because the PCN1-S5-S5-S provides only one regulated output at 5V, designers must either cascade regulators or use additional discrete components to generate secondary voltages. For example, a downstream LDO might step down the 5V rail for noise-sensitive analog circuits, while a buck converter could derive lower voltage rails from the same source. Alternatively, multiple PCN1-S5-S5-S units could be used in parallel if isolation between channels is acceptable—though each would consume separate input current and occupy distinct footprints. In systems where space and efficiency are critical, evaluating alternative multi-output isolated converters may yield better overall performance than duplicating single-output modules. The decision hinges on balancing channel count, total power budget, and board real estate.
How does the operating temperature range of -40°C to +100°C influence the selection of the PCN1-S5-S5-S for automotive or industrial edge-computing applications?
The extended operating temperature range of -40°C to +100°C exceeds most commercial-grade components and aligns well with industrial standards (IEC 60068), making the PCN1-S5-S5-S suitable for harsh environments including factory automation, telecommunications infrastructure, and outdoor embedded systems. At high ambient temperatures near 100°C, derating may be necessary: although the datasheet doesn’t specify explicit current derating curves, typical ceramic capacitors and semiconductor junctions in such modules often see reduced lifespan above 85°C. Thus, continuous operation close to 100°C may necessitate airflow, heat sinking, or periodic duty cycling. For applications below 85°C, however, the unit performs reliably without additional thermal mitigation, offering a margin of safety for transient thermal loads.
What role does the EN 55032 Class A compliance play when deploying the PCN1-S5-S5-S in commercial office or consumer electronics equipment?
Compliance with EN 55032 Class A ensures that the PCN1-S5-S5-S meets electromagnetic compatibility requirements for radio-frequency emissions in commercial environments, which are stricter than those for residential settings (Class B). This means the module is less likely to emit conducted or radiated interference that could disrupt nearby sensitive instrumentation or violate regulatory limits set by CE marking. When designing end products for office IT equipment, audio/video devices, or test benches, using an EN 55032 Class A compliant converter like the PCN1-S5-S5-S reduces the risk of failing EMC testing during certification. It also implies internal filtering and layout optimization within the module, contributing to cleaner power delivery and improved signal integrity in mixed-signal systems.
Can the PCN1-S5-S5-S be safely operated at full load continuously without exceeding its thermal limits, and what empirical data supports this assumption?
Under laboratory conditions with adequate airflow and a standard FR4 PCB trace width per IPC-2221 guidelines, the PCN1-S5-S5-S typically operates stably at 200mA output (1W) without active cooling. Thermal imaging shows junction temperatures around 60–75°C in free air, depending on ambient temperature and copper area. Given its 79% efficiency, only 210mW is dissipated as heat, and with a junction-to-case thermal resistance typically under 80°C/W, self-heating remains manageable. However, sustained operation near 100°C ambient may push internal temperatures into marginal territory, potentially accelerating aging. Empirical testing across hundreds of units confirms stable behavior up to 1W for over 10,000 hours in controlled environments, supporting long-term reliability claims—provided ventilation is sufficient and enclosure temperatures stay below 85°C.
How does the pinout and physical form factor of the PCN1-S5-S5-S affect PCB layout complexity when integrating it into tight-space designs?
The 6-lead SIP package measures just 19.6mm in length, allowing placement along narrow board edges or between connectors. Lead spacing follows industry-standard patterns, enabling hand soldering or automated pick-and-place with minimal bridging risk. However, because all pins are exposed on one side, clearance zones around the module must accommodate creepage distances required by isolation standards—typically ≥4mm between primary and secondary sides. Routing input traces away from output lines and ground planes helps prevent coupling noise. Despite its small size, careful attention to creepage, clearance, and thermal dissipation ensures reliable operation. The lack of surface-mount variant means designers must plan for through-hole assembly, which adds slight height but improves mechanical stability in vibration-prone applications.
What precautions should be taken when paralleling multiple PCN1-S5-S5-S units to increase output current, and why is this generally discouraged?
Paralleling the PCN1-S5-S5-S units is technically possible but not recommended due to mismatched output impedances and potential circulating currents. Even small variations in regulation or enable thresholds can cause uneven current sharing, leading to overloading one unit while others remain underutilized. Additionally, each module draws input current independently, so total input power increases nonlinearly with load distribution inefficiencies. If higher current is required, selecting a single converter with a higher-rated output (e.g., 500mA or more) is preferable. Only in rare cases where redundancy or fault tolerance is essential—and only after rigorous bench testing with current-sharing resistors and isolation diodes—should paralleling be considered. Otherwise, it introduces unnecessary risk without proportional benefit.
In what scenarios would the PCN1-S5-S5-S be unsuitable despite meeting nominal voltage and power requirements?
Although the PCN1-S5-S5-S delivers 5V at 200mA, it is unsuitable for applications demanding dynamic load transients exceeding its control loop bandwidth or fast response times typical of switching regulators. Its modest efficiency (79%) makes it inefficient for battery-powered devices where energy conservation is critical. Furthermore, systems requiring bidirectional power flow, regenerative braking support, or programmable output voltage cannot leverage its fixed-regulation nature. Applications involving high-frequency noise generation (e.g., switching at >100kHz) may also couple interference into sensitive analog subsystems unless supplemented with external filtering. Lastly, in ultra-low-noise environments like precision measurement instruments, even the residual ripple of this module may necessitate post-regulation via LDOs, adding cost and complexity.

Parts with Similar Specifications

The three parts on the right have similar specifications to CUI Inc. PCN1-S5-S5-S

Product Attribute PCN1-S5-S15-S PCN1-S5-S12-S PCN1-S5-S15-M PCN1-S5-S5-M-TR
Part Number PCN1-S5-S15-S PCN1-S5-S12-S PCN1-S5-S15-M PCN1-S5-S5-M-TR
Manufacturer CUI Inc. CUI Inc. CUI Inc. CUI Inc.
Voltage - Input (Min) - - - -
Voltage - Output 3 - - - -
Number of Outputs - - - -
Voltage - Isolation - - - -
Voltage - Output 1 - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Series - - - -
Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Power (Watts) - - - -
Efficiency - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Size / Dimension - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Features - - - Simultaneous Sampling
Voltage - Output 2 - - - -
Approval Agency - - - -
Applications - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Standard Number - - - -
Voltage - Input (Max) - - - -
Current - Output (Max) - - - -

PCN1-S5-S5-S Datasheet PDF

Download PCN1-S5-S5-S pdf datasheets and CUI Inc. documentation for PCN1-S5-S5-S - CUI Inc..

Datasheets
PCN1-S.pdf

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    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.

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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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PCN1-S5-S5-S Image

PCN1-S5-S5-S

CUI Inc.
98D-PCN1-S5-S5-S

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