TLHG5201 Equivalent & Substitute Parts

Part Overview

The TLHG5201 is a green diffused T-1 3/4 through-hole LED manufactured by Vishay Semiconductor Opto Division, designed for discrete LED indication applications. This part operates at 2V forward voltage with a 45mcd brightness rating and 569nm dominant wavelength. The product is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and new design implementations where green LED indication functionality is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLHG5201
Manufacturer	Vishay Semiconductor Opto Division
Color	Green
Lens Size	5mm, T-1 3/4
Lens Transparency	Diffused
Voltage - Forward (Vf) (Typ)	2V
Current - Test	10mA
Millicandela Rating	45mcd
Wavelength - Dominant	569nm
Viewing Angle	28°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	12.20mm
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TLHG5201 is determined by the following critical parameters:

Primary Compatibility Criteria:

Color: Green
Lens Size: 5mm, T-1 3/4
Mounting Type: Through Hole
Package / Case: Radial
Wavelength Range: 559nm–570nm (dominant wavelength)

Secondary Compatibility Criteria:

Voltage - Forward (Vf): 1.8V–2.4V (acceptable operating range)
Current - Test: 2mA–20mA (circuit design dependent)
Millicandela Rating: 2.3mcd–300mcd (application brightness requirement dependent)
Viewing Angle: 15°–60° (application field-of-view dependent)

Substitute parts must maintain identical physical form factor (5mm T-1 3/4 through-hole radial package) and green color specification. Forward voltage and brightness variations are acceptable within the ranges specified, provided circuit design accommodates the electrical differences. All substitute parts listed maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Parameter Comparison

Part Number	Manufacturer	Color	Vf (Typ)	Current - Test	mcd Rating	Wavelength - Dominant	Viewing Angle	Lens Transparency	Height (Max)	Product Status
TLHG5201	Vishay	Green	2V	10mA	45mcd	569nm	28°	Diffused	12.20mm	Obsolete
TLHG5401	Vishay	Green	2.4V	10mA	12mcd	569nm	60°	Diffused	12.80mm	Active
4300H5LC	VCC	Green	1.8V	2mA	2.3mcd	—	50°	Diffused	8.89mm	Not For New Designs
HLMP-3568	Broadcom	Green	2.1V	10mA	10.6mcd	569nm	40°	Clear	6.35mm	Active
HLMP-C515	Broadcom	Green	2.2V	20mA	300mcd	569nm	15°	Clear	8.91mm	Active
HLMP-C515-L0002	Broadcom	Green	2.2V	20mA	300mcd	569nm	15°	Clear	8.91mm	Active
HLMP-C515-L00B2	Broadcom	Green	2.2V	20mA	300mcd	570nm	20°	Tinted	—	Active
HLMP-C523	Broadcom	Green	2.2V	20mA	170mcd	570nm	25°	Clear	8.91mm	Active
HLMP-C523-J0002	Broadcom	Green	2.2V	20mA	170mcd	570nm	25°	Clear	8.91mm	Active
HLMP-C615-G0001	Broadcom	Green	2.2V	20mA	45mcd	559nm	15°	Clear	8.91mm	Active
LTL-307GE-012	Lite-On	Green	2.1V	20mA	60mcd	569nm	40°	Clear	9.85mm	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Closest Electrical Match):

HLMP-C615-G0001 provides the closest brightness match to TLHG5201 at 45mcd with identical wavelength specification (559nm dominant). Forward voltage of 2.2V and 20mA test current require circuit adjustment but remain within acceptable operating parameters. This part is active and ROHS3 compliant.

HLMP-C523 and HLMP-C523-J0002 offer higher brightness (170mcd) at 2.2V forward voltage with 25° viewing angle. These parts are functionally equivalent for applications requiring moderate brightness increase. Both are active products with full compliance certifications. HLMP-C523-J0002 is available in Cut Tape packaging with significantly higher inventory (28,363 pcs).

Secondary Substitutes (Active Status, Moderate Parameter Variation):

HLMP-C515 and HLMP-C515-L0002 deliver significantly higher brightness (300mcd) at 2.2V forward voltage. These parts are suitable for applications requiring enhanced visibility. HLMP-C515-L0002 is available in Cut Tape packaging. Both maintain active product status and full compliance.

LTL-307GE-012 from Lite-On provides 60mcd brightness at 2.1V forward voltage with 40° viewing angle. This part offers a balanced alternative with active status and ROHS3 compliance.

Alternative Substitutes (Caution Required):

TLHG5401 from Vishay is active but delivers significantly lower brightness (12mcd) compared to TLHG5201 (45mcd). This part is suitable only for applications where reduced brightness is acceptable.

4300H5LC from VCC is marked "Not For New Designs" and should be avoided for new implementations. This part is retained in the list only for legacy system maintenance where exact replacement is required.

Frequently Asked Questions (FAQ)

Q: Can HLMP-C515 directly replace TLHG5201 without circuit modification?

A: HLMP-C515 operates at 2.2V forward voltage (versus TLHG5201's 2V) and requires 20mA test current (versus 10mA). Circuit current-limiting resistor values must be recalculated to accommodate these differences. The 300mcd brightness is significantly higher than TLHG5201's 45mcd, which may require optical diffusion or reduced drive current depending on application requirements.

Q: What is the difference between diffused and clear lens transparency?

A: TLHG5201 features a diffused lens that scatters light over a wider area, reducing peak brightness but improving visibility from off-axis angles. Clear lens parts (HLMP-C515, HLMP-C523, LTL-307GE-012) concentrate light more directionally, resulting in higher peak brightness but narrower viewing angles. Lens transparency selection depends on application field-of-view requirements.

Q: Are HLMP-C523-J0002 and HLMP-C523 electrically identical?

A: Yes. HLMP-C523-J0002 is the Cut Tape (CT) packaging variant of HLMP-C523 (Bulk packaging). Both parts are electrically and mechanically identical with 170mcd brightness, 2.2V forward voltage, and 25° viewing angle. The packaging difference affects only supply format and inventory availability.

Q: Why is 4300H5LC listed if it is "Not For New Designs"?

A: 4300H5LC is included for reference in legacy system maintenance scenarios where existing designs require exact replacement. This part should not be selected for new product development. Active alternatives with superior product status are available.

Q: What viewing angle should I select for my application?

A: Viewing angle determines the cone of light distribution. TLHG5201's 28° angle provides moderate directional light. Narrower angles (15°–20°) concentrate brightness for focused indication. Wider angles (40°–60°) distribute light for omnidirectional visibility. Select based on indicator placement and observer position requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), matching TLHG5201's environmental certifications.

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