THB3801C Equivalent & Substitute Parts Reference

Part Overview

The THB3801C is a blue LED indication component manufactured by Stanley Electric Co, designed for through-hole mounting applications. This discrete 3V radial LED features a 470nm dominant wavelength with 1200mcd luminous intensity and a 3mm T-1 form factor with clear domed lens. The product is classified as obsolete, necessitating identification of active equivalent components for ongoing design requirements and procurement continuity.

Substiute Parts

THB3801C

Stanley Electric CoIn Stock: 773THB3801C Datasheet

Current PartRFQ

WP710A10QBC/D

KingbrightIn Stock: 29803WP710A10QBC/D Datasheet

SimilarRFQ

XLFBB11W

SunLEDIn Stock: 10563XLFBB11W Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the THB3801C is determined by strict alignment across the following critical parameters:

Primary Compatibility Criteria:

• Color: Blue
• Lens Size: 3mm, T-1 form factor
• Lens Style: Round with Domed Top
• Lens Transparency: Clear
• Mounting Type: Through Hole
• Package / Case: Radial
• Wavelength Range: 465nm to 470nm dominant wavelength

Secondary Electrical Parameters:

• Voltage - Forward (Vf): 3V to 3.3V range acceptable
• Current - Test: 5mA to 20mA range acceptable
• Millicandela Rating: 1200mcd minimum

Regulatory Compliance:

• REACH Status: REACH Unaffected
• ECCN: EAR99

Both identified substitute parts meet these criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

WP710A10QBC/D (Kingbright) is suitable for applications where the THB3801C specifications are required with active product availability. This substitute maintains identical mechanical dimensions (5.90mm height, 3mm T-1 form factor) and comparable optical characteristics (465nm dominant wavelength). The forward voltage increase from 3V to 3.3V and test current increase from 5mA to 20mA require circuit verification. The luminous intensity increase to 1600mcd and expanded viewing angle to 20° provide enhanced optical performance. ROHS3 compliance and unlimited moisture sensitivity rating support modern manufacturing standards.

XLFBB11W (SunLED) is suitable for applications requiring maximum luminous intensity and compact form factor. This substitute provides the highest millicandela rating at 3690mcd with a reduced maximum height of 4.60mm, enabling space-constrained designs. The dominant wavelength of 470nm matches the original specification precisely. Forward voltage and test current parameters align with WP710A10QBC/D. ROHS3 compliance and unlimited moisture sensitivity rating are provided. The reduced height may require mechanical verification in existing PCB layouts.

Both substitutes maintain regulatory compliance (REACH Unaffected, EAR99 classification) and support procurement continuity for the obsolete THB3801C.

Frequently Asked Questions (FAQ)

Q: Can WP710A10QBC/D and XLFBB11W be used interchangeably with THB3801C?

A: Both parts meet the core substitution criteria for blue 3mm T-1 through-hole LEDs with clear domed lenses. However, circuit-level verification is required due to differences in forward voltage (3V vs. 3.3V) and test current (5mA vs. 20mA). The increased luminous intensity in both substitutes may affect visual perception in the application.

Q: What are the key electrical differences between the three parts?

A: The THB3801C operates at 3V with 5mA test current. Both WP710A10QBC/D and XLFBB11W operate at 3.3V with 20mA test current. These differences require circuit redesign or verification to ensure proper LED operation and current limiting resistor adjustment.

Q: Are there mechanical compatibility concerns?

A: WP710A10QBC/D maintains identical maximum height (5.90mm) as the original THB3801C, ensuring direct mechanical compatibility. XLFBB11W has a reduced maximum height of 4.60mm, which may require PCB layout verification for existing designs but provides advantages in space-constrained applications.

Q: What is the wavelength difference between these parts?

A: The THB3801C has a dominant wavelength of 470nm. WP710A10QBC/D has 465nm dominant wavelength, and XLFBB11W has 470nm dominant wavelength. Both fall within the blue spectrum range and are visually indistinguishable in most applications.

Q: Do these substitutes meet current regulatory requirements?

A: Both WP710A10QBC/D and XLFBB11W are ROHS3 compliant and REACH unaffected, meeting current regulatory standards. The original THB3801C does not specify RoHS status but maintains REACH unaffected classification.

Q: Which substitute provides the brightest output?

A: XLFBB11W provides the highest luminous intensity at 3690mcd, compared to 1200mcd for THB3801C and 1600mcd for WP710A10QBC/D. Application requirements determine whether increased brightness is beneficial or requires optical diffusion.

Q: Can I use these parts in existing PCB designs without modification?

A: WP710A10QBC/D can be used as a direct mechanical replacement. However, circuit modifications are required for both substitutes due to the 0.3V forward voltage increase and 15mA current increase. XLFBB11W requires additional mechanical verification due to reduced height.