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EL816(S)(TB)-V Optoisolator Equivalent & Substitute Parts
Part Overview
The EL816(S)(TB)-V is a 5000Vrms isolation optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component is classified as a single-channel optoisolator in 4-SMD surface mount package, designed for DC input applications with 50mA output current capability. The part is currently discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit integration.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Electronics Co Ltd |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 50% @ 5mA |
| Current Transfer Ratio (Max) | 600% @ 5mA |
| Rise / Fall Time (Typ) | 4µs, 3µs |
| Input Type | DC |
| Output Type | Transistor |
| Voltage - Output (Max) | 80V |
| Current - Output / Channel | 50mA |
| Voltage - Forward (Vf) (Typ) | 1.2V |
| Current - DC Forward (If) (Max) | 60mA |
| Vce Saturation (Max) | 200mV |
| Operating Temperature | -55°C ~ 110°C |
| Mounting Type | Surface Mount |
| Package / Case | 4-SMD, Gull Wing |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the EL816(S)(TB)-V are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:
Critical Matching Parameters:
- Voltage - Isolation: 5000Vrms
- Number of Channels: 1
- Output Type: Transistor
- Current Transfer Ratio (Min/Max): 50% / 600% @ 5mA
- Voltage - Output (Max): 80V
- Current - Output / Channel: 50mA
- Voltage - Forward (Vf) (Typ): 1.2V
- Current - DC Forward (If) (Max): 60mA
- Vce Saturation (Max): 200mV
- Operating Temperature: -55°C ~ 110°C
- Mounting Type: Surface Mount
- Package / Case: 4-SMD, Gull Wing
- Input Type: DC
- RoHS Status: ROHS3 Compliant
Substitute parts are grouped into two categories: Everlight EL816 Series variants (same base product with different packaging or tape configurations) and Everlight EL817 Series variants (same electrical specifications with minor timing differences in Rise/Fall Time).
Parameter Comparison
| Part Number | Manufacturer | Isolation Voltage | Channels | Output Type | CTR Min/Max | Output Current | Rise/Fall Time | Product Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|
| EL816(S)(TB)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Discontinued | 706 Pcs |
| EL816(S)(TD) | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 882 Pcs |
| EL816(S)(TD)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 828 Pcs |
| EL816(S)(TU)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 674 Pcs |
| EL816(S1)(TD) | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 651 Pcs |
| EL816(S1)(TD)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 691 Pcs |
| EL816(S1)(TU) | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 836 Pcs |
| EL816(S1)(TU)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 750 Pcs |
| EL816S1(I)(TU)-V | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 4µs, 3µs | Active | 105600 Pcs |
| EL817(S)(TD)-G | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 6µs, 8µs | Active | 1087 Pcs |
| EL817(S)(TD)-VG | Everlight | 5000Vrms | 1 | Transistor | 50% / 600% | 50mA | 6µs, 8µs | Active | 915 Pcs |
Engineering Selection Recommendations
Primary Substitutes (Identical Electrical & Mechanical Specifications):
The EL816 series variants EL816(S)(TD), EL816(S)(TD)-V, EL816(S)(TU)-V, EL816(S1)(TD), EL816(S1)(TD)-V, EL816(S1)(TU), and EL816(S1)(TU)-V are direct parametric equivalents to the EL816(S)(TB)-V. All maintain identical isolation voltage (5000Vrms), current transfer ratio specifications (50% to 600% @ 5mA), output current (50mA), and rise/fall timing (4µs, 3µs). All are ROHS3 compliant with MSL rating of 1 (Unlimited). These parts differ only in packaging configuration (tape reel variants) and are in active production status with confirmed inventory availability.
Secondary Substitute (Timing Specification Variance):
The EL817(S)(TD)-G and EL817(S)(TD)-VG variants maintain all electrical specifications identical to the EL816(S)(TB)-V with the exception of Rise/Fall Time specifications (6µs, 8µs versus 4µs, 3µs). These parts are suitable for applications where the slower switching response is acceptable. Both are ROHS3 compliant and in active production.
High-Volume Availability Option:
The EL816S1(I)(TU)-V offers the highest inventory level (105,600 Pcs) while maintaining complete parametric equivalence. This part is supplied in Tape & Reel packaging and is in active production status.
Frequently Asked Questions (FAQ)
Q: Can EL816(S)(TD)-V directly replace EL816(S)(TB)-V in existing designs?
A: Yes. The EL816(S)(TD)-V is a parametric equivalent with identical electrical specifications, isolation voltage, current transfer ratio, output current, and timing characteristics. The difference is in packaging configuration. Both are ROHS3 compliant with MSL 1 rating.
Q: What is the difference between EL816 and EL817 series substitutes?
A: The EL817 series variants (EL817(S)(TD)-G and EL817(S)(TD)-VG) differ only in Rise/Fall Time specifications: 6µs and 8µs respectively, compared to 4µs and 3µs for EL816 variants. All other electrical parameters remain identical. Selection depends on circuit timing requirements.
Q: Why is EL816S1(I)(TU)-V recommended for new designs?
A: The EL816S1(I)(TU)-V maintains complete parametric equivalence while offering the highest inventory availability (105,600 Pcs) and active production status. It is supplied in standard Tape & Reel packaging suitable for automated assembly.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance status identical to the original EL816(S)(TB)-V, with MSL rating of 1 (Unlimited).
Q: What packaging differences exist among the EL816 variants?
A: The primary difference is in tape configuration designations (TD, TU, TB). All variants use 4-SMD Gull Wing surface mount package. The designations reflect different tape and reel specifications for automated pick-and-place assembly. Electrical performance is identical across all variants.
Q: Can EL817 series parts be used in applications requiring 4µs rise time?
A: No. The EL817 series specifies 6µs rise time and 8µs fall time, which is slower than the 4µs and 3µs specifications of EL816 variants. Applications with strict timing requirements must use EL816 series parts.
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