WP1503ID Equivalent & Substitute Parts

Part Overview

The WP1503ID is a red diffused T-1 3/4 through-hole LED manufactured by Kingbright, designed for indication applications. This component features a 5mm diameter lens with domed top, 40mcd brightness rating, and operates at 2V forward voltage with 20mA test current. The part is Active in product status and fully compliant with RoHS3 and REACH regulations.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main component specifications, enabling direct replacement in circuit designs without functional degradation.

Key Parameters

Parameter	Value
Manufacturer Part Number	WP1503ID
Manufacturer	Kingbright
Color	Red
Lens Transparency	Diffused
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) (Typ)	2V
Current - Test	20mA
Millicandela Rating	40mcd
Viewing Angle	60°
Mounting Type	Through Hole
Wavelength - Dominant	617nm
Package / Case	Radial
Supplier Device Package	T-1 3/4
Height (Max)	8.60mm
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts are classified based on alignment with critical electrical and mechanical parameters of the WP1503ID. The primary substitution criteria include:

Electrical Parameters:

Forward voltage (Vf): 2V nominal operation
Test current: 20mA
Wavelength dominant: 617nm red spectrum

Mechanical Parameters:

Lens size: 5mm, T-1 3/4 form factor
Mounting type: Through hole radial configuration
Lens transparency: Diffused
Lens color: Red

Compliance Parameters:

RoHS3 compliance
REACH unaffected status
Active product status

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents: Parts matching forward voltage (2V), test current (20mA), and wavelength specifications within the red spectrum range.

Category B - Functional Equivalents with Parameter Variance: Parts with compatible mechanical form factors and mounting but differing in brightness rating (millicandela), viewing angle, or test current specifications. These parts maintain through-hole radial configuration and diffused red lens characteristics but operate at different electrical parameters.

Parameter Comparison

Part Number	Manufacturer	Color	Lens Transparency	Lens Size	Vf (Typ)	Current - Test	mcd Rating	Viewing Angle	Wavelength - Dominant	Mounting Type	Height (Max)	RoHS Status
WP1503ID	Kingbright	Red	Diffused	5mm, T-1 3/4	2V	20mA	40mcd	60°	617nm	Through Hole	8.60mm	ROHS3
WP7113ID	Kingbright	Red	Diffused	5mm, T-1 3/4	2V	20mA	40mcd	30°	617nm	Through Hole	8.60mm	ROHS3
5219240F	Dialight	Red	Diffused	5.00mm Dia	—	10mA	6.3mcd	—	—	Through Hole	8.94mm	ROHS3
5219672F	Dialight	Red	Diffused	4.75mm Dia	2V	20mA	60mcd	60°	623nm	Through Hole	8.21mm	ROHS3
HLMP-3301	Broadcom Limited	Red	Diffused	5mm, T-1 3/4	1.9V	10mA	5.4mcd	60°	626nm	Through Hole	9.19mm	ROHS3
HLMP-3301-D0000	Broadcom Limited	Red	Diffused	5mm, T-1 3/4	1.9V	10mA	2.1mcd	60°	626nm	Through Hole	9.19mm	ROHS3
HLMP-3301-D0002	Broadcom Limited	Red	Diffused	5mm, T-1 3/4	1.9V	10mA	2.1mcd	60°	626nm	Through Hole	9.19mm	ROHS3
HLMP-3301-D00B2	Broadcom Limited	Red	Diffused, Tinted	—	1.9V	10mA	2.1mcd	—	635nm	Through Hole, Right Angle	—	ROHS3
HLMP-3301-F0002	Broadcom Limited	Red	Diffused	5mm, T-1 3/4	1.9V	10mA	5.4mcd	60°	626nm	Through Hole	9.19mm	ROHS3
HLMP-3301-F00B2	Broadcom Limited	Red	Diffused, Tinted	—	1.9V	10mA	5.4mcd	—	635nm	Through Hole, Right Angle	—	ROHS3
HLMP-3301-F00DD	Broadcom Limited	Red	Diffused	5mm, T-1 3/4	1.9V	10mA	5.4mcd	60°	626nm	Through Hole	9.19mm	ROHS3

Engineering Selection Recommendations

WP7113ID (Kingbright): This part maintains identical electrical specifications (2V, 20mA, 40mcd) and mechanical form factor as the WP1503ID. The primary difference is viewing angle (30° versus 60°), which narrows the light distribution pattern. This part is suitable for applications requiring focused indication with reduced angular visibility. Product status is Active with full RoHS3 compliance.

