HLMP6305A Red LED Subminiature Axial Equivalent & Substitute Parts

Part Overview

The HLMP6305A is a red LED indication component manufactured by onsemi, featuring a subminiature T-3/4 axial configuration with flat leads. This through-hole axial LED is designed for discrete red light indication applications with a forward voltage of 1.8V and 12mcd brightness rating. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and new production requirements where similar electrical and mechanical characteristics are required.

Key Parameters

Parameter	Value
Manufacturer Part Number	HLMP6305A
Manufacturer	onsemi
Product Status	Obsolete
Color	Red
Lens Transparency	Clear
Millicandela Rating	12mcd
Voltage - Forward (Vf) Typical	1.8V
Current - Test	10mA
Viewing Angle	25°
Mounting Type	Through Hole, Axial
Wavelength - Peak	635nm
Lens Size	1.75mm Dia
Package / Case	Axial, Flat Leads
Height (Max)	2.92mm
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the HLMP6305A is determined by the following critical parameters:

Electrical Compatibility: Forward voltage (Vf) within 1.7V to 2.0V range, wavelength peak between 626nm and 660nm, and millicandela rating of 12mcd or higher.

Mechanical Compatibility: Lens size approximately 1.75mm to 1.91mm diameter, height maximum 2.92mm, and viewing angle between 15° and 35°.

Mounting Consideration: The original part uses through-hole axial mounting. Surface mount alternatives (SMD with gull wing or Z-bend leads) are functionally equivalent but require PCB design changes. Axial through-hole alternatives maintain direct form-factor compatibility.

Compliance & Status: Active product status is preferred for long-term availability. RoHS3 compliance and REACH unaffected status ensure regulatory alignment.

Substitute parts are grouped into two categories: direct axial through-hole replacements (HLMP-6305 series from Broadcom) and surface mount alternatives (CMD95-21 series from VCC, HLMP-Q series from Broadcom) that provide equivalent electrical performance with different mounting requirements.

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	mcd Rating	Wavelength Peak	Mounting Type	Package / Case	Viewing Angle	Product Status	RoHS Status
HLMP6305A	onsemi	1.8V	12mcd	635nm	Through Hole, Axial	Axial, Flat Leads	25°	Obsolete	Not Specified
HLMP-6305	Broadcom Limited	1.8V	40mcd	635nm	Through Hole, Axial	Axial, Flat Leads	28°	Active	ROHS3 Compliant
HLMP-6305-L0011	Broadcom Limited	1.8V	40mcd	635nm	Surface Mount	2-SMD, Gull Wing	28°	Active	ROHS3 Compliant
HLMP-6305-L0021	Broadcom Limited	1.8V	40mcd	635nm	Surface Mount	2-SMD, Yoke Bend	28°	Active	ROHS3 Compliant
HLMP-6305-L0031	Broadcom Limited	1.8V	40mcd	635nm	Surface Mount	2-SMD, Z-Bend	28°	Active	ROHS3 Compliant
HLMP-Q102-N0011	Broadcom Limited	1.9V	100mcd	654nm	Surface Mount	2-SMD, Gull Wing	35°	Active	ROHS3 Compliant
HLMP-Q105-P0011	Broadcom Limited	1.8V	200mcd	645nm	Surface Mount	2-SMD, Gull Wing	28°	Active	ROHS3 Compliant
HLMP-Q105-P0031	Broadcom Limited	1.8V	200mcd	645nm	Surface Mount, Bottom Entry	2-SMD, Z-Bend	28°	Active	ROHS3 Compliant
HLMP-Q106-R0011	Broadcom Limited	1.9V	400mcd	654nm	Surface Mount	2-SMD, Gull Wing	15°	Active	ROHS3 Compliant
CMD95-21SRC/TR7	Visual Communications Company - VCC	1.7V	100mcd	660nm	Surface Mount	2-SMD, Gull Wing	25°	Active	ROHS3 Compliant
CMD95-21VRC/TR7	Visual Communications Company - VCC	2.0V	25mcd	640nm	Surface Mount	2-SMD, Gull Wing	25°	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Through-Hole Axial Replacement:

HLMP-6305 (Broadcom Limited) is the primary equivalent. It maintains identical forward voltage (1.8V), wavelength peak (635nm), and axial through-hole mounting configuration. The 40mcd brightness rating exceeds the original 12mcd specification, providing enhanced visibility. Product status is active with ROHS3 compliance, ensuring long-term availability and regulatory compliance.

