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HLMP1700MP4B Equivalent & Substitute Parts
Part Overview
The HLMP1700MP4B is a 3mm red diffused LED circuit board indicator manufactured by onsemi, designed for through-hole right-angle mounting applications. This part operates at 1.8V with a 2mA rated current and delivers 2.1mcd luminous intensity at a 635nm peak wavelength. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications requiring compatible red LED indicators with similar electrical and mechanical characteristics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | HLMP1700MP4B |
| Manufacturer | onsemi |
| Color | Red |
| Wavelength - Peak | 635nm |
| Voltage Rating | 1.8V |
| Current | 2mA |
| Millicandela Rating | 2.1mcd |
| Viewing Angle | 50° |
| Lens Type | Diffused, Tinted |
| Lens Style | Round with Domed Top |
| Lens Size | 3mm, T-1 |
| Mounting Type | Through Hole, Right Angle |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution for the HLMP1700MP4B is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Color: Red
- Lens Size: 3mm, T-1
- Mounting Type: Through Hole, Right Angle
- Wavelength - Peak: 635nm
- Voltage Rating: 1.7V to 1.8V (within 0.1V tolerance)
- Current: 2mA
- Millicandela Rating: 2.1mcd
- Lens Type: Diffused, Tinted
- Lens Style: Round with Domed Top
- Viewing Angle: 50° (±10° acceptable)
Direct Equivalents meet all primary criteria and are manufactured by Broadcom Limited as active products in the HLMP-1700 series.
Similar Alternatives share the core mechanical form factor (3mm T-1 through-hole red diffused LED) but may vary in voltage rating, current consumption, or luminous intensity. These parts are suitable only when circuit design accommodates the parameter differences.
Parameter Comparison
| Parameter | HLMP1700MP4B (Main) | HLMP-1700-B00A1 (Direct) | HLMP-1700-B00A2 (Direct) | 3HD-F (Similar) | 4300F1LC (Similar) | HLMP-1301-G00FG (Similar) | HLMP-1600-D00A1 (Similar) | HLMP-1700 (Similar) |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Broadcom Limited | Broadcom Limited | Bivar Inc. | Visual Communications Company - VCC | Broadcom Limited | Broadcom Limited | Broadcom Limited |
| Color | Red | Red | Red | Red | Red | Red | Red | Red |
| Wavelength - Peak (nm) | 635 | 635 | 635 | 625 | 635 | 635 | 635 | 635 |
| Voltage Rating (V) | 1.8 | 1.7 | 1.7 | 2.0 | 1.8 | 1.9 | 5.0 | 1.7 |
| Current (mA) | 2 | 2 | 2 | 20 | 2 | 10 | 10 | 2 |
| Millicandela Rating (mcd) | 2.1 | 2.1 | 2.1 | 30 | 1.8 | 8.6 | 2.1 | 2.1 |
| Viewing Angle (°) | 50 | 50 | Not specified | 35 | 50 | 60 | 60 | 50 |
| Lens Type | Diffused, Tinted | Diffused, Tinted | Diffused, Tinted | Diffused | Diffused | Diffused | Diffused, Tinted | Diffused |
| 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 |
| Lens Size | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 | 3mm, T-1 |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole | Through Hole | Through Hole | Through Hole, Right Angle | Through Hole |
| Product Status | Obsolete | Active | Active | Active | Not For New Designs | Active | Active | Active |
| RoHS Status | Not specified | 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) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | Not specified | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Direct Equivalents (Preferred for Replacement):
HLMP-1700-B00A1 and HLMP-1700-B00A2 are the primary substitutes for the obsolete HLMP1700MP4B. Both are manufactured by Broadcom Limited and carry Active product status. These parts match the main part across all critical electrical parameters: 1.7V voltage rating (0.1V lower than the original, within acceptable tolerance for LED applications), 2mA current, 2.1mcd luminous intensity, 635nm peak wavelength, and identical mechanical form factor (3mm T-1 through-hole right-angle mount with diffused tinted lens). Both parts are ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements. HLMP-1700-B00A1 is packaged in bulk with 1,391 units in stock; HLMP-1700-B00A2 is also bulk packaged with 1,316 units in stock.
