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onsemi H11N3-M
- Part No.:
- H11N3-M
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 6-DIP (0.300", 7.62mm)
- Datasheet:
-
H11N3-M.pdf
- Description:
- OPTOCOUPLER SCHMITT-TRIG 6-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,330
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Product details
Overview
H11N3-M from ON Semiconductor is a 6-pin DIP Schmitt trigger output optocoupler with AlGaAs infrared LED input and open-collector logic-compatible detector, delivering 5 MHz NRZ data rate, 4170 VACRMS isolation voltage, and guaranteed hysteresis for noise-immune digital signal isolation in industrial control interfaces.
For engineers reviewing the H11N3-M datasheet, pinout, applications, or equivalent options, key selection criteria include input threshold current (0.8–3.2 mA), output sink capability (16 mA @ 0.5 V max), supply voltage range (4–15 V), and UL/DIN safety certifications for reinforced insulation in AC/DC interface designs.
Technical Context
The H11N3-M integrates an AlGaAs infrared LED optically coupled to a monolithic IC detector featuring a Schmitt trigger with defined hysteresis (IF(off)/IF(on) = 0.65–0.95), enabling clean pulse shaping without external components. Its open-collector output supports flexible pull-up configurations across TTL, CMOS, and microprocessor systems.
Designed for high-noise environments, it operates across −40°C to +85°C with guaranteed turn-on/turn-off thresholds, 100 ns minimum turn-on time, and 12 ns fall time. Safety-rated insulation (VIORM = 850 Vpeak, VISO = 4170 VACRMS) complies with UL1577 and DIN-EN/IEC60747-5-5 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 5 MHz typical NRZ - supports high-speed serial isolation without timing degradation |
| Isolation Voltage | 4170 VACRMS for 1 minute - meets reinforced insulation requirements for mains-connected equipment |
| Input Threshold | IF(on): 0.8–3.2 mA - ensures reliable triggering across temperature and LED aging |
| Output Sink | 16 mA at ≤0.5 V - drives standard logic loads directly without buffer stages |
| Supply Range | VCC = 4–15 V - interoperable with 5 V, 12 V, and mixed-voltage logic systems |
| Hysteresis Ratio | 0.65–0.95 - provides robust noise margin against EMI-induced false triggering |
| Operating Temp | −40°C to +85°C - qualified for industrial and embedded control ambient conditions |
Pinout & Package
Package: 6-pin PDIP (Plastic Dual In-line Package), Case 646BX, 8.51 × 6.35 mm body, 2.54 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED Anode Input | Connects to current-limited drive source; requires series resistor for IF ≤ 30 mA |
| 2 (Cathode) | LED Cathode Return | Reference for input current path; ties to ground or logic low |
| 3 (NC) | No Connect | Internally unconnected; must remain floating per datasheet |
| 4 (GND) | Detector Ground | Logic-side reference for Schmitt trigger and output stage |
| 5 (VCC) | Detector Supply | Provides power to internal IC; range 4–15 V, decoupling recommended |
| 6 (VO) | Open-Collector Output | Sinks up to 50 mA; requires external pull-up to define logic HIGH level |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt trigger hysteresis | Guaranteed IF(off)/IF(on) ratio (0.65–0.95) eliminates contact bounce and EMI-induced glitches |
| Microprocessor-compatible drive | Low IF(on) threshold (≤3.2 mA) enables direct connection to GPIO pins without amplification |
| UL & IEC safety certification | 4170 VACRMS isolation (UL1577) and 850 Vpeak working voltage (IEC60747-5-5) for certified system-level safety |
| Wide VCC range | 4–15 V operation supports legacy 5 V and modern 12 V industrial logic rails without level-shifting |
| No latch-up or oscillation | Stable operation across full temperature (−40°C to +85°C) and supply voltage ranges without external compensation |
Applications
| Logic-to-Logic Isolator | AC to TTL Conversion |
|---|---|
Use Scenario: Isolating UART or SPI signals between microcontroller and motor driver PCBs in factory automation panels. IC Role / Device Role / Timing Role: Digital signal isolator providing galvanic separation while preserving edge integrity and propagation delay consistency. Use Value: Prevents ground loop currents and common-mode transients from corrupting communication, leveraging 5 MHz bandwidth and <330 ns switching times. | Use Scenario: Converting 50/60 Hz AC line sensing signals into clean square-wave TTL inputs for zero-cross detection in SMPS controllers. IC Role / Device Role / Timing Role: AC input conditioner with built-in Schmitt hysteresis eliminating chatter during sine-wave zero crossings. Use Value: Eliminates need for external comparator and RC filtering; IF(on)/IF(off) thresholds ensure stable transition points across temperature. |
| Line Receiver | Isolated Power MOS Driver |
Use Scenario: Receiving RS-422 or long-cable digital signals in noisy PLC backplanes where EMI exceeds 1 kV/μs. IC Role / Device Role / Timing Role: Noise-immune digital line receiver using optical coupling and hysteresis to reject fast transients. Use Value: Achieves >100 V/ns common-mode rejection via 0.4 pF CISO and 10¹¹ Ω RISO, suppressing induced errors without external filtering. | Use Scenario: Driving high-side gate of N-channel MOSFET in isolated DC-DC converter feedback loop with primary-side controller. IC Role / Device Role / Timing Role: Level-shifting and isolation interface between low-voltage PWM controller and high-side gate driver circuitry. Use Value: Open-collector VO output sinks 16 mA at ≤0.5 V, enabling direct connection to gate driver enable inputs with minimal BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| H11N1M | Identical pinout, same Schmitt trigger architecture, identical 5 MHz data rate and 4170 VACRMS isolation rating | No functional difference; H11N3-M and H11N1M share identical electrical specs and safety certifications per ON Semi documentation | Select H11N3-M when ordering from distributors listing this specific variant; functionally interchangeable with H11N1M in all designs |
| PC817XNIP0X | Phototransistor output (not Schmitt), no hysteresis, slower switching (4 μs typ), lower isolation (5000 VACRMS but no IEC60747-5-5 certification) | Lacks noise immunity for high-speed or EMI-prone environments; unsuitable for NRZ data rates >100 kHz without external hysteresis | Use only in cost-sensitive, low-speed DC signal isolation where Schmitt functionality is unnecessary |
Compared with H11N1M, H11N3-M offers identical performance and drop-in compatibility; versus PC817XNIP0X, H11N3-M delivers deterministic edge timing, EMI resilience, and certified safety compliance essential for industrial digital interfaces.
