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Taiwan Semiconductor Corporation HS2GAL
- Part No.:
- HS2GAL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS2GAL.pdf
- Description:
- DIODE GEN PURP 400V 2A THIN SMA
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
HS2GAL from Taiwan Semiconductor is a 2 A, 400 V glass-passivated surface-mount fast recovery rectifier in Thin SMA package, featuring 0.99 V forward voltage at 2 A/25°C, 50 ns reverse recovery time, and 25 pF junction capacitance - deployed in DC-DC converters and switching-mode inverters.
For engineers reviewing the HS2GAL datasheet, HS2GAL pinout, HS2GAL application, or HS2GAL equivalent, key selection criteria include peak reverse voltage (400 V), thermal resistance (RθJL = 17 °C/W), junction temperature range (–55 to +150 °C), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
This single-die, unidirectional fast recovery rectifier uses glass-passivated PN junction technology to achieve low conduction loss and rapid carrier recombination. Its 50 ns trr and 0.99 V VF at 2 A/25°C support high-frequency switching up to several hundred kHz in isolated and non-isolated topologies.
The Thin SMA package enables automated placement with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Thermal performance is characterized on a 5 mm × 5 mm Cu pad PCB, delivering RθJA = 53 °C/W and RθJC = 21 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback snubber or freewheeling paths |
| IF | 2 A continuous average forward current - supports sustained power delivery in 12–48 V output DC-DC stages |
| trr | 50 ns - enables efficient operation at switching frequencies up to ~500 kHz without excessive switching loss |
| VF @ 2 A, 25°C | 0.99 V (max 1.30 V) - determines conduction loss and thermal rise in high-duty-cycle applications |
| CJ @ 1 MHz, 4 V | 25 pF - limits capacitive coupling noise and affects EMI filter design in high-dv/dt environments |
| RθJL | 17 °C/W - enables direct thermal path to PCB copper, critical for compact layout without heatsinks |
| Mechanical Package | Thin SMA - low-profile (1.1 mm max height), JEDEC-standard SMD footprint compatible with reflow and wave soldering |
Pinout & Package
Thin SMA package: cathode-indicated surface-mount diode with two terminals - anode (A) and cathode (K). Polarity marked by molded cathode band. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode (K) | Forward current exit / reverse-blocking terminal | Connected to output rail or filter capacitor; withstands up to 400 V reverse bias during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| Fast recovery (50 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses in hard-switched SMPS designs |
| Low profile Thin SMA | Enables <1.1 mm board height - essential for ultra-thin power adapters and space-constrained IoT modules |
| J-STD-020 Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT line logistics |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in 24 V/2 A isolated flyback or forward converter powering industrial PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional current steering device converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 0.99 V VF minimizes conduction loss at full load; 50 ns trr prevents shoot-through in synchronous rectifier gate drive timing margins. |
Use Scenario: Freewheeling path across inductive motor windings in 48 V BLDC inverter half-bridge leg. IC Role / Device Role / Timing Role: Clamp diode providing low-impedance return path for inductive kickback during MOSFET turn-off. Use Value: 400 V VRRM safely blocks transient spikes up to 350 V; 120 A IFSM (1 ms) handles short-circuit surge currents. |
| AC-DC Adapter Secondary Rectification | LED Driver Constant-Current Loop |
Use Scenario: Output rectification in compact 12 V/1.5 A wall adapter for smart home sensors. IC Role / Device Role / Timing Role: Main power conversion diode delivering stable DC after transformer isolation and filtering. Use Value: Thin SMA package fits tight 12 mm × 12 mm board area; RθJL = 17 °C/W allows natural convection cooling without heatsink. |
Use Scenario: High-side current sense path rectifier in constant-current LED driver with PWM dimming. IC Role / Device Role / Timing Role: Precision rectifier enabling accurate current measurement during both PWM on/off phases. Use Value: Low 25 pF CJ avoids signal distortion at 1–10 kHz PWM frequencies; 1 µA max IR ensures minimal leakage error at 400 V bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | 400 V VRRM, 2 A IF, 50 ns trr, but TO-220AC package (not SMD); higher RθJA = 70 °C/W | Requires through-hole mounting and heatsinking; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or higher surge robustness (IFSM = 140 A) is prioritized over board space |
| MBR240 | 40 V VRRM, Schottky architecture, 0.52 V VF - lower loss but insufficient voltage rating for HS2GAL's 400 V use cases | Only viable in low-voltage (<60 V) DC-DC outputs; cannot replace HS2GAL in 400 V blocking roles | Consider only for 12–24 V systems where ultra-low VF outweighs voltage margin requirements |
Compared with STTH2R04 and MBR240, HS2GAL uniquely delivers 400 V SMD fast recovery performance in a low-profile Thin SMA package with J-STD-020 Level 1 handling - making it optimal for space-constrained, high-reliability industrial power supplies where voltage rating, thermal efficiency, and manufacturability must coexist.
