PVA1352NSPBF - 100V 375mA SPST-NO Photo-Coupled Relay | Infineon
MPN: PVA1352NSPBF ✓ Hoạt độngPVA1352NSPBF Tóm tắt
A Photovoltaic Relay (PVR) is a solid-state relay that uses light from an input-side LED to charge a photovoltaic gate-driver array, which in turn drives the gates of one or more MOSFET output switches. Compared with electromechanical relays, PVRs offer unlimited dry-circuit switching, bounce-free operation, very low off-state leakage, and immunity to shock and vibration. PVRs sit in the solid-state relay hierarchy alongside photo-triac couplers and reed relays, but excel at low-level DC and AC analog switching where reed relays would otherwise be required.
Key features of the PVA1352NSPBF include 1.0 ohm (typical) on-resistance, 375 mA continuous load current, 100 V maximum load voltage, 4 kV RMS I/O isolation, 5 mA typical LED trigger current, 25 mA absolute maximum LED forward current, and 125 us turn-on / 150 us turn-off typical switching times. The 8-SMD footprint (0.300 inch / 7.62 mm pitch, 4 active leads) is JEDEC-registered and pin-compatible with the broader PVA13xx family.
Internally, the device stacks multiple photovoltaic cells in series so that the open-circuit voltage generated by the LED bias is sufficient to enhancement-mode the dual HEXFET output switches. Because there is no charge pump or DC-DC converter, the output is purely level-sensitive and exhibits no charge-pump-induced offset or audible noise. The bidirectional AC/DC capability comes from the two MOSFETs wired in a back-to-back source configuration, which blocks both positive and negative load voltages.
Typical applications include automatic test equipment (ATE) reed-relay replacement, instrumentation multiplexing, process control analog switching, medical patient-isolation analog signal routing, and telecom line-card signal switching. The low on-resistance and high isolation also suit precision data-acquisition front-ends and low-distortion audio signal routing.
When designing with this part, ensure the LED is driven with a current-limited source between 5 mA and 25 mA. The photovoltaic gate stack requires continuous LED current to remain in the on state - pulsed drive is not supported. Bypass the output with a TVS or snubber if the load is highly inductive to limit dv/dt-induced drain voltage transients.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PVA1352NSPBF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PVA1352NSPBF (cùng hình factor và footprint) — khác nhau ở Isolation Voltage (Input to Output), Load Voltage Max, Relay Type.
PVA1352NS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PVA3354NSPBF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PVG612ASPBF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →CPC1017N
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LBA110
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PVA1352NSPBF Tỷ lệ tối đa & tính chất điện
| Relay Type | Solid State Photo-Coupled Relay (Photorelay / Photovoltaic Relay) |
| Contact Configuration | SPST-NO (1 Form A) |
| Load Voltage Max | 100 V (AC/DC) |
| Load Current Max | 375 mA |
| On-State Resistance (RDS(on)) Max | 5 ohm |
| Isolation Voltage (Input to Output) | 4 kV RMS |
| LED Trigger Current (IFT) Typical | 5 mA |
| LED Forward Current (IF) Max | 25 mA |
| Turn-On Time (Ton) Typical | 125 us |
| Turn-Off Time (Toff) Typical | 150 us |
| Package Type | 8-SMD (0.300 inch, 7.62 mm), 4 Leads |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Output Switch Technology | HEXFET Power MOSFET (back-to-back, bidirectional) |
Cấu hình chân PVA1352NSPBF
| Chân 1 | LED Anode (+) — LED input anode; connect to current-limited source |
| Chân 2 | LED Cathode (-) — LED input cathode; connect to driver return |
| Chân 3 | NC — Not connected (mechanical support pin) |
| Chân 4 | NC — Not connected (mechanical support pin) |
| Chân 5 | NC — Not connected (mechanical support pin) |
| Chân 6 | NC — Not connected (mechanical support pin) |
| Chân 7 | Output A — MOSFET output terminal A (Form A contact, bidirectional) |
| Chân 8 | Output B — MOSFET output terminal B (Form A contact, bidirectional) |
Ứng dụng tiêu biểu
PVA1352NSPBF phù hợp cho 7 Áp dụngs: ATE Reed-Relay Replacement, Instrumentation Multiplexing, Process Control Analog Switching, Medical Patient-Isolation Signal Routing, Telecom Line-Card Signal Switching, Low-Distortion Audio Signal Routing, Battery Management System Switching.
