Request Quote
(Ships tomorrow)
TLP781F(BL-TP7,F) Equivalent & Substitute Parts
Part Overview
The TLP781F(BL-TP7,F) is a single-channel optoisolator with transistor output manufactured by Toshiba Semiconductor and Storage. This component provides 5000Vrms isolation voltage and is designed for DC input applications requiring galvanic isolation in surface mount configurations. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TLP781F(BL-TP7,F) |
| Manufacturer | Toshiba Semiconductor and Storage |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 200% @ 5mA |
| Current Transfer Ratio (Max) | 600% @ 5mA |
| Output Type | Transistor |
| Voltage - Output (Max) | 80V |
| Current - Output / Channel | 50mA |
| Operating Temperature | -55°C ~ 110°C |
| Mounting Type | Surface Mount |
| Package / Case | 4-SMD, Gull Wing |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the TLP781F(BL-TP7,F) is determined by the following critical parameters:
- Isolation Voltage: 5000Vrms (must match exactly)
- Number of Channels: 1 (single channel configuration)
- Output Type: Transistor (not MOSFET, not photodiode)
- Current Transfer Ratio Range: 200% to 600% @ 5mA
- Maximum Output Voltage: 80V
- Maximum Output Current: 50mA per channel
- Operating Temperature Range: -55°C ~ 110°C
- Package Type: 4-SMD, Gull Wing surface mount
- Input Type: DC
Parts meeting all these parameters are classified as direct functional equivalents and may be substituted without circuit redesign.
Parameter Comparison
| Parameter | TLP781F(BL-TP7,F) | TLP785F(BL-TP7,F) |
|---|---|---|
| Manufacturer | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage |
| Category | Optoisolators | Optoisolators |
| Number of Channels | 1 | 1 |
| Voltage - Isolation | 5000Vrms | 5000Vrms |
| Current Transfer Ratio (Min) | 200% @ 5mA | 200% @ 5mA |
| Current Transfer Ratio (Max) | 600% @ 5mA | 600% @ 5mA |
| Turn On / Turn Off Time (Typ) | 3µs, 3µs | 3µs, 3µs |
| Rise / Fall Time (Typ) | 2µs, 3µs | 2µs, 3µs |
| Input Type | DC | DC |
| Output Type | Transistor | Transistor |
| Voltage - Output (Max) | 80V | 80V |
| Current - Output / Channel | 50mA | 50mA |
| Voltage - Forward (Vf) (Typ) | 1.15V | 1.15V |
| Current - DC Forward (If) (Max) | 60 mA | 60 mA |
| Vce Saturation (Max) | 400mV | 400mV |
| Operating Temperature | -55°C ~ 110°C | -55°C ~ 110°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 4-SMD, Gull Wing | 4-SMD, Gull Wing |
| Supplier Device Package | 4-SMD | 4-SMD |
| Product Status | Obsolete | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.49.8000 | 8541.49.8000 |
Engineering Selection Recommendations
The TLP785F(BL-TP7,F) is a direct functional equivalent to the TLP781F(BL-TP7,F). All electrical parameters, timing characteristics, and mechanical specifications are identical. The primary distinction is product status: the TLP781F is obsolete while the TLP785F is active.
For new designs or ongoing production requiring this optoisolator specification, the TLP785F(BL-TP7,F) is the appropriate selection. Both parts share identical compliance certifications (ECCN: EAR99, HTSUS: 8541.49.8000) and moisture sensitivity ratings (MSL 1 - Unlimited), ensuring equivalent regulatory and environmental handling requirements.
Frequently Asked Questions (FAQ)
Q: Can TLP785F(BL-TP7,F) be used as a direct replacement for TLP781F(BL-TP7,F)?
A: Yes. All electrical parameters, timing specifications, output characteristics, and package dimensions are identical. No circuit modifications are required.
Q: What is the primary reason to substitute TLP781F with TLP785F?
A: The TLP781F is obsolete. The TLP785F provides the same functional performance with active product status and ongoing manufacturer support.
Q: Are the package and pinout configurations identical?
A: Yes. Both parts use 4-SMD, Gull Wing surface mount packaging with identical pin configurations.
Q: Do both parts have the same isolation voltage rating?
A: Yes. Both parts provide 5000Vrms isolation voltage.
Q: Are there any differences in thermal or environmental operating ranges?
A: No. Both parts operate across the identical temperature range of -55°C to 110°C and share the same MSL rating of 1 (Unlimited).
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts