ILD74-X009T Vishay Integrated Circuit (Small Outline Packages) In Stock
Vishay ILD74-X009T is a dual-channel optocoupler in a small outline package with 2 separate channels, a collector-emitter breakdown voltage of 20 V, and a current transfer ratio of 12.5–35%. Maximum forward current is 60 mA and forward voltage is 1.5 V.
- Manufacturer
- Vishay
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- ILD74-X009T Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel separate configuration enables 2 independent isolated signal paths in a single small outline package
- Collector-emitter breakdown voltage of 20 V and forward current up to 60 mA for robust low-voltage signal isolation
- Current transfer ratio of 12.5% minimum to 35% nominal ensuring predictable output drive in digital logic isolation circuits
- Dark current maximum of 500 nA guarantees low leakage and reliable logic-level output switching in high-impedance loads
Applications
The ILD74-X009T is used in industrial control systems and digital communications circuits requiring galvanic isolation of 2 independent signal channels within a compact SOP footprint. Its 20 V collector-emitter rating and 60 mA maximum forward current make it suitable for microcontroller I/O isolation, relay driver circuits, and PLC input modules. The UL recognized rating supports compliance-sensitive applications in consumer and industrial equipment requiring optocoupler-based safety isolation.
Specifications
| Factory Lead Time | 111Weeks |
| YTEOL | 0 |
| Additional Feature | UL RECOGNIZED |
| Coll-Emtr Bkdn Voltage-Min | 20V |
| Configuration | SEPARATE, 2 CHANNELS |
| Current Transfer Ratio-Min | 12.5% |
| Current Transfer Ratio-Nom | 35% |
| Dark Current-Max | 500nA |
| Forward Current-Max | 0.06A |
| Forward Voltage-Max | 1.5V |
| Isolation Voltage-Max | 5300V |
| Mounting Feature | SURFACE MOUNT |
| Number of Elements | 2 |
| Optoelectronic Device Type | TRANSISTOR OUTPUT OPTOCOUPLER |
| Power Dissipation-Max | 0.15W |
| Surface Mount | YES |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.40.80.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the current transfer ratio of the ILD74-X009T, and how does it affect output drive capability?
The ILD74-X009T has a minimum current transfer ratio (CTR) of 12.5% and a nominal CTR of 35%; this means a 60 mA input forward current produces a minimum 7.5 mA output collector current, which is sufficient to directly drive most logic-level inputs or small relay coils without additional amplification.
How many isolated channels does the ILD74-X009T provide, and can they be driven independently?
The ILD74-X009T provides 2 separate, independent optocoupler channels in a single small outline package; each channel has its own LED input and phototransistor output with no shared circuitry, allowing each channel to isolate a different signal source at up to 20 V collector-emitter with up to 60 mA forward current independently.
What is the dark current specification of the ILD74-X009T, and why is it important in digital isolation designs?
The maximum dark current is 500 nA, which represents the leakage current through the output phototransistor when the LED input is off; keeping dark current below 500 nA ensures that the output logic level remains a valid LOW state in high-impedance circuits, preventing false triggering in sensitive microcontroller inputs operating at 3.3 V or 5 V.
Is the Vishay ILD74-X009T suitable for use in UL-recognized safety-critical applications?
Yes, the ILD74-X009T carries UL recognition, making it compliant for use in UL-listed end products that require optocoupler isolation for operator safety; it operates with a 1.5 V maximum forward voltage and is rated for industrial temperature ranges, supporting deployment in control panels and communication interfaces requiring documented component safety certification.
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