HLMP4700L Equivalent & Substitute Parts

Part Overview

The HLMP4700L is a red diffused LED indicator in T-1 3/4 through-hole package manufactured by onsemi. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The HLMP4700L operates at 1.8V forward voltage with 2mA test current and delivers 2 millicandela brightness with a 35° viewing angle. Substitution requires matching the core electrical characteristics, mechanical form factor, and optical properties while considering manufacturer availability and product status.

Key Parameters

Parameter	HLMP4700L Value
Color	Red
Lens Transparency	Diffused
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) (Typ)	1.8V
Current - Test	2mA
Millicandela Rating	2mcd
Viewing Angle	35°
Mounting Type	Through Hole
Wavelength - Peak	635nm
Package / Case	Radial
Supplier Device Package	T-1 3/4
Height (Max)	8.89mm
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HLMP4700L is determined by the following criteria:

Electrical Compatibility: Forward voltage (Vf) must remain within acceptable operating range (1.7V to 2.2V). Test current tolerance allows 2mA to 20mA. Peak wavelength must remain in the red spectrum (635nm).

Mechanical Compatibility: Lens size must be 5mm T-1 3/4 form factor. Mounting type must be through-hole radial configuration. Height variation is acceptable within standard PCB assembly tolerances.

Optical Properties: Color must be red. Lens transparency (diffused or clear) affects appearance but does not prevent substitution. Millicandela rating may vary based on application requirements.

Product Status Consideration: Active status parts are preferred for long-term availability. Obsolete parts serve as direct parametric equivalents but may have limited stock.

Substitute parts are grouped into two categories: direct substitutes (identical or near-identical specifications) and parametric equivalents (matching core electrical and mechanical parameters with minor variations in brightness or viewing angle).

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	mcd	Viewing Angle	Lens Transparency	Height (Max)	Product Status	RoHS Status
HLMP4700L	onsemi	1.8V	2mA	2	35°	Diffused	8.89mm	Obsolete	Not Specified
5219464F	Dialight	2.2V	20mA	125	24°	Clear	8.81mm	Active	ROHS3 Compliant
HLMP-3762	Broadcom Limited	1.9V	10mA	8.6	60°	Diffused	9.19mm	Active	ROHS3 Compliant
HLMP-4700	Broadcom Limited	1.7V	2mA	2.3	50°	Diffused	9.19mm	Active	ROHS3 Compliant
HLMP-EG55-GK0DD	Broadcom Limited	1.9V	20mA	270	55°	Diffused	8.91mm	Active	ROHS3 Compliant
HLMP-EG55-JK0DU	Broadcom Limited	1.9V	20mA	320	55°	Diffused	8.91mm	Active	ROHS3 Compliant
HLMP-WG02	Broadcom Limited	1.9V	20mA	26	65°	Diffused	8.91mm	Active	ROHS3 Compliant
HLMP4700	onsemi	1.8V	2mA	2	35°	Diffused	6.30mm	Obsolete	Not Specified
HLMP4700A1A0	Everlight Electronics Co Ltd	1.8V	2mA	2	35°	Diffused	8.89mm	Active	ROHS3 Compliant
HLMP4700A3R0	Everlight Electronics Co Ltd	1.8V	2mA	2	35°	Diffused	8.89mm	Active	ROHS3 Compliant
HLMP4700A4R0	Everlight Electronics Co Ltd	1.8V	2mA	2	35°	Diffused	8.89mm	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

HLMP4700A1A0, HLMP4700A3R0, and HLMP4700A4R0 from Everlight Electronics are direct parametric equivalents with identical electrical specifications (1.8V, 2mA, 2mcd, 35° viewing angle) and matching mechanical form factor. All three are ROHS3 compliant and carry active product status, ensuring long-term availability and supply chain stability.

HLMP-4700 from Broadcom Limited matches the core electrical parameters (1.8V, 2mA, 2.3mcd) with minimal brightness variation and is ROHS3 compliant with active status. Height specification differs slightly (9.19mm vs. 8.89mm) but remains within standard PCB assembly tolerances.

