Request Quote
(Ships tomorrow)
FOD617B Equivalent & Substitute Parts
Part Overview
The FOD617B is an optoisolator with transistor output manufactured by onsemi, designed for high-voltage isolation applications requiring 5000Vrms isolation rating. This component features a single channel configuration in a 4-DIP package and is actively produced. Equivalent and substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and regulatory compliance to support component procurement flexibility and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | FOD617B |
| Manufacturer | onsemi |
| Category | Optoisolators |
| Number of Channels | 1 |
| Voltage - Isolation | 5000Vrms |
| Current Transfer Ratio (Min) | 63% @ 10mA |
| Current Transfer Ratio (Max) | 125% @ 10mA |
| Output Type | Transistor |
| Voltage - Output (Max) | 70V |
| Current - Output / Channel | 50mA |
| Vce Saturation (Max) | 400mV |
| Operating Temperature | -55°C ~ 110°C |
| Package / Case | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the FOD617B are qualified based on the following criteria:
Electrical Compatibility Parameters:
- Isolation voltage rating equal to or greater than 5000Vrms
- Single channel configuration
- Transistor output type
- Maximum output voltage of 70V or greater
- Maximum output current of 50mA or greater
- Vce saturation maximum of 400mV or less
- Operating temperature range encompassing -55°C to 110°C or compatible subset
Mechanical Compatibility Parameters:
- 4-DIP package format with 0.300" (7.62mm) pitch
- Through-hole mounting type
Regulatory Compliance:
- ROHS3 compliant
- Active product status
The identified substitutes meet or exceed these parameters, ensuring functional and physical interchangeability within the specified application constraints.
Parameter Comparison
| Parameter | FOD617B (onsemi) | SFH615A-2 (Vishay) | SFH617A-3X001 (Vishay) |
|---|---|---|---|
| Voltage - Isolation | 5000Vrms | 5300Vrms | 5300Vrms |
| Number of Channels | 1 | 1 | 1 |
| Current Transfer Ratio (Min) | 63% @ 10mA | 63% @ 10mA | 100% @ 10mA |
| Current Transfer Ratio (Max) | 125% @ 10mA | 125% @ 10mA | 200% @ 10mA |
| Output Type | Transistor | Transistor | Transistor |
| Voltage - Output (Max) | 70V | 70V | 70V |
| Current - Output / Channel | 50mA | 50mA | 50mA |
| Vce Saturation (Max) | 400mV | 400mV | 400mV |
| Operating Temperature | -55°C ~ 110°C | -55°C ~ 100°C | -55°C ~ 110°C |
| Package / Case | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) | 4-DIP (0.300", 7.62mm) |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
Both substitute parts are qualified alternatives to the FOD617B based on regulatory compliance and product status criteria:
SFH615A-2 (Vishay Semiconductor Opto Division): This part provides equivalent isolation voltage performance at 5300Vrms with matching current transfer ratio specifications. The operating temperature range extends to 100°C maximum, which is 10°C lower than the FOD617B. All other electrical and mechanical parameters align with the primary part. ROHS3 compliance and active product status are confirmed.
SFH617A-3X001 (Vishay Semiconductor Opto Division): This part exceeds isolation voltage performance at 5300Vrms and provides enhanced current transfer ratio specifications (100% minimum to 200% maximum at 10mA). The operating temperature range matches the FOD617B at -55°C to 110°C. All electrical and mechanical parameters meet or exceed the primary part requirements. ROHS3 compliance and active product status are confirmed.
Both substitutes maintain identical package geometry, mounting type, and output electrical characteristics, supporting direct replacement in through-hole PCB applications.
Frequently Asked Questions (FAQ)
Q: Can SFH615A-2 be used in applications requiring operation above 100°C? A: No. The SFH615A-2 maximum operating temperature is 100°C, while the FOD617B and SFH617A-3X001 support operation to 110°C. Application thermal requirements must be evaluated against this specification.
Q: What is the significance of the higher current transfer ratio in SFH617A-3X001? A: The SFH617A-3X001 specifies a minimum current transfer ratio of 100% compared to 63% for the FOD617B. This indicates improved optical coupling efficiency and may provide better performance margin in signal transmission applications, though both parts meet the 50mA output current specification.
Q: Are all three parts physically interchangeable? A: Yes. All three parts use identical 4-DIP package geometry with 0.300" (7.62mm) pitch and through-hole mounting, supporting direct PCB substitution without layout modifications.
Q: Do all substitute parts meet the same regulatory requirements as the FOD617B? A: Yes. Both SFH615A-2 and SFH617A-3X001 are ROHS3 compliant with active product status, matching the compliance profile of the FOD617B.
Q: What isolation voltage margin exists between the FOD617B and its substitutes? A: The FOD617B specifies 5000Vrms isolation, while both Vishay substitutes provide 5300Vrms, representing a 6% increase in isolation voltage rating.
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