Bivar Inc. 5URC LED Red Clear T-1 3/4 Through Hole

Part Overview

The Bivar Inc. 5URC is a red LED indication component rated at 600 millicandela with a clear lens, designed for through-hole applications. This component operates at 1.7V forward voltage and is currently classified as obsolete. Given its obsolete product status, identifying equivalent and substitute parts is necessary for continued application support, design updates, and component procurement when original stock becomes unavailable.

Key Parameters

Parameter	5URC Specification
Manufacturer	Bivar Inc.
Color	Red
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Millicandela Rating	600mcd
Voltage - Forward (Vf) Typ	1.7V
Current - Test	20mA
Viewing Angle	20°
Mounting Type	Through Hole
Wavelength - Peak	645nm
Lens Style	Round with Domed Top
Height (Max)	8.50mm
Package / Case	Radial
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 5URC is determined by matching critical electrical and mechanical parameters. The following parameters are controlling factors for substitution compatibility:

Mechanical Parameters: Lens size (5mm, T-1 3/4), mounting type (through hole), package configuration (radial), and lens style (round domed top) establish physical compatibility with the original PCB footprint and mechanical envelope.

Electrical Parameters: Forward voltage (Vf), test current (20mA), wavelength (red spectrum, 645nm nominal), and millicandela rating (600mcd) establish functional compatibility. Forward voltage deviations within component tolerances allow operation from the same current-limiting resistor network.

Optical Parameters: Lens transparency (clear) and viewing angle define the light emission characteristics and are critical for applications where light diffusion and beam spread must match the original design.

Substitute parts are selected where these parameter sets align with the original specification, accommodating standard component variations within the red LED category.

Parameter Comparison

Parameter	5URC	5RD	333-2SURC/S530-A2	5219184F	LTL2R3KEK	LTL2R3KRK	MV3750	MV8141	OVLLR8C7	SSL-LX5093SRC/F
Manufacturer	Bivar Inc.	Bivar Inc.	Everlight Electronics	Dialight	Lite-On Inc.	Lite-On Inc.	onsemi	Fairchild Semiconductor	TT Electronics/Optek	Lumex Opto/Components
Color	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red
Lens Transparency	Clear	Diffused	Clear	Clear	Clear	Clear	Clear	Clear	Clear	Clear
Lens Size	5mm, T-1 3/4	5mm, T-1 3/4	5.00mm Dia	5.00mm 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
Millicandela Rating	600mcd	2mcd	837mcd	3mcd	700mcd	680mcd	150mcd	370mcd	900mcd	1200mcd
Voltage - Forward (Vf) Typ	1.7V	2.1V	2V	—	2.05V	2V	2.2V	1.7V	2V	1.7V
Current - Test	20mA	20mA	20mA	—	20mA	20mA	20mA	20mA	20mA	20mA
Viewing Angle	20°	45°	10°	—	30°	30°	24°	40°	100°	30°
Wavelength - Peak	645nm	700nm	639nm	—	632nm	639nm	635nm	660nm	—	660nm
Lens Style	Round Domed Top	Round Domed Top	Round Domed Top	Round Domed Top	Round Domed Top	Round Domed Top	Round Domed Top	Round Domed Top	Round Flat Top	Round Domed Top
Height (Max)	8.50mm	8.50mm	8.90mm	10.95mm	8.70mm	8.70mm	8.89mm	—	6.80mm	8.60mm
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Product Status	Obsolete	Active	Active	Active	Active	Active	Obsolete	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	Not Applicable

Engineering Selection Recommendations

Substitute parts for the 5URC are available with active product status, providing assured long-term supply and design support. The following parts are recommended for substitution based on product status and compliance certifications:

Primary Substitutes (Active Product Status): LTL2R3KEK, LTL2R3KRK, SSL-LX5093SRC/F, OVLLR8C7, 333-2SURC/S530-A2, and MV8141 maintain active product status with RoHS3 compliance or compliance records. These parts offer electrical characteristics compatible with the 5URC within standard component tolerances and share the radial package configuration.

