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IL215AT Optoisolator Equivalent & Substitute Parts
Part Overview
The IL215AT is an optoisolator transistor with base output manufactured by Vishay Semiconductor Opto Division. This 4000Vrms isolation device operates as a single-channel optocoupler in an 8-SOIC surface mount package. The IL215AT is classified as Active product status with 1623 units in current inventory. Substitute parts are necessary when the IL215AT becomes unavailable, when alternative packaging formats are required, or when application requirements permit operation at lower isolation voltage ratings while maintaining functional compatibility.
Substiute Parts
Key Parameters
| Parameter | IL215AT Value |
|---|---|
| Manufacturer | Vishay Semiconductor Opto Division |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 4000Vrms |
| Current Transfer Ratio (Min) | 20% @ 1mA |
| Output Type | Transistor with Base |
| Voltage - Output (Max) | 30V |
| Voltage - Forward (Vf) (Typ) | 1V |
| Current - DC Forward (If) (Max) | 60 mA |
| Vce Saturation (Max) | 400mV |
| Turn On / Turn Off Time (Typ) | 3µs, 3µs |
| Operating Temperature | -55°C ~ 100°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Input Type | DC |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the IL215AT are grouped based on the following substitution criteria:
Primary Compatibility Parameters:
- Package / Case: 8-SOIC (0.154", 3.90mm Width) — all substitutes maintain identical physical footprint
- Output Type: Transistor with Base — all substitutes provide base output configuration
- Mounting Type: Surface Mount — all substitutes are surface mount compatible
- Input Type: DC — all substitutes accept DC input
- Voltage - Output (Max): 30V — all substitutes support 30V maximum output
- Vce Saturation (Max): 400mV — all substitutes maintain 400mV saturation specification
Secondary Compatibility Parameters:
- Voltage - Forward (Vf) (Typ): 1V to 1.15V — minor variation acceptable
- Current - DC Forward (If) (Max): 60 mA — all substitutes support this specification
- Operating Temperature: -40°C ~ 100°C to -55°C ~ 100°C — substitutes may have narrower range
Isolation Voltage Consideration: The IL215AT operates at 4000Vrms isolation. Substitute parts listed operate at 2500Vrms isolation. These substitutes are valid when application requirements permit operation at the lower isolation voltage rating. The 2500Vrms rating remains suitable for most industrial and consumer applications requiring galvanic isolation.
Current Transfer Ratio Variation: Substitute parts exhibit higher Current Transfer Ratio specifications (40% to 200% @ 10mA) compared to the IL215AT (20% @ 1mA). This represents improved efficiency and faster switching characteristics in substitute devices.
Parameter Comparison
| Parameter | IL215AT | MOC205M | MOC205R2M | MOC205R2VM | MOC206R2M | MOC207M | MOC207R2M | MOC207R2VM | MOC207VM | MOC211M |
|---|---|---|---|---|---|---|---|---|---|---|
| Voltage - Isolation | 4000Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms | 2500Vrms |
| Current Transfer Ratio (Min) | 20% @ 1mA | 40% @ 10mA | 40% @ 10mA | 40% @ 10mA | 63% @ 10mA | 100% @ 10mA | 100% @ 10mA | 100% @ 10mA | 100% @ 10mA | 20% @ 10mA |
| Turn On / Turn Off Time (Typ) | 3µs, 3µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs | 7.5µs, 5.7µs |
| Rise / Fall Time (Typ) | — | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs | 3.2µs, 4.7µs |
| Voltage - Output (Max) | 30V | 30V | 30V | 30V | 30V | 30V | 30V | 30V | 30V | 30V |
| Current - Output / Channel | — | 150mA | 150mA | 150mA | 150mA | 150mA | 150mA | 150mA | 150mA | 150mA |
| Voltage - Forward (Vf) (Typ) | 1V | 1.15V | 1.15V | 1.15V | 1.15V | 1.15V | 1.15V | 1.15V | 1.15V | 1.15V |
| Current - DC Forward (If) (Max) | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA | 60 mA |
| Vce Saturation (Max) | 400mV | 400mV | 400mV | 400mV | 400mV | 400mV | 400mV | 400mV | 400mV | 400mV |
| Operating Temperature | -55°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C | -40°C ~ 100°C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant | — | ROHS3 Compliant | ROHS3 Compliant | — | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | — |
Engineering Selection Recommendations
Isolation Voltage Consideration: The IL215AT provides 4000Vrms isolation. All listed substitute parts operate at 2500Vrms. Selection of a 2500Vrms substitute is appropriate when application requirements do not mandate the higher isolation voltage of the IL215AT. Verify isolation voltage requirements in the target application before substitution.