Availability
HS2GAL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for HS2GAL 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The HS2GAL belongs to TSC's HS2xAL fast recovery rectifier family, engineered specifically for high-efficiency, high-frequency switching power supplies where low VF, fast trr, and robust thermal performance are critical.
FAQ
What is the maximum junction temperature rating for HS2GAL?
The HS2GAL has a maximum junction temperature (TJ) of +150 °C and a minimum of –55 °C. This wide operating range allows reliable deployment in industrial environments with ambient temperatures up to +85 °C when mounted on a 5 mm × 5 mm Cu pad, leveraging its RθJA = 53 °C/W thermal resistance. The HS2GAL maintains specified electrical parameters across this full range.
Does HS2GAL support automated SMT placement?
Yes, HS2GAL is designed for automated placement with its Thin SMA package, matte tin-plated leads, and J-STD-020 Level 1 moisture sensitivity rating - meaning no baking is required prior to reflow. Its standardized footprint and low profile (1.1 mm max height) ensure compatibility with high-speed pick-and-place equipment and standard reflow profiles.
What is the reverse recovery time (trr) of HS2GAL and under what conditions is it measured?
The HS2GAL has a reverse recovery time (trr) of 50 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the official TSC datasheet Version C2103 and reflects performance under typical switching conditions in DC-DC converters. It remains stable across –55 to +125 °C junction temperature.
How does the forward voltage of HS2GAL vary with temperature and current?
At 2 A and 25 °C, HS2GAL exhibits VF = 0.99 V (typical) and ≤1.30 V (max); at 2 A and 125 °C, VF drops to ≤0.96 V due to negative temperature coefficient of silicon PN junctions. This reduction lowers conduction loss at elevated temperatures - a key advantage in thermally dense power designs using HS2GAL.
Is HS2GAL RoHS and halogen-free compliant?
Yes, HS2GAL is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated to satisfy J-STD-002 solderability requirements. These compliance attributes are verified in TSC's official documentation and supported by material declarations.
HS2GAL 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):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS2GAL FAQ
1.How can I place an order for HS2GAL through Aetrix?
Please submit a Request for Quotation (RFQ) for HS2GAL 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 HS2GAL reliable?
The price and inventory of HS2GAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2GAL is usually 5 days.
3.What payment methods are accepted for HS2GAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2GAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS2GAL?
HS2GAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS2GAL 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 HS2GAL?
For technical support, including HS2GAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2GAL requirements.
6.How does Aetrix verify that HS2GAL is sourced from the original manufacturer or authorized distributors?
All HS2GAL 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 HS2GAL meets industry standards.
7.What is the process for return or replacement of HS2GAL?
All HS2GAL units undergo pre-shipment inspection (PSI). If there is an issue with HS2GAL, 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 HS2GAL part is unused and in its original packaging.
Return procedure for HS2GAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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