ProductsMOSFET Output SSRs
MOSFET Output SSRs
- Blocking voltage 50–1200 V
- Load current 35–6000 mA
- Isolation voltage 300–5000 Vrms
MOS Output Solid State Relays (SSRs) are the most reliable, technically advanced logic-to-power interface devices available. Their basic function is to take a low current signal from a microprocessor to control the switching of both AC and DC loads, while providing an isolation barrier between logic and power.

Advantages
While this function is common to all relays, SSRs provide distinct advantages over their mechanical counterparts including:
- Long life, fast and reliable switching
- Bounce-free switching
- Optical input-to-output isolation up to 5000 Vrms, and beyond
- Low drive current options (<1 mA)
- Current limiting option (part number ending with -L)
- Current interrupt option — the SSR acts like a re-settable fuse
- Small package size, as small as a 5 × 6 mm DFN
- Immunity to EMI and RFI
- Wide range of load voltage and load current
- Broad range of packages, from ultraminiature 5 × 6 mm DFN to high-power 4-pin SuperSIP
- AC or DC load switching
No wear and tear. Consistent reliable switching.
MOSFET Output SSRs operate by taking a low level input current (<5 mA) that energizes an input infrared LED, which is optically coupled to an IC. This IC in turn generates a photo voltage that powers MOSFETs — typically two MOSFETs connected in a source-to-source configuration, allowing for both AC and DC output loads. Since SSRs basically move photons to accomplish their switching function, they incur no mechanical wear and tear, providing consistent, reliable switching.
Applications
These advantages make MOS Output SSRs the ideal choice for:
- Home and safety security systems
- Battery monitoring
- I/O boards and subsystems
- Energy management devices and systems
- Home automation
- Programmable controllers
- Multiplexers
- Telecom and datacom switching
- Data acquisition
- Medical equipment
- Robotics
- Aerospace
- Reed relay and EMR replacement

Devices
| Part number | Poles | Output | Package | Datasheet | |||
|---|---|---|---|---|---|---|---|
| AD2C211-L | 1 | AC / DC | 4 DIP/SMD | 400 | 5000 | 130 | PDF ↓ |
| AD4C111-L | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 110 | PDF ↓ |
| AD4C211-L | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD4C311-L | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 200 | PDF ↓ |
| AD6C111-L | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 110 | PDF ↓ |
| AD6C211-L | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD6C311-L | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 200 | PDF ↓ |
| M211-L | 1 | AC / DC | 4 SOP | 400 | 1500 | 140 | PDF ↓ |
| M221-L | 1 | AC / DC | 4 SOP | 400 | 1500 | 140 | PDF ↓ |
| SMA4115 | 1 | DC | 4 SIP | 60 | 5000 | 3400 | PDF ↓ |
| SMB4115 | 1 | DC | 4 SIP | 60 | 5000 | 3400 | PDF ↓ |
| SDM4101 | 1 | DC | 4 SIP | 60 | 5000 | 3400 | PDF ↓ |
| SDM4102 | 1 | DC | 4 SIP | 60 | 5000 | 3400 | PDF ↓ |
