SMP6-UWDW Equivalent & Substitute Parts

Part Overview

The SMP6-UWDW is a warm white LED indication component manufactured by Bivar Inc., featuring a 4000mcd millicandela rating with a 4500K color temperature. This discrete 3.3V surface mount LED is housed in a 6-SMD, J-Lead package with a diffused round lens (4.00mm diameter). The component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Substiute Parts

SMP6-UWDW

Bivar Inc.In Stock: 2214SMP6-UWDW Datasheet

Current PartRFQ

SMTL6-UWDW

Bivar Inc.In Stock: 46716SMTL6-UWDW Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SMP6-UWDW is based on strict electrical and mechanical parameter alignment. The primary substitute, SMTL6-UWDW, maintains compatibility through the following criteria:

Electrical Parameters (Must Match):

• Color: White, Warm (identical)
• Wavelength - Dominant: 4500K (identical)
• Millicandela Rating: 4000mcd (identical)
• Current - Test: 60mA (identical)
• Viewing Angle: 140° (identical)

Mechanical Parameters (Must Match):

• Package / Case: 6-SMD, J-Lead (identical)
• Lens Size: 4.00mm Dia (identical)
• Lens Transparency: Diffused (identical)
• Mounting Type: Surface Mount (identical)

Voltage Consideration: The substitute part operates at 3V typical forward voltage, compared to 3.3V for the original. This 0.3V difference is within acceptable tolerance for most circuit designs using current-limiting resistors, as the voltage drop variance is accommodated by standard resistor value adjustments.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SMTL6-UWDW

The SMTL6-UWDW is the direct equivalent for the obsolete SMP6-UWDW. Selection of this substitute is based on:

1. Product Status: SMTL6-UWDW maintains active production status with 46,630 units in stock, ensuring long-term supply availability compared to the obsolete SMP6-UWDW.

2. Electrical Equivalence: All critical electrical parameters are identical, including color temperature (4500K), brightness (4000mcd), test current (60mA), and viewing angle (140°).

3. Mechanical Compatibility: Package type (6-SMD, J-Lead), lens size (4.00mm), and mounting method (surface mount) are identical, ensuring PCB footprint compatibility without layout modifications.

4. Compliance Certifications: Both parts share identical ECCN (EAR99), HTSUS (8541.41.0000), and MSL (4) classifications. The substitute carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

5. Voltage Tolerance: The 0.3V forward voltage difference (3V vs. 3.3V) is accommodated through standard circuit resistor value adjustments and does not require design changes.

6. Dimensional Tolerance: Minor dimensional variations (5.40mm vs. 5.00mm length; 1.60mm vs. 1.50mm height) fall within acceptable PCB assembly tolerances and do not impact functionality or mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can SMTL6-UWDW be used as a direct drop-in replacement for SMP6-UWDW without circuit modifications?

A: Yes, for most applications. The electrical parameters are equivalent, and the package footprint is identical. The 0.3V forward voltage difference may require minor resistor value adjustment in the current-limiting circuit, but this is a standard design practice and does not constitute a functional incompatibility.

Q: What is the difference between the SMP6-UWDW and SMTL6-UWDW packaging?

A: The primary packaging difference is the supplier device package designation. SMP6-UWDW uses standard packaging, while SMTL6-UWDW is supplied in Tape & Reel (TR) format, which is standard for high-volume production. Both use the same 6-PLCC footprint and are mechanically compatible.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The SMTL6-UWDW additionally carries ROHS3 compliance and REACH unaffected status, making it suitable for applications with modern environmental requirements.

Q: Why is the SMP6-UWDW classified as obsolete?

A: The SMP6-UWDW has been discontinued by the manufacturer. The SMTL6-UWDW represents the active production equivalent and should be used for all new designs and procurement.

Q: Will the minor dimensional differences (length and height) affect PCB assembly?

A: No. The dimensional variations (5.40mm vs. 5.00mm length; 1.60mm vs. 1.50mm height) are within standard PCB assembly tolerances and do not impact reflow soldering, component placement, or mechanical clearance.

Q: What is the moisture sensitivity level, and does it affect storage or handling?

A: Both parts carry MSL 4 (72 Hours), indicating moderate moisture sensitivity. Components must be stored in controlled humidity environments and used within 72 hours of exposure to ambient conditions above 30°C and 85% relative humidity. Standard moisture barrier packaging and desiccant storage are recommended.

Q: Is the 4000mcd brightness rating sufficient for my application?

A: The 4000mcd rating with a 140° viewing angle provides standard indication-level brightness. Applications requiring higher brightness should specify alternative parts with higher millicandela ratings. The 4500K warm white color temperature is suitable for general indication and status display applications.