My Inquiry
My Account
Taiwan Semiconductor Corporation HS1DAL
- Part No.:
- HS1DAL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS1DAL.pdf
- Description:
- DIODE GEN PURP 200V 1A THIN SMA
- Quantity:
- Payment:
- Shipping:
Inventory:6,988
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HS1DAL from Taiwan Semiconductor is a 1A, 200V high-efficiency surface-mount rectifier diode in a Thin SMA package, featuring glass-passivated junction, low forward voltage (0.85 V at 1 A, 25°C), 50 ns reverse recovery time, and 29°C/W junction-to-lead thermal resistance. It serves as a freewheeling or output rectifier in compact DC-DC converters.
For engineers reviewing the HS1DAL datasheet, HS1DAL pinout, HS1DAL application, or HS1DAL equivalent, key selection criteria include its 200V repetitive peak reverse voltage, 35A surge current rating, 150°C maximum junction temperature, RoHS-compliant halogen-free construction, and suitability for automated SMT assembly on thermally optimized PCBs.
Technical Context
The HS1DAL is a single-die, unidirectional silicon rectifier optimized for high-frequency switching applications. Its fast 50 ns reverse recovery time and low 0.85 V forward voltage at rated current reduce conduction and switching losses in SMPS topologies.
Thermally, it delivers 29°C/W junction-to-lead resistance when mounted on a 5 mm × 5 mm copper pad, enabling reliable 1A continuous operation up to 150°C junction temperature without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback or buck output stages |
| IF | 1 A - Continuous forward current rating; supports compact power stages up to ~15 W with adequate heatsinking |
| VF @ 1A, 25°C | 0.85 V max - Low conduction loss improves efficiency and reduces thermal load in high-duty-cycle operation |
| trr | 50 ns - Fast recovery minimizes switching loss and EMI in >100 kHz DC-DC converters |
| RθJL | 29 °C/W - Enables direct thermal path to PCB copper; simplifies thermal design vs. higher-Rθ devices |
| IR @ 25°C | 1 µA max - Low leakage preserves efficiency in high-impedance bias or hold-up circuits |
| CJ @ 4V | 20 pF - Low junction capacitance limits displacement current and improves high-frequency rectification fidelity |
Pinout & Package
Package: Thin SMA - Low-profile, surface-mount package with matte tin-plated leads, moisture sensitivity level 1 (per J-STD-020), UL 94V-0 molding compound, and cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential node (e.g., switch node in buck, transformer secondary center-tap) |
| Cathode | Current exit terminal | Marked by band; ties to output rail or filter capacitor positive; carries full load current to load |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances reliability and humidity resistance without requiring conformal coating in industrial environments |
| Low-profile Thin SMA package | Enables <0.9 mm board height in space-constrained modules such as PoE injectors or USB-C PD adapters |
| Fast 50 ns trr | Reduces turn-off loss and ringing in synchronous rectifier-assisted topologies operating above 200 kHz |
| J-STD-002 solderable terminals | Ensures robust reflow joint integrity across lead-free processes without post-solder cleaning |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 5–24 V, 1–10 W flyback or forward converters. IC Role / Device Role / Timing Role: Unidirectional current valve converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 0.85 V VF and 50 ns trr jointly reduce total power loss by ≥15% versus standard FR1 diodes at 100–500 kHz switching frequencies. | Use Scenario: Freewheeling path for inductive loads (e.g., solenoids, relay coils) in half-bridge inverters driving HVAC actuators. IC Role / Device Role / Timing Role: Provides low-loss recirculation path during MOSFET off-time to clamp inductive kickback. Use Value: 35 A IFSM rating withstands transient surges without degradation; 200 V VRRM covers typical 24–48 V bus designs with safety margin. |
| Compact AC-DC Adapter Secondary | Industrial Sensor Power Supply Rectification |
Use Scenario: Output rectifier in ultra-thin wall adapters (<15 mm profile) delivering 5 V/1 A to IoT edge nodes. IC Role / Device Role / Timing Role: High-efficiency, low-VF rectifier minimizing heat generation in sealed plastic enclosures. Use Value: Thin SMA footprint and 0.029 g weight enable mechanical compliance with strict adapter size/weight targets while maintaining 150°C TJ capability. | Use Scenario: Input rectification for 24 V DC-powered analog sensor transmitters in factory automation cabinets. IC Role / Device Role / Timing Role: Converts bridge-rectified AC or noisy DC input into stable local supply for precision op-amps and ADCs. Use Value: 1 µA IR at 25°C prevents signal offset drift in high-impedance bias networks; glass passivation ensures long-term stability in humid control rooms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR120 | Same 1A/200V rating but SMA package (not Thin SMA); 75 ns trr; VF = 0.93 V @ 1A | Higher VF and slower recovery increase conduction + switching loss in >200 kHz designs | Acceptable where board height >1.1 mm and efficiency target ≤88% |
| Vishay VS-1EH02-M3 | Thin SMA package, 1A/200V, VF = 0.82 V @ 1A, trr = 55 ns, RθJL = 30°C/W | Nearly identical thermal and electrical performance; minor VF improvement but slightly higher trr | Drop-in replacement with verified compatibility in existing HS1DAL layouts and thermal models |
Compared with MUR120 and VS-1EH02-M3, the HS1DAL offers the lowest VF-trr product in its class (0.85 V × 50 ns), making it optimal for high-frequency, thermally constrained rectification where both conduction and switching losses must be minimized simultaneously.