Moisture Sensitivity Consideration: The majority of active substitute parts maintain MSL 1 (Unlimited) rating, matching the 5URC specification. MV8141 carries an MSL 3 (168 Hours) rating, requiring controlled storage and assembly procedures consistent with IPC-J-STD-033 standards.

Optical and Mechanical Compatibility: LTL2R3KEK, LTL2R3KRK, SSL-LX5093SRC/F, and MV8141 provide forward voltage (1.7V to 2.05V) and height characteristics (8.60mm to 8.70mm) consistent with the 5URC footprint. OVLLR8C7 offers a shorter profile (6.80mm) and extended viewing angle (100°) for applications requiring broader light distribution. The 5RD variant uses diffused optics and should be selected only where diffusion improves application performance.

Wavelength Alignment: Red wavelength characteristics across substitute parts fall within the 623nm to 700nm range. Direct wavelength replacement is available with LTL2R3KEK (624nm dominant), LTL2R3KRK (631nm dominant), and SSL-LX5093SRC/F (660nm nominal), matching the 5URC's red spectrum classification.

Frequently Asked Questions (FAQ)

Q: Can the Bivar 5RD substitute for the 5URC? A: The 5RD shares the same manufacturer, lens size (5mm T-1 3/4), mounting type (through hole), and radial package. However, the 5RD uses diffused lens transparency versus the 5URC's clear lens, and delivers 2mcd versus 600mcd. Substitution is appropriate only if the application requirements permit diffused optics and reduced brightness.

Q: What is the primary difference between LTL2R3KEK and LTL2R3KRK? A: Both Lite-On parts share identical mechanical specifications and mounting compatibility. The principal difference is wavelength: LTL2R3KEK operates at 624nm dominant wavelength with 700mcd output, while LTL2R3KRK operates at 631nm dominant with 680mcd output. REACH status also differs, with LTL2R3KRK marked as REACH Affected. Selection depends on wavelength-specific application requirements.

Q: Is the SSL-LX5093SRC/F compatible with the original PCB layout? A: The SSL-LX5093SRC/F maintains the 5mm T-1 3/4 lens size, radial package, through-hole mounting configuration, and 8.60mm maximum height. These mechanical parameters ensure PCB footprint compatibility. The 1.7V forward voltage matches the 5URC exactly, eliminating resistor network redesign for the same 20mA test current.

Q: Which substitute provides the highest brightness? A: The SSL-LX5093SRC/F delivers 1200mcd, the highest output among substitutes. OVLLR8C7 provides 900mcd. For brightness-critical applications, these parts are preferred. Higher brightness extends visible indication range in ambient lighting conditions.

Q: Can OVLLR8C7 be used in applications requiring narrow viewing angles? A: The OVLLR8C7 specifies a 100° viewing angle, substantially broader than the 5URC (20°). This part is suitable for applications requiring wide light distribution. For applications requiring narrow, focused beams, select LTL2R3KEK, LTL2R3KRK, or SSL-LX5093SRC/F with 30° specifications.

Q: What is the significance of MSL 3 rating on MV8141? A: MV8141 carries Moisture Sensitivity Level 3 (168 Hours), requiring protection from atmospheric moisture during storage and up to 168 hours before soldering. The 5URC specifies MSL 1 (Unlimited), requiring no moisture control. If MV8141 is selected, implement IPC-J-STD-033 moisture management protocols including dry-pack storage with desiccant and humidity monitoring.

Q: Are there height constraint considerations? A: The 5URC specifies 8.50mm maximum height. Substitute heights range from 6.80mm (OVLLR8C7) to 10.95mm (5219184F). OVLLR8C7 is acceptable where clearance margins exist. The 5219184F at 10.95mm requires mechanical envelope assessment. All others fall within 8.60mm to 8.90mm, suitable for space-constrained designs.

Q: What certifications ensure RoHS compliance? A: Active substitutes including LTL2R3KEK, LTL2R3KRK, 5219184F, OVLLR8C7, and MV8141 carry explicit ROHS3 Compliant certification. These parts satisfy EU Directive 2011/65/EU and amendments. The 5RD, 333-2SURC/S530-A2, and SSL-LX5093SRC/F have compliance records but without explicit ROHS3 notation in the provided data. Consult manufacturer documentation for formal compliance statements if required for regulated applications.

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