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onsemi MOC5009SR2M
- Part No.:
- MOC5009SR2M
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 6-SMD, Gull Wing
- Datasheet:
-
MOC5009SR2M.pdf
- Description:
- OPTOCOUPLER SCHMIT TRIG LP SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,063
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Product details
Overview
MOC5009SR2M from Fairchild Semiconductor is a high-speed optocoupler featuring a GaAs IRED optically coupled to an integrated Schmitt trigger detector with open-collector output. It delivers guaranteed turn-on/turn-off times under 4 µs, 1 MHz data rate capability, and built-in hysteresis for noise immunity-ideal for digital isolation in motor control interfaces and power supply feedback loops.
For engineers reviewing the MOC5009SR2M datasheet, pinout, applications, or equivalent options, this device supports TTL-to-CMOS level shifting, logic-to-logic isolation, and noise-immune line reception in industrial control systems where galvanic separation and fast edge response are critical.
Technical Context
The MOC5009SR2M integrates a gallium arsenide infrared LED on the input side and a high-speed photodetector with Schmitt-trigger output stage on the output side. Its internal hysteresis ensures clean digital transitions even under noisy conditions, and its open-collector output allows flexible pull-up configuration across 3–16 V supply rails.
It operates with a normalized ON threshold current of 4 mA (at VCC = 5 V) and OFF threshold of 0.75 mA, yielding a hysteresis ratio of 0.9. The device achieves <4 µs switching times with 270 Ω load and supports up to 1 MHz NRZ data transmission while maintaining 7500 Vpk isolation surge voltage rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Surge Voltage | 7500 Vpk (60 Hz, 1 s)-enables safe operation in mains-referenced industrial interfaces |
| Switching Time (ton/toff) | <4 µs max-supports high-speed digital signaling up to 1 MHz NRZ |
| Input Threshold Current (ON) | 4 mA @ VCC = 5 V-defines minimum drive needed to reliably assert output low |
| Hysteresis Ratio | 0.9-ensures robust noise margin between ON/OFF states in electrically noisy environments |
| Supply Voltage Range | 3–16 V-allows direct interfacing with TTL, CMOS, and microcontroller I/O without level-shifting circuitry |
| Output Configuration | Open-collector-permits wired-OR logic, flexible pull-up selection, and compatibility with multiple logic families |
| Maximum Output Current | 50 mA-sufficient to directly drive small relays, gate drivers, or logic inputs |
Pinout & Package
Package: 6-pin DIP (Dual In-line Package), through-hole mounting, standard 0.4" lead spacing per Fairchild package drawing Style 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Positive terminal of input GaAs IRED; requires current-limiting resistor when driven from logic or MCU |
| 2 | Cathode | Negative terminal of input IRED; connects to ground or logic low for LED activation |
| 3 | NC | No internal connection; must remain unconnected per datasheet |
| 4 | Output | Open-collector output transistor emitter-sinks current when active; requires external pull-up |
| 5 | Ground | Reference return for output-side circuitry; isolated from input ground |
| 6 | VCC | Positive supply for output detector stage; sets logic-high level via external pull-up |
Key Features
| Feature | Design Value |
|---|---|
| Built-in Schmitt trigger | Eliminates contact bounce and EMI-induced false triggering in switch interface applications |
| Guaranteed ton/toff < 4 µs | Enables real-time digital signal isolation in closed-loop motor control and SMPS feedback paths |
| 7500 Vpk isolation rating | Meets reinforced insulation requirements for Class I equipment in industrial power electronics |
| 1 MHz typical data rate | Supports high-frequency PWM signal transfer across isolation barrier without distortion |
| Wide VCC range (3–16 V) | Allows direct integration into mixed-voltage systems including 3.3 V, 5 V, and 12 V domains |
Applications
| Motor Control Interface | SMPS Feedback Isolation |
|---|---|
|
Use Scenario: Isolating PWM signals from microcontroller outputs to gate driver ICs in BLDC or stepper motor drives. IC Role / Device Role / Timing Role: Digital isolator providing timing-critical, noise-immune signal transfer with sub-4 µs propagation delay. Use Value: Prevents ground loop interference and protects low-voltage control logic from high-voltage power stage transients. |
Use Scenario: Transferring error amplifier output across primary-secondary boundary in flyback or forward converters. IC Role / Device Role / Timing Role: High-speed optocoupler enabling stable voltage regulation by transmitting analog-derived digital feedback with minimal latency. Use Value: Maintains loop stability at switching frequencies up to 1 MHz while meeting safety isolation standards. |
| TTL-to-CMOS Level Shifter | Noise-Immune Line Receiver |
|
Use Scenario: Interfacing 5 V TTL logic outputs to 12 V CMOS peripherals in industrial PLC backplanes. IC Role / Device Role / Timing Role: Bidirectional-compatible level translator using open-collector output and external pull-up. Use Value: Eliminates need for discrete transistor level shifters while preserving signal integrity and timing margins. |
Use Scenario: Receiving RS-232 or sensor signals in factory-floor environments with high EMI. IC Role / Device Role / Timing Role: Schmitt-trigger-based digital receiver rejecting common-mode noise and slow-edge interference. Use Value: Reduces bit errors in serial communication links without requiring additional filtering or shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PC817XNIP0X | Slower switching (ton/toff ≈ 18 µs), no Schmitt trigger, lower CMTI | Suitable for low-speed feedback but not for 1 MHz PWM or noise-sensitive line reception | Select only if cost sensitivity outweighs speed and noise immunity requirements |
| TLP2361(TPL,E | Faster (ton/toff < 0.2 µs), higher CMTI (25 kV/µs), surface-mount only | Better suited for high-frequency inverters and automotive-grade designs requiring AEC-Q101 compliance | Choose when board space, ultra-fast response, or automotive qualification are mandatory |
Compared with PC817XNIP0X and TLP2361(TPL,E, the MOC5009SR2M offers balanced performance: faster than legacy optocouplers yet more cost-effective than high-end alternatives, with proven reliability in industrial motor drives and power supplies where 4 µs timing and 7500 Vpk isolation are sufficient.