Availability
H11N3-M is available at Aetrix Electronics and suitable for industrial control interfaces, isolated power supply feedback loops, and factory automation communication links requiring stable component supply, long-term lifecycle support, and certified safety isolation.
Supply support for H11N3-M 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 (now onsemi) is a global semiconductor supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The H11N3-M belongs to the H11N family of Schmitt-trigger optocouplers engineered for noise-immune digital isolation in programmable logic controllers, motor drives, and power supply feedback circuits.
FAQ
What is the maximum continuous forward current rating for the H11N3-M LED input?
The H11N3-M LED input has a maximum continuous forward current (IF) rating of 30 mA at TA = 25°C, with derating above that temperature. This value is specified in the Absolute Maximum Ratings table and must not be exceeded to ensure long-term reliability. The H11N3-M datasheet also defines a peak forward current of 100 mA for 1 s pulses at 300 pps. Operating the H11N3-M within these limits preserves LED luminous intensity over its service life.
Does the H11N3-M require an external pull-up resistor on its output pin?
Yes, the H11N3-M features an open-collector output (pin 6, VO), which requires an external pull-up resistor to VCC or another logic rail to define the HIGH state voltage level. The H11N3-M output can sink up to 50 mA, and typical designs use 270 Ω to 10 kΩ pull-ups depending on speed and load requirements. Without this resistor, the H11N3-M output remains floating and cannot drive logic HIGH.
What safety certifications does the H11N3-M hold, and what do they cover?
The H11N3-M is certified to UL1577 (4170 VACRMS for 1 minute) and DIN-EN/IEC60747-5-5 (850 Vpeak working insulation voltage). These ratings validate its suitability for reinforced insulation in end equipment. The H11N3-M achieves VIORM = 850 Vpeak and VPR = 1594 Vpeak in 100% production testing, ensuring consistent isolation barrier integrity across manufacturing lots.
Can the H11N3-M operate with a 3.3 V supply on its detector side?
No, the H11N3-M detector requires a minimum VCC of 4 V per the Electrical Characteristics table; operation at 3.3 V is outside specification and may result in undefined output behavior or failure to meet VOL ≤ 0.5 V and hysteresis guarantees. For 3.3 V systems, consider alternative optocouplers explicitly rated down to 3 V, or use a level-shifter - the H11N3-M is not designed for sub-4 V VCC operation.
How does the Schmitt trigger in the H11N3-M improve noise immunity compared to standard phototransistor optocouplers?
The Schmitt trigger in the H11N3-M introduces controlled hysteresis (IF(off)/IF(on) = 0.65–0.95), creating distinct turn-on and turn-off thresholds that prevent multiple transitions during slow or noisy input edges. Unlike standard phototransistor optocouplers - which lack hysteresis and can oscillate under marginal input conditions - the H11N3-M delivers clean, jitter-free digital outputs even with slowly rising/falling or EMI-contaminated LED drive signals.
H11N3-M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Channels:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Voltage - Isolation:
- 7500Vrms
- Common Mode Transient Immunity (Min):
- -
- Input Type:
- DC
- Output Type:
- Open Collector
- Current - Output / Channel:
- 50 mA
- Data Rate:
- 5MHz
- Propagation Delay tpLH / tpHL (Max):
- 330ns, 330ns
- Rise / Fall Time (Typ):
- -
- Voltage - Forward (Vf) (Typ):
- 1.4V
- Current - DC Forward (If) (Max):
- 10mA
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 6-DIP
H11N3-M FAQ
1.How can I place an order for H11N3-M through Aetrix?
Please submit a Request for Quotation (RFQ) for H11N3-M 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 H11N3-M reliable?
The price and inventory of H11N3-M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for H11N3-M is usually 5 days.
3.What payment methods are accepted for H11N3-M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for H11N3-M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for H11N3-M?
H11N3-M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your H11N3-M 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 H11N3-M?
For technical support, including H11N3-M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your H11N3-M requirements.
6.How does Aetrix verify that H11N3-M is sourced from the original manufacturer or authorized distributors?
All H11N3-M 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 H11N3-M meets industry standards.
7.What is the process for return or replacement of H11N3-M?
All H11N3-M units undergo pre-shipment inspection (PSI). If there is an issue with H11N3-M, 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 H11N3-M part is unused and in its original packaging.
Return procedure for H11N3-M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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