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PC3SD12NTZAF
Sharp Microelectronics
OPTOISOLATOR 5KV TRIAC 6DIP
35380 Pcs New Original In Stock
Optoisolator Triac Output 5000Vrms 1 Channel 6-DIP
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Minimum 1
Minimum 1
5.0 / 5.0
- (63 Ratings)
PC3SD12NTZAF
Product Overview
7928471
DiGi Electronics Part Number
PC3SD12NTZAF-DGManufacturer
Sharp Microelectronics
PC3SD12NTZAF
Description
OPTOISOLATOR 5KV TRIAC 6DIPInventory
35380 Pcs New Original In Stock
Optoisolator Triac Output 5000Vrms 1 Channel 6-DIP
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
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365 - Day Quality Guarantee - Every part fully backed.
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PC3SD12NTZAF Technical Specifications
Category
Optoisolators, Triac, SCR Output Optoisolators
Packaging
-
Series
-
Product Status
Obsolete
Output Type
Triac
Zero Crossing Circuit
No
Number of Channels
1
Voltage - Isolation
5000Vrms
Voltage - Off State
600 V
Static dV/dt (Min)
1kV/µs
Current - LED Trigger (Ift) (Max)
10mA
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
Through Hole
Package / Case
6-DIP (0.300", 7.62mm), 5 Leads
Supplier Device Package
6-DIP
Approval Agency
CSA, UR
Base Product Number
PC3SD12
Datasheet & Documents
HTML Datasheet
PC3SD12NTZAF-DG
Environmental & Export Classification
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
425-2127-5
Standard Package
50
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
Je suis impressionné par leur rapidité d'expédition et leur service après-vente très réactif.
December 02, 2025
Fast shipping coupled with environmentally sustainable packaging makes DiGi Electronics a reliable brand.
December 02, 2025
Their packaging safeguards my items perfectly, and their prices are quite competitive.
December 02, 2025
The items were carefully packaged with a lot of padding.
December 02, 2025
DiGi Electronics sets a high standard for efficiency and product excellence.
December 02, 2025
I appreciate the attention to detail in the design and the high standards of quality control.
December 02, 2025
Their post-purchase support is very attentive and prompt.
December 02, 2025
Impressive packaging that kept the product secure during transit.
December 02, 2025
Their price advantage is clear—more budget-friendly than competitors.
December 02, 2025
Their support staff is friendly and always ready to help post-purchase.
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Frequently Asked Questions (FAQ)
Can the PC3SD12NTZAF be used in new designs given its obsolete status, and what are the long-term supply and reliability risks?
While the PC3SD12NTZAF is marked as obsolete, it remains available in significant original stock (35,303 units), making it viable for short-to-mid term production runs. However, using it in new designs carries supply chain risks due to no future manufacturer replenishment. For long-term reliability, ensure inventory forecasting aligns with product lifecycle, and consider redesigning with active-pin-compatible alternatives like the MOC3020M later. Always verify end-of-life notices from Sharp Microelectronics and assess obsolescence mitigation strategies such as last-time buy or redesign planning.
How does the lack of zero-crossing detection in the PC3SD12NTZAF affect inductive load switching compared to zero-crossing optoisolators?
The PC3SD12NTZAF lacks zero-crossing circuitry, meaning it triggers the triac immediately upon LED activation regardless of AC phase. This can cause high inrush current and EMI when switching inductive loads like motors or transformers, increasing stress on the triac and downstream components. Use with snubber circuits (e.g., RC network across the triac) and ensure the load current rise time is within safe operating limits. For resistive loads like heaters, this behavior is acceptable and enables phase-angle control; for noise-sensitive applications, consider replacing with zero-crossing types like the MOC3022M if feasible.
Is the PC3SD12NTZAF compatible with 3.3V microcontroller outputs, and what current-limiting considerations are needed for the input LED?
Yes, the PC3SD12NTZAF can interface with 3.3V MCUs, but careful design of the input current-limiting resistor is essential. With a typical forward voltage (Vf) of 1.2V and a maximum LED trigger current (Ift) of 10mA, a series resistor of approximately 210Ω is required to achieve reliable triggering (using (3.3V - 1.2V) / 10mA). Ensure the microcontroller GPIO can source at least 10mA. If sourcing current is limited, consider using a transistor buffer. Operating close to Ift(max) reduces noise immunity, so derating to 12–15mA drive improves reliability in noisy environments.
What are the key differences between the PC3SD12NTZAF and the MOC3020M, and can they be used interchangeably in existing PCB layouts?
The PC3SD12NTZAF and MOC3020M are functionally similar triac-output optoisolators with 600V off-state voltage, no zero-crossing, and through-hole 6-DIP packages. They are typically interchangeable in most AC switching circuits. However, verify pinouts match (both follow standard configurations), and note that the MOC3020M has slightly lower static dV/dt immunity (1kV/µs vs. same in PC3SD12NTZAF). Also confirm isolation ratings—both offer 5kVrms—so safety certifications remain valid. Always test under worst-case load conditions when substituting, especially in high-noise or high-dV/dt environments.
How does the 3.5mA holding current (Ih) of the PC3SD12NTZAF impact performance in low-load applications, and what risks should be considered?
The PC3SD12NTZAF has a maximum holding current (Ih) of 3.5mA, meaning the load current must exceed this threshold continuously to keep the triac latched. In low-power applications (e.g., small solenoids or LED drivers under 10W), load current may dip below 3.5mA during zero crossings, causing premature turn-off and flickering or failure to sustain conduction. To mitigate, ensure minimum load current stays above 5–6mA (with safety margin), or add a passive bleeder resistor across the load. Failing to address this can result in unstable operation and increased EMI due to repeated re-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.
PC3SD12NTZAF CAD Models
Sharp Microelectronics PC3SD12NTZAF PCB symbols & footprints
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