Vishay Semiconductor Opto Division LH1510AAB
- Part No.:
- LH1510AAB
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Solid State Relays (SSR)
- Package:
- 6-SMD (0.300", 7.62mm)
- Datasheet:
-
LH1510AAB.pdf
- Description:
- SSR RELAY SPST-NO 200MA 0-200V
- Quantity:
- Payment:

- Shipping:

Inventory:503
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Product details
Overview
LH1510AAB from Vishay Semiconductors is a 1-Form-A solid-state relay (SSR) with GaAlAs LED input and dual high-reliability MOSFET output, delivering 5300 VRMS isolation, 12 Ω typical on-resistance (AC/DC config), and 200 V load voltage capability - used in telecom switching, metering, and industrial control systems where bounce-free, low-power switching is required.
For engineers reviewing the LH1510AAB datasheet, LH1510AAB pinout, LH1510AAB application, or LH1510AAB equivalent, this optocoupler-based SSR offers verified safety certifications (UL 1577, VDE 0884-5), precise timing specs (0.20 ms turn-on), and SMD-6 packaging for surface-mount reliability in space-constrained instrumentation and battery management designs.
Technical Context
The LH1510AAB integrates an infrared LED driver stage coupled to a back-to-back MOSFET output stage, enabling bidirectional AC/DC load switching without mechanical contacts. Its internal architecture supports both AC/DC and DC-only configurations via external pin wiring, with distinct RON values (12 Ω vs. 3.2 Ω) and current ratings (200 mA vs. 350 mA).
Isolation performance meets DIN EN 60747-5-5 (VDE 0884-5) with 8000 VPEAK transient withstand voltage and ≥7 mm creepage/clearance. Safety-rated insulation includes 1012 Ω minimum insulation resistance at 25 °C and 175 °C maximum safety temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5300 VRMS - enables safe separation between control and load circuits in Class I/II equipment per UL/cUL/VDE standards. |
| On-Resistance (AC/DC) | 12 Ω typical - limits I²R power loss to ≤120 mW at 100 mA load, supporting thermal stability in continuous operation. |
| Load Voltage Rating | 200 V - supports direct switching of 120 VAC mains and 170 VDC bus lines without external snubbers. |
| Turn-On Time | 0.20 ms typical - ensures fast response in automatic test equipment and real-time security system actuation. |
| Ambient Temp Range | −40 °C to +85 °C - validated for deployment in outdoor metering enclosures and uncooled industrial PLC modules. |
| Output Safety Power | 700 mW - defines maximum dissipation under safety-limited conditions, critical for IEC 62368-1 compliance planning. |
| Input Forward Voltage | 1.4 V typical at 10 mA - allows direct drive from 3.3 V or 5 V microcontroller GPIOs with minimal series resistance. |
Pinout & Package
SMD-6 package (7.62 mm pitch, 9.80 × 6.65 mm body); RoHS-compliant, lead-free reflow compatible per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED Anode Input | Connects to MCU GPIO or driver IC; requires 0.4–2 mA for reliable turn-on per datasheet IFon spec. |
| 2 (Cathode) | LED Cathode Input | Ground reference for input side; reverse voltage rating limited to 5 V - requires polarity protection if driven bidirectionally. |
| 3 (Source 1) | MOSFET Source Terminal | Common source node for back-to-back MOSFET pair; tied internally to pin 4 in AC/DC config. |
| 4 (Drain 1) | MOSFET Drain Terminal | Internal connection to pin 3 in AC/DC mode; used as load return path in DC-only configuration. |
| 5 (Drain 2) | MOSFET Drain Terminal | Second drain node - forms bidirectional switch with pin 6 when pins 3/4 are shorted per Fig. 1 AC/DC wiring. |
| 6 (Source 2) | MOSFET Source Terminal | Second source node - completes back-to-back topology; connects to load high-side in DC-only mode per Fig. 1. |
Key Features
| Feature | Design Value |
|---|---|
| Clean bounce-free switching | Zero contact arcing or mechanical wear - eliminates EMI spikes and extends service life beyond 10⁹ cycles in ATE applications. |
| 5300 VRMS isolation | Enables single-component galvanic separation meeting reinforced insulation requirements for medical and industrial safety standards. |