Availability
MOC5009SR2M is available at Aetrix Electronics and suitable for industrial motor control, switched-mode power supply feedback, and programmable logic controller (PLC) I/O isolation requiring stable component supply and long-term lifecycle support.
Supply support for MOC5009SR2M 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 semiconductor company specializing in power management, analog, and optoelectronic components before its acquisition by ON Semiconductor in 2016.
The MOC5009SR2M belongs to Fairchild's GlobalOptoisolator™ family, designed specifically for high-reliability digital isolation in industrial automation, power conversion, and control system interfaces.
FAQ
What is the maximum recommended forward current for the MOC5009SR2M input LED?
The MOC5009SR2M input LED has a continuous forward current rating of 60 mA and a peak forward current of 1.2 A (at 300 µs pulse width, 2% duty cycle). For reliable long-term operation, design should limit IF to ≤10 mA under typical logic-drive conditions. Exceeding 60 mA continuously risks accelerated LED degradation and reduced isolation lifetime. Always include a series current-limiting resistor calculated using VF ≈ 1.2 V at 10 mA.
Does the MOC5009SR2M require an external pull-up resistor on its output pin?
Yes, the MOC5009SR2M features an open-collector output (Pin 4), which means it can only sink current-not source it. An external pull-up resistor to VCC (Pin 6) is mandatory to establish a valid logic-high state. Typical values range from 1 kΩ to 10 kΩ depending on rise time and fan-out requirements. Without this resistor, the output remains floating and cannot drive downstream logic reliably.
How does the hysteresis in the MOC5009SR2M improve noise immunity?
The MOC5009SR2M incorporates internal Schmitt trigger hysteresis with a ratio of 0.9, meaning its turn-off threshold (0.75 mA) is significantly lower than its turn-on threshold (4 mA). This creates a 3.25 mA dead band that prevents oscillation during slow or noisy input transitions-critical in relay-driven or mechanically-switched inputs. Unlike standard comparators, this eliminates multiple toggles caused by EMI or contact bounce without external RC filtering.
Can the MOC5009SR2M be used with a 3.3 V microcontroller output?
Yes, the MOC5009SR2M input LED operates reliably with 3.3 V logic outputs when paired with an appropriate current-limiting resistor (e.g., 220 Ω yields ~10 mA IF). Its output side supports VCC from 3 V to 16 V, so it can interface directly with 3.3 V logic families using a 3.3 V pull-up. However, ensure the microcontroller's GPIO can safely sink the required LED current without violating its absolute maximum ratings.
What is the significance of the 'R2M' suffix in MOC5009SR2M?
The 'R2M' suffix in MOC5009SR2M indicates tape-and-reel packaging (R2) and RoHS-compliant, halogen-free construction (M). It denotes a 1000-unit reel quantity, Pb-free terminations, and compliance with EU Directive 2011/65/EU. This version is suitable for automated SMT assembly and meets environmental requirements for industrial and consumer electronics without compromising electrical or isolation performance.
MOC5009SR2M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- GlobalOptoisolator™
- Package/Case:
- 6-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Channels:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Voltage - Isolation:
- 7500Vpk
- 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):
- 10mA
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SMD
MOC5009SR2M FAQ
1.How can I place an order for MOC5009SR2M through Aetrix?
Please submit a Request for Quotation (RFQ) for MOC5009SR2M 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 MOC5009SR2M reliable?
The price and inventory of MOC5009SR2M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MOC5009SR2M is usually 5 days.
3.What payment methods are accepted for MOC5009SR2M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MOC5009SR2M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MOC5009SR2M?
MOC5009SR2M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MOC5009SR2M 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 MOC5009SR2M?
For technical support, including MOC5009SR2M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MOC5009SR2M requirements.
6.How does Aetrix verify that MOC5009SR2M is sourced from the original manufacturer or authorized distributors?
All MOC5009SR2M 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 MOC5009SR2M meets industry standards.
7.What is the process for return or replacement of MOC5009SR2M?
All MOC5009SR2M units undergo pre-shipment inspection (PSI). If there is an issue with MOC5009SR2M, 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 MOC5009SR2M part is unused and in its original packaging.
Return procedure for MOC5009SR2M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MOC5009SR2M Tags
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