Secondary Substitutes (Conditional Use):

HLMP-WG02 from Broadcom Limited operates at 1.9V with 20mA test current and 26mcd brightness. This part requires circuit redesign to accommodate higher current draw but maintains diffused lens transparency and T-1 3/4 form factor. ROHS3 compliant and active status.

HLMP-3762 from Broadcom Limited operates at 1.9V with 10mA test current and 8.6mcd brightness. Wider viewing angle (60°) and active ROHS3 status support applications requiring broader light distribution.

HLMP-EG55-GK0DD and HLMP-EG55-JK0DU from Broadcom Limited operate at 1.9V with 20mA test current and deliver significantly higher brightness (270mcd and 320mcd respectively). These parts require circuit redesign but offer enhanced visibility for high-brightness indicator applications. Both are ROHS3 compliant and active.

Alternative with Different Characteristics:

5219464F from Dialight operates at 2.2V with 20mA test current and clear lens transparency. This part requires circuit redesign and produces 125mcd brightness with narrower viewing angle (24°). ROHS3 compliant and active status.

Obsolete Equivalents (Not Recommended for New Designs):

HLMP4700 from onsemi is a direct parametric equivalent but carries obsolete status. Use only for legacy system maintenance where supply is confirmed.

Frequently Asked Questions (FAQ)

Q: Can HLMP4700A1A0, HLMP4700A3R0, and HLMP4700A4R0 be used as direct drop-in replacements?

A: Yes. These Everlight parts match all critical parameters of the HLMP4700L: 1.8V forward voltage, 2mA test current, 2mcd brightness, 35° viewing angle, and T-1 3/4 through-hole package. No circuit modification is required.

Q: What is the difference between HLMP-4700 from Broadcom and HLMP4700L from onsemi?

A: Both operate at 1.8V with 2mA test current and 2mcd brightness. The Broadcom version has slightly higher height (9.19mm vs. 8.89mm) and is ROHS3 compliant with active status, whereas the onsemi version is obsolete. The Broadcom part is suitable for new designs.

Q: Can I use HLMP-EG55-JK0DU as a substitute?

A: HLMP-EG55-JK0DU is electrically compatible (1.9V forward voltage within tolerance) but requires circuit redesign. Test current increases from 2mA to 20mA, and brightness increases to 320mcd. Use only if the application requires higher brightness and the circuit can accommodate 20mA current draw.

Q: What does ROHS3 compliance mean for substitution?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements. All active substitute parts listed are ROHS3 compliant, ensuring regulatory compliance for new designs and production.

Q: Why does 5219464F have a clear lens instead of diffused?

A: 5219464F from Dialight uses clear lens transparency, which produces a brighter, more focused light beam compared to the diffused lens of HLMP4700L. This affects visual appearance and light distribution. Select based on application requirements for light diffusion.

Q: Can I use parts with different viewing angles?

A: Yes, if the application permits. HLMP-WG02 offers 65° viewing angle versus 35° for HLMP4700L, providing wider light distribution. HLMP-EG55 series offers 55° viewing angle. Verify that the wider or narrower viewing angle meets your optical design requirements.

Q: What is the significance of MSL (Moisture Sensitivity Level)?

A: HLMP4700L has MSL 1 (Unlimited), meaning it requires no special moisture protection during storage and handling. HLMP-WG02 has MSL 2A (4 Weeks), requiring controlled storage conditions. For most applications, this difference is not critical, but verify storage procedures if using HLMP-WG02.

Q: Are there inventory considerations for substitution?

A: Yes. HLMP-4700 from Broadcom has 38,300 pieces in stock, providing the largest available inventory among active substitutes. Everlight variants (HLMP4700A1A0, HLMP4700A3R0, HLMP4700A4R0) have 900-1,100 pieces each. Dialight 5219464F has 3,435 pieces. Verify current inventory with your supplier before design finalization.

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