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onsemi H11L2TM
- Part No.:
- H11L2TM
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 6-DIP (0.400", 10.16mm)
- Datasheet:
-
H11L2TM.pdf
- Description:
- OPTOISO 4.17KV OPN COLL 6DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,434
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Product details
Overview
H11L2TM from ON Semiconductor is a 6-pin DIP Schmitt trigger output optocoupler with galium-arsenide LED input and open-collector logic-compatible output, featuring 10 mA turn-on threshold current, 0.4 V max low-level output voltage at 16 mA sink, and 4170 VACRMS isolation rating. It enables noise-immune digital signal isolation in microprocessor interfaces, AC-to-TTL conversion, and programmable power supply control.
For engineers reviewing the H11L2TM datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed hysteresis ratio (0.50–0.90), 1 MHz NRZ data rate, 3–15 V wide VCC range, and UL1577/DIN EN/IEC 60747-5-5 safety certifications - all critical for industrial I/O isolation and logic-level translation designs.
Technical Context
The H11L2TM integrates a GaAs infrared LED optically coupled to an IC detector with built-in Schmitt trigger, providing hysteresis for robust noise immunity and pulse shaping without external components. Its open-collector output supports flexible pull-up configurations across TTL, CMOS, and 5–15 V logic systems.
It operates over –40°C to +85°C ambient temperature with 850 Vpeak working insulation voltage and meets DIN EN/IEC 60747-5-5 requirements for safe electrical insulation. The device avoids latch-up and oscillation across full voltage and temperature ranges, ensuring stable switching behavior in noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Turn-On Threshold Current | 10.0 mA max - defines minimum LED drive required to guarantee output transition; enables direct microcontroller GPIO driving without amplification |
| Output Low Voltage | 0.4 V max at 16 mA sink - ensures compatible logic-low level with TTL/CMOS inputs when loaded with 270 Ω pull-up |
| Data Rate | 1.0 MHz typical (NRZ) - supports high-speed serial communication isolation up to 1 Mbps in digital interface applications |
| Isolation Voltage | 4170 VACRMS for 1 minute - satisfies reinforced insulation requirements for industrial mains-connected equipment per UL1577 |
| VCC Range | 3–15 V - allows interoperability with 3.3 V, 5 V, and 12 V logic families without level-shifting circuitry |
| Hysteresis Ratio | 0.50–0.90 - provides ≥50% separation between turn-on and turn-off thresholds for reliable noise margin in EMI-prone environments |
Pinout & Package
Package: 6-pin plastic dual in-line package (DIP), 0.300" wide body, standard through-hole mounting. Lead finish: matte tin, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED anode input - connect to current-limited source (e.g., MCU GPIO + series resistor) |
| 2 | Cathode | LED cathode - ground reference for input side; defines forward current path |
| 3 | GND | Detector ground - common return for output-side circuitry and VCC decoupling |
| 4 | VO | Open-collector output - sinks current when active; requires external pull-up to VCC for logic-high generation |
| 5 | VCC | Positive supply for detector IC - powers Schmitt trigger and output stage; range 3–15 V |
| 6 | NC | No connection - internally unconnected; must remain floating or grounded per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt trigger output | Provides hysteresis (IF(on)/IF(off) = 0.50–0.90) to reject transient noise on input signals without external RC filtering |
| Microprocessor-compatible drive | Accepts direct GPIO drive from 3.3 V/5 V MCUs with ≤10 mA IF(on) requirement - eliminates buffer stages |
| Logic-compatible output sink | Sinks 16 mA at ≤0.4 V ensures valid LOW level for TTL/CMOS loads while supporting 270 Ω pull-up for fast edge rates |
| UL1577 & IEC60747-5-5 certified | Validated 4170 VACRMS isolation and 850 Vpeak working voltage enable use in safety-critical industrial controls and power supplies |
Applications
| Industrial PLC I/O Isolation | AC Line Receiver |
|---|---|
Use Scenario: Isolating 24 V DC sensor inputs and 120/240 V AC field outputs in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Signal-level translator and galvanic barrier between field-side and logic-side domains. Use Value: Prevents ground loop currents and transient coupling while maintaining 1 MHz response for fast status updates. |
Use Scenario: Converting zero-crossing AC line signals into clean square waves for microcontroller-based energy metering. IC Role / Device Role / Timing Role: Noise-immune AC-to-digital interface with hysteresis eliminating false triggering from line harmonics. Use Value: Enables accurate cycle counting and RMS calculation without external Schmitt triggers or RC filters. |
| Programmable Power Supply Feedback | TTL-Level Serial Interface Isolation |
Use Scenario: Providing isolated feedback from secondary-side voltage sense to primary-side PWM controller in flyback converters. IC Role / Device Role / Timing Role: Digital enable/disable signal isolator with guaranteed timing margins for safety shutdown paths. Use Value: Supports fast fault response (<4 µs turn-off time) while meeting reinforced insulation requirements for Class II power supplies. |
Use Scenario: Isolating UART TX/RX lines between host MCU and RS-232/RS-485 transceivers in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional logic-level shifter and noise barrier for asynchronous serial communication. Use Value: Maintains 1 Mbps data integrity across noisy industrial bus environments without clock recovery overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler-based digital isolation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNIP0X | Phototransistor output, no Schmitt trigger; 10–20 µs switching speed; 5000 VACRMS isolation | Lacks hysteresis and high-speed capability - unsuitable for NRZ >100 kbps or noisy AC line sensing | Select only where cost sensitivity outweighs timing/noise immunity needs and data rate <100 kbps |
| TLP2362(TP,E | High-speed photovoltaic MOSFET driver; 15 MBd data rate; 3750 VACRMS; 5 V logic-compatible output | Active push-pull output eliminates external pull-up; higher cost and different footprint than DIP-6 | Choose when board space permits SMT and system requires >1 Mbps with no external components |
Compared with PC817XNIP0X and TLP2362(TP,E, the H11L2TM uniquely delivers Schmitt-triggered noise immunity, 1 MHz NRZ performance, and DIP-6 through-hole compatibility in a UL/IEC-certified package - making it optimal for legacy industrial control upgrades requiring drop-in reliability.
