Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
PC3H4A
Sharp Microelectronics
OPTOISO 2.5KV TRANS 4-MINI-FLAT
1347 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 1 Channel 4-Mini-Flat
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (143 Ratings)
PC3H4A
Product Overview
7928591
DiGi Electronics Part Number
PC3H4A-DGManufacturer
Sharp Microelectronics
PC3H4A
Description
OPTOISO 2.5KV TRANS 4-MINI-FLATInventory
1347 Pcs New Original In Stock
Optoisolator Transistor Output 2500Vrms 1 Channel 4-Mini-Flat
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
PC3H4A Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
-
Series
-
Product Status
Obsolete
Number of Channels
1
Voltage - Isolation
2500Vrms
Current Transfer Ratio (Min)
50% @ 1mA
Current Transfer Ratio (Max)
150% @ 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-SOIC (0.173", 4.40mm Width)
Supplier Device Package
4-Mini-Flat
Datasheet & Documents
Datasheets
Download PC3H4A Product Specification (PDF)
HTML Datasheet
PC3H4A-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
425-1344-2
425-1344-1
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
Ils sont toujours à l’écoute et proposent des conseils avisés.
December 02, 2025
Der Versand war rasch, und der Kundendienst stand mir stets freundlich zur Seite.
December 02, 2025
コストパフォーマンスが良く、対応もスピーディです。とても満足しています。
December 02, 2025
商品到着までの時間が短く、必要な時にすぐに手元に届くのが助かります。
December 02, 2025
Their honest pricing approach shows they value transparency and customer trust.
December 02, 2025
Their logistics solutions are tailored to meet our urgent project requirements.
December 02, 2025
Their pricing makes quality technology accessible for all budgets.
December 02, 2025
Pricing at DiGi Electronics is straightforward, with no surprises.
December 02, 2025
Fast turnaround times and excellent customer assistance make DiGi Electronics my go-to.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Is the PC3H4A optoisolator still viable for new designs despite being marked as obsolete by Sharp Microelectronics?
The PC3H4A is not recommended for new designs due to its obsolete status, which poses long-term supply chain risks and potential lack of manufacturer support. While it may be available from third-party distributors, sourcing inconsistencies and counterfeit risks increase over time. For new projects, consider qualified alternatives like the HCPL-354-000E or PS2815-1-A, which offer similar isolation voltage (2500Vrms), transistor output, and SMD compatibility with active lifecycle support and better availability.
Can the PC3H4A safely replace the HMHAA280R2 in a 24V industrial control interface without redesigning the PCB or driver circuitry?
Direct replacement of the HMHAA280R2 with the PC3H4A is not advised without validation. Although both are 2500Vrms optoisolators in 4-pin SMD packages, the PC3H4A has a higher typical forward voltage (1.2V vs. ~1.0V) and different CTR (Current Transfer Ratio) behavior at low currents, which may affect signal integrity in high-impedance or low-drive circuits. Additionally, the PC3H4A’s Vce saturation (200mV max) is higher than some variants of the HMHAA280R2, potentially increasing power dissipation. Re-evaluate input current requirements and output load margins before substitution.
What are the key reliability risks when using the PC3H4A in high-temperature environments near its 100°C operating limit?
Operating the PC3H4A near its 100°C maximum junction temperature significantly degrades LED efficiency and CTR over time, leading to premature failure or signal dropout. The epoxy encapsulation and internal bond wires are also more susceptible to thermal stress at elevated temperatures, increasing the risk of delamination or wire fatigue. For sustained high-temperature operation, derate the forward current by at least 30% and ensure adequate PCB thermal relief. Consider higher-reliability alternatives like the PS2815-1-A, which offers better thermal stability and is rated for extended temperature ranges in industrial applications.
How does the PC3H4A’s non-RoHS compliance impact its use in modern consumer or medical electronics designs?
The PC3H4A’s non-RoHS status makes it unsuitable for new designs in regulated markets such as the EU, where RoHS compliance is mandatory for consumer, medical, and telecom equipment. Using non-compliant components can result in product certification failures, import restrictions, and liability risks. Even if functionally adequate, the PC3H4A should be avoided in favor of RoHS-compliant substitutes like the HCPL-354-000E or PS2815-1-A, which meet environmental regulations without sacrificing performance or isolation characteristics.
What design precautions are necessary when driving the PC3H4A’s LED input in a noisy industrial environment with long trace runs?
In electrically noisy environments, long PCB traces to the PC3H4A’s input can act as antennas, picking up EMI that may falsely trigger the optocoupler or degrade signal integrity. To mitigate this, use a series current-limiting resistor close to the LED anode, add a low-value ceramic capacitor (e.g., 100nF) across the input pins near the device, and route traces away from high-dV/dt nodes. Also, ensure the driving source can maintain stable current above 1mA to stay within the guaranteed CTR range (50% min @ 1mA), as marginal drive currents exacerbate susceptibility to noise and timing jitter.
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.
PC3H4A CAD Models
Sharp Microelectronics PC3H4A PCB symbols & footprints
productDetail