| SP540-X | 1 | DC | 4 SIP | 60 | 5000 | 1000 | PDF ↓ |
| SP541-X | 1 | DC | 4 SIP | 60 | 5000 | 1500 | PDF ↓ |
| SMA4131 | 1 | DC | 4 SIP | 250 | 5000 | 1000 | PDF ↓ |
| SMA4240 | 1 | AC / DC | 4 SOP | 60 | 5000 | 1500 | PDF ↓ |
| SMJ1359 | 2C [2A/2B] . | AC / DC | 16 SOIC | 60 | 400 | 1000 | PDF ↓ |
| SMJ1360 | 2C [2A/2B] . | AC / DC | 16 SOIC | 60 | 400 | 250 | PDF ↓ |
| SMJ1309 | 2C [2A/2B] . | AC / DC | 16 SOIC | 100 | 500 | 750 | PDF ↓ |
| SMC1309 | 1 | AC / DC | 8 SOP | 100 | 1500 | 750 | PDF ↓ |
| SMC8609 | 1 | AC / DC | 8 DFN | 100 | 300 | 750 | PDF ↓ |
| SMJ1209 | 2C [2A/2B] . | AC / DC | 12 DFN | 100 | 300 | 750 | PDF ↓ |
| SMJ1609 | 2C [2A/2B] . | AC / DC | 12 DFN | 100 | 300 | 750 | PDF ↓ |
| M201 | 1 | AC / DC | 4 SOP | 600 | 1500 | 140 | PDF ↓ |
| M211 | 1 | AC / DC | 4 SOP | 400 | 1500 | 120 | PDF ↓ |
| M221 | 1 | AC / DC | 4 SOP | 400 | 1500 | 140 | PDF ↓ |
| M231 | 1 | AC / DC | 4 SOP | 250 | 1500 | 150 | PDF ↓ |
| M241 | 1 | AC / DC | 4 SOP | 200 | 1500 | 150 | PDF ↓ |
| M250 | 1 | AC / DC | 4 SOP | 250 | 1500 | 35 | PDF ↓ |
| M251 | 1 | AC / DC | 4 SOP | 60 | 1500 | 400 | PDF ↓ |
| M261 | 1 | AC / DC | 4 SOP | 60 | 1500 | 400 | PDF ↓ |
| M271 | 1 | AC / DC | 4 SOP | 60 | 1500 | 125 | PDF ↓ |
| M281 | 1 | AC / DC | 4 SOP | 60 | 1500 | 1000 | PDF ↓ |
| M291 | 1 | AC / DC | 4 SOP | 50 | 1500 | 2000 | PDF ↓ |
| SMA4217 | 1 | AC / DC | 4 SOP | 60 | 1500 | 200 | PDF ↓ |
| AD2C101 | 1 | AC / DC | 4 DIP/SMD | 600 | 5000 | 100 | PDF ↓ |
| AD2C111 | 1 | AC / DC | 4 DIP/SMD | 400 | 5000 | 130 | PDF ↓ |
| AD2C201 | 1 | AC / DC | 4 DIP/SMD | 600 | 5000 | 150 | PDF ↓ |
| AD2C211 | 1 | AC / DC | 4 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD2C331 | 1 | AC / DC | 4 DIP/SMD | 250 | 5000 | 200 | PDF ↓ |
| AD2C541 | 1 | AC / DC | 4 DIP/SMD | 60 | 5000 | 500 | PDF ↓ |
| AD2C641 | 1 | AC / DC | 4 DIP/SMD | 60 | 5000 | 1000 | PDF ↓ |
| AD2C741 | 1 | AC / DC | 4 DIP/SMD | 60 | 5000 | 1300 | PDF ↓ |
| AD2C841 | 1 | AC / DC | 4 DIP/SMD | 50 | 5000 | 2500 | PDF ↓ |
| AD2C941 | 1 | AC / DC | 4 DIP/SMD | 60 | 5000 | 2500 | PDF ↓ |
| AD6C010 | 1 | AC / DC | 6 DIP/SMD | 1200 | 5000 | 100 | PDF ↓ |
| AD6C011 | 1 | AC / DC | 6 DIP/SMD | 800 | 5000 | 100 | PDF ↓ |
| AD6C101 | 1 | AC / DC | 6 DIP/SMD | 600 | 5000 | 120 | PDF ↓ |
| AD6C111 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD6C201 | 1 | AC / DC | 6 DIP/SMD | 600 | 5000 | 150 | PDF ↓ |
| AD6C211 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD6C250 | 1 | AC / DC | 6 DIP/SMD | 250 | 5000 | 40 | PDF ↓ |
| AD6C311 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 200 | PDF ↓ |
| AD6C331 | 1 | AC / DC | 6 DIP/SMD | 250 | 5000 | 200 | PDF ↓ |
| AD6C431 | 1 | AC / DC | 6 DIP/SMD | 200 | 5000 | 400 | PDF ↓ |
| AD6C541 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 700 | PDF ↓ |
| AD6C641 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 1500 | PDF ↓ |
| AD6C741 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 1800 | PDF ↓ |
| AD6C841 | 1 | AC / DC | 6 DIP/SMD | 50 | 5000 | 2500 | PDF ↓ |
