HLMP3316 LED Red Diffused T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The HLMP3316 is a red diffused LED indicator in T-1 3/4 (5mm) through-hole package manufactured by onsemi. This component is designed for red LED indication applications with a forward voltage of 2.2V and 35mcd brightness rating. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Suitable alternatives are available from active manufacturers including Visual Communications Company (VCC) and Broadcom Limited, offering comparable optical and mechanical characteristics with modern product status and compliance certifications.

Substiute Parts

HLMP3316

onsemiIn Stock: 1069HLMP3316 Datasheet

Current PartRFQ

4302H1-12V

Visual Communications Company - VCCIn Stock: 20274302H1-12V Datasheet

SimilarRFQ

4302H1-5V

Visual Communications Company - VCCIn Stock: 27094302H1-5V Datasheet

SimilarRFQ

HLMP-3316

Broadcom LimitedIn Stock: 5406HLMP-3316 Datasheet

SimilarRFQ

HLMP3316

onsemiIn Stock: 1069HLMP3316 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HLMP3316 is determined by the following critical parameters:

• Physical Form Factor: T-1 3/4 (5mm) through-hole radial package with round domed lens
• Optical Characteristics: Red color, diffused lens transparency, 635nm peak wavelength
• Electrical Specifications: Forward voltage range (1.9V to 12V depending on application), test current (10mA to 13mA), brightness rating (8mcd to 60mcd)
• Mechanical Compatibility: Height and mounting footprint suitable for PCB through-hole assembly

Substitute parts are grouped into two categories:

1. Similar Manufacturer Parts (4302H1-5V, 4302H1-12V, HLMP-3316): These maintain the same physical package, optical color, and lens style while offering different forward voltage ratings and brightness levels. These are direct mechanical and functional alternatives.

2. Parametric Equivalent (HLMP3316): This is an exact parametric match from the same manufacturer, representing an alternative stock source or packaging variant.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Mechanical and Optical Compatibility)

The HLMP-3316 from Broadcom Limited is the preferred substitute. It maintains identical physical dimensions (T-1 3/4 package), optical wavelength (635nm peak), and test current (10mA). The forward voltage is 1.9V versus 2.2V on the original, representing a 0.3V reduction that is within typical LED tolerance ranges. This part is currently active with ROHS3 compliance certification, ensuring long-term availability and regulatory compliance.

For Voltage-Specific Applications

The VCC 4302H1-5V and 4302H1-12V are suitable when circuit design requires specific forward voltage ratings. The 4302H1-5V operates at 5V forward voltage with 10mA test current, matching the original test current specification. The 4302H1-12V operates at 12V with 13mA test current. Both maintain the T-1 3/4 form factor and diffused red lens. These parts are active with ROHS3 compliance and higher inventory availability (2640 and 1927 units respectively).

Compliance and Availability Considerations

All substitute parts carry ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements. The original HLMP3316 is obsolete; therefore, any new production or maintenance application should transition to an active substitute. Broadcom's HLMP-3316 offers the closest parametric match with active product status. VCC alternatives provide voltage-specific options for applications requiring different forward voltage characteristics.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-3316 from Broadcom directly replace the obsolete HLMP3316 from onsemi?

A: Yes. Both parts share identical T-1 3/4 through-hole package geometry, red diffused lens, 635nm peak wavelength, and 10mA test current. The forward voltage differs by 0.3V (1.9V versus 2.2V), which is within standard LED operating tolerance. Circuit designs using current-limiting resistors will accommodate this variation without modification.

Q: What is the difference between the VCC 4302H1-5V and 4302H1-12V?

A: Both parts are mechanically identical T-1 3/4 red diffused LEDs with 635nm wavelength. The primary difference is forward voltage: 4302H1-5V operates at 5V with 10mA test current, while 4302H1-12V operates at 12V with 13mA test current. Selection depends on the circuit's supply voltage and current-limiting design. Both have identical 8mcd brightness and 60° viewing angle.

Q: Why does the HLMP-3316 from Broadcom have higher brightness (60mcd) than the original HLMP3316 (35mcd)?

A: Brightness rating differences reflect manufacturing improvements and LED technology evolution. The Broadcom part delivers higher luminous intensity at the same test current (10mA), making it suitable for applications requiring greater visibility. For designs sensitive to brightness levels, verify that the higher output does not cause optical saturation or exceed design specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The Broadcom HLMP-3316 and both VCC parts (4302H1-5V and 4302H1-12V) carry ROHS3 compliance certification. The original onsemi HLMP3316 does not specify RoHS status. All substitute parts are REACH Unaffected and carry EAR99 ECCN classification.

Q: What is the viewing angle difference between the original and substitutes?

A: The original HLMP3316 and Broadcom HLMP-3316 both specify 35° viewing angle. The VCC parts (4302H1-5V and 4302H1-12V) specify 60° viewing angle, providing wider light distribution. For applications requiring narrow-beam indication, the 35° options are preferred. For applications requiring broader visibility, the 60° options are suitable.

Q: Does the height difference (8.89mm original versus 10.08mm VCC parts) affect PCB assembly?

A: The height difference of approximately 1.2mm between the original and VCC substitutes may affect clearance in space-constrained designs. The Broadcom HLMP-3316 at 9.19mm height provides a closer match to the original. Verify PCB layout clearances and component spacing before selecting a substitute with different height specifications.