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ILQ621-X007T
Vishay Semiconductor Opto Division
OPTOISO 5.3KV 4CH TRANS 16SMD
5725 Pcs New Original In Stock
Optoisolator Transistor Output 5300Vrms 4 Channel 16-SMD
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ILQ621-X007T
Product Overview
1157189
DiGi Electronics Part Number
ILQ621-X007T-DGManufacturer
Vishay Semiconductor Opto Division
ILQ621-X007T
Description
OPTOISO 5.3KV 4CH TRANS 16SMDInventory
5725 Pcs New Original In Stock
Optoisolator Transistor Output 5300Vrms 4 Channel 16-SMD
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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ILQ621-X007T Technical Specifications
Category
Optoisolators, Transistor, Photovoltaic Output Optoisolators
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
Number of Channels
4
Voltage - Isolation
5300Vrms
Current Transfer Ratio (Min)
50% @ 5mA
Current Transfer Ratio (Max)
600% @ 5mA
Turn On / Turn Off Time (Typ)
3µs, 2.3µs
Rise / Fall Time (Typ)
2µs, 2µs
Input Type
DC
Output Type
Transistor
Voltage - Output (Max)
70V
Current - Output / Channel
50mA
Voltage - Forward (Vf) (Typ)
1.15V
Current - DC Forward (If) (Max)
60 mA
Vce Saturation (Max)
400mV
Operating Temperature
-55°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
16-SMD, Gull Wing
Supplier Device Package
16-SMD
Base Product Number
ILQ621
Datasheet & Documents
HTML Datasheet
ILQ621-X007T-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Standard Package
750
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
お得な価格とフレンドリーなスタッフのおかげで、素敵なショッピング体験になりました！
Dec 02, 2025
Their support team is proactive in resolving issues even after purchase.
Dec 02, 2025
The fine quality craftsmanship is apparent in every product.
Dec 02, 2025
Their customer support team is friendly and efficient after sales.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the ILQ621-X007T in a high-noise industrial PLC application, and how can they be mitigated?
When integrating the ILQ621-X007T into a high-noise industrial PLC system, the main risks include signal integrity degradation due to fast switching transients and potential false triggering despite its 5300Vrms isolation rating. While the ILQ621-X007T offers strong galvanic isolation, its 3µs turn-on and 2.3µs turn-off times may not sufficiently reject very fast EMI edges without external filtering. To mitigate, use a small RC filter (e.g., 100Ω + 100pF) on each input channel and ensure tight PCB layout practices—short traces, solid ground planes, and physical separation between noisy and sensitive circuits. Also, verify that the driving microcontroller can source at least 5mA per channel consistently, as CTR degrades over time, affecting long-term reliability in marginal designs.
Can the ILQ621-X007T directly replace the HCPL-4503 in an analog sensing circuit, and what are the critical differences affecting performance?
The ILQ621-X007T is not a direct functional replacement for the HCPL-4503 in analog sensing applications because the HCPL-4503 is designed for linear feedback (with tighter CTR tolerance and matched characteristics), whereas the ILQ621-X007T is a transistor-output optoisolator with wide CTR variation (50% to 600% @ 5mA), making it unsuitable for precision linear signal transfer. Attempting to use the ILQ621-X007T in such roles risks signal distortion and temperature-dependent drift. For digital isolation tasks such as I/O buffering or microcontroller interfacing, ILQ621-X007T works well, but for analog feedback loops, consider alternatives like the IL710 or HCNR201 instead.
How does CTR degradation over time affect the reliability of the ILQ621-X007T in a temperature-varying outdoor control panel?
The ILQ621-X007T's CTR degrades with cumulative LED stress and high ambient temperatures, posing a risk in outdoor control panels where temperatures can cycle between -30°C and 90°C. At elevated temperatures near its 100°C max rating, LED output drops faster, reducing CTR and potentially causing output saturation issues or signal dropout under load. To ensure reliability, derate the input current to 80% of max (use ≤48mA instead of 60mA), implement a minimum CTR design margin (use worst-case 50% at end-of-life), and avoid prolonged operation above 85°C. Additionally, monitor CTR during qualification by testing at elevated temperature and after extended burn-in to predict degradation trends.
What PCB layout practices are essential to maintain 5300Vrms isolation with the ILQ621-X007T in a compact power supply control board?
To preserve the ILQ621-X007T's 5300Vrms isolation in compact power supply designs, maintain creepage and clearance distances per IEC 60664-1—minimum 8mm for 5.3kV, unless using a protective barrier or coating. On the PCB, split primary and secondary grounds under the ILQ621-X007T body, avoid placing high-voltage vias or traces near input/output pins, and use slot-cut isolation zones in FR4. The 16-SMD gull wing package has closely spaced pins, so ensure precise alignment and avoid solder bridging during reflow. Also, apply conformal coating if exposed to humidity or contamination, as surface leakage can compromise isolation even if spacing appears adequate.
Is the ILQ621-X007T suitable for driving small signal MOSFETs in a multi-phase motor inverter, and how does its 400mV Vce sat affect gate discharge performance?
The ILQ621-X007T can drive small signal MOSFETs in motor inverter control circuits, but its 400mV Vce saturation limits discharge efficiency when rapidly switching MOSFET gates, especially in low-voltage (<5V gate drive) or high-frequency (e.g., >20kHz) applications. With a 50mA max output per channel, it may only drive gate charges up to ~10nC effectively, risking slow turn-off and increased switching losses. For robust gate driving, use the ILQ621-X007T as a level shifter into a dedicated gate driver buffer stage rather than directly driving gates, especially for >100nC loads. Also, monitor channel crosstalk due to the 4-channel integration, and avoid simultaneous switching across all channels to prevent ground bounce.
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.
ILQ621-X007T CAD Models
Vishay Semiconductor Opto Division ILQ621-X007T PCB symbols & footprints
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