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Taiwan Semiconductor Corporation S3DBH
- Part No.:
- S3DBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3DBH.pdf
- Description:
- DIODE GEN PURP 200V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
S3DBH from Taiwan Semiconductor is a surface-mount silicon rectifier diode with 200 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF), and 80 A surge capability (IFSM), designed for freewheeling, snubber, and automotive DC-DC converter circuits.
For engineers reviewing the S3DBH datasheet, S3DBH pinout, S3DBH application, or S3DBH equivalent, key selection criteria include its DO-214AA (SMB) package, 1.15 V max forward voltage at 3 A, 1500 ns reverse recovery time, AEC-Q101 qualification, and moisture sensitivity level 1 compliance.
Technical Context
The S3DBH is a single-die, glass-passivated standard recovery rectifier optimized for moderate-speed switching in power conversion and protection circuits. Its 1500 ns trr and 40 pF junction capacitance reflect trade-offs between low conduction loss and manageable reverse recovery behavior.
It operates across –55°C to +150°C junction temperature range, with 10°C/W junction-to-lead thermal resistance and matte tin-plated leads compliant with J-STD-002 solderability. Polarity is marked by a cathode band on the DO-214AA case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 3 A - Continuous average forward current rating at TA = 75°C with PCB heatsinking |
| IFSM | 80 A - Peak non-repetitive surge current handling for 8.3 ms half-sine wave |
| VF (max) | 1.15 V @ 3 A, 25°C - Directly impacts conduction loss and thermal design in high-current paths |
| trr | 1500 ns - Governs switching losses and EMI generation in flyback/freewheeling topologies |
| TJ max | +150°C - Enables operation in under-hood automotive environments without derating |
| MSL | Level 1 (per J-STD-020) - No floor life limitation; supports standard SMT reflow without dry pack |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, molded plastic case with cathode band polarity marking; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode (Lead 2) | Forward current exit / reverse blocking terminal | Marked by band; ties to higher-potential rail or switch drain/source in clamp/snubber circuits |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass passivated junction | Enhances long-term stability and leakage control under humidity and thermal stress |
| Low VF (1.15 V max) | Reduces I²R losses in 3 A continuous conduction paths, easing thermal management |
| High IFSM (80 A) | Withstands transient inrush and inductive kickback without failure in motor or solenoid drivers |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
Applications
| Automotive DC-DC Converters | Car LED Lighting Drivers |
|---|---|
Use Scenario: Step-down buck converter supplying 12 V to 5 V/3.3 V rails for infotainment and body control modules. IC Role / Device Role / Timing Role: Freewheeling diode completing the inductive energy transfer path during high-side switch off-time. Use Value: 3 A IF rating and 80 A IFSM support transient loads; AEC-Q101 ensures reliability over vehicle lifetime. | Use Scenario: Constant-current LED driver with PWM dimming in headlamp or DRL modules. IC Role / Device Role / Timing Role: Snubber diode clamping inductive spikes from boost inductor or relay coils. Use Value: 200 V VRRM safely absorbs >150 V transients; 1500 ns trr balances speed and noise in 10–100 kHz switching. |
| Industrial Power Supplies | Snubber Circuits in Motor Drives |
Use Scenario: Secondary-side rectification in isolated AC-DC adapters for industrial sensors and PLC I/O. IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to regulated DC output. Use Value: DO-214AA package enables automated placement; MSL Level 1 simplifies manufacturing flow. | Use Scenario: RC-snubber network across IGBT or MOSFET switches in BLDC motor inverters. IC Role / Device Role / Timing Role: Fast-recovery path for stored inductive energy during turn-off transitions. Use Value: 1.15 V VF minimizes conduction loss in snubber resistor; glass passivation improves humidity robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L02 | 200 V VRRM, 3 A IF, but 50 ns trr (ultrafast); VF = 1.15 V typical | Better suited for higher-frequency (>100 kHz) switching where reverse recovery loss dominates | Select STTH3L02 only if trr < 200 ns is required; S3DBH preferred for cost-sensitive, thermally constrained 20–60 kHz designs |
| SB320-E3/54 | 200 V VRRM, 3 A IF, 1000 ns trr, VF = 1.1 V max; same DO-214AA package | Lower VF reduces conduction loss slightly; slightly faster recovery than S3DBH | SB320-E3/54 offers marginal performance gain; S3DBH provides AEC-Q101 qualification not present in SB320-E3/54 |
Compared with STTH3L02 and SB320-E3/54, the S3DBH delivers AEC-Q101 assurance and MSL Level 1 handling-critical for automotive production-while maintaining competitive VF and sufficient trr for mid-frequency power conversion, making it optimal for cost-conscious, reliability-driven applications.
