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Taiwan Semiconductor Corporation HS1MLH
- Part No.:
- HS1MLH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
HS1MLH.pdf
- Description:
- 75NS, 1A, 1000V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:4,276
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Product details
Overview
HS1MLH from Taiwan Semiconductor is a 1000V, 1A surface-mount high-efficiency rectifier diode in Sub SMA package, featuring 1.70V max forward voltage at 1A and 75ns reverse recovery time, designed for automotive snubber and freewheeling circuits requiring high-voltage ruggedness and low-profile mounting.
For engineers reviewing the HS1MLH datasheet, HS1MLH pinout, HS1MLH application, or HS1MLH equivalent, key selection criteria include peak reverse voltage (1000V), junction temperature rating (−55°C to +150°C), moisture sensitivity level (MSL 1), AEC-Q101 qualification, and Sub SMA thermal resistance (100°C/W).
Technical Context
The HS1MLH implements a single-die, glass-passivated PN junction optimized for high-voltage switching applications. Its 1000V VRRM and 30A IFSM support robust surge handling in automotive transients, while the 75ns trr enables efficient operation in medium-frequency DC-DC converters up to ~100 kHz.
Thermal performance is defined by RθJA = 100°C/W in standard JEDEC PCB layout, and the device operates across −55°C to +150°C junction range with MSL 1 reliability-critical for under-hood automotive modules where solder reflow compatibility and long-term stability are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands repetitive reverse voltage up to 1000V without breakdown, enabling use in 400–800V bus systems with safety margin. |
| IF | 1 A continuous - Rated average forward current supports sustained conduction in power supply output stages and freewheeling paths. |
| VF (max) | 1.70 V @ 1A, 25°C - Low forward drop minimizes conduction loss (1.7W max at full load), improving efficiency in thermally constrained layouts. |
| trr | 75 ns - Fast recovery reduces switching losses and EMI in hard-switched topologies like flyback and boost converters. |
| TJ max | +150 °C - High junction temperature rating allows operation in engine compartment environments without derating below 1A. |
| RθJA | 100 °C/W - Thermal resistance measured on standard 1-in² copper pad; defines required PCB copper area for thermal management. |
| MSL | Level 1 per J-STD-020 - No floor life limitation; suitable for standard SMT assembly without dry pack or baking. |
Pinout & Package
Package: Sub SMA - Low-profile surface-mount package with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Dimensions conform to JEDEC DO-214AC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit (e.g., switch node in buck converter); requires thermal relief pad for soldering reliability. |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; connects to higher-potential rail (e.g., output capacitor positive); carries full reverse voltage during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST-enables use in ASIL-B compliant systems without additional qualification. |
| Glass passivated junction | Provides hermetic protection against humidity and contamination, ensuring stable leakage current (<5 µA @ 25°C) over 15+ year field life. |
| Sub SMA low profile | Height ≤1.1 mm enables placement under connectors or in tight vertical clearances typical in automotive lighting modules and ECUs. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU-supports green manufacturing and end-of-life recycling requirements. |
Applications
| Automotive DC-DC Converters | LED Headlamp Freewheeling |
|---|---|
Use Scenario: Step-down conversion from 12V/48V battery to 5V/3.3V for ADAS sensors and infotainment ECUs. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology, conducting during low-side switch off-time. Use Value: 1000V VRRM provides margin against load dump transients (up to ±120V), while 75ns trr limits switching loss and EMI generation. | Use Scenario: Current recirculation path for high-power LED arrays during PWM dimming in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED driver chokes, clamping back-EMF during MOSFET turn-off. Use Value: 1.70V VF ensures minimal voltage headroom loss, preserving LED forward voltage margin; MSL 1 enables direct reflow without moisture damage risk. |
| Snubber Networks | Industrial AC-DC Input Rectification |
Use Scenario: RC snubber across relay contacts or IGBTs in 24V/48V industrial control panels to suppress voltage spikes. IC Role / Device Role / Timing Role: Voltage-clamping element that conducts only during transient overvoltage events, absorbing energy into the resistor-capacitor network. Use Value: 30A IFSM withstands repeated 8.3ms surge pulses; 1000V rating covers worst-case switching spikes in 400V-class systems. | Use Scenario: Bridge rectifier input stage in DIN-rail mounted 24V/48V power supplies for factory automation equipment. IC Role / Device Role / Timing Role: Single-phase half-wave or full-wave rectifier in low-current auxiliary rails (<1A), replacing larger DO-41 or SMA devices. Use Value: Sub SMA footprint reduces board area by ~40% vs. standard SMA; AEC-Q101 qualification adds long-term reliability assurance beyond industrial grade. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MBR1100TR-M3 | 1000V VRRM, 1A IF, but Schottky architecture → 0.85V VF, no reverse recovery (trr = N/A), TJ max = 125°C | Lower conduction loss but unsuitable for >125°C ambient or high dV/dt snubbers due to higher leakage and thermal limit | Select when efficiency dominates and junction temperature stays <125°C; avoid in under-hood automotive snubbers. |
| ON Semiconductor MUR1100E | 1000V VRRM, 1A IF, 75ns trr, but standard SMA package (not Sub SMA), TJ max = 175°C, no AEC-Q101 | Larger footprint and non-automotive qualified; better thermal capability but lacks automotive process controls and MSL 1 | Select for industrial designs needing higher TJ margin and where board space permits SMA; not recommended for automotive production. |
Compared with VS-MBR1100TR-M3 and MUR1100E, the HS1MLH uniquely combines AEC-Q101 qualification, Sub SMA low-profile packaging, MSL 1, and 150°C junction rating-making it the only option qualified for volume automotive freewheeling and snubber use where space, reliability, and thermal robustness are jointly constrained.
