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HSMS-282B-TR2G Equivalent & Substitute Parts
Part Overview
The HSMS-282B-TR2G is an RF Schottky diode manufactured by Broadcom Limited, designed for high-frequency applications requiring low capacitance and fast switching characteristics. This single Schottky diode is rated for 15V peak reverse voltage with a maximum current of 1A in an SC-70 SOT-323 surface mount package. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Diode Type | Schottky - Single |
| Voltage - Peak Reverse (Max) | 15V |
| Current - Max | 1 A |
| Capacitance @ Vr, F | 1pF @ 0V, 1MHz |
| Resistance @ If, F | 12Ohm @ 5mA, 1MHz |
| Operating Temperature (TJ) | 150°C |
| Package / Case | SC-70, SOT-323 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the HSMS-282B-TR2G is determined by the following critical parameters:
- Diode Technology: Schottky diode type required for RF and high-frequency switching applications
- Voltage Rating: 15V peak reverse voltage maximum
- Package Compatibility: SC-70 / SOT-323 surface mount package for direct PCB replacement
- Capacitance Characteristics: Low junction capacitance (1pF @ 0V, 1MHz) essential for RF performance
- Moisture Sensitivity: MSL 1 rating for unlimited shelf life compatibility
The substitute part 1PS70SB82,115 from Nexperia USA Inc. meets these core substitution criteria. Both parts share identical voltage ratings, package geometry, and capacitance specifications, enabling functional equivalence in RF circuit applications.
Parameter Comparison
| Parameter | HSMS-282B-TR2G (Broadcom) | 1PS70SB82,115 (Nexperia) |
|---|---|---|
| Diode Type | Schottky - Single | Schottky |
| Voltage - Peak Reverse (Max) | 15V | 15V |
| Current Rating | 1 A (Max) | 30mA (Average Rectified) |
| Capacitance @ Vr, F | 1pF @ 0V, 1MHz | 1pF @ 0V, 1MHz |
| Package / Case | SC-70, SOT-323 | SC-70, SOT-323 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active |
| Operating Temperature (Max) | 150°C (TJ) | 125°C (TJ) |
Engineering Selection Recommendations
The 1PS70SB82,115 is an active production substitute for the obsolete HSMS-282B-TR2G. Both parts maintain identical voltage ratings, package form factors, and RF-critical capacitance specifications. The substitute part carries AEC-Q100 automotive qualification and RoHS3 compliance, providing enhanced supply chain stability and regulatory alignment compared to the original obsolete part.
Current rating differences exist between the two parts (1A maximum for HSMS-282B-TR2G versus 30mA average rectified for 1PS70SB82,115). Circuit designs operating within the 30mA specification envelope will experience full functional equivalence. Designs requiring the full 1A capability of the original part require evaluation of alternative Schottky diodes with higher current ratings in the same package class.
Frequently Asked Questions (FAQ)
Q: Can the 1PS70SB82,115 directly replace the HSMS-282B-TR2G on existing PCBs?
A: Yes, for applications within the 30mA current specification. Both parts use identical SC-70 SOT-323 package geometry and pin configuration, enabling direct PCB substitution without layout modifications.
Q: What is the primary reason for substitution?
A: The HSMS-282B-TR2G is obsolete. The 1PS70SB82,115 is an active production part with identical voltage rating, capacitance characteristics, and package specifications.
Q: Are there current rating limitations with the substitute part?
A: The 1PS70SB82,115 is rated for 30mA average rectified current, compared to 1A maximum for the original part. Verify that circuit operating currents remain within the 30mA specification.
Q: What compliance certifications does the substitute part carry?
A: The 1PS70SB82,115 is AEC-Q100 qualified and RoHS3 compliant. Both parts share MSL 1 moisture sensitivity rating and REACH unaffected status.
Q: Are there temperature operating differences?
A: The original part operates to 150°C junction temperature, while the substitute operates to 125°C maximum junction temperature. Verify thermal operating conditions in your application.
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