5HD12V LED RED DIFFUSED T-1 3/4 THROUGH HOLE

Part Overview

The 5HD12V is a red LED indication component manufactured by Bivar Inc., designed for through-hole mounting applications. This part features a diffused red lens with a 5mm T-1 3/4 form factor and operates at 12V forward voltage with a 25 millicandela rating. The product status is obsolete, making identification of compatible substitute parts essential for ongoing component sourcing and design continuity.

Key Parameters

Parameter	5HD12V Value
Manufacturer	Bivar Inc.
Color	Red
Lens Transparency	Diffused
Lens Size	5mm, T-1 3/4
Lens Style	Round with Domed Top
Millicandela Rating	25mcd
Voltage - Forward (Vf) (Typ)	12V
Current - Test	10mA
Viewing Angle	45°
Wavelength - Peak	625nm
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	8.50mm
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 5HD12V are identified based on electrical and mechanical compatibility within the specified parameters:

Primary Substitution Criteria:

Lens Size and Configuration: T-1 3/4 form factor with 5mm round domed top diffused lens ensures physical fit and optical consistency
Mounting Type: Through-hole radial package for PCB compatibility
Color and Optical Properties: Red diffused lens configuration
Mechanical Dimensions: Height and diameter constraints for circuit board clearance
Operating Characteristics: Forward voltage, test current, and millicandela output

Substitute parts are grouped into two categories:

Group 1 - T-1 3/4 (5mm) Form Factor Substitutes: Parts maintaining the exact physical form factor (LTL-307P, LTL-307E, LTL-307E-012, LTL-4223, LTL-4223-012, LTL-4213-012, 5219240F)

Group 2 - Alternative Form Factor Substitutes: Parts with 5mm round form factor but different mechanical envelope (151051RS11000, 333-2SDRD/S530-A3, LTL-10223W)

Parameter Comparison

Parameter	5HD12V	151051RS11000	333-2SDRD/S530-A3	5219240F	LTL-10223W	LTL-307E	LTL-307E-012	LTL-307P	LTL-4213-012	LTL-4223	LTL-4223-012
Manufacturer	Bivar Inc.	Würth Elektronik	Everlight Electronics Co Ltd	Dialight	Lite-On Inc.	Lite-On Inc.	Lite-On Inc.	Lite-On Inc.	Lite-On Inc.	Lite-On Inc.	Lite-On Inc.
Color	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red
Lens Transparency	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused
Lens Size	5mm, T-1 3/4	4.90mm Dia	5.00mm Dia	5.00mm Dia	4.75mm Dia	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4
Lens Style	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top
Millicandela Rating	25mcd	30mcd	160mcd	6.3mcd	60mcd	19mcd	19mcd	5.6mcd	3.7mcd	19mcd	19mcd
Voltage - Forward (Vf) (Typ)	12V	2.1V	2V	—	2V	2V	2V	2.1V	2.1V	2V	2V
Current - Test	10mA	20mA	20mA	10mA	10mA	20mA	20mA	20mA	20mA	10mA	20mA
Viewing Angle	45°	60°	30°	—	60°	50°	50°	50°	36°	36°	36°
Wavelength - Peak	625nm	650nm	650nm	—	635nm	635nm	635nm	697nm	697nm	635nm	635nm
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max)	8.50mm	8.95mm	8.90mm	8.94mm	7.20mm	8.60mm	9.85mm	8.60mm	9.85mm	8.60mm	9.85mm
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (T-1 3/4 Form Factor Compatibility):

LTL-4223 / LTL-4223-012 (Lite-On Inc.): Active product status with T-1 3/4 form factor, 19mcd brightness, 2V forward voltage. Available in both bulk (LTL-4223) and tape & reel packaging (LTL-4223-012). RoHS3 compliant.
LTL-307E / LTL-307E-012 (Lite-On Inc.): Active product with identical T-1 3/4 lens size, 19mcd rating, and 2V forward voltage. Available in bulk and tape & reel configurations (LTL-307E-012). RoHS3 compliant.
LTL-307P (Lite-On Inc.): Active product maintaining T-1 3/4 form factor, 5.6mcd brightness, 2.1V forward voltage. RoHS3 compliant.
5219240F (Dialight): Active product from the 521 series, T-1 3/4 form factor, 6.3mcd brightness, 10mA test current matching the original specification. RoHS3 compliant.

