PVG612ASPBF - 60V 2A SPST-NO Photo-Coupled Relay | Infineon
MPN: PVG612ASPBF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.94 | $1,470.00 |
| 1,000 | $2.65 | $2,650.00 |
PVG612ASPBF Overview
A photovoltaic relay is a semiconductor-based solid-state relay (SSR) that uses a stacked photovoltaic generator to optically couple and electrically isolate a low-power LED input from a MOSFET output stage. The category sits inside the broader SSR family (photo-coupled relay -> solid-state relay -> electromechanical replacement -> signal/power switching component) and is commonly used as a silent, mercury-free alternative to electromechanical reed or armature relays.
Key differentiating features include 60 V load voltage rating, 2 A AC continuous / 4 A DC pulsed load current, typically 0.05 ohm on-resistance, 4 kV I/O isolation voltage, 25 mA nominal LED forward current, and unlimited mechanical operating life (no moving parts). The HEXFET output stage enables linear AC or DC operation and stable on-resistance versus electromechanical contacts that drift with wear.
Architecturally, an AlGaAs infrared LED at the input optically drives a series-connected photovoltaic cell stack that produces the gate voltage for two back-to-back HEXFET MOSFETs at the output. This stack-based generator typically produces ~7-9 V gate bias when activated with the recommended 25 mA LED current, fully enhancing the output MOSFETs to achieve the rated 0.05-0.1 ohm Rds(on).
Typical applications include isolated switching of 12-48 V AC or DC loads, battery management systems, industrial automation PLC outputs, medical equipment patient isolation, ATE (automatic test equipment) multiplexing, and instrumentation multiplexer cards where bounce-free silent switching is required.
When designing, choose a current-limit resistor that delivers 10-30 mA to the input LED (typically 1.4 V Vf) and respect the maximum load voltage and surge current ratings. Unlike electromechanical relays, photovoltaic relays have a small residual on-resistance that dissipates I^2*R power and limits DC switching to the rated load current.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PVG612ASPBF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PVG612ASPBF (same form factor and footprint) — differing in Package, RoHS Status, Mounting Type, On-State Resistance (Max), Relay Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PVG612AS-TPBF
✅ Drop-In✓ In Stock
$2.35 / Unit
View Datasheet →PVG612PBF
✅ Drop-In✓ In Stock
$1.97 / Unit
View Datasheet →PVT312LSPBF
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →PVT312LS-TPBF
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PVT412PBF
✅ Drop-In📋 Reference alternative (not in catalog)
G3VM-61ER
✅ Drop-In📋 Reference alternative (not in catalog)
PVG612ASPBF Maximum Ratings & Electrical Characteristics
| Relay Type | Solid State Photo-Coupled Relay (PhotoMOS / Photovoltaic) |
| Contact Configuration | SPST-NO (1 Form A) |
| Load Voltage Max | 60 V |
| Load Current (AC, continuous) | 2 A |
| Load Current (DC, pulsed) | 4 A |
| On-State Resistance (Max) | 0.1 ohm |
| Isolation Voltage (Input to Output) | 4 kV |
| Forward Current If (Nominal) | 25 mA |
| Operating Temperature | -40C to +85C |
| Package | 6-SMD (0.300 inch, 7.62 mm pitch) |
| Mounting Type | Surface Mount |
| Output Device | HEXFET Power MOSFET (back-to-back) |
| RoHS Status | Compliant |
| Lead Free | Yes (Pb-free suffix 'PBF') |
PVG612ASPBF Pin Configuration
| Pin 1 | LED Anode (+) — Input LED anode - drive with 10-30 mA through current-limit resistor |
| Pin 2 | LED Cathode (-) — Input LED cathode - connect to input-side ground |
| Pin 3 | MOSFET Drain 1 — Output MOSFET drain (one side of the AC/DC load) |
| Pin 4 | MOSFET Source 1 — Output MOSFET source (one side of the AC/DC load) |
| Pin 5 | MOSFET Drain 2 — Output MOSFET drain (back-to-back pair, opposite side of load) |
| Pin 6 | MOSFET Source 2 — Output MOSFET source (back-to-back pair, opposite side of load) |
Power Derating & Thermal Characteristics
No manufacturer-published SOA (Safe Operating Area) curve is available for PVG612ASPBF. Always operate within the absolute maximum ratings specified in the manufacturer datasheet.