5219672F (Dialight 521 Series): This part operates at equivalent forward voltage (2V) and test current (20mA) with matching 60° viewing angle. The brightness rating is higher at 60mcd compared to 40mcd. Wavelength dominant is 623nm, within the red spectrum range. Mechanical form factor is 4.75mm diameter, slightly smaller than the 5mm T-1 3/4 standard. Product status is Active with RoHS3 compliance. This part is suitable when higher brightness output is required within compatible mechanical constraints.

HLMP-3301 Series (Broadcom Limited): Parts in this series (HLMP-3301, HLMP-3301-F0002, HLMP-3301-F00DD) operate at 1.9V forward voltage with 10mA test current, representing lower power consumption compared to the WP1503ID. Brightness ratings range from 2.1mcd to 5.4mcd, significantly lower than the 40mcd specification. These parts maintain 5mm T-1 3/4 form factor and 60° viewing angle. Wavelength dominant is 626nm, within acceptable red spectrum range. All variants are Active product status with RoHS3 compliance. These parts are suitable for low-power indication applications where reduced brightness is acceptable.

HLMP-3301-D0000 and HLMP-3301-D0002: These variants operate at 1.9V with 10mA test current and 2.1mcd brightness. Available in Bulk and Cut Tape packaging respectively. Both maintain T-1 3/4 form factor and 60° viewing angle. Suitable for low-power applications with reduced brightness requirements.

HLMP-3301-D00B2 and HLMP-3301-F00B2: These variants feature right-angle mounting configuration instead of radial, with diffused tinted lens. Forward voltage is 1.9V and test current is 10mA. These parts are not suitable for direct replacement in radial through-hole applications due to mounting orientation difference.

5219240F (Dialight 521 Series): This part operates at 10mA test current with significantly reduced brightness of 6.3mcd. Mechanical form factor is 5.00mm diameter. Forward voltage and wavelength specifications are not provided. This part is suitable only for low-brightness indication applications and requires verification of electrical compatibility.

All substitute parts listed maintain RoHS3 compliance and REACH unaffected status, consistent with the WP1503ID regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can WP7113ID replace WP1503ID in all applications?

A: WP7113ID is electrically and mechanically equivalent to WP1503ID with one exception: viewing angle is 30° instead of 60°. This narrower viewing angle reduces the angular range of light visibility. Substitution is valid only in applications where the narrower viewing angle does not compromise visibility requirements.

Q: What is the primary difference between WP1503ID and the HLMP-3301 series?

A: The HLMP-3301 series operates at lower power (1.9V, 10mA) compared to WP1503ID (2V, 20mA), resulting in significantly reduced brightness output (2.1mcd to 5.4mcd versus 40mcd). These parts are suitable for low-power indication circuits where reduced brightness is acceptable. Circuit design modifications may be required to accommodate the lower forward voltage.

Q: Is 5219672F a suitable substitute for WP1503ID?

A: 5219672F is functionally compatible with matching forward voltage (2V), test current (20mA), and viewing angle (60°). The lens diameter is 4.75mm instead of 5mm T-1 3/4, and brightness is higher at 60mcd. Mechanical fit in existing PCB through-hole patterns must be verified due to the slightly smaller diameter. Wavelength dominant is 623nm, within acceptable red spectrum range.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Bulk and Cut Tape (CT) packaging. WP1503ID is supplied in Bulk. HLMP-3301-D0002 and HLMP-3301-F0002 are available in Cut Tape packaging. Packaging selection depends on assembly process requirements and order quantity specifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed in this reference maintain RoHS3 compliance and REACH unaffected status, consistent with WP1503ID regulatory requirements.

Q: Can HLMP-3301-D00B2 or HLMP-3301-F00B2 replace WP1503ID?

A: No. These variants feature right-angle mounting configuration instead of radial through-hole orientation. They are not suitable for direct replacement in applications designed for radial component mounting.

Q: What is the brightness difference between WP1503ID and substitute options?

A: WP1503ID provides 40mcd brightness. Substitute options range from 2.1mcd (HLMP-3301-D0000, HLMP-3301-D0002) to 60mcd (5219672F). Selection depends on application visibility requirements. Lower brightness parts reduce power consumption; higher brightness parts provide enhanced visibility.

Q: Are there inventory considerations for substitute selection?

A: Inventory levels vary by part number and packaging. WP1503ID has 2579 pieces in stock. HLMP-3301-F00DD has the highest inventory at 43,381 pieces. Inventory status should be verified at time of procurement to ensure supply continuity.

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