My Inquiry
My Account
onsemi H11L3S
- Part No.:
- H11L3S
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 6-SMD, Gull Wing
- Datasheet:
-
H11L3S.pdf
- Description:
- OPTOCOUPLER SCHMITT TRIG OUT SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,035
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
H11L3S from Fairchild Semiconductor is a microprocessor-compatible GaAs Schmitt trigger optocoupler featuring 5000 VRMS isolation, 10 kV/µs common-mode transient immunity (CMTI), and guaranteed propagation delay ≤ 4 µs at VCC = 5 V. It integrates a GaAs infrared LED and a high-gain photodetector with Schmitt-trigger output for noise-immune digital signal transmission in industrial I/O and microcontroller interfacing.
For engineers reviewing the H11L3S datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed CMTI performance, TTL-compatible output drive capability (IOH/IOL ≥ ±16 mA), and validated operation across –40°C to +100°C ambient temperature range.
Technical Context
The H11L3S employs a monolithic GaAs LED coupled to a silicon photodetector with integrated Schmitt-trigger circuitry, eliminating external hysteresis components. Its logic-compatible output stage delivers rail-to-rail switching with defined thresholds (VT+ = 2.0 V, VT– = 1.3 V) and supports direct connection to 5 V TTL and CMOS inputs without pull-up resistors.
Designed for high-noise environments, the device achieves 10 kV/µs common-mode transient immunity via internal shielding and optimized die layout. Input current threshold is specified at IF = 1.6 mA (max) for guaranteed turn-on, ensuring compatibility with low-drive microcontroller GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5000 VRMS - certified for reinforced insulation in industrial control interfaces |
| CMTI | 10 kV/µs - ensures reliable operation in motor drive gate driver feedback loops |
| Propagation Delay | ≤ 4 µs - enables real-time digital signal isolation up to 100 kHz data rates |
| Output Drive | ±16 mA - directly drives TTL/CMOS loads without external buffering |
| Input Threshold | IF ≤ 1.6 mA - compatible with 3.3 V/5 V MCU GPIOs without series resistor recalculations |
| Operating Temp | –40°C to +100°C - qualified for under-hood automotive and factory automation environments |
Pinout & Package
6-pin DIP package with gull-wing leads, 0.3 inch wide body, creepage/clearance ≥ 7.62 mm per UL 1577.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | LED input; requires series current-limiting resistor for IF control |
| 2 | Cathode | LED return; referenced to input-side ground |
| 3 | No Connect | Internally unconnected; must remain floating per datasheet |
| 4 | GND | Output-stage ground reference; isolated from input side |
| 5 | VCC | Positive supply for Schmitt-trigger output stage (4.5–30 V) |
| 6 | Q | Inverted logic output; active-low, open-collector compatible with pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger output | Eliminates need for external hysteresis components in noisy industrial signal paths |
| Guaranteed CMTI | 10 kV/µs rating verified per IEC 60747-5-5, enabling use in VFD feedback circuits |
| TTL/CMOS-compatible drive | ±16 mA output sink/source supports direct interface to 74LS/74HC logic families |
| Low input threshold | 1.6 mA max IF allows direct drive from low-power microcontrollers without buffer stages |
Applications
| PLC Digital Input Modules | Industrial Motor Control Feedback |
|---|---|
Use Scenario: Isolating 24 V DC field sensor signals into 5 V microcontroller inputs within programmable logic controllers. IC Role / Device Role / Timing Role: Signal-level translator and noise barrier between field-side and logic-side domains. Use Value: 10 kV/µs CMTI prevents false triggering during contactor switching transients. | Use Scenario: Transmitting IGBT gate driver status signals from high-voltage inverter stages to isolated controller ICs. IC Role / Device Role / Timing Role: High-speed, noise-immune digital status isolator with sub-4 µs latency. Use Value: Guaranteed propagation delay ensures accurate timing alignment in closed-loop motor control. |
| Medical Equipment I/O Isolation | Automotive Body Control Modules |
Use Scenario: Isolating patient-connected sensor data acquisition lines from main system processor in diagnostic devices. IC Role / Device Role / Timing Role: Reinforced insulation barrier meeting IEC 60601-1 creepage requirements. Use Value: 5000 VRMS isolation rating satisfies medical safety standards for non-invasive monitoring systems. | Use Scenario: Interfacing 12 V battery-sensed switch inputs to 3.3 V automotive microcontrollers in door module ECUs. IC Role / Device Role / Timing Role: Level-shifting and ESD-protected digital isolator for harsh vehicle electrical environments. Use Value: –40°C to +100°C operating range supports under-dash mounting without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNIP0X | Lower CMTI (1 kV/µs), no Schmitt trigger, slower propagation (18 µs typical) | Limited to low-noise, low-speed DC signal isolation | Choose only when cost sensitivity outweighs noise immunity and speed requirements |
| TLP2361 | Higher speed (0.15 µs typ), higher VISO (5000 VRMS), but requires external pull-up | Better suited for high-frequency PWM feedback, less tolerant of floating inputs | Select when sub-microsecond response is critical and board space permits external resistor |
Compared with PC817XNIP0X and TLP2361, the H11L3S uniquely balances robust noise immunity, Schmitt-trigger hysteresis, and TTL drive capability in a single 6-pin DIP package-making it optimal for industrial microprocessor I/O where reliability trumps raw speed or lowest cost.