For Surface Mount Applications:

HLMP-6305-L0011, HLMP-6305-L0021, and HLMP-6305-L0031 provide electrical equivalence (1.8V, 635nm, 40mcd) in SMD configurations with gull wing, yoke bend, and Z-bend lead styles respectively. These require PCB redesign but maintain the same electrical performance and active product status with ROHS3 compliance.

HLMP-Q105-P0011 and HLMP-Q105-P0031 offer higher brightness (200mcd) at identical forward voltage (1.8V) and similar wavelength (645nm), suitable for applications requiring increased luminous intensity.

HLMP-Q102-N0011 and HLMP-Q106-R0011 provide higher brightness options (100mcd and 400mcd respectively) with slightly elevated forward voltage (1.9V) and different wavelength characteristics (654nm). These are suitable where increased brightness and wider or narrower viewing angles are acceptable.

For Alternative Manufacturer Options:

CMD95-21SRC/TR7 (VCC) offers 100mcd brightness at 1.7V forward voltage with 660nm wavelength peak, providing a lower voltage alternative with active product status and ROHS3 compliance.

CMD95-21VRC/TR7 (VCC) provides 25mcd brightness at 2.0V forward voltage with 640nm wavelength, suitable for applications with higher voltage tolerance and moderate brightness requirements.

All substitute parts maintain REACH unaffected status and are available in active production, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can HLMP-6305A be directly replaced with HLMP-6305?

A: Yes. HLMP-6305 is a direct through-hole axial replacement with identical forward voltage (1.8V), wavelength peak (635nm), and mounting configuration. The increased brightness (40mcd vs. 12mcd) is compatible with existing circuit designs. HLMP-6305 is active production with ROHS3 compliance.

Q: What is the difference between axial and SMD substitute options?

A: Axial parts (HLMP-6305 series) mount through PCB holes with leads on opposite ends, maintaining the original form factor. SMD parts (HLMP-6305-L series, HLMP-Q series, CMD95-21 series) mount on PCB surfaces with leads on the same side, requiring PCB redesign but offering space efficiency. Electrical performance is equivalent within the specified parameter ranges.

Q: Are there brightness differences between substitute parts?

A: Yes. HLMP-6305 and HLMP-6305-L variants provide 40mcd. HLMP-Q105 series provides 200mcd. HLMP-Q106-R0011 provides 400mcd. CMD95-21SRC/TR7 provides 100mcd. CMD95-21VRC/TR7 provides 25mcd. Higher brightness ratings are suitable for applications requiring increased visibility; lower ratings are suitable for reduced power consumption designs.

Q: What forward voltage range is acceptable for substitution?

A: The HLMP6305A operates at 1.8V typical. Acceptable substitutes range from 1.7V to 2.0V forward voltage. CMD95-21SRC/TR7 at 1.7V and CMD95-21VRC/TR7 at 2.0V represent the voltage boundaries. Verify circuit current-limiting resistor values accommodate the selected part's forward voltage.

Q: Which substitute offers the best long-term availability?

A: All recommended substitutes have active product status. HLMP-6305 (Broadcom) and HLMP-Q series (Broadcom) offer the largest inventory levels and established supply chains. CMD95-21 series (VCC) provides alternative sourcing. All are ROHS3 compliant and REACH unaffected.

Q: Can SMD parts be used in through-hole designs?

A: No. SMD parts require surface mount PCB pads and reflow soldering. Through-hole designs require axial or lead-based components. HLMP-6305 is the appropriate choice for existing through-hole PCB designs.

Q: What is the viewing angle significance in LED selection?

A: Viewing angle determines the cone of light emission. HLMP6305A and most substitutes operate at 25° to 28°, providing directional indication. HLMP-Q106-R0011 at 15° provides narrower, more focused light. HLMP-Q102-N0011 at 35° provides wider light distribution. Select based on application visibility requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All recommended substitutes are ROHS3 compliant. The original HLMP6305A RoHS status is not specified due to obsolescence. All active substitutes meet current environmental regulations.

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