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Taiwan Semiconductor Corporation S1DBH
- Part No.:
- S1DBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S1DBH.pdf
- Description:
- DIODE GEN PURP 200V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
S1DBH from Taiwan Semiconductor is a 1 A, 200 V surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (max 1.1 V at 1 A), and 30 A surge current capability - used in automotive freewheeling and DC-DC converter snubber circuits.
For engineers reviewing the S1DBH datasheet, S1DBH pinout, S1DBH application, or S1DBH equivalent, key selection criteria include repetitive peak reverse voltage (200 V), thermal resistance (30 °C/W), moisture sensitivity level (MSL 1), RoHS/halogen-free compliance, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The S1DBH is a single-die, unidirectional silicon rectifier optimized for high-reliability surface-mount operation. Its glass-passivated junction ensures stable reverse leakage (<5 µA at 25°C, <50 µA at 125°C) and robust surge tolerance under 8.3 ms half-sine wave conditions.
Thermally, it delivers 30 °C/W junction-to-lead resistance and operates across –55°C to +150°C junction temperature range. The DO-214AA (SMB) package supports automated placement and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage the device blocks reliably in circuit |
| IF | 1 A - continuous average forward current rating at TA = 25°C |
| IFSM | 30 A - non-repetitive peak surge current handling for transient protection |
| VF (max) | 1.1 V @ 1 A, 25°C - low conduction loss enabling efficient power conversion |
| IR (max) | 5 µA @ 200 V, 25°C - minimal leakage ensuring stable blocking in high-impedance nodes |
| RθJL | 30 °C/W - thermal resistance enabling direct PCB heat dissipation without heatsink |
| TJ max | +150°C - extended junction temperature range supporting under-hood automotive use |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to higher-potential rail or switching node in snubber/DC-DC applications |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB |
| Glass-passivated junction | Enhanced environmental stability and long-term reverse leakage control vs. epoxy-passivated alternatives |
| MSL Level 1 | No floor life limitation or bake requirement before reflow - simplifies SMT line logistics |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for green manufacturing and end-of-life processing |
| Low VF & high IFSM | Enables compact, thermally efficient designs in space-constrained automotive modules |
Applications
| Automotive Freewheeling | DC-DC Converter Snubber |
|---|---|
Use Scenario: Suppresses inductive kickback in 12 V automotive relay drivers and solenoid control circuits. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current recirculation path during switch-off. Use Value: 1.1 V VF minimizes power loss; 30 A IFSM handles worst-case inductive surges without failure. | Use Scenario: Absorbs switching energy in buck converter MOSFET drain nodes. IC Role / Device Role / Timing Role: Snubber diode clamping voltage spikes to protect power switches. Use Value: 200 V VRRM safely withstands reflected transients; 12 pF CJ limits high-frequency coupling. |
| Car Lighting Power Supply | Industrial AC-DC Input Stage |
Use Scenario: Rectifies 12–24 V AC input in LED headlamp driver modules. IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED strings. Use Value: MSL 1 and AEC-Q101 ensure reliability in vibration-prone lighting housings. | Use Scenario: Front-end rectification in industrial 24 V AC-powered controllers. IC Role / Device Role / Timing Role: Single-phase bridge leg component in compact linear or SMPS inputs. Use Value: DO-214AA footprint enables high-density layout; UL 94V-0 compound meets safety agency requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02 | 1 A, 200 V, TO-277 package (smaller footprint than SMB); VF = 1.05 V typ | Higher thermal density; requires tighter layout spacing | Preferred where board area is constrained and thermal pad access is available |
| SB120 | 1 A, 200 V, DO-214AA (SMB) package; VF = 1.15 V max; no AEC-Q101 qualification | Lacks automotive qualification; suitable only for commercial/industrial environments | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
Compared with STTH1R02 and SB120, the S1DBH uniquely combines AEC-Q101 qualification, MSL 1 handling, and DO-214AA compatibility - making it the only choice for production automotive systems requiring zero-bake assembly and long-term under-hood reliability.
Availability
S1DBH is available at Aetrix Electronics and suitable for automotive freewheeling, DC-DC converter snubbing, and car lighting power supply applications requiring stable component supply and full traceability.
Supply support for S1DBH 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 consumer markets since 1979.
The S1DBH belongs to TSC's AEC-Q101-qualified surface-mount rectifier family, engineered specifically for high-reliability automotive power conversion and protection functions where thermal robustness and process consistency are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for the S1DBH?
The S1DBH has a VRRM rating of 200 V, meaning it can reliably block up to 200 V of reverse voltage in repetitive operation. This value is confirmed in the Absolute Maximum Ratings table on page 2 of the official Taiwan Semiconductor datasheet (Version A2102). Exceeding this voltage risks irreversible breakdown. The S1DBH is part of the S1ABH–S1MBH series, where the letter 'D' directly corresponds to the 200 V rating.
Is the S1DBH qualified for automotive applications?
Yes, the S1DBH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and high-temperature reverse bias (HTRB), confirming suitability for under-hood and other demanding automotive environments. The S1DBH is not just automotive-capable - it is formally certified.
What package type does the S1DBH use, and what are its key mechanical attributes?
The S1DBH uses the DO-214AA (SMB) surface-mount package. Key mechanical attributes include UL 94V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002, polarity indicated by cathode band, and a weight of approximately 0.090 g. The S1DBH's package outline and suggested pad layout are documented on page 5 of the official datasheet.
What is the forward voltage (VF) specification for the S1DBH at rated current?
The S1DBH has a maximum forward voltage of 1.1 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is measured under pulse conditions (PW = 0.3 ms) to avoid self-heating effects. The typical VF is lower, but design margins must be based on the 1.1 V max value specified for the S1DBH.
Does the S1DBH have moisture sensitivity level (MSL) classification, and what does it mean for assembly?
Yes, the S1DBH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to reflow soldering. This simplifies SMT line handling and eliminates moisture-related popcorning risk. The MSL Level 1 designation applies specifically to the S1DBH and is verified in the FEATURES section of the Taiwan Semiconductor datasheet.
S1DBH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- 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:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S1DBH FAQ
1.How can I place an order for S1DBH through Aetrix?
Please submit a Request for Quotation (RFQ) for S1DBH 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 S1DBH reliable?
The price and inventory of S1DBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1DBH is usually 5 days.
3.What payment methods are accepted for S1DBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1DBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1DBH?
S1DBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1DBH 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 S1DBH?
For technical support, including S1DBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1DBH requirements.
6.How does Aetrix verify that S1DBH is sourced from the original manufacturer or authorized distributors?
All S1DBH 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 S1DBH meets industry standards.
7.What is the process for return or replacement of S1DBH?
All S1DBH units undergo pre-shipment inspection (PSI). If there is an issue with S1DBH, 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 S1DBH part is unused and in its original packaging.
Return procedure for S1DBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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