WP63ID Red Diffused T-1 3/4 LED Equivalent & Substitute Parts

Part Overview

The WP63ID is a red diffused through-hole LED manufactured by Kingbright, classified as a T-1 3/4 (5mm) radial package indicator light. This component operates at 2V forward voltage with a 12mcd brightness rating and 617nm dominant wavelength, designed for discrete LED indication applications. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the WP63ID reaches end-of-life inventory depletion, supply chain disruptions, or when design requirements permit alternative electrical or mechanical parameters within acceptable tolerance ranges. The following equivalent components maintain compatibility based on shared package geometry, mounting type, and core functional parameters.

Key Parameters

Parameter	WP63ID Value	Substitution Relevance
Lens Size / Package	5mm T-1 3/4 Radial	Critical - Physical fit and mounting compatibility
Mounting Type	Through Hole	Critical - PCB assembly method
Lens Transparency	Diffused	Critical - Light distribution and appearance
Color	Red	Critical - Wavelength and visual indication
Voltage - Forward (Vf)	2V Typical	Important - Circuit design and current limiting
Current - Test	20mA	Important - Power supply and resistor sizing
Millicandela Rating	12mcd	Important - Brightness and visibility requirements
Viewing Angle	60°	Important - Optical performance and application fit
Wavelength - Dominant	617nm	Important - Color specification and perception

Substitute Part Grouping Explanation

Substitution logic for the WP63ID is based on the following allowed parameters:

Critical Compatibility Parameters:

Package Type: T-1 3/4 (5mm) radial through-hole only
Lens Transparency: Diffused lens required
Color: Red wavelength range (615nm–645nm acceptable)
Mounting: Through-hole configuration mandatory

Electrical Tolerance Parameters:

Forward Voltage (Vf): 1.8V–2.0V range acceptable (circuit design dependent)
Test Current: 10mA–20mA range acceptable (brightness trade-off)
Millicandela Rating: 2.1mcd–70mcd range acceptable (application dependent)
Viewing Angle: 50°–65° range acceptable (visibility dependent)

Compliance Parameters:

RoHS3 compliance required
MSL 1 (Unlimited) required
REACH Unaffected status required

Parts meeting all critical parameters and falling within electrical tolerance ranges are classified as direct substitutes. Parts with deviations in package geometry, mounting type, or lens transparency are listed as reference alternatives only.

Parameter Comparison

Part Number	Manufacturer	Lens Size	Vf (Typ)	Current (mA)	mcd Rating	Viewing Angle	Wavelength - Dominant	Height (Max)	Product Status	Inventory
WP63ID	Kingbright	5mm T-1 3/4	2.0V	20	12	60°	617nm	6.00mm	Active	8,658 Pcs
5219240F	Dialight	5mm T-1 3/4	—	10	6.3	—	—	8.94mm	Active	2,526 Pcs
5219672F	Dialight	4.75mm	2.0V	20	60	60°	623nm	8.21mm	Active	2,314 Pcs
HLMP-3301-F00DD	Broadcom Limited	5mm T-1 3/4	1.9V	10	5.4	60°	626nm	9.19mm	Active	43,381 Pcs
HLMP-3351	Broadcom Limited	5mm T-1 3/4	1.9V	10	5.4	50°	626nm	6.35mm	Active	5,267 Pcs
HLMP-3351-D0000	Broadcom Limited	5mm T-1 3/4	1.9V	10	2.1	50°	626nm	6.35mm	Active	19,677 Pcs
HLMP-3351-D0002	Broadcom Limited	5mm T-1 3/4	1.9V	10	2.1	50°	626nm	6.35mm	Active	10,091 Pcs
HLMP-D101	Broadcom Limited	5mm T-1 3/4	1.8V	20	70	65°	637nm	9.19mm	Active	32,743 Pcs
HLMP-D150	onsemi	—	—	—	—	—	—	—	Obsolete	15,436 Pcs

Engineering Selection Recommendations

Direct Substitutes (Recommended Priority Order):

HLMP-3351-D0000 / HLMP-3351-D0002 – Broadcom Limited T-1 3/4 red diffused LEDs with 1.9V forward voltage, 10mA test current, and 626nm dominant wavelength. Both maintain identical package geometry (6.35mm height) and mounting configuration. Lower brightness (2.1mcd) requires circuit verification for application adequacy. Both parts carry Active status with full RoHS3 compliance. HLMP-3351-D0002 available in Cut Tape packaging; HLMP-3351-D0000 in Bulk. Inventory: 19,677 and 10,091 units respectively.
HLMP-3351 – Broadcom Limited base variant with identical package and 1.9V/10mA specifications. Brightness rated at 5.4mcd with 50° viewing angle. Active status, RoHS3 compliant. Inventory: 5,267 units.
HLMP-3301-F00DD – Broadcom Limited T-1 3/4 configuration with 1.9V forward voltage and 10mA test current. Brightness 5.4mcd, 626nm wavelength, 60° viewing angle matching WP63ID optical performance. Height 9.19mm (3.19mm taller than WP63ID). Active status, RoHS3 compliant. Available in Cut Tape packaging. Inventory: 43,381 units.
HLMP-D101 – Broadcom Limited high-intensity variant with 1.8V forward voltage and 20mA test current matching WP63ID electrical profile. Brightness 70mcd (5.8× brighter) with 637nm wavelength and 65° viewing angle. Height 9.19mm. Active status, RoHS3 compliant. Inventory: 32,743 units. Suitable when increased brightness is acceptable or required.

