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LTL2R3CBK5 Equivalent & Substitute Parts
Part Overview
The LTL2R3CBK5 is a blue 470nm LED indication component manufactured by Lite-On Inc., configured as a discrete 3.7V radial through-hole device in a 5mm T-1 3/4 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The component delivers 1500mcd at 20mA test current with a 30° viewing angle and clear domed lens configuration.
Substiute Parts
Key Parameters
| Parameter | LTL2R3CBK5 Specification |
|---|---|
| Color | Blue |
| Wavelength - Dominant | 470nm |
| Voltage - Forward (Vf) Typical | 3.7V |
| Current - Test | 20mA |
| Millicandela Rating | 1500mcd |
| Lens Style | Round with Domed Top |
| Lens Size | 5mm, T-1 3/4 |
| Viewing Angle | 30° |
| Mounting Type | Through Hole |
| Package / Case | Radial |
| Height (Max) | 8.70mm |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following critical parameters: color (blue), wavelength range (465-472nm dominant), lens configuration (round domed, 5mm T-1 3/4), mounting type (through-hole radial), and forward voltage compatibility (2.7V to 3.8V). All substitute parts maintain ROHS3 compliance and operate at 20mA test current.
The substitute parts are grouped into two categories based on optical and electrical characteristics:
Category A - High Brightness Alternatives (4350-9600mcd): HLMP-CB1A-XY0DD, HLMP-CB1B-XY0DD, HLMP-CB2A-VW0DD, HLMP-CB2B-VW0DD, HLMP-CB3A-UV0DD, HLMP-CB3B-UV0DD, OVLGB0C6B9. These parts offer significantly higher luminous intensity and narrower viewing angles (15-23°).
Category B - Lower Voltage Alternatives (2.7V): 151053BS04500 from Würth Elektronik operates at reduced forward voltage with higher brightness (2000mcd) and wider viewing angle (45°).
Category C - Comparable Brightness (1010mcd): 5219946F from Dialight provides similar brightness output with matching 30° viewing angle and 3.8V forward voltage.
Parameter Comparison
| Part Number | Manufacturer | Wavelength (nm) | Vf (V) | mcd | Viewing Angle | Height (mm) | Product Status | Packaging |
|---|---|---|---|---|---|---|---|---|
| LTL2R3CBK5 | Lite-On Inc. | 470 | 3.7 | 1500 | 30° | 8.70 | Obsolete | - |
| 151053BS04500 | Würth Elektronik | 465 | 2.7 | 2000 | 45° | 8.85 | Active | Bulk |
| 5219946F | Dialight | 472 | 3.8 | 1010 | 30° | 8.70 | Active | Bulk |
| HLMP-CB1A-XY0DD | Broadcom Limited | 470 | 3.2 | 9600 | 15° | 8.90 | Active | Cut Tape (CT) |
| HLMP-CB1B-XY0DD | Broadcom Limited | 470 | 3.2 | 9600 | 15° | 13.21 | Active | Cut Tape (CT) |
| HLMP-CB2A-VW0DD | Broadcom Limited | 470 | 3.2 | 5700 | 23° | 8.90 | Active | Cut Tape (CT) |
| HLMP-CB2B-VW0DD | Broadcom Limited | 470 | 3.2 | 5700 | 23° | 12.57 | Active | Tape & Box (TB) |
| HLMP-CB2G-UW0DD | Broadcom Limited | 470 | 3.1 | 5200 | 23° | 8.90 | Active | Tape & Box (TB) |
| HLMP-CB3A-UV0DD | Broadcom Limited | 470 | 3.2 | 4350 | 30° | 8.90 | Active | Cut Tape (CT) |
| HLMP-CB3B-UV0DD | Broadcom Limited | 470 | 3.2 | 4350 | 30° | 12.25 | Active | Tape & Box (TB) |
| OVLGB0C6B9 | TT Electronics/Optek Technology | 470 | 3.2 | 7200 | 15° | 8.91 | Active | Bulk |
Engineering Selection Recommendations
All substitute parts listed maintain ROHS3 compliance and are classified as active products with unlimited moisture sensitivity levels (MSL 1), ensuring long-term availability and supply chain stability compared to the obsolete LTL2R3CBK5.