Availability
H11L2TM is available at Aetrix Electronics and suitable for industrial PLC I/O modules, AC line receivers, programmable power supply feedback circuits, and TTL-level serial interface isolation requiring stable component supply and long-term lifecycle support.
Supply support for H11L2TM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The H11L2TM belongs to ON Semiconductor's legacy optocoupler portfolio inherited from Fairchild, designed specifically for robust digital signal isolation in harsh industrial environments with emphasis on safety certification and noise immunity.
FAQ
What is the maximum recommended forward current for the H11L2TM LED input?
The absolute maximum continuous forward current for the H11L2TM LED is 30 mA, but the recommended operating condition is ≤10 mA to ensure reliable turn-on while preserving long-term LED luminance stability. Driving above 10 mA offers no functional benefit since the device guarantees activation at or below that threshold, and excessive current accelerates aging without improving speed or noise margin.
Does the H11L2TM require an external pull-up resistor on the VO pin?
Yes, the H11L2TM features an open-collector output (VO), so an external pull-up resistor to VCC is mandatory to generate a valid logic HIGH level. A 270 Ω resistor is specified in the datasheet for 5 V operation to achieve ≤0.4 V VOL at 16 mA sink, but values from 1 kΩ to 10 kΩ may be used depending on rise time and power trade-offs in the target application.
Can the H11L2TM operate with a 3.3 V supply on the detector side?
Yes, the H11L2TM supports VCC from 3 V to 15 V, and its output stage is fully functional at 3.3 V. At this voltage, the VOL remains ≤0.4 V when sinking up to 16 mA, ensuring compatibility with 3.3 V logic families. However, output current capability scales with VCC, so load design must verify sufficient margin for the chosen pull-up configuration.
What safety certifications apply to the H11L2TM?
The H11L2TM is certified to UL1577 (4170 VACRMS, 1 minute) and DIN EN/IEC 60747-5-5 (850 Vpeak working insulation voltage), qualifying it for reinforced insulation in industrial equipment. These ratings are validated per standardized test methods and apply directly to the H11L2TM device as shipped - no derating or additional external protection is required to meet basic safety compliance.
How does the H11L2TM differ from the H11L1M and H11L3M variants?
The H11L2TM differs from H11L1M and H11L3M solely in its turn-on threshold current: H11L1M requires ≤1.6 mA, H11L2TM ≤10.0 mA, and H11L3M ≤5.0 mA. All share identical package, pinout, isolation rating, speed, and output characteristics. The H11L2TM's higher IF(on) makes it ideal for direct MCU GPIO drive without current amplification, whereas H11L1M suits ultra-low-power or high-sensitivity sensing.
H11L2TM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-DIP (0.400", 10.16mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Channels:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Voltage - Isolation:
- 4170Vrms
- Common Mode Transient Immunity (Min):
- -
- Input Type:
- DC
- Output Type:
- Open Collector
- Current - Output / Channel:
- 50 mA
- Data Rate:
- 1MHz
- Propagation Delay tpLH / tpHL (Max):
- 4µs, 4µs
- Rise / Fall Time (Typ):
- 100ns, 100ns
- Voltage - Forward (Vf) (Typ):
- 1.2V
- Current - DC Forward (If) (Max):
- 30mA
- Voltage - Supply:
- 3V ~ 15V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 6-DIP
H11L2TM FAQ
1.How can I place an order for H11L2TM through Aetrix?
Please submit a Request for Quotation (RFQ) for H11L2TM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for H11L2TM reliable?
The price and inventory of H11L2TM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for H11L2TM is usually 5 days.
3.What payment methods are accepted for H11L2TM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for H11L2TM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for H11L2TM?
H11L2TM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your H11L2TM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for H11L2TM?
For technical support, including H11L2TM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your H11L2TM requirements.
6.How does Aetrix verify that H11L2TM is sourced from the original manufacturer or authorized distributors?
All H11L2TM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that H11L2TM meets industry standards.
7.What is the process for return or replacement of H11L2TM?
All H11L2TM units undergo pre-shipment inspection (PSI). If there is an issue with H11L2TM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The H11L2TM part is unused and in its original packaging.
Return procedure for H11L2TM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
H11L2TM Tags
-
6N137
Lite-On Inc.
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6N137S
Lite-On Inc.
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6N137S-TA1
Lite-On Inc.
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TLP2362(TPR,E
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H11L1M
onsemi
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TLP2355(TPL,E
Toshiba Semiconductor and Storage
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TLP2361(TPL,E
Toshiba Semiconductor and Storage
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TLP2358(TPL,E)
Toshiba Semiconductor and Storage
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H11L1SR2M
onsemi
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TLP2361(V4-TPL,E
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H11L1S(TA)
Everlight Electronics Co Ltd
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