onsemi MOC5008SR2VM
- Part No.:
- MOC5008SR2VM
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 6-SMD, Gull Wing
- Datasheet:
-
MOC5008SR2VM.pdf
- Description:
- OPTOCOUP VDE SCHMIT TRIG LP SMD
- Quantity:
- Payment:

- Shipping:

Inventory:2,638
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Product details
Overview
MOC5008SR2VM from Fairchild Semiconductor is a high-speed optocoupler with gallium arsenide IRED optically coupled to an integrated Schmitt trigger detector, designed for digital signal isolation in noise-sensitive logic interfaces. It delivers guaranteed turn-on/turn-off times under 4 µs, supports 1 MHz NRZ data rates, operates across 3–16 V supply range, and provides 7500 Vpk isolation - ideal for TTL-to-CMOS level shifting in industrial control systems.
For engineers reviewing the MOC5008SR2VM datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.6 mA ON-threshold current, 0.3 mA OFF-threshold current, hysteresis ratio ≥0.75, open-collector output configuration, and VDE 0884-certified isolation marking (denoted by "V" suffix).
Technical Context
The MOC5008SR2VM integrates a GaAs infrared LED on the input side and a monolithic photodetector with Schmitt-trigger output stage on the output side, enabling clean digital edge regeneration without external hysteresis components. Its internal hysteresis eliminates contact bounce and noise-induced false triggering in switching applications.
It functions as a unidirectional logic-level isolator with open-collector output requiring external pull-up, compatible with TTL and CMOS loads. The device is rated for continuous operation from –40°C to +85°C and supports up to 50 mA output sink current at VCC = 5 V and RL = 270 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 7500 Vpk (60 Hz, 1 s) - enables safe separation between low-voltage logic and high-voltage power domains |
| Switching Speed | ton/toff ≤ 4 µs - supports reliable 1 MHz NRZ digital signaling in real-time control loops |
| Input Threshold Current | IF(on) = 1.6 mA, IF(off) = 0.3 mA - defines precise logic transition points for stable hysteresis behavior |
| Output Configuration | Open-collector, 50 mA sink capability - allows flexible voltage translation and wired-OR bus interfacing |
| Supply Voltage Range | VCC = 3–16 V - permits direct interface with 3.3 V, 5 V, and 12 V logic/power rails |
| Hysteresis Ratio | IF(off)/IF(on) ≥ 0.75 - ensures robust noise immunity against EMI in industrial environments |
| Operating Temperature | –40°C to +85°C - validated for use in embedded controllers and motor drive PCBs |
Pinout & Package
Package: 6-pin DIP (dual in-line package), through-hole mounting, standard 0.4" lead spacing per Fairchild package outline Style 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Positive terminal of input GaAs IRED; requires series current-limiting resistor |
| 2 | Cathode | Negative terminal of input IRED; referenced to system ground or logic return |
| 3 | No Connect (NC) | Internally unconnected; must remain floating, not tied to any potential |
| 4 | Output Collector | Open-collector NPN output; sinks current when active, requires external pull-up |
| 5 | Ground | Output-side reference node; isolated from input ground |
| 6 | VCC | Positive supply for output detector stage; decoupling capacitor recommended |
Key Features
| Feature | Design Value |
|---|---|
| Built-in Schmitt trigger | Eliminates need for external hysteresis circuitry; ensures monotonic, bounce-free digital transitions |
| VDE 0884 certification option | "V" suffix indicates test-compliance to reinforced insulation requirements for safety-critical isolation |
| Microprocessor-compatible drive | Low 1.6 mA input threshold enables direct connection to GPIO pins without buffer amplification |
| Wide VCC operating range | 3–16 V support simplifies integration across mixed-voltage systems without level-shifter ICs |
| High noise immunity | Optical coupling plus hysteresis rejects >1 kV/µs common-mode transients in motor drive environments |
Applications
| Industrial Motor Control | TTL-to-CMOS Logic Interface |
|---|---|
Use Scenario: Isolating microcontroller PWM outputs from gate drivers in BLDC inverters. IC Role / Device Role / Timing Role: Digital signal isolator providing galvanic separation between low-voltage control logic and high-voltage power stage. Use Value: Prevents ground loop currents and high dv/dt noise from disrupting MCU timing while preserving <4 µs edge fidelity. |
Use Scenario: Interfacing 5 V TTL outputs to 3.3 V CMOS inputs in mixed-signal instrumentation. IC Role / Device Role / Timing Role: Level-shifting isolator with hysteresis to reject noise during voltage translation. Use Value: Enables reliable communication across voltage domains without external bias networks or Schmitt buffers. |
| Power Supply Feedback Loop | Line Receiver for Noisy Environments |
Use Scenario: Transmitting error amplifier output across isolation barrier in AC/DC SMPS feedback path. IC Role / Device Role / Timing Role: High-speed digital isolator converting analog error signal into pulse-modulated form for transmission. Use Value: Maintains loop stability with sub-4 µs latency and 7500 Vpk isolation compliance per safety standards. |
Use Scenario: Receiving serial control signals over long cables in factory automation panels. IC Role / Device Role / Timing Role: Noise-immune line receiver suppressing EMI-induced glitches on unterminated lines. Use Value: Schmitt-trigger input hysteresis rejects >100 mV of superimposed noise without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HCPL-0731 | Higher CMTI (>15 kV/µs), 10 MBd speed, SOIC-8 package | Better suited for high-frequency isolated gate driving and medical equipment | Select when >1 MHz data rate or surface-mount layout is required |
| PC817XNIP0X | Lower speed (18 µs ton), no Schmitt trigger, 5000 Vrms isolation, DIP-4 | Cost-optimized for basic DC signal isolation where hysteresis is not critical | Select only for non-critical, low-speed on/off signaling with relaxed noise immunity needs |
Compared with HCPL-0731 and PC817XNIP0X, the MOC5008SR2VM uniquely balances 1 MHz NRZ capability, built-in hysteresis, DIP-6 through-hole reliability, and VDE-certifiable isolation - making it optimal for industrial PLC I/O modules and servo amplifier enable circuits where timing precision and noise rejection are jointly essential.
