PS2501L-1-F3-A - 5000Vrms Optocoupler, 4-SMD, Gull-Wing | Renesas
Teilenummer: PS2501L-1-F3-A ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.45 | $0,45 |
| 10 | $0.36 | $3,60 |
| 100 | $0.27 | $27,00 |
| 500 | $0.22 | $110,00 |
| 1.000 | $0.19 | $190,00 |
| 3.000 | $0.16 | $480,00 |
PS2501L-1-F3-A Übersicht
A photocoupler (optocoupler or optical isolator) is a semiconductor device that transfers electrical signals between two isolated circuits using a short optical transmission path. It contains an LED on the input side and a photosensitive device (here a phototransistor) on the output side, separated by a transparent insulating barrier. Within the broader component taxonomy, the PS2501L-1-F3-A falls under Optocouplers & Isolators -> Phototransistor Output Optocouplers -> DC-Input Single-Channel Optocoupler, used wherever logic-level or analog signals must cross a galvanic isolation barrier.
Key features include 5000 Vrms input-to-output isolation voltage (Viso), typical current transfer ratio (CTR) ranging from 80% to 600% depending on rank, a wide operating temperature range of -55°C to +100°C, and a saturation Vce of typically 0.1 V to 0.2 V at low currents. The 4-SMD gull-wing package simplifies reflow soldering versus the through-hole PS2501-1, supporting high-density PCB assembly and automated pick-and-place. Response times of 3 microseconds (ton) and 5 microseconds (toff) make it suitable for interfacing low-frequency logic, feedback loops, and noisy industrial buses.
The PS2501L-1-F3-A uses a GaAs LED and a silicon phototransistor in a Darlington-style topology (single transistor here). Its design emphasizes high common-mode transient immunity thanks to the inherent optical coupling, eliminating ground loops between primary and secondary sides. Multiple CTR bins (A, B, C, D, E) allow designers to select a current transfer ratio suited to their specific application.
Typical applications include isolated power supply feedback, microcontroller I/O isolation, PLC input/output modules, switching power supply primary-to-secondary feedback paths, and AC line voltage monitoring interfaces. Designers choose this part when a proven, broadly available 4-pin optocoupler is needed in a surface-mount package.
When designing with this device, place a current-limiting resistor in series with the LED input, sized to set IF between 5 mA and 20 mA nominal. The base pin (pin 6 in the through-hole variant; refer to datasheet for SMD mapping) is typically left open or used with a base-emitter resistor to tweak switching speed.
This page synthesizes distributor pricing, drop-in gull-wing alternatives, and practical SMT layout notes not gathered in the manufacturer datasheet alone.
Drop-in-Alternativen für PS2501L-1-F3-A – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PS2501L-1-F3-A (gleiche Bauform und Footprint) – abweichend in Isolation Voltage, Mounting Type, Output Type, RoHS Status.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PS2501L-1-A
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PS2501L-1-F3-M-A
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
PC817X1IPBF
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PC817X4IPBF
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
LTV-817S-TA1-C
✅ Drop-In✓ Auf Lager
$0.03 / Stück
Datenblatt ansehen →EL817
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PS2501L-1-F3-A Technische Daten
| Isolation Voltage | 5000 Vrms |
| Kanäle | 1 |
| Ausgangstyp | Transistor (NPN silicon phototransistor) |
| Input Type | DC (GaAs infrared LED) |
| Collector-Emitter Breakdown Voltage (Vceo) | 80 V minimum |
| Maximum Forward Current (IF) | 80 mA |
| Kollektorstrom (Ic) | 50 mA maximum |
| Forward Voltage (VF) | 1.2 V typical at 10 mA |
| Current Transfer Ratio (CTR) | 80% to 600% (rank dependent) |
| Turn-On Time (ton) | 3 us typical |
| Turn-Off Time (toff) | 5 us typical |
| Betriebstemperaturbereich | -55 C to +100 C |
| Package Type | 4-SMD, Gull-wing lead bending |
| Montageart | Surface Mount |
| Lead-Free | Yes |
| RoHS-Status | Compliant |
PS2501L-1-F3-A Pin-Konfiguration
| Pin 1 | Anode (LED+) — Anode of the infrared GaAs LED; connect to logic driver via current-limiting resistor |
| Pin 2 | Cathode (LED-) — Cathode of the infrared GaAs LED; typically tied to logic ground on input side |
| Pin 3 | Emitter (NPN) — Emitter of the NPN silicon phototransistor; output-side ground reference |
| Pin 4 | Collector (NPN) — Collector of the NPN silicon phototransistor; pull-up to output-side Vcc |
Typische Anwendungen
PS2501L-1-F3-A ist geeignet für 6 Anwendungs: Isolated SMPS Feedback Loop, Microcontroller GPIO and UART Isolation, PLC Digital Input Module Interface, Isolated Gate Driver Interface, AC Line Voltage Zero-Cross Detection, Analog Signal Isolation Buffer.
