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Taiwan Semiconductor Corporation HS2DALH
- Part No.:
- HS2DALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS2DALH.pdf
- Description:
- 50NS, 2A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
HS2DALH from Taiwan Semiconductor is a 2A, 200V glass-passivated surface-mount Schottky rectifier in a Thin SMA package, featuring 0.87V forward voltage at 2A/25°C, 50ns reverse recovery time, and AEC-Q101 qualification for automotive use.
For engineers reviewing the HS2DALH datasheet, HS2DALH pinout, HS2DALH application, or HS2DALH equivalent, key selection criteria include its 200V VRRM, low-profile Thin SMA footprint, 17°C/W junction-to-lead thermal resistance, and suitability for high-efficiency DC/DC converters and freewheeling circuits requiring fast switching and low conduction loss.
Technical Context
This device is a single-die, unidirectional silicon planar epitaxial rectifier with glass-passivated junction for enhanced reliability and moisture resistance (MSL Level 1). Its 50ns trr and low VF support high-frequency operation in switching power supplies.
The HS2DALH operates across –55°C to +150°C junction temperature range, with thermal performance characterized on a 5mm × 5mm copper pad PCB. It delivers 60A non-repetitive surge capability (8.3ms half-sine) and maintains <1µA reverse leakage at 25°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in snubber or freewheeling paths |
| IF | 2 A - Continuous forward current rating; supports sustained load in compact DC/DC converter outputs |
| trr | 50 ns - Reverse recovery time; enables efficient operation up to ~2 MHz switching frequencies |
| VF @ 2A, 25°C | 0.87 V - Forward voltage drop; contributes to <1.74 W conduction loss at full rated current |
| RθJL | 17 °C/W - Junction-to-lead thermal resistance; allows direct thermal path to PCB copper for passive cooling |
| CJ @ 1MHz, 4V | 32 pF - Junction capacitance; impacts high-frequency switching node ringing and EMI behavior |
Pinout & Package
Package: Thin SMA - Low-profile surface-mount package with matte tin-plated leads, UL 94V-0 molding compound, cathode band polarity marking, and 0.029g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential side of circuit (e.g., switch node in buck converter) |
| Cathode | Current exit terminal | Marked by band; connects to output rail or ground return path; carries full load current |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions |
| Glass-passivated chip junction | Provides hermetic protection against humidity and contaminants, enabling MSL Level 1 handling without dry pack |
| Low profile Thin SMA package | 0.9mm max height enables ultra-thin power designs and compatibility with automated SMT placement equipment |
| Fast switching (50ns trr) | Reduces switching losses in high-frequency topologies such as synchronous rectification and isolated flyback converters |
Applications
| Automotive DC/DC Converters | Industrial Freewheeling Diodes |
|---|---|
Use Scenario: Step-down voltage conversion in 12V/48V automotive subsystems (e.g., ADAS camera modules, infotainment displays). IC Role / Device Role / Timing Role: Output rectifier in synchronous buck converter; conducts during low-side switch off-time. Use Value: AEC-Q101 qualification and 150°C TJMAX ensure operational integrity under engine bay thermal stress. | Use Scenario: Inductive load commutation in industrial motor drivers and solenoid controllers. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy dissipation during MOSFET turn-off. Use Value: 60A IFSM surge rating handles transient inductive kick without failure. |
| Snubber Networks | High-Efficiency AC-DC Adapters |
Use Scenario: Voltage clamping in RCD snubbers across flyback transformer primary windings. IC Role / Device Role / Timing Role: Fast-recovery clamp diode that resets snubber capacitor with minimal delay. Use Value: 50ns trr ensures precise timing alignment and reduces snubber power loss. | Use Scenario: Secondary-side rectification in compact USB-PD and laptop AC-DC adapters. IC Role / Device Role / Timing Role: High-frequency output rectifier replacing conventional Schottky diodes with lower VF. Use Value: 0.87V VF at 2A improves efficiency by ~0.3W vs. higher-VF alternatives at full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SB220-TB | 2A, 20V VRRM; higher VF (~0.95V @ 2A); TO-277 package | Not suitable for 200V blocking; limited to low-voltage DC/DC | Select only for sub-30V systems where space permits larger TO-277 footprint |
| SS22H | 2A, 200V; VF = 0.92V @ 2A; SMA package; no AEC-Q101 qualification | Lacks automotive qualification; same thermal resistance but higher conduction loss | Acceptable for industrial consumer power supplies where automotive reliability not required |
Compared with SB220-TB and SS22H, the HS2DALH uniquely combines 200V VRRM, AEC-Q101 qualification, 50ns trr, and Thin SMA packaging-making it the only option among the three validated for under-hood automotive DC/DC converters requiring both voltage margin and thermal robustness.
