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Taiwan Semiconductor Corporation SBS24
- Part No.:
- SBS24
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
SBS24.pdf
- Description:
- BRIDGE RECT 1PHASE 40V 2A ABS
- Quantity:
- Payment:
- Shipping:
Inventory:5,158
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Product details
Overview
SBS24 from Taiwan Semiconductor is a 2A, 40V repetitive peak reverse voltage Schottky bridge rectifier in ABS package with quad configuration, rated for 150°C junction temperature and 50A non-repetitive surge current - used in PoE power delivery and LED driver charging circuits.
For engineers reviewing the SBS24 datasheet, SBS24 pinout, SBS24 application, or SBS24 equivalent, key selection criteria include its 0.50V max forward voltage at 2A/25°C, AEC-Q101-qualified variant availability (SBS24H), moisture sensitivity level 1 compliance, and UL 94V-0 molded case for high-reliability industrial power interfaces.
Technical Context
The SBS24 integrates four Schottky diodes in a single-phase bridge configuration, enabling full-wave rectification without PN-junction switching losses. Its 30°C/W junction-to-lead thermal resistance supports conduction at 2A continuous current under lead-temperature-limited conditions.
Designed for automated SMT placement, the device uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance. Polarity is marked on the ABS case, and the 0.090g unit weight reflects compact surface-mount integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum repetitive reverse voltage per diode; defines safe blocking capability in DC-DC input stages |
| IF | 2 A - average forward current rating; determines continuous power-handling capacity in low-voltage rectifier paths |
| IFSM | 50 A - peak surge current for 8.3ms half-sine; enables robustness against inrush in PoE injectors |
| VF (max) | 0.50 V @ 2A, 25°C - low forward drop reduces conduction loss and thermal load in space-constrained designs |
| TJ max | +150°C - extended junction temperature range supports operation in sealed lighting enclosures or automotive ambient zones |
| RθJL | 30°C/W - thermal resistance from junction to lead; enables direct PCB copper pour heat sinking without heatsink |
Pinout & Package
Package: ABS - surface-mount molded plastic case with UL 94V-0 flammability rating, matte tin-plated leads, and polarity marking per device top-side marking diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 | Bridge AC input terminal | Accepts alternating input; connects to transformer secondary or AC-coupled source in full-wave topology |
| AC2 | Bridge AC input terminal | Second AC input node; completes bridge input pair for bidirectional conduction path |
| + (Anode) | Bridge positive DC output | Delivers rectified positive voltage to downstream filter capacitor or DC bus |
| – (Cathode) | Bridge negative DC output / common reference | Serves as return path and system ground reference; ties to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification option (SBS24H) | Enables use in automotive infotainment power supplies where reliability validation is mandatory |
| Moisture sensitivity level 1 | Eliminates bake preconditioning before reflow; supports standard SMT line throughput without process modification |
| Halogen-free per IEC 61249-2-21 | Meets environmental compliance requirements for RoHS-compliant industrial and networking equipment |
| UL 94V-0 molding compound | Provides flame-retardant housing essential for PoE-powered devices installed in plenum-rated cabling environments |
Applications
| LED Driver Charging Circuit | Power over Ethernet (PoE) Injector |
|---|---|
Use Scenario: Rectifying 24V AC or pulsed DC from flyback transformer secondary in constant-current LED drivers. IC Role / Device Role / Timing Role: Full-wave Schottky bridge providing low-loss AC-to-DC conversion ahead of output capacitor and current regulation stage. Use Value: 0.50V VF minimizes heat generation in thermally isolated LED modules, extending thermal lifetime by reducing junction temperature rise. | Use Scenario: Converting 48V DC from midspan injector to isolated DC bus for powered device interface circuitry. IC Role / Device Role / Timing Role: Input-stage bridge rectifier handling reverse-polarity protection and transient clamping in IEEE 802.3af/at compliant systems. Use Value: 50A IFSM withstands cable discharge events and hot-swap surges without degradation, improving field reliability in enterprise deployments. |
| Industrial Control Power Supply | Smart Building Sensor Node |
Use Scenario: Providing auxiliary 5V/3.3V rail from 24VAC building management system wiring. IC Role / Device Role / Timing Role: Compact bridge rectifier integrated into ultra-thin DIN-rail mountable power module with minimal board area. Use Value: ABS package and 0.090g weight enable conformal coating compatibility and vibration-resistant mounting in factory automation cabinets. | Use Scenario: Harvesting energy from 12–24V AC HVAC control lines to power wireless sensor transceivers. IC Role / Device Role / Timing Role: Low-VF bridge enabling efficient rectification of low-amplitude, high-impedance AC sources typical in legacy building wiring. Use Value: 40V VRRM matches typical HVAC control voltage envelopes while maintaining margin against induced transients on long wire runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2KBB40 | 40V VRRM, 2A IF, DO-214AA package; higher VF (0.57V typ), RθJA = 90°C/W | Through-hole mounting; less suitable for high-density PoE modules | Prefer SBS24 for SMT volume production requiring moisture level 1 and automated placement |
| ON Semiconductor MB2S | 40V VRRM, 2A IF, ABS package; silicon bridge (not Schottky); VF ≈ 1.1V, TJ max = 125°C | Higher conduction loss and lower thermal limit; unsuitable for thermally constrained LED drivers | Choose SBS24 where low VF and +150°C operation are required for efficiency and ambient resilience |
Compared with VS-2KBB40 and MB2S, the SBS24 delivers superior thermal performance (RθJL = 30°C/W), lower forward drop, and SMT-optimized reliability - making it optimal for space- and thermally constrained PoE and lighting applications where lead-free reflow and moisture immunity are critical.
