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Taiwan Semiconductor Corporation HS5A
- Part No.:
- HS5A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
HS5A.pdf
- Description:
- DIODE GEN PURP 50V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,471
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Product details
Overview
HS5A from Taiwan Semiconductor is a 5 A, 50 V glass-passivated surface-mount Schottky rectifier in DO-214AB (SMC) package, featuring low forward voltage drop (1.00 V at 5 A, 25°C), 150 A surge rating, and 60 °C/W junction-to-ambient thermal resistance. It serves as a high-efficiency freewheeling diode in DC-DC converters for telecom power supplies.
For engineers reviewing the HS5A datasheet, HS5A pinout, HS5A application, or HS5A equivalent, key selection criteria include repetitive peak reverse voltage (50 V), forward current rating (5 A), thermal resistance (60 °C/W), reverse recovery time (≤50 ns), and DO-214AB mechanical compatibility with automated SMT assembly.
Technical Context
The HS5A is a single-die, unidirectional silicon rectifier optimized for high-frequency switching applications. Its glass-passivated junction ensures stable leakage performance up to 125°C (IR ≤ 250 µA), and its low-profile DO-214AB package supports high-density PCB layouts.
Designed for operation in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) topologies, the HS5A delivers fast reverse recovery (≤50 ns) and low junction capacitance (80 pF at 4 V), enabling efficient operation in 100–500 kHz SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 5 A - Continuous forward current rating at TA = 75°C, defines maximum steady-state output current capability in buck/boost converters |
| VRRM | 50 V - Maximum repetitive reverse voltage; sets minimum input/output voltage margin for 24 V or 48 V bus applications |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms half-sine); determines robustness against startup inrush or load dump transients |
| VF @ 5A, 25°C | 1.00 V max - Forward voltage drop directly impacts conduction loss and thermal design in high-current paths |
| trr | ≤50 ns - Reverse recovery time enables clean turn-off in high-frequency synchronous rectification and flyback snubber circuits |
| RθJA | 60 °C/W - Junction-to-ambient thermal resistance under standard JEDEC PCB conditions; used to calculate temperature rise at 5 A load |
| CJ @ 4V | 80 pF - Junction capacitance affects EMI generation and switching node ringing in hard-switched topologies |
Pinout & Package
DO-214AB (SMC) package: molded plastic case meeting UL 94V-0, matte tin-plated leads compliant with J-STD-002 solderability, cathode indicated by band, weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to switch node or transformer secondary in flyback/buck configurations; requires low-inductance layout |
| Cathode | Current exit point during forward conduction; polarity-marked terminal | Connected to output capacitor or ground return path; cathode band orientation must match PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable IR ≤ 10 µA at 25°C and ≤ 250 µA at 125°C, reducing standby power loss in always-on systems |
| Low-profile DO-214AB (SMC) package | Height ≤ 2.6 mm allows integration into space-constrained telecom modules and PoE-powered devices |
| J-STD-020 Level 1 moisture sensitivity | Permits unlimited floor life before reflow; eliminates bake requirement and simplifies SMT line logistics |
| RoHS & halogen-free compliance | Fulfills IEC 61249-2-21 and EU RoHS directives for industrial and networking equipment export requirements |
Applications
| Telecom DC-DC Converters | Server VRMs |
|---|---|
Use Scenario: Secondary-side rectification in 48 V input, 12 V/5 V isolated DC-DC modules for base station RF power amplifiers. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward topology, conducting during MOSFET off-time. Use Value: 1.00 V VF minimizes conduction loss at 5 A load, improving efficiency by ≥0.8% over higher-VF alternatives at full load. | Use Scenario: Output rectification in multiphase buck converters supplying CPU core voltage (0.8–1.2 V) in enterprise servers. IC Role / Device Role / Timing Role: Synchronous rectifier replacement where gate drive complexity is avoided; operates in CCM with <50 ns trr. Use Value: 80 pF CJ and ≤50 ns trr reduce switching node oscillation and EMI filter burden compared to slower 600 V diodes. |
| Industrial Motor Drives | LED Driver Power Stages |