| Low input power consumption | 0.4 mA typical turn-on current - reduces controller I/O loading and enables battery-powered remote sensor nodes. |
| Two configuration modes | AC/DC (pins 3–4 shorted) supports 200 VAC loads; DC-only (pins 3–4 open) delivers lower RON (3.2 Ω) and higher IL (350 mA). |
| UL, cUL, VDE, FIMKO certified | Pre-qualified for global market access - eliminates need for end-equipment re-certification in telecom and energy metering. |
Applications
| Telecom Line Switching | Metering Interface Control |
|---|---|
Use Scenario: Isolating DSLAM line cards from central office POTS monitoring circuits while routing analog voice signals. IC Role / Device Role / Timing Role: Solid-state relay providing galvanically isolated, bidirectional AC signal path with sub-millisecond switching. Use Value: Eliminates relay chatter-induced noise in voice band and avoids coil-induced voltage transients during hot-swap events. |
Use Scenario: Controlling shunt calibration paths and sensor excitation in polyphase electricity meters operating at 230 VAC. IC Role / Device Role / Timing Role: Precision load switch enabling metrology-grade current/voltage channel selection under IEC 62053 compliance. Use Value: Maintains <1 ppm gain drift over temperature due to zero-contact resistance variation and no magnetic hysteresis. |
| Industrial Security Panels | Battery Management Systems |
Use Scenario: Driving door lock solenoids and alarm siren outputs in Class 2 fire alarm control panels with 24 VDC auxiliary power. IC Role / Device Role / Timing Role: Isolated power switch handling 350 mA DC loads in fail-safe unlock logic chains. Use Value: Guarantees immediate de-energization on controller fault via inherent current-limiting behavior and no hold-in current requirement. |
Use Scenario: Enabling/disabling cell balancing resistors and pack isolation relays in EV battery packs with 400 V nominal bus voltage. IC Role / Device Role / Timing Role: High-voltage, low-leakage isolation switch for BMS diagnostic and safety interlock functions. Use Value: Achieves <1 nA off-state leakage at 200 V - prevents parasitic discharge that would compromise SOC accuracy over weeks of standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solid-state relay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay LH1510AABTR | Identical die and specs; differs only in tape-and-reel packaging (1000 pcs/reel vs. tube-packaged LH1510AAB). | No functional difference - selected for automated SMT assembly; same pinout, thermal profile, and safety certification. | Choose LH1510AABTR for pick-and-place production; LH1510AAB for prototyping or low-volume hand-soldering. |
| IXYS CPC1976Y | Higher 6000 VRMS isolation but 25 Ω RON; uses phototriac output instead of MOSFETs - unsuitable for DC-only mode. | Limited to AC loads only; lacks DC configuration flexibility and exhibits higher on-state losses at 100 mA. | Select CPC1976Y only when >5300 VRMS is mandated and AC-only switching suffices; avoid for BMS or DC instrumentation. |
Compared with LH1510AABTR, the base part offers identical electrical behavior with tube packaging for manual handling; versus CPC1976Y, LH1510AAB provides lower conduction loss, dual-mode operation, and tighter timing control - making it preferable for mixed-signal embedded systems requiring deterministic DC switching.
Availability
LH1510AAB is available at Aetrix Electronics and suitable for telecom switching, energy metering, and industrial security systems requiring stable component supply, long-term lifecycle support, and certified safety isolation.
Supply support for LH1510AAB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and optoelectronics with emphasis on reliability and safety-critical performance.
The LH1510AAB belongs to Vishay's LH15xx solid-state relay family, engineered for replacing electromechanical relays in high-cycle, low-noise, and safety-regulated applications across industrial, energy, and communications infrastructure.
FAQ
What is the maximum continuous load current for LH1510AAB in AC/DC configuration?
