MOC3163FM Equivalent & Substitute Parts

Part Overview

The MOC3163FM is a 7.5kV peak isolation optoisolator with triac output manufactured by onsemi in a 6-SMD surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The part features a single-channel triac output with zero-crossing detection, suitable for AC switching applications requiring galvanic isolation.

Substiute Parts

MOC3163FM

onsemiIn Stock: 900MOC3163FM Datasheet

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MOC3163SM

onsemiIn Stock: 12491MOC3163SM Datasheet

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EL3061

Everlight Electronics Co LtdIn Stock: 60320EL3061 Datasheet

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EL3062

Everlight Electronics Co LtdIn Stock: 1472EL3062 Datasheet

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EL3063

Everlight Electronics Co LtdIn Stock: 153793EL3063 Datasheet

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Q3062

QT Brightek (QTB)In Stock: 955Q3062 Datasheet

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Q3063

QT Brightek (QTB)In Stock: 737Q3063 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MOC3163FM is determined by the following critical parameters:

Primary Substitution Criteria:

• Output Type: Triac
• Number of Channels: 1
• Zero Crossing Circuit: Yes
• Voltage - Off State: 600 V
• Current - LED Trigger (Ift) (Max): 5mA or compatible
• Current - DC Forward (If) (Max): 60 mA
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitution Categories:

Category 1 - Surface Mount Direct Replacement: MOC3163SM (onsemi) maintains the same 6-SMD surface mount package and is the primary active equivalent. While isolation voltage differs (4170Vrms vs 7500Vpk), the triac output characteristics, channel count, zero-crossing function, and trigger current specifications align with the MOC3163FM's core functionality.

Category 2 - Through-Hole Alternatives: EL3061, EL3062, EL3063 (Everlight Electronics), Q3062, and Q3063 (QT Brightek) provide functional equivalence in 6-DIP through-hole packages. These parts maintain triac output, single-channel configuration, zero-crossing detection, 600V off-state voltage, and 5000Vrms isolation. Package transition from surface mount to through-hole requires PCB redesign.

Parameter Comparison

Engineering Selection Recommendations

For Surface Mount Applications (No PCB Redesign): MOC3163SM is the recommended substitute. It maintains the 6-SMD surface mount package and gull wing configuration of the MOC3163FM. Both parts are onsemi products with identical triac output architecture, single-channel configuration, and zero-crossing detection. MOC3163SM is active in production with ROHS3 compliance and UL approval. The isolation voltage specification differs (4170Vrms vs 7500Vpk), requiring circuit-level evaluation for applications with maximum isolation requirements.

For Through-Hole Applications (PCB Redesign Required): EL3063 and Q3063 are preferred selections due to matching 5mA LED trigger current specification with the MOC3163FM. Both maintain active product status, ROHS3 compliance, and comprehensive safety certifications (CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL for Everlight; UR, VDE for QT Brightek). Operating temperature range extends to -55°C ~ 100°C, exceeding the MOC3163FM specification. EL3063 offers higher inventory availability (153,745 units) compared to Q3063 (638 units).

EL3061 and EL3062 provide functional alternatives with higher LED trigger current specifications (15mA and 10mA respectively), suitable for applications with relaxed trigger current requirements. Q3062 similarly operates at 10mA trigger current.

Compliance Considerations: All substitute parts maintain 600V off-state voltage, single-channel triac output, and zero-crossing detection. Everlight and QT Brightek parts provide extended operating temperature ranges and active product status. Moisture sensitivity differs for QT Brightek parts (MSL 2A vs MSL 1), requiring storage protocol adjustment.

Frequently Asked Questions (FAQ)

Q: Can MOC3163SM directly replace MOC3163FM without PCB modification? A: Yes. MOC3163SM uses the identical 6-SMD surface mount package and gull wing configuration. Pin-to-pin compatibility is maintained. Circuit evaluation is required for applications where the 7500Vpk isolation voltage of the MOC3163FM is a critical design parameter, as MOC3163SM specifies 4170Vrms isolation.

Q: What is the primary difference between surface mount (MOC3163SM) and through-hole (EL3061, EL3062, EL3063, Q3062, Q3063) substitutes? A: Package type determines PCB footprint and assembly method. MOC3163SM maintains surface mount compatibility with the MOC3163FM. Through-hole alternatives require PCB redesign with different pad layouts and hole drilling. Electrical functionality remains equivalent across all triac output, single-channel, zero-crossing optoisolators listed.

Q: Which through-hole substitute has the closest LED trigger current specification to MOC3163FM? A: EL3063 and Q3063 both specify 5mA maximum LED trigger current, matching the MOC3163FM exactly. EL3061 specifies 15mA, EL3062 and Q3062 specify 10mA. Trigger current affects input circuit design and LED drive requirements.

Q: Are all substitute parts ROHS3 compliant? A: Yes. MOC3163SM, EL3061, EL3062, EL3063, Q3062, and Q3063 all carry ROHS3 compliance certification.

Q: What is the inventory status of substitute parts? A: MOC3163SM (onsemi) has 12,420 units in stock. EL3063 (Everlight) has the highest through-hole availability at 153,745 units. EL3062 has 1,406 units, EL3061 has 60,255 units, Q3062 has 920 units, and Q3063 has 638 units.

Q: Do QT Brightek parts (Q3062, Q3063) have different moisture sensitivity requirements than Everlight parts? A: Yes. QT Brightek parts specify MSL 2A (4 Weeks), requiring controlled storage conditions. Everlight and onsemi parts specify MSL 1 (Unlimited), allowing standard storage without moisture control. This affects component handling and shelf life management.

Q: What certifications do the substitute parts carry? A: MOC3163SM carries UL approval. Everlight parts (EL3061, EL3062, EL3063) carry CSA, DEMKO, FIMKO, NEMKO, SEMKO, and UL approvals. QT Brightek parts (Q3062, Q3063) carry UR and VDE approvals. Application requirements determine which certification set is necessary.