LH1520AB Vishay Relay or Contactor (Dual-In-Line Packages) In Stock
Vishay LH1520AB is a dual-element solid-state relay in DIP-8 package with 5300 V isolation voltage and DC input requiring only 1.15 V control voltage and 0.9 mA control current. UL and VDE approved. Worldwide shipping available.
- Manufacturer
- Vishay
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LH1520AB Datasheet PDF
- Category
- Relay or Contactor
- Price
- From $2.0318(MOQ 5)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-high 5300 V isolation voltage between input and output for safety-critical applications
- Dual separate output elements in a single DIP-8 package enabling two independent switching channels
- Low control current of 0.9 mA and 1.15 V control voltage for direct microcontroller interfacing
- DC input type with maximum forward current of 50 mA on the LED drive input
- UL and VDE approved for compliance with North American and European safety standards
- Pb-free construction (JESD-609 e3) for RoHS-compliant assembly processes
Applications
The LH1520AB dual solid-state relay is used in safety-isolated switching applications such as medical instrumentation signal switching, industrial I/O isolation, telecom line interface circuits, and programmable logic controller (PLC) output modules where 5300 V galvanic isolation is required. Its two separate switching elements in one DIP-8 package allow simultaneous control of two independent signal paths while sharing common drive circuitry. The low 0.9 mA control current enables direct drive from low-power microcontroller GPIO pins without additional driver circuitry.
Specifications
| Factory Lead Time | 6Weeks |
| YTEOL | 5.59 |
| Additional Feature | UL APPROVED, VDE APPROVED |
| Configuration | SEPARATE, 2 ELEMENTS |
| Control Current | 0.0009A |
| Control Voltage | 1.15V |
| Forward Current-Max | 0.05A |
| Input Type | DC |
| Isolation Voltage-Max | 5300V |
| JESD-609 Code | e3 |
| Number of Elements | 1 |
| On-State Current-Max | 0.15A |
| On-state Resistance-Max | 25Ω |
| Optoelectronic Device Type | TRANSISTOR OUTPUT SSR |
| Output Circuit Type | MOSFET |
| Overall Height | 3.8mm |
| Overall Length | 9.9mm |
| Terminal Finish | Matte Tin (Sn) |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.40.95.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What isolation voltage does the LH1520AB provide, and which safety certifications validate its use in medical or industrial equipment?
The LH1520AB offers a maximum isolation voltage of 5300 V between its control and output sides, well above the 3750 V and 4000 V thresholds required by many medical and industrial safety standards. It carries both UL and VDE approvals, confirming compliance with North American (UL) and European (VDE/IEC) safety requirements for reinforced or functional isolation in equipment where operator safety is critical.
How does the LH1520AB's control current requirement simplify interface circuit design?
The LH1520AB requires only 0.9 mA of control current at 1.15 V forward voltage to activate its LED input, which is low enough for direct drive from most 3.3 V or 5 V microcontroller GPIO outputs without a transistor driver stage. This reduces BOM complexity and PCB area compared to solid-state relays requiring 5–10 mA or more of drive current.
What does having 2 separate switching elements in LH1520AB's DIP-8 package enable in a circuit?
The LH1520AB packs 2 electrically independent output channels in a single 8-pin DIP package, allowing designers to switch 2 separate signal lines or circuits simultaneously while sharing a common control and ground connection. This dual-channel configuration saves board space and connector count compared to using 2 individual single-element relays, and its DIP-8 footprint simplifies manual assembly or through-hole prototyping.
What is the lead time for LH1520AB and how does its approval status affect procurement for regulated industries?
The LH1520AB has a factory lead time of approximately 6 weeks, making it one of the shorter lead-time components for safety-rated relays. Its dual UL and VDE approval status is often a hard procurement requirement for equipment destined for North American and European regulated markets, including medical devices, industrial automation, and telecommunications infrastructure. Confirming approval marks during design-in prevents costly re-certification if a non-approved alternative is substituted later.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $2.8099 | $14.05 |
| 20+ | $2.1614 | $43.23 |
| 50+ | $2.0318 | $101.59 |
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