Alternative Consideration (Geometry Deviation):

5219672F – Dialight 5mm red diffused LED with 2.0V forward voltage and 20mA test current matching WP63ID electrical specifications. Brightness 60mcd with 623nm wavelength and 60° viewing angle. Lens diameter 4.75mm (0.25mm smaller) and height 8.21mm (2.21mm taller). Active status, RoHS3 compliant. Inventory: 2,314 units. Acceptable only if mechanical envelope permits height variation.

Not Recommended:

5219240F – Dialight T-1 3/4 package with insufficient electrical parameter documentation (forward voltage and wavelength unspecified). Lower brightness (6.3mcd) and 10mA test current. Height 8.94mm. Inventory: 2,526 units.
HLMP-3301-F00B2 – Right-angle mounting configuration incompatible with radial through-hole requirement.
HLMP-3600-D00B2 – Right-angle mounting configuration and 5V rating incompatible with WP63ID application.
HLMP-D150 – Obsolete product status with incomplete technical specifications.

Frequently Asked Questions (FAQ)

Q: Can HLMP-3351-D0000 replace WP63ID directly in existing PCB designs?

A: Yes, with circuit verification. Both components share identical T-1 3/4 package geometry and radial through-hole mounting. Forward voltage differs by 0.1V (1.9V vs. 2.0V), requiring resistor recalculation for constant-current circuits. Brightness is significantly lower (2.1mcd vs. 12mcd); verify application visibility requirements before substitution.

Q: What is the primary difference between HLMP-3351, HLMP-3351-D0000, and HLMP-3351-D0002?

A: All three share identical package geometry (5mm T-1 3/4, 6.35mm height) and electrical specifications (1.9V, 10mA). HLMP-3351 and HLMP-3351-D0000 differ only in brightness rating (5.4mcd vs. 2.1mcd). HLMP-3351-D0002 is the Cut Tape packaged variant of HLMP-3351-D0000 with identical electrical and optical performance. Selection depends on brightness requirement and packaging preference (Bulk vs. Cut Tape).

Q: Why is HLMP-D101 listed as a substitute if its brightness is 70mcd versus WP63ID's 12mcd?

A: HLMP-D101 maintains full package and mounting compatibility (T-1 3/4 radial through-hole) with acceptable electrical parameters (1.8V forward voltage, 20mA test current). Higher brightness (70mcd) is a design advantage in applications requiring increased visibility. Substitution is valid when brightness increase does not compromise circuit design or application aesthetics. Verify that increased light output does not cause glare or unintended visual effects.

Q: Can 5219672F be used as a substitute despite its 4.75mm lens diameter?

A: 5219672F is mechanically compatible only if the PCB design accommodates 0.25mm lens diameter reduction and 2.21mm height increase (8.21mm vs. 6.00mm). Electrical specifications match WP63ID (2.0V, 20mA, 60° viewing angle). Verify mechanical clearance in the application enclosure before substitution. This part is classified as an alternative rather than a direct substitute due to dimensional deviation.

Q: Is HLMP-3301-F00DD suitable for high-temperature applications?

A: HLMP-3301-F00DD carries MSL 1 (Unlimited) moisture sensitivity rating, identical to WP63ID. No temperature rating data is provided in the technical specifications. Consult Broadcom Limited datasheets for thermal performance specifications before selecting for temperature-critical applications.

Q: What packaging options are available for substitute parts?

A: HLMP-3351-D0002 is supplied in Cut Tape (CT) packaging with 10,091 units in stock. HLMP-3301-F00DD is also available in Cut Tape with 43,381 units. HLMP-3351-D0000, HLMP-3351, HLMP-D101, and 5219672F are supplied in Bulk packaging. WP63ID original part is Bulk packaged. Select packaging based on assembly process requirements and inventory management.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts (HLMP-3351 series, HLMP-3301-F00DD, HLMP-D101, and 5219672F) carry RoHS3 compliance certification. HLMP-D150 is obsolete and not recommended. All parts maintain REACH Unaffected status and EAR99 export classification matching WP63ID.

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