Availability
HS2DALH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial freewheeling circuits, and high-efficiency AC-DC adapters requiring stable component supply and long-term production continuity.
Supply support for HS2DALH 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 automotive, industrial, and consumer markets since 1979.
The HS2DALH belongs to TSC's HS2xALH high-efficiency rectifier product line, engineered specifically for surface-mount power conversion applications demanding AEC-Q101 compliance, fast recovery, and low-profile packaging.
FAQ
What is the maximum junction temperature rating for HS2DALH?
The HS2DALH has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official datasheet. This rating enables reliable operation in high-ambient environments such as automotive engine compartments or enclosed industrial power supplies. Derating curves confirm usable current capacity down to 1.2A at 125°C ambient when mounted on a standard 5mm × 5mm Cu pad. The HS2DALH must not exceed this thermal limit to maintain long-term reliability.
Is HS2DALH pin-compatible with other parts in the HS2xALH family?
Yes, all HS2xALH variants-including HS2DALH, HS2GALH, HS2JALH, HS2KALH, and HS2MALH-share identical Thin SMA package dimensions, pinout, and solder pad layout. The only differences are VRRM rating (200V to 1000V) and associated electrical parameters like forward voltage and junction capacitance. Therefore, HS2DALH can be substituted within the same footprint for lower-voltage designs without PCB changes, provided voltage derating and thermal margins are verified.
Does HS2DALH meet RoHS and halogen-free requirements?
Yes, HS2DALH is RoHS compliant and halogen-free per IEC 61249-2-21. The device uses matte tin-plated leads and a UL 94V-0 compliant molding compound. Moisture sensitivity level is rated at MSL Level 1 (unlimited floor life), eliminating bake requirements prior to reflow. These compliance attributes are confirmed in the mechanical data and features section of the official Taiwan Semiconductor datasheet revision B2103.
What is the reverse recovery time (trr) of HS2DALH and how is it measured?
The HS2DALH has a typical reverse recovery time (trr) of 50ns, measured under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This value is specified in the Electrical Specifications table and applies only to the HS2DALH and HS2GALH variants. Longer trr values (75ns) apply to higher-voltage versions (HS2JALH and above) due to process trade-offs. The 50ns trr supports high-frequency switching in DC/DC converters up to ~2 MHz.
Can HS2DALH be used in place of a standard 1N5822 Schottky diode?
No-HS2DALH is not a direct replacement for 1N5822. While both are 2A Schottky rectifiers, the 1N5822 uses DO-201AD packaging (larger, axial-lead), whereas HS2DALH uses Thin SMA (SMD, low-profile). Electrically, HS2DALH offers lower VF (0.87V vs. ~0.9V) and faster trr (50ns vs. ~100ns), but its 200V VRRM matches the 1N5822's rating. PCB redesign is required to accommodate the SMD footprint. HS2DALH is intended for modern SMT-based power designs, not through-hole retrofits.
HS2DALH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 32pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2DALH FAQ
1.How can I place an order for HS2DALH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2DALH 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 HS2DALH reliable?
The price and inventory of HS2DALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2DALH is usually 5 days.
3.What payment methods are accepted for HS2DALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2DALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2DALH?
HS2DALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2DALH 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 HS2DALH?
For technical support, including HS2DALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2DALH requirements.
6.How does Aetrix verify that HS2DALH is sourced from the original manufacturer or authorized distributors?
All HS2DALH 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 HS2DALH meets industry standards.
7.What is the process for return or replacement of HS2DALH?
All HS2DALH units undergo pre-shipment inspection (PSI). If there is an issue with HS2DALH, 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 HS2DALH part is unused and in its original packaging.
Return procedure for HS2DALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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