Similar Alternatives (Application-Dependent):
3HD-F (Bivar Inc.) shares the mechanical form factor but operates at 2V with 20mA test current and delivers 30mcd luminous intensity. This part is suitable only for applications where higher brightness and increased current consumption are acceptable. The 35° viewing angle is narrower than the original 50°.
4300F1LC (Visual Communications Company - VCC) matches the original voltage (1.8V) and current (2mA) specifications but is marked as Not For New Designs. This part is suitable only for legacy system maintenance where exact parameter matching is required and new design constraints do not apply.
HLMP-1301-G00FG (Broadcom Limited) operates at 1.9V with 10mA test current and delivers 8.6mcd luminous intensity with a 60° viewing angle. This part is suitable for applications requiring higher brightness and wider viewing angle, provided the circuit design accommodates the increased current consumption.
HLMP-1600-D00A1 and HLMP-1600-D00A2 (Broadcom Limited) operate at 5V with 10mA current. These parts are suitable only for 5V circuit designs and are not compatible with the original 1.8V specification without circuit modification.
HLMP-1700 (Broadcom Limited) is a radial-mount variant of the HLMP-1700 series with identical electrical specifications (1.7V, 2mA, 2.1mcd, 635nm) but differs in mounting configuration. This part is suitable only if the circuit board layout accommodates radial mounting instead of right-angle through-hole mounting.
Frequently Asked Questions (FAQ)
Q: Can HLMP-1700-B00A1 or HLMP-1700-B00A2 be used as direct replacements for HLMP1700MP4B?
A: Yes. Both parts are direct equivalents. The voltage rating difference of 0.1V (1.7V versus 1.8V) is within acceptable tolerance for LED indicator applications. All other electrical and mechanical parameters match the original specification. Both parts are manufactured by Broadcom Limited and carry Active product status with ROHS3 compliance.
Q: What is the difference between HLMP-1700-B00A1 and HLMP-1700-B00A2?
A: Both parts are electrically and mechanically identical. The primary difference is inventory availability: HLMP-1700-B00A1 has 1,391 units in stock, while HLMP-1700-B00A2 has 1,316 units in stock. Both are bulk packaged and suitable for production use.
Q: Why is the 3HD-F not recommended as a direct replacement?
A: The 3HD-F operates at 2V with 20mA test current and delivers 30mcd luminous intensity, compared to the original 1.8V, 2mA, and 2.1mcd. The significantly higher brightness and current consumption require circuit redesign. Additionally, the 35° viewing angle is narrower than the original 50°. This part is suitable only for applications where higher brightness is required and the circuit design can accommodate increased power consumption.
Q: Can HLMP-1600-D00A1 or HLMP-1600-D00A2 replace the HLMP1700MP4B?
A: No. These parts operate at 5V with 10mA current, compared to the original 1.8V and 2mA. Direct substitution would require significant circuit modification and is not recommended without complete circuit redesign.
Q: What mounting configuration differences exist between the substitute parts?
A: HLMP-1700-B00A1 and HLMP-1700-B00A2 maintain the original right-angle through-hole mounting configuration. The HLMP-1700 variant uses radial mounting, which is incompatible with circuit boards designed for right-angle mounting. The 3HD-F, 4300F1LC, and HLMP-1301-G00FG use standard through-hole radial mounting without the right-angle configuration.
Q: Are all substitute parts ROHS3 compliant?
A: HLMP-1700-B00A1, HLMP-1700-B00A2, 3HD-F, 4300F1LC, HLMP-1301-G00FG, HLMP-1600-D00A1, HLMP-1600-D00A2, and HLMP-1700 are all ROHS3 compliant. The original HLMP1700MP4B RoHS status is not specified in the provided data.
Q: What is the significance of the Moisture Sensitivity Level (MSL) rating?
A: All parts listed, including the original HLMP1700MP4B, carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage, handling, or assembly. These parts do not require special moisture control measures.
Q: Why is 4300F1LC marked as Not For New Designs?
A: The 4300F1LC is a legacy product from Visual Communications Company - VCC. While it matches the original voltage and current specifications exactly, its Not For New Designs status indicates that the manufacturer recommends using newer alternatives for new product development. This part is suitable only for maintenance and repair of existing systems.
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