Use Scenario: Flyback snubber and clamp diode in 24 V DC-fed brushless motor control inverters with regenerative braking. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during IGBT turn-off. Use Value: 150 A IFSM withstands repeated 100 A transient spikes without degradation, extending system reliability in harsh environments. | Use Scenario: High-frequency rectification in constant-current LED drivers for street lighting (100–200 W). IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback operating at 65–130 kHz. Use Value: Low VF and 60 °C/W RθJA enable compact heatsink-less design at ambient temperatures up to 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-5EWH05FN-M3 | Same DO-214AB package, 5 A/50 V, VF = 0.92 V typ at 5 A, but trr = 35 ns (faster), RθJA = 55 °C/W | Better suited for >300 kHz designs requiring lower switching loss; slightly tighter thermal margin | Select VS-5EWH05FN-M3 when optimizing for ultra-low trr and minimal EMI in resonant converters |
| ON Semiconductor MUR550EG | DO-214AB, 5 A/50 V, but ultrafast recovery (trr = 35 ns), VF = 1.25 V max at 5 A - higher conduction loss | Preferred in noise-sensitive audio power supplies where fast trr reduces audible switching artifacts | Select MUR550EG only if trr-driven EMI reduction outweighs 0.25 V higher VF penalty in thermally constrained layouts |
Compared with VS-5EWH05FN-M3 and MUR550EG, the HS5A offers the best balance of low VF (1.00 V), adequate trr (≤50 ns), and industry-standard thermal resistance (60 °C/W) for cost-sensitive telecom and industrial SMPS where 100–250 kHz operation dominates.
Availability
HS5A is available at Aetrix Electronics and suitable for telecom DC-DC converters, server VRMs, and industrial motor drives requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HS5A 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949-certified production.
The HS5A belongs to TSC's HS5x high-efficiency rectifier family, engineered specifically for high-frequency, high-reliability power conversion in telecom infrastructure and industrial automation equipment.
FAQ
What is the maximum junction temperature rating for the HS5A?
The HS5A has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table. This allows reliable operation in enclosed telecom chassis where ambient temperatures reach 75°C and power dissipation generates additional thermal rise. Derating curves confirm usable current capacity down to 2.5 A at 125°C ambient, ensuring design margin across extended temperature ranges.
Does the HS5A support lead-free reflow soldering processes?
Yes, the HS5A features matte tin-plated leads qualified per J-STD-002 for solderability and meets JEDEC JESD201 Class 2 whisker resistance requirements. Its DO-214AB package is rated for standard Pb-free reflow profiles (peak 260°C, 10 sec), and its Level 1 moisture sensitivity eliminates pre-bake steps - enabling direct placement into high-throughput SMT lines.
How does the HS5A's forward voltage compare across temperature and current conditions?
The HS5A's forward voltage is specified as ≤1.00 V at IF = 5 A and TJ = 25°C. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, typically reaching ~0.85 V at 5 A. This negative temperature coefficient improves thermal stability in parallel configurations and reduces conduction loss at high ambient temperatures.
Can the HS5A be used as a direct replacement for the HS5B in a 100 V design?
No - the HS5A is rated for 50 V VRRM, while the HS5B is rated for 100 V. Substituting HS5A in a 100 V circuit risks catastrophic failure during voltage transients or line surges. The "x" in HS5x explicitly denotes voltage grade; HS5A must only be used in designs where peak reverse voltage remains ≤50 V, such as 24 V or 48 V bus systems.
What is the reverse leakage current specification for the HS5A at elevated temperature?
The HS5A exhibits reverse leakage current (IR) of ≤10 µA at TJ = 25°C and ≤250 µA at TJ = 125°C, measured at rated VRRM (50 V). This low, well-characterized leakage supports energy-efficient standby modes in always-on network equipment and ensures predictable thermal behavior in multi-diode arrays.
HS5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS5A FAQ
1.How can I place an order for HS5A through Aetrix?
Please submit a Request for Quotation (RFQ) for HS5A 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 HS5A reliable?
The price and inventory of HS5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS5A is usually 5 days.
3.What payment methods are accepted for HS5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS5A?
HS5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS5A 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 HS5A?
For technical support, including HS5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS5A requirements.
6.How does Aetrix verify that HS5A is sourced from the original manufacturer or authorized distributors?
All HS5A 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 HS5A meets industry standards.
7.What is the process for return or replacement of HS5A?
All HS5A units undergo pre-shipment inspection (PSI). If there is an issue with HS5A, 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 HS5A part is unused and in its original packaging.
Return procedure for HS5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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