| AD6C941 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 2500 | PDF ↓ |
| SMA4120 | 1 | AC / DC | 4 SIP | 600 | 5000 | 500 | PDF ↓ |
| SMA4124 | 1 | AC / DC | 4 SIP | 600 | 5000 | 1000 | PDF ↓ |
| SMA4123 | 1 | AC / DC | 4 SIP | 60 | 5000 | 2200 | PDF ↓ |
| SP540 | 1 | DC | 4 SIP | 60 | 5000 | 1000 | PDF ↓ |
| SP541 | 1 | DC | 4 SIP | 60 | 5000 | 1500 | PDF ↓ |
| SMA4122 | 1 | DC | 4 SIP | 100 | 5000 | 6000 | PDF ↓ |
| AD4C101 | 2 | AC / DC | 8 DIP/SMD | 600 | 5000 | 120 | PDF ↓ |
| AD4C111 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD4C201 | 2 | AC / DC | 8 DIP/SMD | 600 | 5000 | 150 | PDF ↓ |
| AD4C211 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD4C250 | 2 | AC / DC | 8 DIP/SMD | 250 | 5000 | 40 | PDF ↓ |
| AD4C311 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 200 | PDF ↓ |
| AD4C331 | 2 | AC / DC | 8 DIP/SMD | 250 | 5000 | 200 | PDF ↓ |
| AD4C541 | 2 | AC / DC | 8 DIP/SMD | 60 | 5000 | 700 | PDF ↓ |
| AD4C741 | 2 | AC / DC | 8 DIP/SMD | 60 | 5000 | 1000 | PDF ↓ |
| SMQ4101 | 4 | AC / DC | 16 SOIC | 350 | 1500 | 120 | PDF ↓ |
| SMQ4110 | 4 | AC / DC | 16 SOIC | 250 | 1500 | 40 | PDF ↓ |
| M212 | 1 | AC / DC | 4 SOP | 400 | 1500 | 120 | PDF ↓ |
| M222 | 1 | AC / DC | 4 SOP | 400 | 1500 | 120 | PDF ↓ |
| M272 | 1 | AC / DC | 4 SOP | 60 | 1500 | 125 | PDF ↓ |
| AD2C112 | 1 | AC / DC | 4 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD2C542 | 1 | AC / DC | 4 DIP/SMD | 60 | 5000 | 300 | PDF ↓ |
| AD6C112 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD6C212 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 140 | PDF ↓ |
| AD6C312 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 180 | PDF ↓ |
| AD6C332 | 1 | AC / DC | 6 DIP/SMD | 250 | 5000 | 200 | PDF ↓ |
| AD6C542 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 400 | PDF ↓ |
| AD6C742 | 1 | AC / DC | 6 DIP/SMD | 60 | 5000 | 800 | PDF ↓ |
| SMB4108 | 1 | DC | 4 SIP | 60 | 5000 | 3400 | No datasheet |
| AD4C112 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD4C212 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 140 | PDF ↓ |
| AD4C312 | 2 | AC / DC | 8 DIP/SMD | 400 | 5000 | 180 | PDF ↓ |
| AD4C332 | 2 | AC / DC | 8 DIP/SMD | 250 | 5000 | 200 | PDF ↓ |
| AD4C542 | 2 | AC / DC | 8 DIP/SMD | 60 | 5000 | 300 | PDF ↓ |
| AD4C742 | 2 | AC / DC | 8 DIP/SMD | 60 | 5000 | 600 | PDF ↓ |
| AD4C113 | 1A/1B | AC / DC | 8 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
| AD4C213 | 1A/1B | AC / DC | 8 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD4C313 | 1A/1B | AC / DC | 8 DIP/SMD | 400 | 5000 | 180 | PDF ↓ |
| AD4C333 | 1A/1B | AC / DC | 8 DIP/SMD | 250 | 5000 | 220 | PDF ↓ |
| AD4C543 | 1A/1B | AC / DC | 8 DIP/SMD | 60 | 5000 | 400 | PDF ↓ |
| AD4C743 | 1A/1B | AC / DC | 8 DIP/SMD | 60 | 5000 | 800 | PDF ↓ |
| AD6C223 | 1 | AC / DC | 6 DIP/SMD | 400 | 5000 | 150 | PDF ↓ |
| AD2C111-L | 1 | AC / DC | 4 DIP/SMD | 400 | 5000 | 120 | PDF ↓ |
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