PLED5HT Equivalent & Substitute Parts

Part Overview

The PLED5HT is a Lighting Protection LED Shunt rated at 4.6V for surface mount applications, manufactured by Littelfuse Inc. under the PLED® series. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The PLED5HT provides electrostatic discharge (ESD) and transient protection for LED circuits in surface mount configurations.

Substiute Parts

PLED5HT

Littelfuse Inc.In Stock: 62209PLED5HT Datasheet

Current PartRFQ

PLED6N

LittelfuseIn Stock: 2747PLED6N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PLED5HT is determined by the following critical parameters:

• Technology: LED Shunt protection devices only
• Series: PLED® family components
• Number of Circuits: Single circuit configuration
• Applications: LED Protection functionality
• Mounting Type: Surface mount only
• Regulatory Compliance: ROHS3 Compliant minimum

The PLED6N qualifies as a substitute based on matching technology (LED Shunt), series (PLED®), circuit count (1), application (LED Protection), and mounting type (Surface Mount). Both components maintain ROHS3 compliance and are designed for identical functional purposes within LED protection circuits.

Parameter Comparison

Engineering Selection Recommendations

The PLED6N is an active product substitute for the obsolete PLED5HT. Both components are manufactured by Littelfuse under the PLED® series and maintain identical functional classification as LED Shunt protection devices. The PLED6N offers improved moisture sensitivity characteristics (MSL 1 versus MSL 3), providing superior reliability in storage and handling environments. Both parts maintain ROHS3 compliance and are suitable for LED protection applications in surface mount configurations. The primary design consideration is the package transition from TO-243AA (SOT-89-3) to SOD-123F, which requires PCB layout verification for mechanical fit and electrical connectivity.

Frequently Asked Questions (FAQ)

Q: Can the PLED6N directly replace the PLED5HT in existing designs?

A: The PLED6N provides equivalent LED Shunt protection functionality as the PLED5HT. However, the package change from TO-243AA to SOD-123F requires PCB footprint modification. Electrical performance compatibility must be verified against specific circuit requirements, particularly voltage clamping characteristics and current handling specifications.

Q: What is the significance of the package change from SOT-89-3 to SOD-123F?

A: SOT-89-3 and SOD-123F are distinct surface mount packages with different physical dimensions and pin configurations. PCB layout redesign is necessary to accommodate the PLED6N package. Component placement, trace routing, and thermal management considerations may differ between the two packages.

Q: Does the PLED6N offer any advantages over the PLED5HT?

A: The PLED6N is an active product with improved moisture sensitivity rating (MSL 1 versus MSL 3), indicating superior performance in humid storage conditions and extended shelf life without baking requirements. Both components maintain ROHS3 compliance.

Q: Are there any voltage rating differences between these parts?

A: The PLED5HT specifies a 4.6V voltage rating with 5.2V clamping voltage. The PLED6N voltage specifications are not provided in available documentation. Detailed electrical characterization should be obtained from the manufacturer for voltage-dependent applications.

Q: What is the inventory status for these parts?

A: The PLED5HT (obsolete) has 62,150 pieces available. The PLED6N (active) has 2,674 pieces available in Tape & Reel packaging format.