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EL1012-VG Equivalent & Substitute Parts Reference
Part Overview
The EL1012-VG is a 5000Vrms optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This single-channel device in 4-SOP surface mount package is designed for galvanic isolation applications requiring high voltage isolation ratings. The part is currently active in production with 1092 units in stock. Substitute parts are identified based on matching isolation voltage, package type, output configuration, and electrical performance parameters within acceptable ranges for the optoisolator category.
Substiute Parts
Key Parameters
| Parameter | EL1012-VG Value | Unit | Substitution Relevance |
|---|---|---|---|
| Voltage - Isolation | 5000 | Vrms | Critical - Must match exactly |
| Number of Channels | 1 | Channel | Critical - Must match exactly |
| Output Type | Transistor | Type | Critical - Must match exactly |
| Package / Case | 4-SMD, Gull Wing | Package | Critical - Must match for PCB compatibility |
| Supplier Device Package | 4-SOP (2.54mm) | Package | Critical - Pitch and form factor |
| Current Transfer Ratio (Min) | 63% | @ 10mA | Important - Affects circuit performance |
| Current Transfer Ratio (Max) | 125% | @ 10mA | Important - Affects circuit performance |
| Voltage - Output (Max) | 80 | V | Important - Output voltage rating |
| Current - Output / Channel | 50 | mA | Important - Output current capability |
| Operating Temperature | -55 to 110 | °C | Important - Temperature range |
| Mounting Type | Surface Mount | Type | Critical - Assembly compatibility |
| RoHS Status | ROHS3 Compliant | Compliance | Important - Regulatory requirement |
Substitute Part Grouping Explanation
Substitute parts for the EL1012-VG are identified based on the following mandatory matching criteria:
Critical Parameters (Must Match Exactly):
- Voltage - Isolation: 5000Vrms
- Number of Channels: 1
- Output Type: Transistor
- Package / Case: 4-SMD, Gull Wing
- Mounting Type: Surface Mount
Important Parameters (Must Be Within Acceptable Range):
- Current Transfer Ratio: Substitute parts may have different CTR specifications, but must support the intended circuit application
- Voltage - Output (Max): Substitute parts rated at 70V or 80V are acceptable for applications designed for EL1012-VG
- Current - Output / Channel: All substitutes maintain 50mA output capability
- Operating Temperature: Substitute parts with -55°C to 100°C range are acceptable for most applications; EL1012-VG extends to 110°C
Compliance Parameters:
- RoHS3 Compliant status required
- Moisture Sensitivity Level 1 (Unlimited) maintained across all substitutes
The Vishay Semiconductor Opto Division TCLT series (TCLT1000, TCLT1002, TCLT1003, TCLT1005, TCLT1006, TCLT1007, TCLT1008, TCLT1009) and VOL617A series (VOL617A-1X001T, VOL617A-2X001T) meet all critical parameters and are direct substitutes. These parts differ primarily in Current Transfer Ratio specifications and packaging format (Tape & Reel vs. Cut Tape & Digi-Reel).
Parameter Comparison
| Part Number | Manufacturer | Isolation Voltage (Vrms) | CTR Min @ Test Current | CTR Max @ Test Current | Voltage Output Max (V) | Current Output (mA) | Operating Temp (°C) | Package | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| EL1012-VG | Everlight Electronics | 5000 | 63% @ 10mA | 125% @ 10mA | 80 | 50 | -55 to 110 | 4-SOP (2.54mm) | 1092 |
| TCLT1000 | Vishay Semiconductor Opto | 5000 | 50% @ 5mA | 600% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 7868 |
| TCLT1002 | Vishay Semiconductor Opto | 5000 | 63% @ 10mA | 125% @ 10mA | 70 | 50 | -55 to 100 | 4-SOP | 143200 |
| TCLT1003 | Vishay Semiconductor Opto | 5000 | 100% @ 10mA | 200% @ 10mA | 70 | 50 | -55 to 100 | 4-SOP | 48579 |
| TCLT1005 | Vishay Semiconductor Opto | 5000 | 50% @ 5mA | 150% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 17339 |
| TCLT1006 | Vishay Semiconductor Opto | 5000 | 100% @ 5mA | 300% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 30944 |
| TCLT1007 | Vishay Semiconductor Opto | 5000 | 80% @ 5mA | 160% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 32880 |
| TCLT1008 | Vishay Semiconductor Opto | 5000 | 130% @ 5mA | 260% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 59200 |
| TCLT1009 | Vishay Semiconductor Opto | 5000 | 200% @ 5mA | 400% @ 5mA | 70 | 50 | -55 to 100 | 4-SOP | 39037 |
| VOL617A-1X001T | Vishay Semiconductor Opto | 5000 | 40% @ 5mA | 80% @ 5mA | 80 | 50 | -55 to 110 | 4-SOP | 2200 |
| VOL617A-2X001T | Vishay Semiconductor Opto | 5000 | 63% @ 5mA | 125% @ 5mA | 80 | 50 | -55 to 110 | 4-SOP | 28647 |
Engineering Selection Recommendations
TCLT1002 Selection: TCLT1002 provides the closest electrical match to EL1012-VG with identical Current Transfer Ratio specifications (63% min / 125% max @ 10mA). This part is ROHS3 compliant with REACH Unaffected status. Inventory availability is 143,200 units. The operating temperature range is -55°C to 100°C, which covers most industrial applications. Output voltage rating is 70V versus EL1012-VG's 80V; this is acceptable for circuits designed within 70V limits.