Availability
HS1DAL is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and industrial sensor power supply rectification requiring stable component supply and consistent Thin SMA packaging.
Supply support for HS1DAL 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200 qualified lines.
The HS1DAL belongs to TSC's HS1xAL high-efficiency rectifier family, engineered specifically for high-frequency, space-constrained power conversion in consumer, industrial, and communications equipment where low VF, fast trr, and thin-profile packaging are critical.
FAQ
What is the maximum junction temperature rating for HS1DAL?
The HS1DAL has a maximum junction temperature (TJ MAX) of +150°C, validated per absolute maximum ratings in the official datasheet. This allows continuous 1A operation in ambient temperatures up to +85°C when mounted on a 5 mm × 5 mm Cu pad, leveraging its 29°C/W RθJL. Derating curves confirm usable current down to zero at 150°C junction, ensuring robustness in enclosed or high-temperature industrial environments. The HS1DAL maintains specification compliance across this full range.
Does HS1DAL support lead-free reflow soldering?
Yes, the HS1DAL features matte tin-plated leads compliant with J-STD-002 for solderability and qualified for lead-free reflow profiles (peak temperature ≤260°C). Its moisture sensitivity level is rated at Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH without dry-pack requirements. The device has been validated in standard IPC/JEDEC J-STD-020D thermal profiles, and no special pre-bake is needed prior to assembly. The HS1DAL is fully compatible with modern SMT lines.
How does HS1DAL's reverse recovery time compare to other 200V rectifiers?
The HS1DAL specifies a reverse recovery time (trr) of 50 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions - among the fastest in the 1A/200V Thin SMA class. This is 25 ns faster than MUR120 (75 ns) and matches or slightly exceeds VS-1EH02-M3 (55 ns). The low trr directly reduces switching loss and EMI in high-frequency converters. All trr values for HS1DAL are measured and guaranteed per datasheet test conditions, not typical-only.
Is HS1DAL halogen-free and RoHS compliant?
Yes, the HS1DAL is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound contains no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), polybrominated biphenyls (PBBs), or polybrominated diphenyl ethers (PBDEs). Lead content is below 1000 ppm, and all six RoHS substances meet threshold limits. This compliance is documented in TSC's material declarations and applies to all production lots of HS1DAL.
What is the cathode marking convention for HS1DAL?
The cathode of the HS1DAL is marked by a distinct band printed on the body of the Thin SMA package, aligned with the cathode terminal. This band is visible on the top surface and corresponds to the shorter lead when leads are viewed from the front (marking side). Polarity is unambiguous: current flows from anode (unmarked end) to cathode (banded end). The marking conforms to JEDEC standards and is verified in TSC's package outline drawings and visual inspection criteria for HS1DAL.
HS1DAL 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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1DAL FAQ
1.How can I place an order for HS1DAL through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1DAL 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 HS1DAL reliable?
The price and inventory of HS1DAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1DAL is usually 5 days.
3.What payment methods are accepted for HS1DAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1DAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1DAL?
HS1DAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1DAL 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 HS1DAL?
For technical support, including HS1DAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1DAL requirements.
6.How does Aetrix verify that HS1DAL is sourced from the original manufacturer or authorized distributors?
All HS1DAL 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 HS1DAL meets industry standards.
7.What is the process for return or replacement of HS1DAL?
All HS1DAL units undergo pre-shipment inspection (PSI). If there is an issue with HS1DAL, 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 HS1DAL part is unused and in its original packaging.
Return procedure for HS1DAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HS1DAL Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