Secondary Substitutes (Alternative Form Factors):

LTL-10223W (Lite-On Inc.): 4.75mm lens size (smaller form factor), 60mcd brightness, 2V forward voltage, 10mA test current. Lower height profile (7.20mm) for space-constrained applications.
151051RS11000 (Würth Elektronik): 4.90mm lens size, 30mcd brightness, 2.1V forward voltage. RoHS3 compliant.
333-2SDRD/S530-A3 (Everlight Electronics): 5.00mm lens diameter, 160mcd brightness (significantly higher output), 2V forward voltage, 30° viewing angle. RoHS3 compliant.

Critical Design Considerations:

The original 5HD12V operates at 12V forward voltage, which is substantially higher than all substitute parts (2V to 2.1V range). Circuit design modifications are required if this part is substituted; voltage dropping resistors or alternative power supply configurations must be implemented to accommodate the lower forward voltage specifications of modern replacements.

Form factor compatibility: T-1 3/4 substitute parts maintain identical physical dimensions. Alternative 5mm round form factor parts may require mechanical redesign of mounting structures or lens clearance provisions.

Frequently Asked Questions (FAQ)

Q: Can the 5HD12V be directly replaced without circuit modification? A: No. The 5HD12V operates at 12V forward voltage, while all available substitutes operate at 2V to 2.1V. Circuit redesign is required to accommodate the lower forward voltage specifications. Voltage dropping resistors or alternative power supply configurations must be implemented.

Q: What is the key difference between LTL-4223 and LTL-4223-012? A: Both parts are identical in electrical and optical specifications (19mcd, 2V Vf, 623nm wavelength). The difference is packaging: LTL-4223 is supplied in bulk packaging, while LTL-4223-012 is supplied in tape & reel (TR) format. Selection depends on production volume and assembly process requirements.

Q: Why do some substitute parts have significantly higher millicandela ratings? A: Millicandela rating represents luminous intensity. Parts such as the 333-2SDRD/S530-A3 (160mcd) provide substantially brighter illumination than the original 5HD12V (25mcd). Selection depends on application requirements for visual indication brightness. Lower brightness parts (e.g., LTL-307P at 5.6mcd) may be preferred in space-constrained or power-limited applications.

Q: Are all substitute parts RoHS3 compliant? A: All listed substitute parts maintain RoHS3 compliance, ensuring compatibility with current environmental and regulatory standards. The original 5HD12V has obsolete product status without specified RoHS certification.

Q: Which substitute offers the smallest physical footprint? A: The LTL-10223W features the lowest maximum height of 7.20mm compared to 8.50mm for the original part, though it uses a 4.75mm lens diameter instead of the standard 5mm. All other T-1 3/4 form factor substitutes maintain comparable heights between 8.60mm and 9.85mm.

Q: What viewing angle considerations apply to substitute selection? A: The original 5HD12V specifies 45° viewing angle. Substitute parts range from 30° (narrower, more focused indication) to 60° (wider, more dispersed indication). The 333-2SDRD/S530-A3 provides a 30° viewing angle suitable for direct line-of-sight applications, while LTL-10223W and 151051RS11000 provide 60° angles for broader visibility in all directions.

Q: Is inventory availability a practical consideration for component selection? A: Yes. Substitute parts with largest documented inventory include LTL-10223W (130,782 pcs), 151051RS11000 (3,373 pcs), and 5219240F (2,526 pcs). Inventory status should be confirmed with suppliers for current production programs.

Q: What wavelength differences exist among substitutes? A: Peak wavelengths range from 635nm to 697nm across substitutes. The original 5HD12V specifies 625nm. Modern substitutes cluster around 635nm to 650nm, which is within normal red LED manufacturing tolerances and provides visually equivalent red color perception.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message