- RS Stock No.:
- 186-7262
- Mfr. Part No.:
- FODM121AR2V
- Brand:
- onsemi
Available to back order for despatch 26/09/2025
Added
Price Each (On a Reel of 2500)
£0.181
(exc. VAT)
£0.217
(inc. VAT)
Units | Per unit | Per Reel* |
2500 + | £0.181 | £452.50 |
*price indicative |
- RS Stock No.:
- 186-7262
- Mfr. Part No.:
- FODM121AR2V
- Brand:
- onsemi
Technical Reference
Legislation and Compliance
Product Details
The FODM121 series, FODM124, and FODM2701 consists of a gallium arsenide infrared emitting diode driving a phototransistor in a compact 4-pin mini-flat package. The lead pitch is 2.54 mm. The FODM2705 consists of two gallium arsenide infrared emitting diodes connected in inverse parallel for AC operation.
More than 5mm Creepage/Clearance
Compact 4-Pin Surface Mount Package (2.4mm Maximum Standoff Height)
Current Transfer Ratio in Selected Groups
DC Input:
FODM121: 50–600%
FODM121A: 100–300%
FODM121B: 50–150%
FODM121C: 100–200%
FODM124: 100% MIN
FODM2701: 50–300%
AC Input:
FODM2705: 50–300%
Applications
Digital logic inputs
Microprocessor inputs
Power supply monitor
Twisted pair line receiver
Telephone line receiver
Compact 4-Pin Surface Mount Package (2.4mm Maximum Standoff Height)
Current Transfer Ratio in Selected Groups
DC Input:
FODM121: 50–600%
FODM121A: 100–300%
FODM121B: 50–150%
FODM121C: 100–200%
FODM124: 100% MIN
FODM2701: 50–300%
AC Input:
FODM2705: 50–300%
Applications
Digital logic inputs
Microprocessor inputs
Power supply monitor
Twisted pair line receiver
Telephone line receiver
Specifications
Attribute | Value |
---|---|
Mounting Type | Surface Mount |
Output Device | Phototransistor |
Maximum Forward Voltage | 1.4V |
Number of Channels | 1 |
Number of Pins | 4 |
Package Type | MFP |
Typical Rise Time | 3µs |
Maximum Input Current | 10 mA |
Isolation Voltage | 3.75 kVrms |
Maximum Current Transfer Ratio | 600% |
Typical Fall Time | 3µs |
Minimum Current Transfer Ratio | 50% |