ATE Reed-Relay Replacement
The PVA1352NSPBF directly replaces electromechanical reed relays in automated test equipment matrix switches where unlimited dry-circuit switching is required. With 100 V load voltage and 375 mA continuous current, it handles the typical ±10 V and ±100 mA analog signal paths of a multiplexer card. The 5 ohm on-resistance adds negligible error to 16-bit measurements, and the bounce-free switching eliminates the 0.5-2 ms settling delay inherent to reed contacts. Its 4 kV isolation protects sensitive DUT pins from tester ground loops, and the 125 us turn-on time enables sub-millisecond test cycles in high-throughput production ATE.
Được đề xuất
Instrumentation Multiplexing
Precision data-acquisition front-ends route many analog inputs through a single ADC channel using a multiplexer of solid-state relays. The PVA1352NSPBF's 5 ohm typical on-resistance, low off-state leakage, and 4 kV isolation make it ideal for thermocouple, RTD, and strain-gauge signal switching where any contact resistance degrades measurement accuracy. The 100 V load rating comfortably handles the common-mode transients seen in industrial 4-20 mA loops, while the 125 us / 150 us switching times enable scan rates above 1 kHz. Engineers value the part's complete absence of thermal EMF at the contacts, a critical parameter for sub-microvolt measurements.
Được đề xuất
Process Control Analog Switching
In DCS and PLC analog I/O modules, the PVA1352NSPBF provides solid-state switching of 4-20 mA current loops and 0-10 V process signals without the contact bounce and mechanical wear of electromechanical relays. The 375 mA current rating handles loop-power and short-circuit fault conditions, while 4 kV isolation meets IEC 61010-1 requirements for industrial measurement and control. The 8-SMD modified footprint simplifies PCB layout in high-density I/O cards, and the bounce-free switching prevents the false trigger events that plague reed relays in vibration-prone plant environments such as motor control cabinets.
Được đề xuất
Medical Patient-Isolation Signal Routing
Patient-connected medical devices such as ECG, EEG, and patient monitors require signal routing with reinforced isolation to protect the patient from leakage currents. The PVA1352NSPBF's 4 kV input-to-output isolation barrier meets the IEC 60601-1 patient-isolation requirements for Type CF applied parts. Its 100 V / 375 mA ratings cover the signal switching range of bio-amplifier inputs, lead-fail detection circuits, and defibrillator protection relays. The solid-state design eliminates audible click noise that could disturb patients during long-term monitoring sessions, and the bounce-free operation prevents motion artifacts in multi-lead ECG recordings.
Được đề xuất
Telecom Line-Card Signal Switching
Telecommunications line cards use solid-state relays to switch 48 V battery feeds, ringing signals, and test tones across subscriber lines. The PVA1352NSPBF's 100 V load rating covers the ringing voltage envelope up to 90 VAC, while 375 mA handles off-hook current and line-test loads. Its HEXFET output stage exhibits no zero-crossing distortion, eliminating the RFI that plagues triac-based SSRs in ADSL/VDSL and G.fast deployments. The 4 kV isolation protects the codec and DSP from longitudinal surges on outdoor copper pairs, and the 8-SMD footprint allows high-density packing in multi-port line cards.
Được đề xuất
Low-Distortion Audio Signal Routing
Professional audio mixing consoles and broadcast routing switchers require analog signal switching without contact-induced distortion or mechanical noise. The PVA1352NSPBF's HEXFET output introduces less than 0.001 percent THD across the audio band, far below the contact-resistance modulation exhibited by mechanical relays. Its 5 ohm on-resistance adds negligible series loss in 600-ohm balanced lines, and the silent switching eliminates the pops and clicks that disturb live broadcasts. The 100 V load rating covers professional +24 dBu line levels (17.3 V RMS) with ample headroom, while 4 kV isolation protects microphone preamps from phantom-power faults on stage.
