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Taiwan Semiconductor Corporation HS1BH
- Part No.:
- HS1BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
HS1BH.pdf
- Description:
- 50NS, 1A, 100V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:8,836
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Product details
Overview
HS1BH from Taiwan Semiconductor is a 1A, 100V AEC-Q101-qualified surface-mount rectifier with glass-passivated junction, 30A peak surge rating, and 1.0V forward voltage at 1A/25°C - used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the HS1BH datasheet, HS1BH pinout, HS1BH application, or HS1BH equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (RθJL = 15 °C/W), junction temperature range (–55 to +150 °C), and DO-214AC (SMA) package compatibility with automated placement.
Technical Context
The HS1BH is a single-die, unidirectional silicon rectifier optimized for fast switching in high-efficiency power conversion. Its glass-passivated junction ensures reliability under thermal cycling and humidity exposure, while its low RθJL (15 °C/W) supports sustained 1A conduction on standard PCB copper pads.
Designed for automotive-grade operation, it meets AEC-Q101 stress testing requirements and exhibits low reverse recovery time (≤50 ns) and low leakage (5 µA @ 25°C, 50 µA @ 100°C), enabling stable freewheeling and snubbing in 60 Hz–1 MHz switching topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum non-repetitive reverse voltage before breakdown; defines safe operating limit in flyback or boost diode positions |
| IF | 1 A continuous - rated average forward current at TA = 75°C on 5 mm × 5 mm Cu pad; sets baseline conduction capability |
| IFSM | 30 A - peak surge current for 8.3 ms half-sine; enables robustness against inrush and transient overloads |
| VF | 1.0 V @ 1 A, 25°C - forward drop directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| trr | ≤50 ns - reverse recovery time measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; critical for EMI and efficiency in SMPS >100 kHz |
| RθJL | 15 °C/W - junction-to-lead thermal resistance; allows direct thermal path to PCB copper, reducing need for heatsinking |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must withstand full IF and IFSM |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential rail; blocks up to 100 V reverse bias with ≤5 µA leakage at 25°C |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood environments including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Glass-passivated junction | Eliminates risk of moisture-induced corrosion and leakage drift; extends lifetime in humid or condensing conditions |
| Moisture sensitivity level 1 | No floor-life limitation or baking required before reflow; compatible with standard SMT assembly lines without dry-pack handling |
| Fast switching (trr ≤50 ns) | Reduces switching losses and EMI generation in 100–500 kHz DC-DC stages, especially in synchronous rectifier auxiliary paths |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for industrial and automotive supply chains |
Applications
| Automotive DC-DC Converters | Switch-Mode Lighting Drivers |
|---|---|
Use Scenario: Step-down conversion in 12 V–48 V automotive subsystems (e.g., ADAS camera modules, infotainment USB-C PD). IC Role / Device Role / Timing Role: Freewheeling diode in asynchronous buck topology; handles reverse recovery during high-side FET turn-on. Use Value: 1.0 V VF and ≤50 ns trr minimize conduction and switching losses, improving efficiency above 92% at 500 kHz. | Use Scenario: Constant-current LED driver for interior ambient lighting and exterior DRLs in passenger vehicles. IC Role / Device Role / Timing Role: Output rectifier in flyback or buck-boost LED driver; clamps inductive kick and recirculates current during off-time. Use Value: AEC-Q101 qualification and –55°C to +150°C TJ ensure reliable operation across vehicle cabin and engine bay thermal profiles. |
| Snubber Networks | Industrial Inverters |
Use Scenario: RC snubber across IGBT or MOSFET switches in motor drives and UPS systems. IC Role / Device Role / Timing Role: Fast-recovery clamp diode that absorbs voltage spikes and limits dV/dt during switching transitions. Use Value: Low CJ (20 pF) and fast trr prevent resonance and ringing, reducing EMI filter burden and layout sensitivity. | Use Scenario: Auxiliary power supply rectification in HVAC inverters and servo drive control boards. IC Role / Device Role / Timing Role: Input bridge rectifier or isolated auxiliary supply output rectifier; operates continuously at 1 A with minimal derating. Use Value: RθJL = 15 °C/W enables thermal management using only PCB copper, eliminating discrete heatsinks in space-constrained designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R01AP | 1 A, 100 V, trr = 45 ns, VF = 1.05 V @ 1 A, DO-214AC | Slightly higher VF; same thermal performance and AEC-Q101 grade | Preferred where ST ecosystem integration or dual-sourcing with ST reference designs is required |
| ON Semi MUR110 | 1 A, 100 V, trr = 75 ns, VF = 0.95 V @ 1 A, DO-41 (through-hole) | Slower recovery, lower VF, but through-hole package - not drop-in compatible | Only suitable for legacy through-hole designs or prototyping where reflow compatibility is not needed |
Compared with STTH1R01AP and MUR110, the HS1BH offers the best balance of ultra-fast recovery (≤50 ns), automotive qualification, and surface-mount compatibility - making it optimal for new AEC-Q101-compliant SMT power designs requiring minimal layout change.