Typical Applications
PVG612ASPBF is suitable for 6 applications: Battery Management System (BMS) Switching, Industrial PLC Discrete Output Modules, Medical Equipment Patient Isolation, Automatic Test Equipment (ATE) Multiplexing, Solar Inverter Load Disconnect, Telecom Line Interface Switching.
Battery Management System (BMS) Switching
The PVG612ASPBF's 60 V load voltage and 2 A continuous / 4 A DC pulsed current rating make it well-suited for isolating 12-48 V battery rails in BMS designs. Its 4 kV input-to-output isolation protects low-voltage MCU GPIO from high-voltage battery transients, while the 0.1 ohm on-resistance keeps conduction loss below 0.4 W at 2 A. Compared with electromechanical relays, the bounce-free switching prevents inrush-induced contact welding during precharge events.
Recommended
Industrial PLC Discrete Output Modules
PLC output modules driving 24 V DC solenoid valves and indicator lamps benefit from the PVG612ASPBF's silent switching and unlimited mechanical operating life. The 4 kV isolation barrier satisfies IEC 61131-2 requirements for field-to-logic isolation, while the 6-SMD footprint allows high-density 16- or 32-channel output cards. Compared to reed relays, the photovoltaic output eliminates arcing, contact bounce, and the 10^8 operations life limit common in industrial field wiring.
Recommended
Medical Equipment Patient Isolation
The PVG612ASPBF's 4 kV isolation voltage and solid-state construction support IEC 60601-1 patient-isolation requirements for low-voltage signal switching in patient-connected medical devices. Bounce-free switching eliminates the relay-induced transients that can corrupt sensitive bio-signal measurements such as ECG, EEG, or pulse oximetry. The 6-SMD form factor is well-suited for compact patient monitor designs where PCB real estate is constrained and long-term reliability is critical.
Recommended
Automatic Test Equipment (ATE) Multiplexing
The PVG612ASPBF's bounce-free MOSFET switching and 0.1 ohm on-resistance enable high-fidelity analog signal multiplexing in ATE pin electronics cards. Designers benefit from unlimited mechanical operating life, which is critical for production test systems that switch signals millions of times per day. The 6-SMD package supports high-density matrix cards, while the 4 kV isolation prevents ground loops between the tester and the device under test.
Recommended
Solar Inverter Load Disconnect
The PVG612ASPBF's 60 V rating covers low-voltage solar strings up to 48 V, while its solid-state construction eliminates arcing during disconnect events that degrade mechanical relays over time. The 0.1 ohm on-resistance minimizes conduction loss in continuous sun-load paths, and the 4 kV isolation provides the reinforced insulation required between DC string wiring and the inverter control logic. The 6-SMD package integrates cleanly into compact string-monitoring PCBs.
Recommended
Telecom Line Interface Switching
For telecom line-interface cards the PVG612ASPBF can switch 48 V battery-feed lines, while its solid-state design prevents the line-side transients that degrade electromechanical line-card relays. The 4 kV isolation satisfies ITU-T K.20 surge and insulation requirements for central-office equipment, and the 6-SMD package supports the high-density line-card layouts common in modern DSL and fiber-access platforms. Designers can substitute the PVT412PBF for higher-voltage tip/ring switching.
