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Taiwan Semiconductor Corporation TSD2GALH
- Part No.:
- TSD2GALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TSD2GALH.pdf
- Description:
- 2A, 600V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
TSD2GALH from Taiwan Semiconductor is a 2A, 400V repetitive peak reverse voltage glass-passivated ESD-hardened rectifier in Thin SMA package, featuring 0.94V forward voltage at 2A/25°C, 40A surge capability, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the TSD2GALH datasheet, TSD2GALH pinout, TSD2GALH application, or TSD2GALH equivalent, key selection criteria include its 400V VRRM, 15°C/W junction-to-lead thermal resistance, 8kV HBM ESD rating, and Thin SMA mechanical compatibility with automated SMT placement.
Technical Context
This single-die standard recovery rectifier operates across –40°C to +175°C junction temperature range and delivers low conduction loss via 0.94V VF at rated 2A DC current. Its glass passivation ensures stable junction performance under humidity and thermal cycling stress.
The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, with matte tin-plated leads compliant to J-STD-002 solderability standards. Polarity is marked by cathode band on the Thin SMA case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum reverse blocking voltage before breakdown; defines safe operating limit in DC/AC line rectification |
| IF | 2 A - Continuous forward current rating; determines steady-state power dissipation and heatsink sizing |
| IFSM | 40 A - Non-repetitive surge current (8.3 ms); supports inrush current handling in power supplies |
| VF @ 2A, 25°C | 0.94 V - Forward voltage drop; directly impacts conduction loss and thermal design margin |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance; enables accurate lead temperature estimation for PCB copper pad layout |
| ESD Rating (HBM) | ≥8 kV - Human Body Model immunity per AEC-Q101-001 Class H3B; ensures robustness during handling and assembly |
| TJ max | +175 °C - Maximum junction temperature; allows operation in high-ambient automotive engine bay environments |
Pinout & Package
Thin SMA package: surface-mount, single-anode/single-cathode configuration with cathode band marking; JEDEC DO-221AC-compliant outline; 4.40 mm × 2.70 mm × 1.20 mm body dimensions; 0.030 g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side of rectifier circuit; requires adequate trace width for 2A continuous current |
| Cathode | Forward current exit point | Marked by visible band; connects to load/ground side; carries full output current and must be routed with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including under-hood use with guaranteed reliability over temperature and lifetime |
| Glass passivated junction | Prevents moisture ingress and surface contamination, maintaining stable VF and leakage over time and humidity exposure |
| Low VF (0.94 V @ 2A) | Reduces conduction losses by ~15% vs. typical 1.1V rectifiers, lowering thermal stress in compact layouts |
| Moisture sensitivity level 1 | Enables unlimited floor life before reflow; eliminates baking requirement and simplifies SMT production flow |
| Thin SMA package | 0.030 g mass and low profile (1.20 mm height) support lightweight, space-constrained designs in automotive ECUs and industrial controls |
Applications
| Automotive Power Supply Input Stage | Polarity Protection in Industrial Sensors |
|---|---|
Use Scenario: Rectifying 12V/24V battery-fed inputs in engine control units and body electronics modules. IC Role / Device Role / Timing Role: Standard recovery rectifier providing unidirectional current path and reverse polarity blocking. Use Value: AEC-Q101 qualification and 175°C TJ max ensure reliable operation in under-hood ambient up to 125°C. | Use Scenario: Preventing damage from incorrect connection of 2-wire industrial sensors to 24V DC power rails. IC Role / Device Role / Timing Role: Single-diode polarity guard placed in series with sensor power input. Use Value: 0.94V VF minimizes voltage drop across protection element, preserving headroom for sensor regulation. |
| DC-DC Converter Output Rectification | ESD-Sensitive Signal Line Clamping |
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering ≤2A output. IC Role / Device Role / Timing Role: Freewheeling diode conducting during transformer reset phase. Use Value: 40A IFSM withstands transient overload events without failure during startup or fault conditions. | Use Scenario: Protecting microcontroller GPIO pins connected to external connectors exposed to handling ESD. IC Role / Device Role / Timing Role: Low-capacitance (15 pF) clamp diode shunting ESD transients to ground. Use Value: ≥8 kV HBM and ≥10 kV IEC 61000-4-2 contact discharge ratings meet automotive EMC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2H100S | 100V VRRM, 2A, Schottky; lower VF (0.55V), no AEC-Q101 | Not suitable for 400V line rectification; limited to low-voltage DC-DC outputs | Select only when VRRM < 150V and ESD immunity is secondary to efficiency |
| SB240-E3/54 | 40V VRRM, 2A, Schottky; 0.5V VF; no AEC-Q101 or ESD certification | Cannot replace TSD2GALH in any 400V application; lacks automotive qualification and ESD hardening | Use only in non-automotive, low-voltage, cost-sensitive consumer designs |
Compared with STPS2H100S and SB240-E3/54, TSD2GALH uniquely combines 400V blocking, AEC-Q101 compliance, and ≥8kV HBM ESD immunity-making it the only viable option for automotive-grade 2A rectification where reliability and surge robustness are mandatory.