Availability
S3DBH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converters, and industrial snubber circuits requiring stable component supply and full traceability.
Supply support for S3DBH 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 S3DBH belongs to TSC's AEC-Q101-qualified SMB rectifier family, engineered specifically for robust, high-volume surface-mount power conversion in harsh-environment applications such as automotive subsystems and industrial controls.
FAQ
What is the maximum junction temperature rating for the S3DBH?
The S3DBH has a maximum junction temperature (TJ max) of +150°C, enabling reliable operation in under-hood automotive environments and thermally demanding industrial power supplies. This rating is validated per AEC-Q101 stress testing and allows for full 3 A forward current derating up to 75°C ambient with appropriate PCB copper area. The S3DBH must not exceed this limit during steady-state or transient conditions.
Is the S3DBH pin-compatible with other devices in the S3xBH series?
Yes, all S3xBH variants-including S3ABH, S3BBH, S3DBH, S3GBH, S3JBH, S3KBH, and S3MBH-share identical DO-214AA (SMB) packaging, pinout, and mechanical dimensions. The only difference is rated VRRM (50 V to 1000 V), so S3DBH can be substituted within the same footprint when 200 V blocking is required. The S3DBH marking code "S3DB" appears on the cathode-banded surface.
Does the S3DBH meet automotive reliability standards?
Yes, the S3DBH is explicitly qualified to AEC-Q101 for discrete semiconductors, covering stress tests including HTGB, HTRB, temperature cycling, and ESD. It also meets J-STD-020 MSL Level 1, eliminating bake requirements before SMT assembly-making the S3DBH suitable for direct use in automotive ECUs, lighting modules, and body electronics without additional qualification.
What is the reverse recovery time (trr) specification for the S3DBH?
The S3DBH has a reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value reflects its standard recovery behavior-optimized for efficiency in 20–100 kHz power stages rather than ultra-high-frequency operation. Designers should account for this trr when calculating switching losses and EMI filtering in buck, flyback, or snubber circuits using the S3DBH.
Can the S3DBH be used in surface-mount reflow processes without moisture preconditioning?
Yes, the S3DBH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and requires no dry-packaging or baking prior to reflow. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during standard lead-free (260°C peak) or tin-lead reflow profiles-confirming the S3DBH's readiness for high-yield automated assembly lines.
S3DBH 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):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3DBH FAQ
1.How can I place an order for S3DBH through Aetrix?
Please submit a Request for Quotation (RFQ) for S3DBH 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 S3DBH reliable?
The price and inventory of S3DBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3DBH is usually 5 days.
3.What payment methods are accepted for S3DBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3DBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3DBH?
S3DBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3DBH 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 S3DBH?
For technical support, including S3DBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3DBH requirements.
6.How does Aetrix verify that S3DBH is sourced from the original manufacturer or authorized distributors?
All S3DBH 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 S3DBH meets industry standards.
7.What is the process for return or replacement of S3DBH?
All S3DBH units undergo pre-shipment inspection (PSI). If there is an issue with S3DBH, 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 S3DBH part is unused and in its original packaging.
Return procedure for S3DBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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