Current Transfer Ratio Selection: The IL215AT specifies 20% minimum Current Transfer Ratio at 1mA input. Substitute parts offer higher Current Transfer Ratio values (40% to 200% @ 10mA), indicating improved optical coupling efficiency. This characteristic permits lower input drive current requirements in substitute devices.
Switching Speed Characteristics: The IL215AT exhibits faster switching times (3µs turn-on, 3µs turn-off) compared to substitute parts (7.5µs turn-on, 5.7µs turn-off). Applications requiring the fastest switching response should retain the IL215AT. Substitute parts are suitable for applications where the longer switching times are acceptable.
Operating Temperature Range: The IL215AT operates across -55°C to 100°C. All substitute parts operate across -40°C to 100°C. Applications requiring operation below -40°C require the IL215AT. Standard industrial and consumer applications operate within the -40°C to 100°C range supported by substitutes.
Compliance and Regulatory Status: All listed parts maintain Active product status. MOC205R2M, MOC205R2VM, MOC207M, MOC207R2M, MOC207R2VM, and MOC207VM carry ROHS3 Compliant certification. MOC205M, MOC206R2M, and MOC211M do not specify RoHS status in provided data. All parts carry ECCN EAR99 and HTSUS 8541.49.8000 classifications.
Packaging Format Availability: Substitute parts are available in multiple packaging formats: Bulk (MOC205M, MOC206R2M, MOC211M), Cut Tape & Digi-Reel (MOC205R2M, MOC207R2M), Tape & Reel (MOC205R2VM, MOC207R2VM), Box (MOC207M), and Tube (MOC207VM). Select packaging format based on procurement and assembly requirements.
Frequently Asked Questions (FAQ)
Q: Can MOC205 series parts directly replace the IL215AT? A: MOC205 series parts are electrically compatible in 8-SOIC package configuration. The primary difference is reduced isolation voltage (2500Vrms versus 4000Vrms). Substitution is valid when application isolation requirements permit 2500Vrms operation.
Q: What is the significance of the Current Transfer Ratio difference between IL215AT and substitute parts? A: The IL215AT specifies 20% minimum CTR at 1mA input current. Substitute parts specify 40% to 200% CTR at 10mA input current. Higher CTR in substitutes indicates more efficient optical coupling, requiring less input drive current to achieve equivalent output performance.
Q: Are all substitute parts ROHS3 compliant? A: MOC205R2M, MOC205R2VM, MOC207M, MOC207R2M, MOC207R2VM, and MOC207VM carry explicit ROHS3 Compliant certification. MOC205M, MOC206R2M, and MOC211M do not specify RoHS compliance status in provided documentation.
Q: Which substitute part offers the fastest switching performance? A: All substitute parts exhibit identical switching characteristics: 7.5µs turn-on time and 5.7µs turn-off time. The IL215AT provides faster switching at 3µs turn-on and 3µs turn-off. Applications requiring the fastest response must use the IL215AT.
Q: Can I use MOC207 series parts in place of MOC205 series parts? A: MOC207 series parts are pin-compatible in 8-SOIC package. MOC207 devices offer higher Current Transfer Ratio (100% to 200% @ 10mA) compared to MOC205 (40% to 80% @ 10mA). Both series operate at 2500Vrms isolation and share identical output voltage and saturation specifications.
Q: What packaging options are available for high-volume procurement? A: MOC205R2VM and MOC207R2VM are available in Tape & Reel packaging with inventory of 180,000 and 3,524 units respectively. These formats support automated assembly processes. MOC207R2M in Cut Tape & Digi-Reel format provides 32,100 units for moderate-volume requirements.
Q: Is the operating temperature range difference significant for my application? A: The IL215AT operates from -55°C to 100°C. All substitute parts operate from -40°C to 100°C. If your application requires operation below -40°C, the IL215AT is required. Standard industrial applications operating within -40°C to 100°C can use substitute parts.
Q: Do all parts meet the same regulatory classifications? A: All listed parts carry identical ECCN EAR99 and HTSUS 8541.49.8000 classifications. RoHS compliance varies: six substitute parts carry ROHS3 Compliant certification, while three do not specify RoHS status. Verify RoHS requirements for your application before final selection.
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