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Taiwan Semiconductor Corporation HS1MALH
- Part No.:
- HS1MALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
HS1MALH.pdf
- Description:
- 75NS, 1A, 1000V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:27,875
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Product details
Overview
HS1MALH from Taiwan Semiconductor is a 1000V, 1A high-efficiency surface-mount rectifier diode in a Thin SMA package, featuring glass-passivated junction, AEC-Q101 qualification, and 75ns reverse recovery time. It delivers low forward voltage (1.49V typ @ 1A, 25°C), low junction capacitance (8pF), and operates up to 150°C junction temperature - deployed in automotive DC/DC converters and snubber circuits.
For engineers reviewing the HS1MALH datasheet, HS1MALH pinout, HS1MALH application, or HS1MALH equivalent, key selection criteria include peak reverse voltage rating (1000V), thermal resistance (RθJL = 29°C/W), reverse leakage (≤35µA @ 125°C), and AEC-Q101 compliance for automotive-grade reliability validation.
Technical Context
The HS1MALH is a single-die, unidirectional silicon rectifier optimized for fast switching and low conduction loss in high-voltage DC/DC topologies. Its 1000V VRRM, 75ns trr, and 8pF CJ support efficient operation in flyback and active clamp circuits where voltage stress and capacitive loading must be minimized.
Thermal performance is defined by RθJL = 29°C/W and RθJA = 51°C/W on a 5mm × 5mm Cu pad, enabling stable 1A continuous operation at ambient temperatures up to +105°C when mounted per JEDEC standards. Polarity is marked by cathode band; leads are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rails up to 700V DC in isolated converters without derating |
| IF | 1 A continuous - rated for sustained conduction in compact power stages |
| trr | 75 ns - enables >100 kHz switching with minimal turn-off loss in hard-switched topologies |
| VF | 1.49 V typ @ 1A, 25°C - reduces conduction loss vs. standard FRDs in high-VR applications |
| CJ | 8 pF - minimizes capacitive coupling and EMI in high-dv/dt gate-drive or snubber paths |
| IR | ≤35 µA @ 125°C - ensures low leakage in high-temperature automotive environments |
| TJ max | +150 °C - allows operation in under-hood or enclosed industrial enclosures |
Pinout & Package
Package: Thin SMA (DO-221AC), low-profile surface-mount case with matte tin-plated leads, polarity indicated by cathode band, moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit terminal | Connected to output rail or snubber capacitor; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control and ADAS DC/DC modules |
| Glass-passivated junction | Enhances humidity resistance and long-term reliability in harsh environmental exposure |
| Low profile Thin SMA package | Enables PCB height clearance ≤1.1 mm - critical for ultra-thin automotive modules |
| Fast switching (75 ns trr) | Reduces switching loss in high-frequency flyback and resonant converters |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive DC/DC Converters | Snubber Circuits |
|---|---|
Use Scenario: High-voltage bidirectional DC/DC conversion in 48V mild-hybrid systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asymmetrical half-bridge topology. Use Value: 1000V VRRM withstands transient spikes; 75ns trr maintains efficiency at 200–500 kHz switching. | Use Scenario: RCD snubber across MOSFETs in industrial motor drives. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy during turn-off. Use Value: 8pF CJ limits capacitive loading on gate driver; 1.49V VF minimizes snubber loss. |
| Freewheeling Diodes | Industrial Power Supplies |
Use Scenario: Freewheel path in buck-derived PFC pre-regulators. IC Role / Device Role / Timing Role: Unidirectional current path during low-side switch off-time. Use Value: 1A IF and +150°C TJ enable continuous conduction mode operation at elevated ambient. | Use Scenario: Secondary-side rectification in telecom offline PSUs. IC Role / Device Role / Timing Role: High-voltage output rectifier in dual-output forward converters. Use Value: Glass passivation ensures long-term stability under thermal cycling; RθJL = 29°C/W supports thermal design on limited copper area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | 600V VRRM, 70ns trr, SMA package, non-AEC-Q101 | Limited to ≤600V systems; lacks automotive qualification | Select only for non-automotive 600V designs requiring marginally faster recovery |
| ES1J-M3/81 | 600V VRRM, 35ns trr, SMA package, AEC-Q101 qualified | Higher speed but insufficient VRRM for 1000V bus applications | Preferable for 600V automotive snubbers where ultra-fast recovery dominates voltage rating |
Compared with STTH1R06 and ES1J-M3/81, the HS1MALH uniquely satisfies 1000V system requirements with AEC-Q101 qualification and thermally robust Thin SMA packaging - making it the sole viable option for 48V/12V bi-directional DC/DC and high-transient industrial rectification.
Availability
HS1MALH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and freewheeling diode applications requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for HS1MALH 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 high-reliability power devices and protection components.
The HS1MALH belongs to TSC's HS1xALH high-voltage rectifier family, engineered specifically for AEC-Q101-compliant automotive power conversion and industrial high-voltage rectification where voltage rating, thermal robustness, and fast recovery are jointly critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the HS1MALH?
The HS1MALH has a VRRM of 1000 V, verified per the manufacturer's absolute maximum ratings table. This rating applies continuously at TA = 25°C and derates linearly with increasing junction temperature. The 1000V rating enables use in 700V DC bus systems with adequate safety margin against transients and surges.
Is the HS1MALH qualified for automotive applications?
Yes, the HS1MALH is AEC-Q101 qualified, as explicitly stated in the product features section. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life - confirming suitability for under-hood and chassis-mounted automotive power modules.
What is the forward voltage drop of the HS1MALH at 1A and 25°C?
The HS1MALH exhibits a typical forward voltage (VF) of 1.49 V at IF = 1.0 A and TJ = 25°C, with a maximum of 1.70 V under the same conditions. This value is measured using pulse test conditions (PW = 0.3 ms) and reflects conduction loss relevant to high-frequency switching applications.
Does the HS1MALH have a specified reverse recovery time (trr)?
Yes, the HS1MALH has a reverse recovery time (trr) of 75 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is confirmed in the electrical specifications table and applies to all variants from HS1JALH through HS1MALH.
What package type does the HS1MALH use, and what are its key mechanical attributes?
The HS1MALH uses the Thin SMA (DO-221AC) package: low-profile surface-mount case with matte tin-plated leads solderable per J-STD-002, cathode polarity indicated by band, weight ≈0.029 g, and UL 94V-0 molding compound. Its RθJL = 29°C/W is characterized on a 5mm × 5mm Cu pad per JEDEC standards.
HS1MALH 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):
- 1000 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 1000 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1MALH FAQ
1.How can I place an order for HS1MALH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1MALH 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 HS1MALH reliable?
The price and inventory of HS1MALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1MALH is usually 5 days.
3.What payment methods are accepted for HS1MALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1MALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1MALH?
HS1MALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1MALH 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 HS1MALH?
For technical support, including HS1MALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1MALH requirements.
6.How does Aetrix verify that HS1MALH is sourced from the original manufacturer or authorized distributors?
All HS1MALH 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 HS1MALH meets industry standards.
7.What is the process for return or replacement of HS1MALH?
All HS1MALH units undergo pre-shipment inspection (PSI). If there is an issue with HS1MALH, 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 HS1MALH part is unused and in its original packaging.
Return procedure for HS1MALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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