3BWD-201 LED Blue Diffused T-1 Through Hole Equivalent & Substitute Parts

Part Overview

The 3BWD-201 is a blue diffused LED indicator manufactured by Bivar Inc., designed for discrete 4V radial through-hole applications. This component features a 3mm T-1 lens form factor with 10mcd brightness rating and 35° viewing angle, suitable for standard LED indication circuits.

The 3BWD-201 carries an Obsolete product status. Locating equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Substiute Parts

3BWD-201
Bivar Inc.In Stock: 7323BWD-201 Datasheet
3BWD-201
Current Part
3BWD-F
Bivar Inc.In Stock: 8783BWD-F Datasheet
3BWD-F
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number 3BWD-201
Manufacturer Bivar Inc.
Product Status Obsolete
Color Blue
Lens Transparency Diffused
Lens Size 3mm, T-1
Voltage - Forward (Vf) Typical 4V
Current - Test 20mA
Millicandela Rating 10mcd
Viewing Angle 35°
Mounting Type Through Hole
Wavelength - Peak 430nm
Package / Case Radial
Supplier Device Package T-1
Height (Max) 5.10mm
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 3BWD-201 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

  • Forward voltage (Vf): 4V nominal
  • Test current: 20mA
  • Peak wavelength: 430nm (blue spectrum)
  • Millicandela rating: 10mcd

Mechanical Compatibility Parameters:

  • Lens size: 3mm T-1 form factor
  • Lens color and transparency: Blue diffused
  • Mounting type: Through hole radial configuration
  • Package type: Radial

Environmental & Compliance Parameters:

  • Moisture Sensitivity Level: 1 (Unlimited)
  • ECCN: EAR99
  • HTSUS: 8541.41.0000

The 3BWD-F qualifies as a parametric equivalent substitute based on matching all electrical and mechanical parameters. Differences in product status (Active vs. Obsolete), packaging format (Bulk vs. standard), and maximum height (5.30mm vs. 5.10mm) do not affect functional substitution capability within the specified parameter tolerance.

Parameter Comparison

Parameter 3BWD-201 (Main Part) 3BWD-F (Substitute) Match Status
Manufacturer Bivar Inc. Bivar Inc. Identical
Color Blue Blue Identical
Lens Transparency Diffused Diffused Identical
Lens Size 3mm, T-1 3mm, T-1 Identical
Voltage - Forward (Vf) Typical 4V 4V Identical
Current - Test 20mA 20mA Identical
Millicandela Rating 10mcd 10mcd Identical
Viewing Angle 35° 35° Identical
Mounting Type Through Hole Through Hole Identical
Wavelength - Peak 430nm 430nm Identical
Package / Case Radial Radial Identical
Supplier Device Package T-1 T-1 Identical
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited) Identical
Product Status Obsolete Active Different
Height (Max) 5.10mm 5.30mm Within tolerance

Engineering Selection Recommendations

The 3BWD-F serves as the direct parametric equivalent for the obsolete 3BWD-201. Selection of the 3BWD-F is supported by:

Product Status Consideration: The 3BWD-F maintains Active product status, ensuring ongoing availability and supply chain continuity compared to the Obsolete 3BWD-201.

Compliance Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining regulatory compliance for existing applications.

Electrical & Optical Equivalence: All critical electrical parameters (4V forward voltage, 20mA test current, 10mcd brightness) and optical specifications (430nm peak wavelength, 35° viewing angle, blue diffused lens) are identical between the main part and substitute.

Mechanical Compatibility: The 3mm T-1 through-hole radial package format is identical. The maximum height difference (5.30mm vs. 5.10mm) represents a 0.20mm increase and does not affect standard PCB layout or mechanical clearance requirements for typical LED indicator applications.

Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can the 3BWD-F directly replace the 3BWD-201 in existing circuit designs?

A: Yes. The 3BWD-F matches all electrical parameters (4V forward voltage, 20mA test current) and optical specifications (10mcd, 430nm peak wavelength, 35° viewing angle) required for the 3BWD-201. The through-hole radial package format and 3mm T-1 lens form factor are identical, enabling direct PCB footprint compatibility.

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

A: The 3BWD-F has a maximum height of 5.30mm compared to 5.10mm for the 3BWD-201, a difference of 0.20mm. This minor variation does not affect standard LED indicator applications and remains within typical mechanical clearance tolerances for through-hole component placement.

Q: Why is the 3BWD-201 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production of this part number. The 3BWD-F, carrying Active status, represents the current production equivalent and ensures long-term supply availability.

Q: Are there packaging differences between these parts?

A: The 3BWD-201 uses standard packaging, while the 3BWD-F is available in Bulk packaging format. Both contain identical components; packaging format affects order quantity and handling but not electrical or mechanical performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 3BWD-201 and 3BWD-F share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, maintaining regulatory compliance for export and trade purposes.

Q: Is moisture sensitivity a consideration for these LED indicators?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard storage and handling procedures apply without special environmental controls.

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