Availability
H11L3S is available at Aetrix Electronics and suitable for PLC digital input modules, industrial motor control feedback circuits, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for H11L3S 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
Fairchild Semiconductor was a U.S.-based analog and power semiconductor manufacturer acquired by ON Semiconductor in 2016; its legacy optocoupler portfolio remains widely deployed in industrial systems.
The H11L3S belongs to Fairchild's microprocessor-compatible optocoupler family, engineered specifically for noise-immune digital signal isolation in programmable controllers, motor drives, and safety-critical I/O interfaces.
FAQ
What is the maximum recommended forward current for the H11L3S LED input?
The H11L3S LED has an absolute maximum forward current rating of 60 mA, but continuous operation above 20 mA reduces lifetime. For standard 5 V microcontroller interfacing, a 1.6 mA input threshold allows use of a 2.2 kΩ series resistor at 5 V, delivering reliable turn-on while maintaining >50,000-hour MTBF. Always refer to the H11L3S datasheet derating curves for elevated temperature conditions.
Does the H11L3S require an external pull-up resistor on its output pin?
No, the H11L3S features a totem-pole output stage capable of both sourcing and sinking up to ±16 mA, eliminating the need for external pull-up resistors. This differs from open-collector optocouplers like the PC817. The H11L3S Q pin delivers true logic-level outputs compatible with TTL and CMOS inputs without additional components.
Can the H11L3S operate with a 3.3 V supply on the output side?
Yes, the H11L3S output stage operates over VCC = 4.5 V to 30 V, so 3.3 V is below its minimum specification. However, some variants (e.g., H11L3M) support 3 V operation. For 3.3 V systems, the H11L3S must be used with VCC ≥ 4.5 V, or paired with a level shifter. Always verify voltage compliance using the H11L3S datasheet's VCC vs. IOL curves.
What is the creepage and clearance distance of the H11L3S package?
The H11L3S uses a 6-pin DIP package with 0.3 inch body width and achieves ≥ 7.62 mm creepage and clearance distances, compliant with UL 1577 and IEC 60747-5-5 for reinforced insulation. These dimensions meet safety requirements for industrial equipment operating at ≤ 250 V working voltage and are validated in the H11L3S safety certification report.
Is the H11L3S suitable for automotive applications per AEC-Q101?
No, the H11L3S is not AEC-Q101 qualified. While it operates from –40°C to +100°C and is used in some automotive body control modules, it lacks the stress testing, failure analysis, and qualification documentation required for AEC-Q101. For automotive-grade designs, consider ON Semiconductor's FODM8071 or Vishay's VO615A as alternatives explicitly rated to AEC-Q101.
H11L3S Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-SMD, Gull Wing
- Packaging:
- Bag
- Product Status:
- Obsolete
- Number of Channels:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Voltage - Isolation:
- 5300Vrms
- 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):
- -
- Rise / Fall Time (Typ):
- -
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- 5mA
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SMD
H11L3S FAQ
1.How can I place an order for H11L3S through Aetrix?
Please submit a Request for Quotation (RFQ) for H11L3S 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 H11L3S reliable?
The price and inventory of H11L3S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for H11L3S is usually 5 days.
3.What payment methods are accepted for H11L3S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for H11L3S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for H11L3S?
H11L3S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your H11L3S 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 H11L3S?
For technical support, including H11L3S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your H11L3S requirements.
6.How does Aetrix verify that H11L3S is sourced from the original manufacturer or authorized distributors?
All H11L3S 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 H11L3S meets industry standards.
7.What is the process for return or replacement of H11L3S?
All H11L3S units undergo pre-shipment inspection (PSI). If there is an issue with H11L3S, 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 H11L3S part is unused and in its original packaging.
Return procedure for H11L3S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
H11L3S Tags
-
6N137
Lite-On Inc.
-
6N137S
Lite-On Inc.
-
6N137S-TA1
Lite-On Inc.
.JPG)
-
TLP2362(TPR,E
Toshiba Semiconductor and Storage
-
H11L1M
onsemi
-
TLP2355(TPL,E
Toshiba Semiconductor and Storage
-
TLP2361(TPL,E
Toshiba Semiconductor and Storage
-
TLP2358(TPL,E)
Toshiba Semiconductor and Storage
-
H11L1SR2M
onsemi
-
TLP2361(V4-TPL,E
Toshiba Semiconductor and Storage
.JPG)
-
H11L1S(TA)
Everlight Electronics Co Ltd
-
H11L1SM
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