Availability
MOC5008SR2VM is available at Aetrix Electronics and suitable for industrial motor control, power supply feedback, logic level shifting, and line receiver applications requiring stable component supply, long-term lifecycle assurance, and certified isolation performance.
Supply support for MOC5008SR2VM 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 solutions before its acquisition by ON Semiconductor in 2016; its legacy optocoupler portfolio remains widely deployed in industrial systems.
The MOC5008SR2VM belongs to Fairchild's GlobalOptoisolator™ family, engineered specifically for high-noise industrial environments requiring fast, hysteresis-enhanced digital isolation with safety-rated reinforcement.
FAQ
What is the isolation rating of the MOC5008SR2VM?
The MOC5008SR2VM has a 7500 Vpk isolation surge voltage rating (60 Hz, 1 second duration), tested per internal dielectric breakdown limits. This rating applies with Pins 1 and 2 shorted as one side and Pins 4, 5, and 6 shorted as the other side. The "V" suffix confirms optional VDE 0884 testing compliance, but the base isolation strength is inherent to the MOC5008SR2VM construction.
Does the MOC5008SR2VM require an external pull-up resistor on the output?
Yes, the MOC5008SR2VM features an open-collector output (Pin 4), so an external pull-up resistor to VCC (Pin 6) is mandatory to establish a valid HIGH logic level. Typical values range from 1 kΩ to 10 kΩ depending on rise time and load capacitance requirements. Without this resistor, the output remains undefined during the OFF state.
How does the hysteresis in the MOC5008SR2VM improve noise immunity?
The MOC5008SR2VM incorporates built-in hysteresis with IF(on) = 1.6 mA and IF(off) = 0.3 mA, yielding a hysteresis ratio ≥0.75. This ensures that once triggered ON, the input current must drop significantly below the turn-on threshold before the output switches OFF - preventing oscillation due to slow-rising edges or noise spikes near the switching point. This behavior is intrinsic to the MOC5008SR2VM detector design.
Can the MOC5008SR2VM operate with a 3.3 V supply on the output side?
Yes, the MOC5008SR2VM supports VCC from 3 V to 16 V, making it fully compatible with 3.3 V logic systems. At VCC = 3.3 V, VOL remains ≤0.4 V with 270 Ω load, ensuring solid LOW-level definition for downstream CMOS inputs. The MOC5008SR2VM maintains full specification compliance across this entire range without derating.
What is the meaning of "R2VM" in the MOC5008SR2VM part number?
In MOC5008SR2VM, "R2" denotes tape-and-reel packaging (2 k units per reel), "V" indicates VDE 0884 isolation certification testing, and "M" specifies halogen-free, RoHS-compliant construction. The base device is the MOC5008 - a member of the MOC5007/MOC5008/MOC5009 family differentiated by input threshold current. The full MOC5008SR2VM designation reflects packaging, safety, and environmental attributes applied to the core MOC5008 die.
MOC5008SR2VM 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):
- 4mA
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SMD
MOC5008SR2VM FAQ
1.How can I place an order for MOC5008SR2VM through Aetrix?
Please submit a Request for Quotation (RFQ) for MOC5008SR2VM 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 MOC5008SR2VM reliable?
The price and inventory of MOC5008SR2VM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MOC5008SR2VM is usually 5 days.
3.What payment methods are accepted for MOC5008SR2VM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MOC5008SR2VM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MOC5008SR2VM?
MOC5008SR2VM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MOC5008SR2VM 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 MOC5008SR2VM?
For technical support, including MOC5008SR2VM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MOC5008SR2VM requirements.
6.How does Aetrix verify that MOC5008SR2VM is sourced from the original manufacturer or authorized distributors?
All MOC5008SR2VM 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 MOC5008SR2VM meets industry standards.
7.What is the process for return or replacement of MOC5008SR2VM?
All MOC5008SR2VM units undergo pre-shipment inspection (PSI). If there is an issue with MOC5008SR2VM, 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 MOC5008SR2VM part is unused and in its original packaging.
Return procedure for MOC5008SR2VM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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