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ASMT-SRB4-PW505 Equivalent & Substitute Parts
Part Overview
The ASMT-SRB4-PW505 is a red LED indication component manufactured by Broadcom Limited, featuring a 624nm dominant wavelength and 2338mcd brightness rating in a 4-PLCC surface mount package. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production and maintenance applications. The component delivers 2.2V forward voltage at 50mA test current with a 120° viewing angle and clear lens configuration.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | ASMT-SRB4-PW505 |
| Manufacturer | Broadcom Limited |
| Product Status | Obsolete |
| Color | Red |
| Wavelength - Dominant | 624nm |
| Wavelength - Peak | 631nm |
| Voltage - Forward (Vf) Typical | 2.2V |
| Current - Test | 50mA |
| Millicandela Rating | 2338mcd |
| Viewing Angle | 120° |
| Lens Style | Round with Flat Top |
| Lens Size | 2.20mm Dia |
| Lens Transparency | Clear |
| Package / Case | 4-PLCC |
| Size / Dimension | 3.20mm L x 2.80mm W |
| Height (Max) | 2.10mm |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 2A (4 Weeks) |
Substitute Part Grouping Explanation
The ASMT-SRB4-YW905 is identified as a manufacturer-recommended substitute for the ASMT-SRB4-PW505. Substitution eligibility is determined by the following critical parameters:
- Package type: Both parts use 4-PLCC surface mount configuration
- Manufacturer: Both manufactured by Broadcom Limited
- Base product series: Both share the ASMT-SR base product number
- Compliance certifications: Both maintain ROHS3 compliance and identical MSL rating (2A, 4 Weeks)
- Regulatory classifications: Both carry identical ECCN (EAR99) and HTSUS (8541.41.0000) codes
The substitute part maintains mechanical and regulatory compatibility while supporting active production availability.
Parameter Comparison
| Parameter | ASMT-SRB4-PW505 (Main) | ASMT-SRB4-YW905 (Substitute) |
|---|---|---|
| Manufacturer Part Number | ASMT-SRB4-PW505 | ASMT-SRB4-YW905 |
| Manufacturer | Broadcom Limited | Broadcom Limited |
| Product Status | Obsolete | Active |
| Base Product Number | ASMT-SR | ASMT-SR |
| Package / Case | 4-PLCC | 4-PLCC |
| Packaging Type | - | Tape & Reel (TR) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 2A (4 Weeks) | 2A (4 Weeks) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.41.0000 | 8541.41.0000 |
Engineering Selection Recommendations
Selection between the ASMT-SRB4-PW505 and ASMT-SRB4-YW905 should be based on the following factors:
The ASMT-SRB4-PW505 is obsolete and no longer in active production. The ASMT-SRB4-YW905 is the manufacturer-recommended active substitute, currently available in production quantities (24,765 pcs in stock versus 820 pcs for the obsolete part).
Both parts maintain identical compliance certifications: ROHS3 compliance, EAR99 export classification, and 2A MSL rating. Both utilize the 4-PLCC package configuration and share the same base product series.
For new designs or production continuation, the ASMT-SRB4-YW905 is the appropriate selection due to active product status and sustained manufacturing support. The substitute maintains mechanical and regulatory compatibility with the original specification.
Frequently Asked Questions (FAQ)
Q: Can the ASMT-SRB4-YW905 be used as a direct replacement for the ASMT-SRB4-PW505?
A: Yes. Both parts share the 4-PLCC package configuration, identical base product series (ASMT-SR), and equivalent compliance certifications (ROHS3, EAR99, MSL 2A). The substitute is the manufacturer-recommended alternative for the obsolete part.
Q: What is the primary reason for substitution?
A: The ASMT-SRB4-PW505 is classified as obsolete and no longer in active production. The ASMT-SRB4-YW905 provides continued availability with active manufacturing support.
Q: Are there differences in packaging between these parts?
A: The ASMT-SRB4-PW505 packaging specification is not provided. The ASMT-SRB4-YW905 is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount production.
Q: Do both parts meet the same regulatory requirements?
A: Yes. Both parts are ROHS3 compliant, carry EAR99 export classification, and maintain identical HTSUS code (8541.41.0000) and MSL rating (2A, 4 Weeks).
Q: What electrical parameters are specified for the substitute part?
A: Detailed electrical parameters (forward voltage, test current, wavelength, brightness rating, and viewing angle) are not provided in the substitute part specification. Confirmation of electrical compatibility should be obtained from Broadcom Limited technical documentation.
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