Availability
HS1MLH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED headlamp freewheeling circuits, and industrial snubber networks requiring stable component supply, consistent AEC-Q101 compliance, and long-term lifecycle support.
Supply support for HS1MLH 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 automotive and industrial markets.
The HS1MLH belongs to TSC's HS1xLH high-voltage rectifier family, engineered specifically for AEC-Q101-compliant automotive power conversion and protection-emphasizing ruggedness, thermal stability, and SMT manufacturability in harsh environments.
FAQ
What is the maximum junction temperature rating for HS1MLH?
The HS1MLH has a maximum junction temperature (TJ) rating of +150°C, verified per AEC-Q101 stress testing. This allows uninterrupted 1A operation in under-hood automotive environments where ambient temperatures reach 125°C, provided PCB thermal design maintains junction-to-ambient rise within the 100°C/W RθJA limit. The HS1MLH datasheet specifies derating begins above 75°C ambient.
Is HS1MLH pin-compatible with other parts in the HS1xLH series?
Yes, all HS1xLH variants-including HS1ALH, HS1BLH, and HS1MLH-share identical Sub SMA package dimensions, pinout, and thermal pad layout. The only differences are VRRM (50V to 1000V) and corresponding forward voltage/reverse recovery characteristics. This enables drop-in replacement during design iteration or BOM optimization without PCB changes.
Does HS1MLH meet automotive reliability standards?
Yes, the HS1MLH is AEC-Q101 qualified and tested per the full stress test schedule, including HTGB, HTRB, TC, and UHAST. It also meets J-STD-020 MSL 1, JESD201 Class 2 whisker resistance, and RoHS/halogen-free requirements-making it approved for production use in automotive power modules, lighting, and body control units.
What is the reverse recovery time (trr) of HS1MLH and how is it measured?
The HS1MLH has a maximum reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standard test circuit. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss and EMI in high-frequency DC-DC converters where the HS1MLH is commonly deployed.
Can HS1MLH be used in snubber circuits for IGBTs rated at 600V bus voltage?
Yes, the HS1MLH is suitable for snubber circuits with 600V IGBTs. Its 1000V VRRM provides 67% voltage margin above the 600V bus, accommodating transient overshoots up to 1000V. Combined with 30A IFSM and 75ns trr, the HS1MLH effectively clamps fast-rising voltage spikes while minimizing energy dissipation in the RC network.
HS1MLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1MLH FAQ
1.How can I place an order for HS1MLH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1MLH 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 HS1MLH reliable?
The price and inventory of HS1MLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1MLH is usually 5 days.
3.What payment methods are accepted for HS1MLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1MLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1MLH?
HS1MLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1MLH 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 HS1MLH?
For technical support, including HS1MLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1MLH requirements.
6.How does Aetrix verify that HS1MLH is sourced from the original manufacturer or authorized distributors?
All HS1MLH 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 HS1MLH meets industry standards.
7.What is the process for return or replacement of HS1MLH?
All HS1MLH units undergo pre-shipment inspection (PSI). If there is an issue with HS1MLH, 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 HS1MLH part is unused and in its original packaging.
Return procedure for HS1MLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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