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PS8101-V-K-A Optoisolator - Equivalent & Substitute Parts
Part Overview
The PS8101-V-K-A is a single-channel optoisolator with transistor output, rated for 3750Vrms isolation voltage. Manufactured by CEL in a 6-SOIC (5-lead) surface-mount package, this component is classified as obsolete. Due to its discontinued status, equivalent and substitute optoisolators from active manufacturers are necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | PS8101-V-K-A |
|---|---|
| Manufacturer | CEL |
| Number of Channels | 1 |
| Voltage - Isolation | 3750Vrms |
| Current Transfer Ratio (Min) | 20% @ 16mA |
| Current Transfer Ratio (Max) | 35% @ 16mA |
| Turn On Time (Typ) | 500ns |
| Turn Off Time (Typ) | 600ns |
| Input Type | DC |
| Output Type | Transistor |
| Voltage - Output (Max) | 35V |
| Current - Output / Channel | 8mA |
| Voltage - Forward (Vf) (Typ) | 1.7V |
| Current - DC Forward (If) (Max) | 25mA |
| Operating Temperature Range | -55°C to 100°C |
| Mounting Type | Surface Mount |
| Package / Case | 6-SOIC (0.173", 4.40mm Width), 5 Leads |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the PS8101-V-K-A is determined by the following critical electrical and mechanical parameters:
- Isolation Voltage: Substitutes must meet or exceed 3750Vrms isolation rating
- Channel Count: Must be single-channel configuration
- Output Type: Transistor output required
- Input Type: DC input required
- Package Format: 6-SOIC surface-mount package with 5-lead configuration
- Output Voltage and Current Ratings: Maximum output voltage of 20V or higher and 8mA output current per channel
- Operating Temperature: Functional across the specified range or extended range
- Isolation Voltage at Test Current: Current Transfer Ratio measured at comparable test currents
Broadcom's R²Coupler™ series optoisolators satisfy these substitution criteria. Multiple packaging variants are available to accommodate manufacturing processes, including tube, tape-and-reel, and cut-tape configurations.
Parameter Comparison
| Parameter | PS8101-V-K-A | ACPL-M43T | ACPL-M43U-000E | ACPL-M50L-000E | ACPL-M49T-500E |
|---|---|---|---|---|---|
| Number of Channels | 1 | 1 | 1 | 1 | 1 |
| Voltage - Isolation | 3750Vrms | 4000Vrms | 3750Vrms | 3750Vrms | 4000Vrms |
| Current Transfer Ratio (Min) | 20% @ 16mA | 32% @ 10mA | 32% @ 10mA | 100% @ 3mA | 32% @ 10mA |
| Input Type | DC | DC | DC | DC | DC |
| Output Type | Transistor | Transistor | Transistor | Transistor | Transistor |
| Voltage - Output (Max) | 35V | 20V | 20V | 24V | 20V |
| Current - Output / Channel | 8mA | 8mA | 8mA | 8mA | 8mA |
| Voltage - Forward (Vf) (Typ) | 1.7V | 1.55V | 1.5V | 1.5V | 1.5V |
| Current - DC Forward (If) (Max) | 25mA | 20mA | 20mA | 20mA | 20mA |
| Operating Temperature Range | -55°C to 100°C | -40°C to 125°C | -40°C to 125°C | -40°C to 105°C | -40°C to 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 6-SOIC, 5 Leads | 6-SOIC, 5 Leads | 6-SOIC, 5 Leads | 6-SOIC, 5 Leads | 6-SOIC, 5 Leads |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active | Active | Active | Active |
Engineering Selection Recommendations
ACPL-M43T Series (ACPL-M43T, ACPL-M43T-000E, ACPL-M43T-500E, ACPL-M43T-500E)
The ACPL-M43T variants provide superior isolation voltage (4000Vrms) compared to the PS8101-V-K-A requirement of 3750Vrms. These devices carry automotive-grade qualification (AEC-Q100) and are actively manufactured by Broadcom. ACPL-M43T-000E and ACPL-M43T-500E meet ROHS3 compliance. Available in tube, tape-and-reel, and cut-tape configurations.
ACPL-M43U Series (ACPL-M43U-000E, ACPL-M43U-500E)
Direct isolation voltage match at 3750Vrms. ACPL-M43U variants maintain the same isolation specification as the PS8101-V-K-A while offering superior current transfer ratio performance at lower input currents (32-80% @ 10mA). Both versions are ROHS3 compliant and actively produced. Temperature range extends to 125°C.
ACPL-M49T Series (ACPL-M49T-000E, ACPL-M49T-500E)
Provides 4000Vrms isolation with identical electrical specifications to the M43U series. ACPL-M49T-500E maintains the highest inventory level (33,200 pieces) among substitute options. Both variants are ROHS3 compliant and rated to -40°C to 125°C.
ACPL-M50L Series (ACPL-M50L-000E, ACPL-M50L-060E)
Offers the highest current transfer ratio (100-200% @ 3mA) and maximum output voltage (24V) among available substitutes. Matches 3750Vrms isolation voltage. ROHS3 compliant. Operating temperature range is -40°C to 105°C.
Frequently Asked Questions (FAQ)
Q: Can the ACPL-M43T (4000Vrms) replace the PS8101-V-K-A (3750Vrms)?
A: Yes. The higher isolation voltage rating of the ACPL-M43T exceeds the PS8101-V-K-A specification and maintains full electrical compatibility. Both devices feature identical package configurations (6-SOIC, 5 leads) and comparable output ratings (8mA per channel).
Q: What is the difference between ACPL-M43U and ACPL-M49T?
A: Both series provide identical electrical performance with 3750Vrms isolation and 32-80% current transfer ratio at 10mA input. The ACPL-M49T has higher inventory availability and wider temperature range to 125°C. Selection depends on packaging requirements and inventory needs.
Q: Why does ACPL-M50L have different current transfer ratio specifications?
A: The ACPL-M50L is specified at a different test current (3mA) compared to other substitutes (10mA). This reflects higher isolation efficiency but requires circuit verification to ensure input current compatibility.
Q: Are all substitutes RoHS compliant?
A: ACPL-M43T-000E, ACPL-M43T-500E, ACPL-M43U-000E, ACPL-M43U-500E, ACPL-M49T-000E, ACPL-M49T-500E, ACPL-M50L-000E, and ACPL-M50L-060E are all ROHS3 compliant. ACPL-M43T and ACPL-M43T-500 are RoHS non-compliant.
Q: What packaging formats are available for these substitutes?
A: Broadcom optoisolators are available in tube, tape-and-reel (TR), and cut-tape (CT) configurations. Tube packaging is standard for development and small-quantity applications. Tape-and-reel and cut-tape formats accommodate high-volume manufacturing processes.
Q: Is automotive qualification required for substitution?
A: Automotive qualification (AEC-Q100) is provided with ACPL-M43T series variants only. Other substitutes do not carry this certification. Select ACPL-M43T if AEC-Q100 compliance is mandated.
Q: What is the temperature operating range comparison?
A: The PS8101-V-K-A operates from -55°C to 100°C. Most Broadcom substitutes extend to -40°C to 125°C (ACPL-M43T, ACPL-M43U, ACPL-M49T series). ACPL-M50L operates -40°C to 105°C. Verify circuit requirements before selecting based on temperature extremes.
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