APTR3216PBC/A Equivalent & Substitute Parts

Part Overview

The APTR3216PBC/A is a blue LED indication component manufactured by Kingbright, featuring a 1206 (3216 Metric) surface mount package with bottom entry configuration. This part operates at 3.2V forward voltage with a 470nm dominant wavelength and 60mcd luminous intensity. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

APTR3216PBC/A

KingbrightIn Stock: 895APTR3216PBC/A Datasheet

Current PartRFQ

APTR3216QBC/D

KingbrightIn Stock: 233091APTR3216QBC/D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the APTR3216PBC/A is determined by strict alignment of the following critical parameters:

Mechanical Compatibility:

• Package type: 1206 (3216 Metric)
• Mounting configuration: Surface Mount, Bottom Entry
• Physical dimensions: 3.20mm L x 1.60mm W, 1.05mm maximum height
• Lens geometry: Rectangle with Flat Top, 1.40mm x 1.60mm

Optical Compatibility:

• Color: Blue
• Lens transparency: Clear
• Viewing angle: 120°

Electrical Compatibility:

• Forward voltage range: 3.2V to 3.3V
• Test current: 20mA
• Wavelength range: 460nm to 470nm dominant wavelength

Regulatory Compliance:

• RoHS3 compliance required
• MSL rating: 3 (168 Hours)

The APTR3216QBC/D meets all mechanical, optical, electrical, and regulatory criteria for direct substitution. Variations in millicandela rating (60mcd to 100mcd) and forward voltage (3.2V to 3.3V) remain within acceptable tolerance for indication applications using standard current-limiting resistor networks.

Parameter Comparison

Engineering Selection Recommendations

The APTR3216QBC/D is the qualified substitute for the obsolete APTR3216PBC/A. Selection is based on the following engineering criteria:

Product Status: The APTR3216QBC/D maintains active production status with Kingbright, ensuring long-term availability and supply chain continuity compared to the obsolete APTR3216PBC/A.

Mechanical Compatibility: Both parts share identical package specifications (1206 / 3216 Metric), mounting configuration (Surface Mount, Bottom Entry), and physical dimensions (3.20mm L x 1.60mm W, 1.05mm height). Direct PCB footprint compatibility is confirmed.

Optical Characteristics: Both parts feature identical lens geometry (Rectangle with Flat Top, 1.40mm x 1.60mm), lens transparency (Clear), and viewing angle (120°). The wavelength shift from 470nm to 465nm remains within the blue spectrum range for indication applications.

Electrical Parameters: Forward voltage increases from 3.2V to 3.3V (0.1V differential). Test current remains constant at 20mA. Luminous intensity increases from 60mcd to 100mcd. These variations require circuit-level verification through resistor network recalculation but do not preclude substitution in standard indication circuits.

Regulatory Compliance: Both parts maintain ROHS3 compliance, identical MSL rating (3, 168 Hours), and REACH Unaffected status. No additional compliance documentation is required for substitution.

Inventory Availability: The APTR3216QBC/D demonstrates significantly higher inventory availability (232,996 pcs) compared to the APTR3216PBC/A (867 pcs), supporting production scaling and long-term sourcing requirements.

Frequently Asked Questions (FAQ)

Q: Can the APTR3216QBC/D be used as a direct drop-in replacement for the APTR3216PBC/A?

A: Yes, for PCB layout and mechanical assembly. The identical package type (1206 / 3216 Metric), mounting configuration (Surface Mount, Bottom Entry), and physical dimensions ensure mechanical compatibility. Circuit-level verification is required due to the 0.1V forward voltage increase and 40mcd luminous intensity increase.

Q: What is the impact of the forward voltage difference (3.2V vs 3.3V)?

A: The 0.1V increase requires recalculation of current-limiting resistor values in the LED drive circuit. For a fixed supply voltage, the resistor value must be adjusted to maintain the desired LED current. This is a standard design modification and does not prevent substitution.

Q: Does the increased millicandela rating (60mcd to 100mcd) affect circuit design?

A: The higher luminous intensity may require adjustment of the LED drive current to maintain consistent brightness in the application. This is controlled through the current-limiting resistor and does not affect mechanical or electrical compatibility.

Q: Are the packaging formats (Cut Tape vs Tape & Reel) interchangeable?

A: Both packaging formats contain identical components. The difference is in supply format only. Cut Tape (CT) & Digi-Reel® is suitable for manual assembly or small-volume production. Tape & Reel (TR) is optimized for automated pick-and-place assembly. Selection depends on production methodology, not component compatibility.

Q: What is the significance of the wavelength shift from 470nm to 465nm?

A: Both wavelengths fall within the blue spectrum range for indication applications. The 5nm shift is imperceptible to human vision in standard indication circuits. No optical performance degradation occurs for typical indication use cases.

Q: Are there any compliance concerns with substitution?

A: No. Both parts maintain identical RoHS3 compliance, MSL rating (3, 168 Hours), and REACH Unaffected status. No additional compliance documentation or testing is required for substitution.

Q: What is the inventory status difference between the two parts?

A: The APTR3216PBC/A has 867 pcs in stock (obsolete status). The APTR3216QBC/D has 232,996 pcs in stock (active status). The substitute provides significantly higher availability for production continuity.