SMP4-SBC-RB Equivalent & Substitute Parts

Part Overview

The SMP4-SBC-RB is a dual-color surface mount LED indicator manufactured by Bivar Inc., featuring independent blue and red light-emitting elements in a 4-PLCC package. This component provides simultaneous blue (470nm, 285mcd) and red (631nm, 180mcd) indication capability with a clear, colorless lens and 120° viewing angle. The SMP4-SBC-RB is classified as obsolete. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

SMP4-SBC-RB

Bivar Inc.In Stock: 813SMP4-SBC-RB Datasheet

Current PartRFQ

SMTL4-SBC-RB

Bivar Inc.In Stock: 2403SMTL4-SBC-RB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SMP4-SBC-RB is based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitute part SMTL4-SBC-RB maintains identical performance characteristics in the following key parameters:

Electrical Equivalence:

• Dual-color LED configuration (Blue 470nm, Red 631nm)
• Independent LED operation
• Forward voltage specifications (3.2V Blue, 1.9V Red)
• Test current ratings (20mA Blue, 20mA Red)
• Luminous intensity (285mcd Blue, 180mcd Red)
• Viewing angle (120°)

Mechanical Equivalence:

• 4-PLCC surface mount package
• Identical lens specifications (Round with Flat Top, 2.40mm diameter, Clear colorless)
• Matching footprint dimensions (3.20mm L x 2.80mm W)
• Comparable height profile (1.95mm original vs. 2.05mm substitute)

Regulatory Equivalence:

• Identical ECCN classification (EAR99)
• Identical HTSUS code (8541.41.0000)
• Identical MSL rating (4, 72 Hours)

The substitute part differs only in packaging format (Tape & Reel vs. bulk) and product status (Active vs. Obsolete), with no impact on functional or electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The SMTL4-SBC-RB is the direct parametric equivalent for the obsolete SMP4-SBC-RB. Selection of the substitute part is based on the following engineering criteria:

Product Status: The SMP4-SBC-RB is classified as obsolete, while the SMTL4-SBC-RB maintains active product status with Bivar Inc., ensuring continued availability and manufacturing support.

Electrical Performance: All electrical specifications are identical, including forward voltage, test current, wavelength, and luminous intensity for both blue and red LED elements. The substitute part delivers equivalent optical and electrical performance in circuit applications.

Mechanical Compatibility: The 4-PLCC surface mount package, footprint dimensions (3.20mm L x 2.80mm W), and lens specifications are identical. The height differential (1.95mm vs. 2.05mm) represents a 0.10mm increase and does not impact PCB assembly clearance or component placement in standard surface mount applications.

Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The SMTL4-SBC-RB carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for new production.

Packaging Consideration: The substitute part is supplied in Tape & Reel format, which is standard for high-volume production environments. Bulk packaging of the original part is no longer available due to obsolescence.

Frequently Asked Questions (FAQ)

Q: Can the SMTL4-SBC-RB be used as a direct replacement for the SMP4-SBC-RB in existing designs?

A: Yes. The SMTL4-SBC-RB is a parametric equivalent with identical electrical performance, forward voltage specifications, luminous intensity, wavelength, and 4-PLCC package footprint. No circuit modifications are required.

Q: What is the significance of the 0.10mm height difference between the two parts?

A: The height difference (1.95mm vs. 2.05mm) is within standard manufacturing tolerances for surface mount LEDs and does not affect PCB assembly clearance, component placement, or reflow soldering processes.

Q: Why is the original SMP4-SBC-RB classified as obsolete?

A: The SMP4-SBC-RB has been discontinued by Bivar Inc. The SMTL4-SBC-RB is the active production equivalent and is the recommended part for new designs and production orders.

Q: Are there any differences in the optical characteristics between the two parts?

A: No. Both parts feature identical lens specifications (Round with Flat Top, 2.40mm diameter, Clear colorless), viewing angle (120°), and luminous intensity ratings (285mcd Blue, 180mcd Red).

Q: What is the difference between bulk and Tape & Reel packaging?

A: The SMP4-SBC-RB was supplied in bulk packaging, while the SMTL4-SBC-RB is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated surface mount assembly and provides improved component handling and placement accuracy in production environments.

Q: Are both parts subject to the same moisture sensitivity requirements?

A: Yes. Both parts carry an MSL rating of 4 (72 Hours), requiring identical moisture control and storage procedures during handling and assembly.

Q: Does the SMTL4-SBC-RB meet current regulatory standards?

A: Yes. The SMTL4-SBC-RB is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in production applications.

Q: Can the SMTL4-SBC-RB be used in applications requiring the exact same forward voltage specifications?

A: Yes. The forward voltage specifications are identical: 3.2V for the blue LED and 1.9V for the red LED. Test current ratings are also identical at 20mA for both colors.