Isolated SMPS Feedback Loop
The PS2501L-1-F3-A's 5000 Vrms input-to-output isolation provides the safety barrier required in switch-mode power supply feedback paths, where a primary-side PWM controller must sense the secondary-side output voltage without an electrical connection. The GaAs LED input is driven by the TL431 reference and opto-coupler feedback network, while the phototransistor output sinks current into the COMP pin of the primary controller. Its ton of 3 us and toff of 5 us comfortably accommodate typical loop bandwidths of 10 to 50 kHz, and the 80 V Vceo rating provides ample headroom for the primary-side 12 V to 24 V supply rail common in offline adapters and isolated DC-DC modules.
Empfohlen
Microcontroller GPIO and UART Isolation
Industrial and medical embedded systems often require galvanic isolation between a low-voltage MCU and field wiring or other subsystems to protect against ground loops, transient surges, and fault voltages. The PS2501L-1-F3-A is well suited for isolating 3.3 V or 5 V CMOS GPIO lines, UART TX/RX pairs, and low-speed SPI signaling up to about 50 kbps, since its 3 us/5 us propagation delay introduces less than 5 percent timing skew at typical protocol rates. The 4-SMD gull-wing package fits cleanly above 0.65 mm pitch routing, and the 5000 Vrms isolation satisfies IEC 60950 and IEC 62368 reinforced insulation requirements for many patient-contact and industrial-port applications.
Empfohlen
PLC Digital Input Module Interface
PLC digital input cards accept 24 V field signals that must be translated into 5 V or 3.3 V logic for the backplane microcontroller, often across an isolation barrier rated for 2.5 kV or more to comply with industrial control standards. The PS2501L-1-F3-A accepts a current-limited 24 V input on the LED side and produces a logic-level output on the phototransistor collector, with 5000 Vrms providing strong reinforced isolation per IEC 61131-2. The CTR 80 to 600 percent range allows designers to use a high-CTR bin when driving the LED at modest 5 mA to limit dissipation in the input resistor, which extends reliability in dense 32-channel input modules.
Empfohlen
Isolated Gate Driver Interface
IGBT and MOSFET gate drivers in motor control, solar inverters, and UPS systems frequently use optocouplers to transmit PWM commands across an isolation barrier between low-voltage control logic and the high-voltage power stage. The PS2501L-1-F3-A's 3 us ton and 5 us toff propagation delay are adequate for gate driver signaling up to 50 kHz PWM, supporting motor drives switching in the 10 to 20 kHz range. Designers typically wire the LED anode to a 3.3 V or 5 V MCU GPIO via a 1 kohm current-limiting resistor, and bias the phototransistor collector to the gate-driver's logic supply rail with a 10 kohm pull-up. For higher dV/dt immunity in fast-switching applications, consider the PS2501L-1 family alongside faster gate-driver optos such as the HCPL-3120.
Empfohlen
AC Line Voltage Zero-Cross Detection
Detecting zero-crossings of 120 VAC or 230 VAC mains is a classic optocoupler application in solid-state relay (SSR) controls, dimmers, and AC-line synchronization interfaces for microcontrollers. The PS2501L-1-F3-A accepts a current-limited rectified AC waveform at the LED input (typically through a series resistor and bridge rectifier) and outputs a clean logic transition at the collector for each half-cycle. The 5000 Vrms isolation makes it compliant with reinforced insulation requirements in appliance controls, and the 80 V Vceo comfortably tolerates the rectified mains peak of approximately 325 V when used in a step-down sensing configuration.
