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PLED18Q12 PLED18Q12 is an open LED protector from Littelfuse that provides a shunt path when an LED fails open. Breakdown voltage 18V min, on-state current 1A max, in a surface-mount QFN package.
Mfr Part #:

PLED18Q12

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
PLED18Q12 is an open LED protector from Littelfuse that provides a shunt path when an LED fails open. Breakdown voltage 18V min, on-state current 1A max, in a surface-mount QFN package.
Total Stock: 1,120 pcs
$ Price Range: $0.28 - $1.31

PLED18Q12 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
120 pcs
120 pcs On Request 1 On Request On Request On Request On Request On Request

PLED18Q12 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Critical Rate of Rise of Off-State Voltage
Halogen Free
Holding Current
Industrial Grade
Lead Style
Maximum PWM Frequency
Mounting Type
Number of Circuits
Off-State Voltage
On-State Current
On-State Voltage
Operating Temperature Range
SVHC Present
Storage Temperature
Storage Temperature Range
Supplier Device Package
Switching Current
Tape & Reel
Technology
Thermal Resistance (Junction to Ambient) (Nominal @ QFN package, aluminum PCB)
Thermal Resistance (Junction to Ambient) (Nominal @ QFN package, standard FR -4 PCB)
Voltage

PLED18Q12 Description

Short technical summary and product information.

The PLED18Q12 is part of Littelfuse's PLED Series of open LED protectors. These devices provide a switching electronic shunt path when an LED in a string fails as an open circuit, ensuring the remaining LEDs continue to function.

 

Key electrical specifications include a minimum breakdown voltage of 18V, minimum off-state voltage of 33V, minimum holding current of 5mA, and minimum switching current of 100mA. The maximum on-state current is 1A with a maximum on-state voltage of 1.2V at 1A. The device supports PWM frequencies up to 30kHz and has a critical rate of rise of off-state voltage of 250V/µs.

 

The PLED18Q12 is available in a surface-mount package (2-TDFN / 2-QFN 3x3mm) and operates over a junction temperature range of -40°C to +150°C. Thermal resistance is 120°C/W on standard FR-4 PCB and 60°C/W on aluminum PCB. It is RoHS-compliant and halogen-free.

PLED18Q12 Quick Information

Product Type: LED Shunt Protector
Series: PLED
Canonical Name: PLED18Q12 Open LED Protector
Subcategory: Lighting Protection

PLED18Q12 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

PLED18Q12 Estimated Pricing

Qty Low High
1+ $1.31 $1.31
10+ $0.82 $0.82
100+ $0.54 $0.54
500+ $0.42 $0.42
1,000+ $0.35 $0.35
2,500+ $0.35 $0.35
5,000+ $0.28 $0.28

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

PLED18Q12 Features

  • LED open-circuit protection shunt device.
  • Minimum 18V breakdown voltage.
  • Maximum 1A on-state current.
  • Surface mount QFN 3x3mm package.
  • RoHS compliant and halogen-free.

PLED18Q12 Applications

  • Suitable for outdoor LED street lighting.
  • Used in aircraft runway lighting systems.
  • Ideal for LED signage and warning lights.
  • Compatible with 1-3 watt LED strings.

PLED18Q12 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the breakdown voltage of the PLED18Q12?

The minimum breakdown voltage is 18V.

What is the maximum on-state current?

The maximum on-state current is 1A.

What package is the PLED18Q12 available in?

It is available in a surface mount 2-TDFN (2-QFN 3x3mm) package.

What is the operating temperature range?

The operating junction temperature range is -40°C to +150°C.

Is the PLED18Q12 RoHS compliant?

Yes, the datasheet states it is RoHS compliant and halogen-free.

What is the holding current?

The minimum holding current is 5mA.

What PWM frequency can the PLED18Q12 support?

It supports PWM frequencies up to 30kHz.

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