Availability
TSD2GALH is available at Aetrix Electronics and suitable for automotive power supplies, industrial sensor interfaces, DC-DC converter outputs, and ESD-critical signal clamping requiring stable component supply and long-term lifecycle assurance.
Supply support for TSD2GALH 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 computing markets since 1979.
The TSD2xALH series was developed specifically for AEC-Q101-compliant rectification in harsh-environment automotive electronics, emphasizing ESD resilience, thermal robustness, and SMT manufacturability in Thin SMA form factor.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for TSD2GALH?
The TSD2GALH has a VRRM of 400 V, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision B2312. This value defines the highest reverse voltage the device can block continuously without breakdown and must not be exceeded in circuit design. Derating is recommended for reliability in high-temperature or high-humidity environments.
Is TSD2GALH qualified for automotive applications?
Yes, TSD2GALH is AEC-Q101 qualified per test condition H3B (≥8 kV HBM ESD), with full validation across temperature cycling, humidity bias, and mechanical shock. Its 175°C maximum junction temperature and Thin SMA package meet under-hood automotive requirements, making TSD2GALH suitable for engine control units, body controllers, and ADAS power stages.
What is the forward voltage drop (VF) of TSD2GALH at rated current?
TSD2GALH exhibits a typical forward voltage of 0.94 V at 2 A and 25°C, with a maximum of 1.1 V under the same conditions. At elevated junction temperatures (125°C), VF drops to 0.83 V typical, improving conduction efficiency in thermally stressed operation. These values are measured per pulse test (PW = 0.3 ms) as specified in the electrical characteristics table.
Does TSD2GALH have ESD protection, and to what standard?
TSD2GALH provides ≥8 kV human body model (HBM) ESD immunity per AEC-Q101-001 Class H3B, ≥10 kV contact discharge per IEC 61000-4-2, and ≥10 kV contact discharge per ISO 10605 Class L3. These ratings are confirmed in the Immunity to Electrical Static Discharge section of the TSD2GALH–TSD2JALH datasheet version B2312.
What package type does TSD2GALH use, and what are its key mechanical features?
TSD2GALH uses the Thin SMA package (JEDEC DO-221AC variation), measuring 4.40 mm × 2.70 mm × 1.20 mm with matte tin-plated leads. It features UL 94V-0 flammability rating, JESD201 Class 2 whisker resistance, moisture sensitivity level 1, and cathode polarity indicated by a visible band-enabling reliable, high-yield SMT assembly without pre-baking.
TSD2GALH 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:
- 1.1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -40°C ~ 175°C
TSD2GALH FAQ
1.How can I place an order for TSD2GALH through Aetrix?
Please submit a Request for Quotation (RFQ) for TSD2GALH 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 TSD2GALH reliable?
The price and inventory of TSD2GALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSD2GALH is usually 5 days.
3.What payment methods are accepted for TSD2GALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSD2GALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSD2GALH?
TSD2GALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSD2GALH 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 TSD2GALH?
For technical support, including TSD2GALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSD2GALH requirements.
6.How does Aetrix verify that TSD2GALH is sourced from the original manufacturer or authorized distributors?
All TSD2GALH 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 TSD2GALH meets industry standards.
7.What is the process for return or replacement of TSD2GALH?
All TSD2GALH units undergo pre-shipment inspection (PSI). If there is an issue with TSD2GALH, 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 TSD2GALH part is unused and in its original packaging.
Return procedure for TSD2GALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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