VOL617A-2X001T Selection: VOL617A-2X001T matches EL1012-VG in isolation voltage, output voltage (80V), and operating temperature range (-55°C to 110°C). Current Transfer Ratio is specified at 5mA test current (63% min / 125% max) versus EL1012-VG's 10mA test current. This part is ROHS3 compliant and maintains 28,647 units in inventory. The 4-SOP package is compatible with EL1012-VG PCB layouts.
TCLT1006 Selection: TCLT1006 offers higher Current Transfer Ratio (100% min / 300% max @ 5mA) for applications requiring increased output drive capability. ROHS3 compliant with 30,944 units available. Operating temperature range is -55°C to 100°C. Output voltage is 70V.
TCLT1008 Selection: TCLT1008 provides the highest Current Transfer Ratio (130% min / 260% max @ 5mA) among TCLT series options. ROHS3 compliant with 59,200 units in stock. Suitable for applications requiring maximum output current drive within the 50mA channel limit.
VOL617A-1X001T Selection: VOL617A-1X001T is suitable for applications with lower Current Transfer Ratio requirements (40% min / 80% max @ 5mA). Maintains 80V output voltage rating and -55°C to 110°C operating range matching EL1012-VG. ROHS3 compliant with 2,200 units available. Lower inventory may impact lead time.
All recommended substitutes maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and identical ECCN/HTSUS classifications as the primary part.
Frequently Asked Questions (FAQ)
Q: Can TCLT series parts with 70V output rating replace EL1012-VG in applications designed for 80V?
A: TCLT series parts are rated for 70V maximum output voltage. They are suitable for applications where the circuit design operates within 70V limits. If the application requires the full 80V output capability of EL1012-VG, use VOL617A series parts which maintain the 80V rating.
Q: What is the difference between Current Transfer Ratio specifications at 5mA versus 10mA test current?
A: Current Transfer Ratio is measured at a specified input LED current. EL1012-VG specifies CTR at 10mA input current, while most TCLT and VOL617A parts specify CTR at 5mA input current. These are different measurement points and cannot be directly compared. Circuit design must account for the actual test current specified in the datasheet for the selected part.
Q: Are TCLT1002 and EL1012-VG electrically interchangeable?
A: TCLT1002 and EL1012-VG share identical Current Transfer Ratio specifications (63% min / 125% max @ 10mA), 5000Vrms isolation, 50mA output current, and 4-SOP package. The primary difference is output voltage rating (70V vs. 80V) and operating temperature range (-55°C to 100°C vs. -55°C to 110°C). TCLT1002 is a direct substitute for applications within these parameter limits.
Q: What is the significance of packaging format differences (Tape & Reel vs. Cut Tape & Digi-Reel)?
A: Packaging format affects supply and handling but does not impact electrical performance or PCB compatibility. Tape & Reel (TR) packaging is suitable for high-volume automated assembly. Cut Tape (CT) & Digi-Reel packaging is suitable for lower-volume or mixed-component orders. Both formats use identical 4-SOP component geometry.
Q: Can I use VOL617A-1X001T as a direct replacement for EL1012-VG?
A: VOL617A-1X001T is not a direct replacement due to lower Current Transfer Ratio (40% min / 80% max @ 5mA). However, it is a valid substitute for applications where lower CTR is acceptable. It maintains the 80V output voltage and -55°C to 110°C operating range of EL1012-VG. Circuit performance must be evaluated for the lower CTR specification.
Q: Which substitute part has the highest inventory availability?
A: TCLT1002 has the highest inventory with 143,200 units in stock. This part also provides the closest electrical match to EL1012-VG with identical CTR specifications at 10mA test current.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts (TCLT1000, TCLT1002, TCLT1003, TCLT1005, TCLT1006, TCLT1007, TCLT1008, TCLT1009, VOL617A-1X001T, VOL617A-2X001T) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).
Q: What is the operating temperature difference between EL1012-VG and TCLT series substitutes?
A: EL1012-VG operates from -55°C to 110°C. TCLT series parts operate from -55°C to 100°C. For applications requiring operation above 100°C, use VOL617A series parts which maintain the -55°C to 110°C range.
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