Equivalent & Substitute Parts for 3HDL-S Red LED Indicator

Part Overview

The 3HDL-S is a red LED indicator manufactured by Bivar Inc., classified as a discrete through-hole component for indication applications. This T-1 form factor LED operates at 2V forward voltage with a 2.5mcd brightness rating and features a diffused red lens with 40° viewing angle. The component is Active in product status and ROHS3 compliant, making it suitable for current production designs. Substitute parts are identified when equivalent mechanical packaging, mounting configuration, and optical characteristics align with application requirements.

Substiute Parts

3HDL-S

Bivar Inc.In Stock: 6813HDL-S Datasheet

Current PartRFQ

5511107801F

DialightIn Stock: 18295511107801F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3HDL-S is determined by strict alignment of the following parameters:

Primary Mechanical Compatibility Criteria:

• Lens Size: 3mm, T-1 form factor
• Mounting Type: Through Hole configuration
• Lens Style: Round with Domed Top geometry

Secondary Optical Criteria:

• Lens Transparency: Diffused
• Color: Red indication
• Wavelength - Peak: 625nm (when specified)

Electrical Operating Criteria:

• Voltage - Forward (Vf): 2V nominal
• Current - Test: 2mA
• Millicandela Rating: 2.5mcd
• Viewing Angle: 40°

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99

The substitute part 5511107801F (Dialight) qualifies based on matching mechanical form factor (3mm T-1 through-hole, round domed lens), mounting configuration (through-hole radial), and regulatory compliance (ROHS3, MSL 1). Electrical and optical parameters for the substitute are not fully specified in available data; however, the part is classified as a red diffused LED indicator in the same package category.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 3HDL-S (Bivar Inc.)

The 3HDL-S remains the specified component with complete electrical and optical parameter documentation. Product status is Active, inventory is available (637 pcs), and full ROHS3 compliance is confirmed. This part is suitable for direct procurement when design requirements match the specified 2V forward voltage, 2mA test current, and 2.5mcd brightness level.

Alternative Selection: 5511107801F (Dialight)

The 5511107801F qualifies as a mechanical and regulatory equivalent based on matching form factor (3mm T-1 through-hole), lens geometry (round domed diffused red), and compliance certifications (ROHS3, MSL 1, EAR99). The right-angle mounting variant accommodates board layouts requiring radial lead orientation. Inventory availability is higher (1778 pcs). Electrical parameters (Vf, test current, brightness) are not specified in available documentation; however, the part is classified within the same LED indicator category and package series (551 series).

Selection Criteria:

• Choose 3HDL-S when complete electrical specification matching is required
• Choose 5511107801F when mechanical form factor and right-angle mounting are primary requirements and electrical parameter variation is acceptable within application tolerance
• Both parts meet regulatory compliance requirements for ROHS3 and export classification (EAR99)

Frequently Asked Questions (FAQ)

Q: Can the 5511107801F directly replace the 3HDL-S in an existing design?

A: Mechanical and regulatory compatibility is confirmed (3mm T-1 through-hole, diffused red lens, ROHS3 compliant). The 5511107801F features right-angle mounting, which may require PCB layout modification. Electrical parameters (forward voltage, test current, brightness) for the 5511107801F are not specified; circuit compatibility depends on whether the substitute operates within the design's voltage and current tolerance window.

Q: What is the difference between standard radial and right-angle mounting for T-1 LEDs?

A: Standard radial mounting positions leads perpendicular to the lens axis for vertical PCB insertion. Right-angle mounting orients leads parallel to the lens axis for horizontal board mounting. The 5511107801F right-angle configuration requires different PCB hole placement and may affect viewing angle orientation in the final assembly.

Q: Are both parts suitable for new production designs?

A: Yes. Both the 3HDL-S and 5511107801F are Active in product status and ROHS3 compliant. The 3HDL-S is recommended for designs requiring exact electrical specification matching. The 5511107801F is suitable for designs where mechanical form factor and compliance are primary criteria.

Q: What does "Diffused" lens transparency mean?

A: A diffused lens scatters light across a wider viewing angle, producing a softer, more uniform glow compared to a clear lens. Both the 3HDL-S and 5511107801F feature diffused red lenses, ensuring consistent optical appearance in indication applications.

Q: Are there any moisture sensitivity concerns with these parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage practices apply without special desiccant or humidity control requirements.