Availability
SBS24 is available at Aetrix Electronics and suitable for Power over Ethernet injectors, LED driver charging circuits, and industrial control power supplies requiring stable component supply across multi-year production cycles.
Supply support for SBS24 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and communications markets since 1979.
The SBS24 belongs to TSC's Schottky Bridge Rectifier product line, engineered for high-efficiency, high-reliability AC/DC conversion in compact SMT power interfaces - especially where low VF, surge robustness, and automotive-grade variants are needed.
FAQ
What is the maximum junction temperature rating for the SBS24?
The SBS24 has a maximum junction temperature (TJ max) of +150°C, allowing reliable operation in enclosed LED driver housings or automotive ambient environments where passive cooling is limited. This rating is validated per absolute maximum ratings table in the C2103 datasheet revision and applies across the full operating current range up to 2A average forward current.
Does the SBS24 have AEC-Q101 qualification?
The base SBS24 is not AEC-Q101 qualified; however, the SBS24H variant - identical in electrical and thermal specifications - is fully AEC-Q101 qualified and marked with "H" suffix in ordering code. Engineers requiring automotive-grade reliability must specify SBS24H, which undergoes stress testing per AEC-Q101 Rev D for discrete semiconductors.
What does the "ABS" package designation mean for the SBS24?
The ABS package for the SBS24 refers to a surface-mount molded plastic case meeting UL 94V-0 flammability rating, with matte tin-plated leads solderable per J-STD-002 and JESD201 Class 2 whisker resistance. It is distinct from DO-214AA or SMB packages and optimized for automated placement and reflow in high-volume manufacturing.
How does the SBS24 compare to the SBS25 and SBS26 in forward voltage?
The SBS24 specifies a maximum forward voltage (VF) of 0.50 V at 2A and 25°C, lower than the SBS25 (0.50 V max) and SBS26 (0.70 V max). This reflects the trade-off between reverse voltage rating and Schottky barrier height - making the SBS24 optimal for 40V-class applications where lowest conduction loss is prioritized.
What is the surge current rating of the SBS24 and how is it tested?
The SBS24 has a peak forward surge current (IFSM) rating of 50 A, tested using an 8.3 ms single half-sine wave superimposed on rated load, per JEDEC standards. This rating ensures survivability during hot-plug events in PoE systems and inrush currents in LED driver startup, verified in the Absolute Maximum Ratings table of the C2103 datasheet.
SBS24 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 40 V
- Current - Average Rectified (Io):
- 2 A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 A
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- ABS
SBS24 FAQ
1.How can I place an order for SBS24 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBS24 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SBS24 reliable?
The price and inventory of SBS24 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBS24 is usually 5 days.
3.What payment methods are accepted for SBS24?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBS24 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBS24?
SBS24 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBS24 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SBS24?
For technical support, including SBS24 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBS24 requirements.
6.How does Aetrix verify that SBS24 is sourced from the original manufacturer or authorized distributors?
All SBS24 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SBS24 meets industry standards.
7.What is the process for return or replacement of SBS24?
All SBS24 units undergo pre-shipment inspection (PSI). If there is an issue with SBS24, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SBS24 part is unused and in its original packaging.
Return procedure for SBS24:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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