Empfohlen
Analog Signal Isolation Buffer
Although the PS2501L-1-F3-A's primary role is digital isolation, it can also serve in low-bandwidth analog isolation paths such as sensor front-end isolation for thermocouples, 4-20 mA current loops, and audio line isolation in pro-audio equipment. The phototransistor's linear region permits analog signal transfer up to a few kilohertz before nonlinearity becomes significant, which is acceptable for sensor and instrumentation applications. Designers bias the LED with a transconductance amplifier and read the collector current through a sense resistor or transimpedance stage. The 5000 Vrms barrier is essential for medical equipment (per IEC 60601 patient-isolation requirements) and for industrial sensors mounted at high common-mode voltages relative to the controller ground.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PS2501L-1-F3-A – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PS2501L-1-A | PS2501L-1-F3-M-A | PC817X1IPBF | PC817X4IPBF | LTV-817 | EL817 |
|---|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Sharp | Sharp | Lite-On | Everlight |
| Package | 4-SMD, Gull-wing | 4-SMD, Gull-wing | 4-SMD, Gull-wing | 4-SMD, Gull-wing | 4-SMD, Gull-wing | 4-SMD, Gull-wing | 4-SMD, Gull-wing |
| Isolation Voltage (Vrms) | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 |
| Collector-Emitter Voltage (Vceo) | 80 V min | 80 V min | 80 V min | 80 V max | 80 V max | 80 V max | 80 V max |
| Current Transfer Ratio (CTR) | 80% - 600% (rank dependent) | 80% - 600% | 80% - 600% | 50% - 600% (X1 rank) | 200% - 600% (X4 rank) | 50% - 600% | 50% - 600% |
| Turn-On Time (ton) | 3 us typical | 3 us | 3 us | 4 us | 4 us | 4 us | 4 us |
| Turn-Off Time (toff) | 5 us typical | 5 us | 5 us | 3 us | 3 us | 3 us | 3 us |
| Maximum Forward Current (IF) | 80 mA | 80 mA | 80 mA | 50 mA | 50 mA | 50 mA | 50 mA |
| Operating Temperature Range | -55 C to +100 C | -55 C to +100 C | -55 C to +100 C | -30 C to +100 C | -30 C to +100 C | -30 C to +100 C | -55 C to +110 C |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Wider operating temperature range than second-source equivalents (vs. PC817X1IPBF)
- Higher CTR lower-bound than baseline PC817 (vs. PC817X1IPBF)
- Faster ton than cross-brand equivalents (vs. LTV-817)
- Higher maximum forward current margin (vs. EL817)
Designhinweise
Estimated: When sizing the LED current-limiting resistor, assume a worst-case VF of 1.4 V (not the 1.2 V typical) at -55 C supply and target a nominal IF of 10 mA. With Vcc = 5 V, R-LED = (5 V - 1.4 V) / 10 mA = 360 ohm; choose 330 ohm for a 11 mA nominal forward current with adequate margin. Don't drive IF above 20 mA continuous to avoid CTR degradation over time.
Estimated: The PS2501L-1-F3-A's junction-to-ambient thermal resistance is approximately 200 C/W in the 4-SMD gull-wing package when soldered to a minimal copper pad. At 5 mA LED forward current and 5 mA collector current, total dissipation is roughly (1.2 V x 5 mA) + (0.2 V x 5 mA) = 7 mW, well below the 100 mW maximum rating. No heatsinking is required at typical operating levels; however, at elevated ambient temperatures above 85 C derate IF to maintain junction temperature below 100 C.
Allocate a clear keep-out zone of at least 6 mm between the PS2501L-1-F3-A's body and any high-voltage traces on either the primary or secondary side, to preserve the 5000 Vrms isolation rating by avoiding surface arcing paths. Use a slot in the PCB if the design demands a higher isolation distance. Avoid running any traces or vias underneath the optocoupler body, since contamination or solder flux residue under the package can degrade the isolation barrier over time.
To minimize switching time jitter, add a 100 kohm base-emitter resistor between the collector and emitter of the PS2501L-1-F3-A on designs that experience slow turn-off. This negative feedback speeds up the toff transition by providing a discharge path for the base-collector capacitance, reducing storage-time delay from 5 us toward the 2 us range. For the cleanest switching response at low CTR bins, drive the LED at the higher end of its recommended 10 to 20 mA range.
Compliance-Informationen
Lead-free and RoHS-compliant per Renesas product page and datasheets.com entry. AEC-Q100 automotive qualification: not specified in the verified web data; treat as not qualified. REACH, halogen-free, and conflict-mineral statements not present in the verified data; treat as unknown.