Availability
HS1BH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial snubber networks, and LED lighting drivers requiring stable component supply and long-term lifecycle support.
Supply support for HS1BH 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 automotive, industrial, and consumer markets since 1979.
The HS1BH belongs to TSC's AEC-Q101-qualified HS1xH rectifier family, engineered specifically for high-reliability surface-mount power conversion in automotive and industrial environments where thermal stability and fast switching are essential.
FAQ
What is the maximum junction temperature rating for the HS1BH?
The HS1BH has a maximum junction temperature (TJ) of +150°C and a minimum of –55°C. This wide operating range supports deployment in under-hood automotive applications and industrial environments with elevated ambient temperatures. The device maintains specified electrical parameters within this range when mounted on a 5 mm × 5 mm copper pad, leveraging its RθJL = 15 °C/W thermal path. Derating curves in the HS1BH datasheet confirm usable current capacity down to 0.6 A at 125°C ambient.
Is the HS1BH pin-compatible with other devices in the HS1xH series?
Yes - all HS1xH devices, including HS1BH, share identical DO-214AC (SMA) packaging, anode/cathode pinout, and mechanical footprint. Voltage ratings differ (e.g., HS1AH = 50 V, HS1DH = 200 V), but PCB layout, stencil design, and pick-and-place programming remain unchanged across the family. This enables single-board variants and simplified BOM management without layout revision when scaling voltage requirements.
Does the HS1BH meet automotive qualification standards?
Yes, the HS1BH is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge per JEDEC standards. It is rated for use in automotive powertrain, body electronics, and ADAS subsystems. The device's glass-passivated junction and moisture sensitivity level 1 further reinforce its suitability for automotive manufacturing and field reliability.
What is the typical forward voltage of the HS1BH at 1 A and 125°C?
The HS1BH exhibits a typical forward voltage of approximately 0.85 V at 1 A and 125°C, based on the device's forward characteristic curve (Fig.4 in the datasheet). This represents a ~15% reduction from its 25°C value (1.0 V), due to the negative temperature coefficient of silicon PN junctions. Designers should use this value for worst-case thermal loss calculation in high-ambient applications such as engine control units.
Can the HS1BH be used in high-frequency switching applications above 500 kHz?
Yes - the HS1BH's ≤50 ns reverse recovery time and 20 pF junction capacitance make it suitable for switching frequencies up to 1 MHz in hard-switched topologies. Its fast recovery minimizes tail current and associated switching losses, while low CJ reduces capacitive loading on gate drivers. For optimal performance above 500 kHz, pairing with low-inductance PCB layout and appropriate snubbing remains essential - as confirmed by TSC's Fig.10 test circuit and EMI characterization data.
HS1BH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 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:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HS1BH FAQ
1.How can I place an order for HS1BH through Aetrix?
Please submit a Request for Quotation (RFQ) for HS1BH 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 HS1BH reliable?
The price and inventory of HS1BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS1BH is usually 5 days.
3.What payment methods are accepted for HS1BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS1BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HS1BH?
HS1BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HS1BH 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 HS1BH?
For technical support, including HS1BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS1BH requirements.
6.How does Aetrix verify that HS1BH is sourced from the original manufacturer or authorized distributors?
All HS1BH 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 HS1BH meets industry standards.
7.What is the process for return or replacement of HS1BH?
All HS1BH units undergo pre-shipment inspection (PSI). If there is an issue with HS1BH, 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 HS1BH part is unused and in its original packaging.
Return procedure for HS1BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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