PT334-6C Phototransistor 940nm Equivalent & Substitute Parts

Part Overview

The PT334-6C is an active phototransistor manufactured by Everlight Electronics Co Ltd, designed for 940nm infrared detection applications. This component features a top-view radial configuration with a 5mm diameter package (T 1 3/4) and through-hole mounting. The PT334-6C is specified for operation across -40°C to 85°C and maintains ROHS3 compliance with MSL 1 rating. Alternative equivalent parts may be required due to inventory constraints, supply chain considerations, or specific packaging preferences while maintaining functional compatibility.

Substiute Parts

PT334-6C

Everlight Electronics Co LtdIn Stock: 4007308PT334-6C Datasheet

Current PartRFQ

WP7113P3C

KingbrightIn Stock: 1323WP7113P3C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PT334-6C is determined by strict alignment of the following critical parameters:

Wavelength Matching: The substitute part must operate at 940nm to maintain infrared detection compatibility with the original application circuit.

Electrical Specifications: Collector-emitter breakdown voltage (30V maximum) and collector current rating (20mA maximum) establish the electrical operating envelope. Substitute parts must not exceed these limits.

Mounting and Orientation: Both the main part and substitute must feature through-hole mounting with top-view orientation to ensure PCB assembly compatibility without circuit redesign.

Package Configuration: Radial package geometry with 5mm diameter footprint is required for mechanical fit in existing designs.

Compliance Standards: ROHS3 compliance and REACH unaffected status are mandatory for regulatory alignment.

The WP7113P3C from Kingbright meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: PT334-6C remains the preferred choice for new designs and applications requiring unlimited moisture sensitivity protection (MSL 1). This component offers superior storage stability and is suitable for long-term inventory management.

Substitute Selection: WP7113P3C qualifies as a functional equivalent when PT334-6C availability is constrained. The substitute maintains identical wavelength, voltage rating, temperature range, and mounting configuration. The MSL 4 rating (72-hour moisture sensitivity window) requires controlled storage conditions but does not affect operational performance in sealed applications.

Compliance Alignment: Both components satisfy ROHS3 and REACH requirements, ensuring regulatory compliance for EU and international markets.

Packaging Consideration: Selection between bulk (PT334-6C) and bag (WP7113P3C) packaging depends on procurement volume and inventory management protocols.

Frequently Asked Questions (FAQ)

Q: Can WP7113P3C be used as a direct replacement for PT334-6C in existing circuit designs?

A: Yes. Both components share identical wavelength (940nm), collector-emitter breakdown voltage (30V), operating temperature range (-40°C to 85°C), through-hole mounting, top-view orientation, and radial package configuration. No circuit modifications are required.

Q: What is the significance of the MSL rating difference between these parts?

A: PT334-6C carries MSL 1 (unlimited moisture sensitivity), while WP7113P3C carries MSL 4 (72-hour moisture sensitivity). This affects storage and handling procedures. MSL 4 components require protective packaging and controlled humidity environments during storage. Once soldered into a sealed application, this difference has no operational impact.

Q: Are there any electrical performance differences between PT334-6C and WP7113P3C?

A: Both components are specified for 940nm wavelength and 30V maximum collector-emitter breakdown voltage. PT334-6C specifies maximum collector current (20mA) and dark current (100nA). WP7113P3C specifies maximum power dissipation (100mW). These specifications are complementary and indicate comparable performance envelopes.

Q: What packaging formats are available for each part?

A: PT334-6C is supplied in bulk packaging format. WP7113P3C is supplied in bag packaging format. Bulk packaging typically suits high-volume manufacturing, while bag packaging accommodates smaller order quantities.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both PT334-6C and WP7113P3C are ROHS3 compliant and REACH unaffected, satisfying current EU regulatory requirements and international compliance standards.

Q: Which part should be selected for new product designs?

A: PT334-6C is recommended for new designs due to superior MSL 1 rating, providing unlimited storage stability and reduced handling risk. WP7113P3C serves as a qualified alternative when supply constraints require substitution.