Mfr Part #:

LH1540AAB

Mfr Name: Vishay

The Vishay Dale LH1540AAB is a robust Solid-State Relay (SSR) with a 1 Form A (SPST normally open) configuration. It is designed for applications requiring reliable switching.

✓ Total Stock: 160 pcs

$ Price Range: $1.93

LH1540AAB Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Partservice ✓ Non-Authorised Inventory information	160 pcs On Request	160 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
HK XINYUANXIN ELECTRONIC TECH LIMITED ✓ Non-Authorised Inventory information	On Request On Request	On Request	On Request	1	On Request	On Request	On Request	On Request	On Request

LH1540AAB Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Vishay
Storage Temperature	-40 °C to +150 °C
Tape & Reel	Tape & Reel

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LH1540AAB Description

Short technical summary and product information.

The Vishay Dale LH1540AAB is a 1 Form A (SPST normally open) Solid-State Relay (SSR) designed to replace electromechanical relays in demanding applications. It utilizes a GaAlAs LED for actuation and MOSFETs for the output switch, providing clean, bounce-free switching.

Key electrical specifications include an isolation test voltage of 5300 VRMS, a maximum load voltage of 350 V, and continuous load current capabilities of 120 mA for AC/DC configurations and 250 mA for DC-only configurations. The typical on-resistance is 22 Ω. The device operates within an ambient temperature range of -40 °C to +85 °C.

This SSR is ideal for general telecom switching, security equipment, instrumentation, and industrial control applications. It is constructed using a GaAlAs LED for actuation control and MOSFETs for the switch output. The LH1540AAB is available in an SMD-6 package, suitable for surface mounting.

Agency approvals include UL, cUL, DIN EN 60747-5-5 (VDE 0884), and FIMKO, indicating its suitability for various international markets.

LH1540AAB Quick Information

Product Type: Solid-State Relay

Canonical Name: LH1540AAB Solid-State Relay

Subcategory: SPST Normally Open Switch

LH1540AAB Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

LH1540AAB Estimated Pricing

Qty	Low	High
1+	$1.93	$1.93

Estimated market price range - modelled values for guidance only, not live distributor offers.

LH1540AAB Features

1 Form A normally open switch.
5300 VRMS isolation test voltage.
350 V maximum load voltage.
120 mA / 250 mA load current.
Bounce-free switching.

LH1540AAB Applications

General telecom switching.
Security equipment.
Instrumentation.
Industrial controls.

LH1540AAB FAQs

6 frequently asked questions generated from this part’s specifications.

What is the isolation test voltage for the LH1540AAB?

The isolation test voltage is 5300 VRMS.

What is the typical on-resistance of the LH1540AAB?

The typical on-resistance is 22 Ω.

What is the maximum load voltage for the LH1540AAB?

The maximum load voltage is 350 V.

What is the continuous load current for the LH1540AAB?

The continuous load current is 120 mA for AC/DC configuration and 250 mA for DC-only configuration.

What is the operating temperature range of the LH1540AAB?

The operating temperature range is -40 °C to +85 °C.

What package is the LH1540AAB available in?

The LH1540AAB is available in an SMD-6 package.