Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
PC3SD21YXPLF
Sharp Microelectronics
OPTOISOLATOR 5KV TRIAC 6SMD
4182 Pcs New Original In Stock
Optoisolator Triac Output 5000Vrms 1 Channel 6-SMD
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (203 Ratings)
PC3SD21YXPLF
Product Overview
7925550
DiGi Electronics Part Number
PC3SD21YXPLF-DGManufacturer
Sharp Microelectronics
PC3SD21YXPLF
Description
OPTOISOLATOR 5KV TRIAC 6SMDInventory
4182 Pcs New Original In Stock
Optoisolator Triac Output 5000Vrms 1 Channel 6-SMD
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
PC3SD21YXPLF Technical Specifications
Category
Optoisolators, Triac, SCR Output Optoisolators
Packaging
-
Series
-
Product Status
Discontinued at Digi-Key
Output Type
Triac
Zero Crossing Circuit
Yes
Number of Channels
1
Voltage - Isolation
5000Vrms
Voltage - Off State
600 V
Static dV/dt (Min)
1kV/µs
Current - LED Trigger (Ift) (Max)
-
Current - On State (It (RMS)) (Max)
100 mA
Current - Hold (Ih)
3.5mA
Turn On Time
50µs (Max)
Voltage - Forward (Vf) (Typ)
1.2V
Current - DC Forward (If) (Max)
50 mA
Operating Temperature
-30°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
6-SMD
Supplier Device Package
6-SMD
Approval Agency
CSA, UR, VDE
Base Product Number
PC3SD21
Datasheet & Documents
HTML Datasheet
PC3SD21YXPLF-DG
Environmental & Export Classification
RoHS Status
RoHS Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
425-2705-6
425-2705-2
425-2705-1
Standard Package
1,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
Their logistics tracking was precise, enabling me to plan my day around the expected delivery window.
December 02, 2025
I appreciate how swiftly DiGi Electronics handles all shipping requests, even under tight schedules.
December 02, 2025
The approachable staff make navigation and purchasing simple, all while keeping prices reasonable.
December 02, 2025
Their consistent performance in product quality and shipping speed is truly commendable.
December 02, 2025
The site’s responsiveness helps me shop efficiently without waiting.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
What are the key reliability risks when replacing PC3SD21YXPLF with a modern optoisolator triac in a 240VAC industrial control design, and how can I validate long-term performance?
When replacing the discontinued PC3SD21YXPLF, critical risks include mismatched isolation voltage margins, inferior dV/dt immunity, and lack of zero-crossing behavior—especially problematic in inductive loads. Many modern alternatives like the Toshiba TLP560G or Broadcom ACPL-W346 offer similar specs but may have lower static dV/dt ratings (<500V/µs vs. PC3SD21YXPLF’s 1kV/µs), increasing false triggering risk. Always verify isolation certification (VDE/UL) matches your system’s safety requirements and conduct accelerated life testing under peak surge conditions (e.g., IEC 61000-4-5) to confirm robustness over temperature and time.
Can the PC3SD21YXPLF safely drive a 100mA resistive load at 600VAC continuously, and what derating considerations apply near its temperature limits?
While the PC3SD21YXPLF is rated for 100mA RMS and 600V off-state voltage, continuous operation at both limits simultaneously—especially near the upper temperature range (85–100°C)—requires derating. At 100°C ambient, internal junction temperature can exceed safe limits due to self-heating, reducing effective current capacity by up to 30%. For reliable operation, limit RMS current to ≤70mA when operating above 85°C and ensure adequate PCB copper area for heat dissipation. Also, consider inrush currents from capacitive loads, which may exceed 100mA transiently despite average being lower.
How does the zero-crossing feature in PC3SD21YXPLF impact EMI and component stress in phase-controlled motor applications, and should I disable it for faster switching?
The built-in zero-crossing circuit in PC3SD21YXPLF significantly reduces EMI and inrush current by triggering only near AC voltage zero-crossings—ideal for resistive loads like heaters. However, in phase-controlled motor drives requiring precise timing (e.g., speed control), this feature limits responsiveness and introduces latency (up to 10ms). Disabling zero-crossing isn’t possible internally, so if faster switching is needed, consider non-zero-crossing alternatives like the Panasonic AQH3213A. But be aware: without zero-crossing, you’ll need external snubber circuits and stronger EMI filtering to meet conducted emissions standards (e.g., FCC Part 15).
Is the PC3SD21YXPLF suitable for 3-phase AC switching applications, and what layout precautions are needed to maintain 5kV isolation in a compact 6-SMD footprint?
The PC3SD21YXPLF can be used per phase in 3-phase systems, but each channel must be treated as an independent isolation barrier. Maintaining 5kVrms isolation in a 6-SMD package demands strict PCB layout: enforce ≥8mm creepage distance between input and output pads, avoid routing high-voltage traces under the device, and use slotting or isolation grooves in the PCB if space is constrained. Do not rely solely on solder mask for insulation. Also, ensure your system-level insulation coordination (per IEC 60664) accounts for transient overvoltages—pair with external MOVs or TVS diodes on the AC line side to protect the triac output.
Given that PC3SD21YXPLF is discontinued, what second-source or drop-in replacement options exist with verified compatibility in existing 6-SMD footprints, and what firmware or drive circuit changes might be needed?
Direct drop-in replacements are limited due to the unique 6-SMD pinout and integrated zero-crossing. The closest functional alternative is the Vishay VO3063, which shares similar isolation voltage (5300Vrms), dV/dt (1000V/µs), and zero-crossing behavior, but uses a different pinout—requiring PCB modification. Alternatively, the Renesan PS2501-1 offers a compatible footprint but lacks zero-crossing, necessitating firmware changes to implement software-based zero-cross detection. Always revalidate gate drive current: PC3SD21YXPLF triggers at low LED current (~5–10mA), while some replacements may require higher If—adjust your microcontroller or driver stage accordingly to avoid marginal triggering.
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.
PC3SD21YXPLF CAD Models
Sharp Microelectronics PC3SD21YXPLF PCB symbols & footprints
productDetail
