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HSMS-2803-BLKG Equivalent & Substitute Parts
Part Overview
The HSMS-2803-BLKG is an RF Schottky diode manufactured by Broadcom Limited, configured as a 1 Pair Common Anode device rated for 70V peak reverse voltage with 1A maximum current in SOT-23-3 surface mount packaging. This part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across voltage rating, current capacity, diode configuration, and package form factor while offering active product status from current manufacturers.
Substiute Parts
Key Parameters
| Parameter | HSMS-2803-BLKG |
|---|---|
| Diode Type | Schottky - 1 Pair Common Anode |
| Voltage - Peak Reverse (Max) | 70V |
| Current - Max | 1 A |
| Capacitance @ Vr, F | 2pF @ 0V, 1MHz |
| Resistance @ If, F | 35Ohm @ 5mA, 1MHz |
| Operating Temperature (TJ) | 150°C |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Product Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the HSMS-2803-BLKG is determined by strict alignment with the following electrical and mechanical parameters:
- Diode Configuration: 1 Pair Common Anode (mandatory match)
- Voltage Rating: 70V DC Reverse (Vr) maximum (mandatory match)
- Package / Case: TO-236-3, SC-59, SOT-23-3 (mandatory match)
- Technology: Schottky (mandatory match)
- Operating Temperature: 150°C junction temperature maximum (mandatory match)
- Moisture Sensitivity: MSL 1 (Unlimited) or equivalent (mandatory match)
All four substitute parts listed below meet these criteria. The primary distinction among substitutes is current rating capacity and product status. The HSMS-2803-BLKG specifies 1A maximum current; substitute parts are rated for 70mA average rectified current per diode, representing a reduced current capacity. This reduction is acceptable in applications where the circuit design operates within the 70mA specification. All substitute parts maintain active product status with RoHS3 compliance and REACH unaffected designation.
Parameter Comparison
| Parameter | HSMS-2803-BLKG (Broadcom) | BAS70-06FILM (STMicroelectronics) | BAS70-06,215 (Nexperia) | BAS7006E6327HTSA1 (Infineon) | BAS7006E6433HTMA1 (Infineon) |
|---|---|---|---|---|---|
| Diode Configuration | 1 Pair Common Anode | 1 Pair Common Anode | 1 Pair Common Anode | 1 Pair Common Anode | 1 Pair Common Anode |
| Technology | Schottky | Schottky | Schottky | Schottky | Schottky |
| Voltage - DC Reverse (Vr) Max | 70V | 70V | 70V | 70V | 70V |
| Current Rating | 1 A (Max) | 70mA (DC) | 70mA (DC) | 70mA (DC) | 70mA (DC) |
| Voltage - Forward (Vf) Max @ If | Not specified | 1V @ 15mA | 1V @ 15mA | 1V @ 15mA | 1V @ 15mA |
| Operating Temperature (TJ) Max | 150°C | 150°C | 150°C | 150°C | 150°C |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
All four substitute parts are qualified for direct replacement based on electrical and mechanical parameter alignment. Selection among substitutes should prioritize active product status and supply chain availability:
BAS70-06,215 (Nexperia USA Inc.) offers the highest inventory availability at 180,300 pieces in stock, providing supply security for volume production and long-term procurement. This part carries active product status with full RoHS3 compliance and REACH unaffected designation.
BAS70-06FILM (STMicroelectronics) maintains 23,100 pieces in inventory with active product status, RoHS3 compliance, and packaging in Cut Tape and Digi-Reel formats suitable for automated assembly operations.
BAS7006E6327HTSA1 and BAS7006E6433HTMA1 (Infineon Technologies) both provide active product status with enhanced reverse recovery time specification (100 ps) and lower reverse leakage current (100 nA @ 50V) compared to the original part. These variants offer improved high-frequency performance characteristics. Inventory levels are 6,100 and 866 pieces respectively, with packaging in Cut Tape and Tape & Reel formats.
All substitutes maintain MSL 1 (Unlimited) moisture sensitivity rating, eliminating bake-out requirements for storage and handling. Current rating reduction from 1A to 70mA per diode requires circuit design verification to confirm operation within the lower current specification.
Frequently Asked Questions (FAQ)
Q: Can BAS70-06FILM, BAS70-06,215, BAS7006E6327HTSA1, and BAS7006E6433HTMA1 be used interchangeably with HSMS-2803-BLKG?
A: Yes, all four parts are electrically and mechanically compatible substitutes. They share identical diode configuration (1 Pair Common Anode), voltage rating (70V), package form factor (SOT-23-3), and operating temperature range (150°C). The primary design consideration is current capacity: substitute parts are rated for 70mA average rectified current per diode versus the original 1A maximum. Circuit designs must operate within the 70mA specification.
Q: What is the significance of the current rating difference between HSMS-2803-BLKG (1A) and the substitute parts (70mA)?
A: The HSMS-2803-BLKG specifies 1A maximum current capacity, while all substitute parts are rated for 70mA average rectified current per diode. This represents a 14:1 reduction in current handling capability. Applications requiring current levels above 70mA per diode cannot use these substitutes. Applications operating at or below 70mA per diode are fully compatible.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. BAS70-06FILM, BAS70-06,215, BAS7006E6327HTSA1, and BAS7006E6433HTMA1 all carry RoHS3 Compliant designation and REACH Unaffected status, meeting current environmental and regulatory requirements.
Q: What is the difference between the Infineon variants BAS7006E6327HTSA1 and BAS7006E6433HTMA1?
A: Both Infineon parts are electrically identical with 70V rating, 70mA current capacity, and SOT-23-3 packaging. The primary difference is packaging format: BAS7006E6327HTSA1 is supplied in Cut Tape (CT), while BAS7006E6433HTMA1 is supplied in Tape & Reel (TR). Selection depends on assembly process requirements and volume handling.
Q: Do substitute parts require different PCB layout or thermal management compared to HSMS-2803-BLKG?
A: No. All substitute parts use identical SOT-23-3 package geometry (TO-236-3, SC-59), requiring no PCB layout modifications. Thermal management requirements are equivalent due to matching operating temperature ratings (150°C junction maximum) and similar power dissipation profiles at rated current levels.
Q: Which substitute part offers the best supply chain security?
A: BAS70-06,215 from Nexperia USA Inc. provides the highest inventory availability at 180,300 pieces in stock, offering superior supply continuity for production and long-term design support.
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