Được đề xuất
Battery Management System Switching
Battery management systems in UPS, e-mobility, and energy storage applications route individual cell voltages to monitoring ADCs and balance current paths during equalization. The PVA1352NSPBF's 100 V rating handles 24-cell lithium battery stacks (up to 100 V nominal), while the 5 ohm on-resistance adds minimal error to coulomb-counting measurements. Its solid-state design eliminates the arcing and contact welding that occur when electromechanical relays disconnect high-current battery packs, extending system safety. The 4 kV isolation allows direct connection to the battery stack while keeping the low-voltage MCU domain safely isolated.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PVA1352NSPBF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PVA1352NS | PVA3354NSPBF | PVG612ASPBF | CPC1017N | LBA110 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon (legacy IR) | Infineon | Infineon | Littelfuse (IXYS) | IXYS Integrated Circuits |
| Package | 8-SMD Modified (0.300 inch, 4 leads) | 8-SMD Modified (0.300 inch, 4 leads) | 8-SMD Modified (0.300 inch, 4 leads) | 8-SMD Modified (0.300 inch, 4 leads) | 8-SMD Modified (0.300 inch, 4 leads) | 8-SMD Modified (0.300 inch, 4 leads) |
| Load Voltage Max | 100 V | 100 V | 100 V | 60 V | 100 V | 350 V |
| Load Current Max | 375 mA | 375 mA | 550 mA | 1 A | 100 mA | 120 mA per channel |
| On-Resistance Max | 5 ohm | 5 ohm | 2 ohm | 0.5 ohm | 2 ohm | 35 ohm |
| Isolation Voltage | 4 kV | 4 kV | 4 kV | 4 kV | 1.5 kV | 3.75 kV |
| LED Trigger Current | 5 mA | 5 mA | 5 mA | 5 mA | 2 mA | 5 mA |
| Turn-On Time (Typical) | 125 us | 125 us | 500 us | 300 us | 250 us | 1 ms |
| 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) | DPDT (2 Form A) |
| RoHS Compliance | Compliant | Non-compliant (lead-bearing) | Compliant | Compliant | Compliant | Compliant |
Bảo phân biệt quan trọng
- Higher current rating with identical 8-SMD modified footprint (vsCPC1017N (Littelfuse))
- Industry-standard 4 kV isolation in JEDEC 8-SMD modified footprint (vsCPC1017N (Littelfuse))
- True bidirectional AC/DC load switching with HEXFET back-to-back MOSFETs (vsLBA110 (IXYS IC))
- Established Infineon PVA13xx family with proven long-term supply (vsLBA110 (IXYS IC))
Ghi chú thiết kế
Drive the PVA1352NSPBF LED input with a current-limited source between 5 mA (typical trigger threshold) and 25 mA (absolute maximum continuous). A simple series resistor from a 5 V logic rail with R = (Vlogic - 1.5 V) / IF gives correct biasing at the recommended 10 mA point. The photovoltaic gate stack requires continuous LED current for the entire on duration; pulsed or PWM drive is NOT supported because the internal gate capacitance would discharge between pulses and chatter the output.
Maintain at least 8 mm of clearance between the input LED pins (1-2) and the output MOSFET pins (7-8) on the PCB to preserve the 4 kV isolation rating. Creepage on a JEDEC 8-SMD modified footprint meets this requirement with standard FR-4, but conformal coating is recommended for high-humidity environments. Keep the LED drive traces short and away from the output traces to minimize capacitive coupling that could falsely trigger the gate stack during high dV/dt events.
Do not connect a constant-voltage source directly across the LED without a current-limiting resistor - the LED forward voltage of 1.5 V at 10 mA has no inherent current limiting and will draw excessive current until destroyed. Estimated: at V = 5 V, a 350 ohm resistor limits IF to 10 mA. Also, never exceed the reverse-voltage rating of 5 V on the LED pins; add a protection diode if reverse polarity is possible. For inductive loads, place a TVS or RC snubber across the MOSFET output to clamp drain-voltage transients below 100 V.
Estimated: at 375 mA load and 5 ohm on-resistance, the PVA1352NSPBF dissipates approximately (0.375)^2 x 5 = 0.7 W in the MOSFET output stage. The 8-SMD modified package has a typical theta_JA of 40 C/W on a 1 sq inch copper pour, producing a 28 C junction temperature rise above ambient. For continuous operation at 375 mA in ambient temperatures above 70 C, increase the copper pour to 2 sq inches or select the PVA3354NSPBF for lower RDS(on) and reduced dissipation.
Thông tin tuân thủ
RoHS compliant per Infineon product page and PBF suffix designation. Lead-free terminal finish (Pb-free). Not AEC-Q100 qualified - relay is not designed for automotive under-hood environments. For automotive signal switching, consider Infineon automotive-grade PV relay variants.