Direct Replacement (Matching Viewing Angle and Brightness Profile): HLMP-CB3A-UV0DD and HLMP-CB3B-UV0DD from Broadcom Limited provide the closest functional match with 30° viewing angle, 470nm wavelength, and 4350mcd brightness. These parts operate at 3.2V forward voltage, requiring minimal circuit redesign. HLMP-CB3A-UV0DD is supplied in Cut Tape packaging; HLMP-CB3B-UV0DD is supplied in Tape & Box packaging.
Brightness-Matched Alternative: 5219946F from Dialight delivers comparable 1010mcd brightness with identical 30° viewing angle and 8.70mm height, maintaining the original optical characteristics. Forward voltage of 3.8V is within acceptable tolerance for most applications.
Lower Voltage Option: 151053BS04500 from Würth Elektronik operates at reduced 2.7V forward voltage with enhanced brightness (2000mcd) and wider 45° viewing angle, suitable for applications requiring lower power consumption or broader light distribution.
High-Brightness Alternatives: HLMP-CB1A-XY0DD, HLMP-CB2A-VW0DD, HLMP-CB2G-UW0DD, and OVLGB0C6B9 provide significantly higher luminous intensity (4350-9600mcd) with narrower viewing angles (15-23°), appropriate for applications requiring concentrated light output or increased visibility distance.
Frequently Asked Questions (FAQ)
Q: Can HLMP-CB3A-UV0DD directly replace LTL2R3CBK5 without circuit modification?
A: HLMP-CB3A-UV0DD is electrically compatible with forward voltage of 3.2V versus the original 3.7V. The 0.5V difference is within typical LED circuit tolerance. Both parts operate at 20mA test current, share identical 470nm wavelength, 30° viewing angle, and 5mm T-1 3/4 package configuration. No circuit redesign is required for standard indication applications.
Q: What is the brightness difference between LTL2R3CBK5 and the substitute options?
A: LTL2R3CBK5 delivers 1500mcd. HLMP-CB3A-UV0DD and HLMP-CB3B-UV0DD provide 4350mcd (2.9x brighter). HLMP-CB1A-XY0DD and HLMP-CB1B-XY0DD deliver 9600mcd (6.4x brighter). 5219946F provides 1010mcd (lower brightness). Selection depends on application visibility requirements and circuit current capacity.
Q: How do viewing angles affect substitution compatibility?
A: LTL2R3CBK5 has a 30° viewing angle. HLMP-CB3A-UV0DD and HLMP-CB3B-UV0DD maintain this 30° angle, ensuring identical light distribution. Narrower angles (15° in HLMP-CB1 series) concentrate light in a smaller cone; wider angles (45° in 151053BS04500) distribute light over a broader area. Application placement and visibility requirements determine acceptable angle ranges.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original LTL2R3CBK5 environmental certification. All active substitutes carry MSL 1 (Unlimited) moisture sensitivity levels, providing superior storage stability compared to the original MSL 2A (4 Weeks) specification.
Q: What packaging options are available for production?
A: HLMP-CB3A-UV0DD is supplied in Cut Tape (CT) packaging. HLMP-CB3B-UV0DD is supplied in Tape & Box (TB) packaging. 151053BS04500, 5219946F, and OVLGB0C6B9 are supplied in Bulk packaging. Packaging selection depends on assembly equipment compatibility and production volume requirements.
Q: Can I use HLMP-CB1A-XY0DD or HLMP-CB1B-XY0DD as substitutes?
A: These parts are electrically compatible but feature 15° viewing angles versus the original 30°. The 9600mcd brightness is significantly higher, requiring circuit current verification. Use only in applications where concentrated, high-intensity light output is acceptable and circuit design supports the increased brightness.
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