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PC814XP
Sharp Microelectronics
OPTOISOLATOR 5KV TRANS 4SMD
2142 Pcs New Original In Stock
Optoisolator Transistor Output 5000Vrms 1 Channel 4-SMD
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Minimum 1
Minimum 1
5.0 / 5.0
- (430 Ratings)
PC814XP
Product Overview
7929523
DiGi Electronics Part Number
PC814XP-DGManufacturer
Sharp Microelectronics
PC814XP
Description
OPTOISOLATOR 5KV TRANS 4SMDInventory
2142 Pcs New Original In Stock
Optoisolator Transistor Output 5000Vrms 1 Channel 4-SMD
Quantity
Minimum 1
Minimum 1
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PC814XP Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
-
Series
-
Product Status
Obsolete
Number of Channels
1
Voltage - Isolation
5000Vrms
Current Transfer Ratio (Min)
20% @ 1mA
Current Transfer Ratio (Max)
300% @ 1mA
Turn On / Turn Off Time (Typ)
-
Rise / Fall Time (Typ)
4µs, 3µs
Input Type
AC, DC
Output Type
Transistor
Voltage - Output (Max)
80V
Current - Output / Channel
50mA
Voltage - Forward (Vf) (Typ)
1.2V
Current - DC Forward (If) (Max)
50 mA
Vce Saturation (Max)
200mV
Operating Temperature
-30°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
4-SMD, Gull Wing
Supplier Device Package
4-SMD
Datasheet & Documents
Datasheets
Download PC814XP Product Specification (PDF)
HTML Datasheet
PC814XP-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
425-1448-2
425-1448-1
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
The thoughtful, biodegradable packaging truly reflects their commitment to the environment.
December 02, 2025
The website offers personalized recommendations based on my browsing history.
December 02, 2025
Received my order quickly, and the eco-conscious packaging was a pleasant surprise—less waste and more care.
December 02, 2025
Their emphasis on transparency and speed creates a highly satisfying customer experience.
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Frequently Asked Questions (FAQ)
Can the PC814XP optoisolator be safely replaced with the SFH620A-2X007T in a 48V industrial control interface without redesigning the PCB layout?
While the SFH620A-2X007T offers similar 5kV isolation and transistor output, direct replacement of the PC814XP requires careful evaluation of pinout compatibility and CTR (Current Transfer Ratio) behavior. The PC814XP has a lower minimum CTR (20% @ 1mA) compared to the SFH620A-2X007T (~50% @ 5mA), which may affect signal integrity in low-drive applications. Additionally, the forward current requirements differ—designs optimized for the PC814XP’s 1.2V Vf at 1mA may overdrive or underutilize the SFH620A. Always verify timing margins (rise/fall ~4µs/3µs for PC814XP vs. ~3µs/3µs for SFH620A) and conduct in-circuit testing under worst-case load conditions before full migration.
What are the risks of using the obsolete PC814XP in a new medical device design requiring long-term supply stability and RoHS compliance?
Using the PC814XP in a new medical design poses significant supply chain and regulatory risks. As an obsolete, non-RoHS-compliant component, it may face sudden end-of-life discontinuation, jeopardizing production continuity. Medical devices often require 10+ year lifecycles, making reliance on obsolete parts untenable. Furthermore, non-RoHS status may conflict with global environmental regulations, especially in EU markets. We recommend transitioning to a modern RoHS-compliant alternative like the SFH620A-2X007T or Toshiba TLP785, which offer comparable performance with full lifecycle support and compliance documentation.
How does the PC814XP’s 200mV Vce saturation impact power dissipation when driving a 50mA load in a high-temperature environment near its 100°C limit?
At 50mA output current, the PC814XP’s maximum Vce saturation of 200mV results in 10mW of power dissipation per channel. While this seems low, in high ambient temperatures approaching 100°C, thermal derating and PCB copper dissipation capabilities become critical. Poor thermal design can cause localized heating, shifting the transistor into higher saturation regions and accelerating CTR degradation over time. To mitigate risk, ensure adequate copper pour under the 4-SMD package, avoid enclosing the device in high-density layouts, and consider derating the output current to 30–40mA if operating above 85°C to preserve long-term reliability.
Is the PC814XP suitable for isolating digital signals in a 24V PLC input module where noise immunity and fast switching are critical?
The PC814XP can be used in 24V PLC input applications, but its relatively slow rise/fall times (4µs/3µs) and moderate CTR may limit performance in high-speed or noisy environments. While the 5kV isolation provides robust protection against ground loops and transients, the transistor output stage lacks active pull-up, leading to slower rise times dependent on external resistor values. For faster edge rates, consider adding a Schmitt-trigger buffer on the output side. Also, ensure the input drive current is sufficient (≥1mA) to maintain CTR stability—underdriving increases propagation delay and reduces noise margin, risking signal misinterpretation in electrically harsh industrial settings.
What design precautions are needed when replacing the PC814XP with a higher-speed optocoupler like the LTV-817S in a feedback loop for a switch-mode power supply?
Replacing the PC814XP with a faster device like the LTV-817S in a SMPS feedback loop introduces timing and stability trade-offs. Although the LTV-817S offers improved CTR consistency and slightly better speed, its propagation delay characteristics differ, which can alter phase margin and potentially destabilize the control loop. The PC814XP’s inherent delay (~3–5µs typical) may have been factored into the original compensation network. Before substitution, perform Bode analysis or transient simulation to verify loop stability. Additionally, confirm that the LTV-817S’s isolation voltage (typically 5kV RMS) and package footprint are compatible, and revalidate EMI performance, as faster edges can increase high-frequency emissions.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
PC814XP CAD Models
Sharp Microelectronics PC814XP PCB symbols & footprints
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