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PC3H7A
Sharp Microelectronics
OPTOISO 2.5KV TRANS 4-MINI-FLAT
12803 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 1 Channel 4-Mini-Flat
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (195 Ratings)
PC3H7A
Product Overview
7924829
DiGi Electronics Part Number
PC3H7A-DGManufacturer
Sharp Microelectronics
PC3H7A
Description
OPTOISO 2.5KV TRANS 4-MINI-FLATInventory
12803 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 1 Channel 4-Mini-Flat
Quantity
Minimum 1
Minimum 1
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PC3H7A Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
-
Series
-
Product Status
Obsolete
Number of Channels
1
Voltage - Isolation
2500Vrms
Current Transfer Ratio (Min)
35% @ 1mA
Current Transfer Ratio (Max)
70% @ 1mA
Turn On / Turn Off Time (Typ)
-
Rise / Fall Time (Typ)
4µs, 3µs
Input Type
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-SOIC (0.173", 4.40mm Width)
Supplier Device Package
4-Mini-Flat
Datasheet & Documents
Datasheets
Download PC3H7A Product Specification (PDF)
HTML Datasheet
PC3H7A-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
425-1352-1
425-1352-2
Standard Package
3,000
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
Excellent after-sales support—my issue was resolved within a short time.
December 02, 2025
Shipping is always stable and predictable, giving me peace of mind with every order.
December 02, 2025
The price benefits with DiGi Electronics help me plan my tech upgrades wisely.
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Frequently Asked Questions (FAQ)
Can the PC3H7A still be used in new designs given that it's listed as obsolete, and what are the long-term supply risks for production builds?
While the PC3H7A is marked as obsolete, it may still be viable for low-volume or short-lifecycle projects due to available stock (12,770pcs). However, for long-term production, reliance on this part carries significant supply chain risk. We recommend identifying a functional replacement early—such as the TCMT1102 or HMHA2801R2V—and verifying performance in your specific isolation, speed, and CTR requirements to avoid redesign delays later. Designers should also consider lifetime buy strategies if stuck with legacy compatibility needs.
How does the PC3H7A's 35% minimum CTR at 1mA impact circuit design, and what happens if the CTR degrades over time in high-temperature environments?
The PC3H7A's minimum CTR of 35% at 1mA means that for reliable switching, the base drive on the output transistor must account for worst-case current gain—especially under aging or elevated temperatures. At 100°C operating limits, LED efficiency degrades over time, reducing CTR further. To mitigate failure risk, design with 1.5–2x CTR margin, limit input current to ≤5mA for longevity, and avoid operation near the 80V Vce(max) to maintain transistor saturation under load.
Is the PC3H7A suitable for replacing older through-hole optocouplers like the 4N25 in surface-mount designs, and what are the key signal integrity differences?
Yes, the PC3H7A can replace through-hole optocouplers like the 4N25 in space-constrained PCBs using its 4-SOIC surface-mount package. However, its faster rise/fall times (4µs/3µs) require tighter PCB layout control to avoid noise coupling. Use a short, direct path from collector to load with a pull-up resistor near the output, and consider adding a small RC snubber if interfacing with microcontrollers sensitive to edge ringing. Also verify the 1.2V Vf matches existing drive circuitry assumptions.
What are the reliability risks of using the RoHS non-compliant PC3H7A in new industrial equipment destined for international markets?
Using the RoHS non-compliant PC3H7A in new industrial equipment risks non-compliance in EU, UK, and other regulated markets, potentially halting shipments or triggering recalls. Even if functional, this part violates RoHS Directive 2011/65/EU. For global deployments, consider RoHS-compliant alternatives like the TCMT1102 or HMHA281R2V. If PC3H7A must be used (e.g., legacy hardware), clearly document exemption eligibility under Article 7 and communicate compliance limitations to end customers.
How does the PC3H7A compare to the HMHA281R2V in high-noise industrial motor control feedback circuits, and is the voltage isolation rating sufficient?
The PC3H7A offers 2500Vrms isolation, which is adequate for most industrial motor control applications, but the HMHA281R2V often provides better noise immunity due to tighter CTR consistency and CMR performance. In high dv/dt environments, the PC3H7A’s transistor output is susceptible to false triggering if layout isn't optimized—use a grounded guard trace between input and output and ensure low-impedance emitter connection. For new designs in noisy settings, the HMHA281R2V or TCMT1102 are preferred due to improved signal integrity and availability.
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.
PC3H7A CAD Models
Sharp Microelectronics PC3H7A PCB symbols & footprints
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