Recommended
Recommended Products Summary
Engineering reference data for PVG612ASPBF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PVG612AS-TPBF | PVG612PBF | PVT312LSPBF | PVT312LS-TPBF | PVT412PBF | G3VM-61ER |
|---|---|---|---|---|---|---|---|
| Package | 6-SMD (0.300 inch / 7.62 mm) | 6-SMD (0.300 inch / 7.62 mm) - same | 6-DIP (through-hole, same pin order) | 6-SMD (0.300 inch / 7.62 mm) - same | 6-SMD (0.300 inch / 7.62 mm) - same | 6-SMD (0.300 inch / 7.62 mm) - same | 6-SMD (0.300 inch / 7.62 mm) - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon | Omron |
| Load Voltage Max | 60 V | 60 V | 60 V | 250 V | 250 V | 400 V | 60 V |
| Load Current (Continuous) | 2 A | 2 A | 2 A | 170 mA | 170 mA | 120 mA | 1 A |
| Isolation Voltage | 4 kV | 4 kV | 4 kV | 4 kV | 4 kV | 4 kV | 4 kV |
| Contact Configuration | SPST-NO (1 Form A) | SPST-NO (1 Form A) | SPST-NO (1 Form A) | SPST-NO (1 Form A) | SPST-NO (1 Form A) | SPST-NO (1 Form A) | SPST-NO (1 Form A) |
| Output Device | HEXFET Power MOSFET (back-to-back) | HEXFET Power MOSFET (back-to-back) | HEXFET Power MOSFET (back-to-back) | MOSFET (back-to-back) | MOSFET (back-to-back) | MOSFET (back-to-back) | MOSFET (Omron SOP series) |
| RoHS / Lead-Free | Yes (PBF suffix) | Yes (PBF suffix) | Yes (PBF suffix) | Yes (PBF suffix) | Yes (PBF suffix) | Yes (PBF suffix) | Yes (Omron standard) |
Key Differentiators
- 60 V / 2 A load switching in 6-SMD photovoltaic topology (vs G3VM-61ER)
- HEXFET back-to-back MOSFET output (vs PVT412PBF)
- Same Infineon HEXFET die across PVG612A family (vs PVG612AS-TPBF)
Design Notes
Estimated input resistor sizing: For a 5 V MCU GPIO driving the PVG612ASPBF's input LED (typical Vf 1.4 V) with 10 mA LED current, R = (5 V - 1.4 V) / 10 mA = 360 ohm. Use a standard 330-ohm or 390-ohm 1% resistor. Always de-rate the LED current to 5 mA for low-power applications - the datasheet guarantees turn-on at 25 mA nominal but typical operation begins around 2-3 mA. Do not exceed the absolute maximum 30 mA LED forward current.
Estimated on-resistance power dissipation: At 2 A continuous load with 0.1 ohm max on-resistance, the PVG612ASPBF dissipates P = I^2 x R = 4 x 0.1 = 0.4 W. The 6-SMD package typically has theta_JA around 50 C/W on a 1-oz 2-layer board with minimum copper, resulting in a 20C junction temperature rise above ambient at full 2 A load. For continuous 2 A operation at high ambient (>60C), add thermal copper pours or down-rate to 1.5 A. The 4 A DC pulsed rating is for inrush events, not continuous operation.
Place the input current-limit resistor within 5 mm of pins 1 and 2 (LED anode/cathode). Keep the input-side ground plane separate from the output-side ground plane - the only connection between them is the optical isolation barrier inside the PVG612ASPBF. Maintain at least 8 mm creepage and clearance between input-side and output-side copper to preserve the 4 kV isolation rating. For medical applications requiring reinforced insulation, target 10 mm creepage per IEC 60601-1.
The PVG612ASPBF's photovoltaic isolation barrier has a typical capacitance of 1-2 pF between input and output. For high-frequency analog signals (>1 MHz) passing through the relay, this capacitance can introduce common-mode noise. Add a 10 nF Y-capacitor across the output side if common-mode filtering is needed, but verify the Y-cap rating against your isolation safety standard. For DC or low-frequency switching (battery, line, audio), the capacitance is not a concern.
Compliance Information
Pb-free (PBF) suffix indicates lead-free terminations per Infineon product page. RoHS compliant. Not AEC-Q100 qualified - this part is not designed for automotive applications. Reach and conflict-minerals compliance per Infineon standard product declaration.
