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MOC3082
Isocom Components 2004 LTD
6PIN ZERO CROSSING TRIAC OUTPUT,
21984 Pcs New Original In Stock
Optoisolator Triac Output 5300Vrms 1 Channel 6-DIP
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5.0 / 5.0
- (475 Ratings)
MOC3082
Product Overview
1913398
DiGi Electronics Part Number
MOC3082-DGManufacturer
Isocom Components 2004 LTD
MOC3082
Description
6PIN ZERO CROSSING TRIAC OUTPUT,Inventory
21984 Pcs New Original In Stock
Optoisolator Triac Output 5300Vrms 1 Channel 6-DIP
Quantity
Minimum 1
Minimum 1
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MOC3082 Technical Specifications
Category
Optoisolators, Triac, SCR Output Optoisolators
Packaging
Tube
Series
MOC308
Product Status
Active
Output Type
Triac
Zero Crossing Circuit
Yes
Number of Channels
1
Voltage - Isolation
5300Vrms
Voltage - Off State
800 V
Static dV/dt (Min)
600V/µs
Current - LED Trigger (Ift) (Max)
10mA
Current - On State (It (RMS)) (Max)
100 mA
Current - Hold (Ih)
400µA (Typ)
Turn On Time
-
Voltage - Forward (Vf) (Typ)
1.2V
Current - DC Forward (If) (Max)
50 mA
Operating Temperature
-30°C ~ 100°C
Mounting Type
Through Hole
Package / Case
6-DIP (0.300", 7.62mm)
Supplier Device Package
6-DIP
Approval Agency
VDE
Datasheet & Documents
Datasheets
Download MOC3082 Product Specification (PDF)
HTML Datasheet
MOC3082-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.49.8000
Additional Information
Other Names
56-MOC3082
56-MOC3082-DG
58-MOC3082
Standard Package
65
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
他們的物流流程高度組織化，能迅速搞定配送任務，非常值得稱讚。
Dec 02, 2025
他們的快遞速度太棒了，完全超出我的預期！
Dec 02, 2025
Their after-sales care demonstrates genuine commitment to customer success.
Dec 02, 2025
The craftsmanship of the products makes them stand out in quality.
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Frequently Asked Questions (FAQ)
What are the key reliability risks when using the MOC3082 in high-noise industrial environments, and how can I mitigate false triggering despite its 600V/µs dV/dt rating?
The MOC3082’s 600V/µs static dV/dt is sufficient for many applications, but in high-noise environments like motor drives or switch-mode power supplies, inductive kickback or fast voltage transients can still cause unintended turn-on. To mitigate this, always use a snubber circuit (e.g., 100Ω + 0.1µF film capacitor) across the triac output, ensure tight PCB layout with short traces between the optotriac and main triac, and consider adding an RC filter at the gate of the external triac. Additionally, verify that the load current remains above the 400µA hold current (Ih) to prevent erratic behavior during zero-crossing transitions.
Can I replace a MOC3082 with a MOC3062 or MOC3041 in a 240VAC lighting control circuit without redesigning the gate drive?
No—direct replacement is not recommended. While all three are zero-crossing optotriacs, the MOC3062 and MOC3041 have lower off-state voltage ratings (600V and 400V respectively) compared to the MOC3082’s 800V rating, making them unsuitable for 240VAC line applications where peak voltages reach ~340V and transients can exceed 600V. Additionally, the MOC3041 has a higher trigger current (Ift ≈ 15mA vs. 10mA max for MOC3082), which may overload your microcontroller GPIO. Stick with the MOC3082 or use the MOC3083 (also 800V) if you need a drop-in alternative.
How does the MOC3082’s zero-crossing feature impact inrush current when switching inductive loads like transformers or solenoids, and what design trade-offs should I consider?
The MOC3082’s zero-crossing circuitry significantly reduces inrush current by turning on only near voltage zero, which minimizes di/dt stress on the internal triac and extends relay life. However, for highly inductive loads, this can delay full conduction until current naturally builds, potentially causing partial-cycle operation and acoustic noise. To balance reliability and performance, pair the MOC3082 with a suitably rated external triac (e.g., BT139-600E) and ensure the total load current stays well below the 100mA RMS limit of the internal triac—ideally using the MOC3082 only as a trigger driver, not a power switch.
Is it safe to operate the MOC3082 continuously at 100°C ambient temperature given its -30°C to 100°C operating range, and what derating practices should I follow?
Operating the MOC3082 at its upper limit of 100°C is possible but risky without derating. At elevated temperatures, LED efficiency degrades, increasing the required forward current (If) to maintain reliable triggering—potentially pushing you closer to the 50mA If(max) limit. Also, the on-state current (It(RMS)) should be derated by ~0.5–1% per °C above 70°C. For long-term reliability, keep ambient temperature below 85°C and ensure adequate airflow. If your design must run near 100°C, validate performance with elevated-temperature testing and consider using a higher-current optotriac like the IL420 or a logic-output isolator with external driver.
What PCB layout practices are critical when designing with the MOC3082 in a 6-DIP through-hole package to maintain 5300Vrms isolation and avoid creepage issues?
To preserve the MOC3082’s 5300Vrms isolation rating in a 6-DIP package, maintain a minimum creepage distance of 8mm between primary (LED side) and secondary (triac side) traces on the PCB. Avoid placing any copper, silkscreen, or solder mask bridges between pins 1–2 (input) and pins 4–6 (output). Use slots or cutouts in the PCB under the package if space is constrained, and ensure no high-voltage traces run beneath the device. Since the package is through-hole, leverage the natural lead spacing—but never route secondary-side traces on the same layer as primary-side signals without proper isolation barriers. Always verify compliance with IEC 60664-1 for your specific application voltage class.
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MOC3082 CAD Models
Isocom Components 2004 LTD MOC3082 PCB symbols & footprints
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