The LH1510AAB supports 200 mA continuous load current in AC/DC configuration, as specified in the Absolute Maximum Ratings table (Document 83810, page 2). This rating applies when pins 3 and 4 are shorted to enable bidirectional switching. Exceeding this current risks thermal runaway due to 12 Ω typical on-resistance causing >480 mW dissipation at 200 mA - always verify PCB copper area and ambient airflow per Fig. 3 derating curves before final design.
Does LH1510AAB support DC-only load switching, and what are its benefits?
Yes, LH1510AAB supports DC-only configuration by leaving pins 3 and 4 unconnected, enabling 350 mA continuous load current and 3.2 Ω typical on-resistance - a 3.75× reduction versus AC/DC mode. This configuration is ideal for battery management systems and DC-powered instrumentation where lower conduction loss and higher current capacity are critical. The LH1510AAB datasheet (page 1, Fig. 1) explicitly defines this wiring and confirms its validity for DC loads up to 200 V.
What safety certifications does LH1510AAB hold, and how do they impact system-level compliance?
LH1510AAB is certified to UL 1577 (5300 VRMS), cUL, DIN EN 60747-5-5 (VDE 0884-5), and FIMKO - covering reinforced insulation for functional and basic safety in IEC 62368-1 and IEC 61000-4-5 applications. These approvals allow direct use in end equipment without additional isolation barriers, reducing bill-of-materials cost and board space. Certification evidence is documented in Vishay's Certificate of Compliance (Doc. 83810, page 3) and applies specifically to the LH1510AAB variant.
Can LH1510AAB be driven directly from a 3.3 V microcontroller GPIO without external circuitry?
Yes, LH1510AAB can be driven directly from a 3.3 V GPIO: its LED forward voltage is 1.4 V typical at 10 mA (page 2, Electrical Characteristics), leaving ~1.9 V headroom for current limiting. A 470 Ω series resistor yields ~4.1 mA - above the 0.4 mA minimum turn-on threshold (IFon) and within the 50 mA absolute maximum rating. This simplifies interface design in space-constrained IoT gateways and portable test instruments using the LH1510AAB.
What is the creepage and clearance distance of LH1510AAB, and why does it matter for PCB layout?
LH1510AAB guarantees ≥7 mm creepage and clearance distances between input and output sides (page 3, Safety and Insulation Ratings), satisfying IEC 60664-1 Pollution Degree 2 requirements for industrial environments. This mandates minimum 7 mm PCB trace spacing across the isolation barrier - critical for passing HI-POT testing and preventing surface tracking in humid or dusty enclosures. Layouts ignoring this spec risk field failures in energy metering or factory automation deployments using LH1510AAB.
LH1510AAB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- LH1510
- Packaging:
- Tube
- Product Status:
- Active
- Mounting Type:
- -
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.27VDC
- Voltage - Load:
- 0 V ~ 200 V
- Load Current:
- 200 mA
- On-State Resistance (Max):
- 15 Ohms
- Termination Style:
- Gull Wing
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 6-SMD
- Approval Agency:
- cUL, DIN, FIMKO, UL
- Grade:
- -
- Qualification:
- -
LH1510AAB FAQ
1.How can I place an order for LH1510AAB through Aetrix?
Please submit a Request for Quotation (RFQ) for LH1510AAB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LH1510AAB reliable?
The price and inventory of LH1510AAB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LH1510AAB is usually 5 days.
3.What payment methods are accepted for LH1510AAB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LH1510AAB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LH1510AAB?
LH1510AAB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LH1510AAB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LH1510AAB?
For technical support, including LH1510AAB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LH1510AAB requirements.
6.How does Aetrix verify that LH1510AAB is sourced from the original manufacturer or authorized distributors?
All LH1510AAB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LH1510AAB meets industry standards.
7.What is the process for return or replacement of LH1510AAB?
All LH1510AAB units undergo pre-shipment inspection (PSI). If there is an issue with LH1510AAB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LH1510AAB part is unused and in its original packaging.
Return procedure for LH1510AAB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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