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Taiwan Semiconductor Corporation S3ABH
- Part No.:
- S3ABH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3ABH.pdf
- Description:
- DIODE GEN PURP 50V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,363
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Product details
Overview
S3ABH from Taiwan Semiconductor is a surface-mount silicon rectifier diode rated for 3 A average forward current and 50 V repetitive peak reverse voltage, featuring glass-passivated junction, low forward voltage drop (max 1.15 V at 3 A), and high surge capability (80 A IFSM). It is AEC-Q101 qualified and used in automotive DC-DC converters and freewheeling circuits.
For engineers reviewing the S3ABH datasheet, S3ABH pinout, S3ABH application, or S3ABH equivalent, key selection criteria include its DO-214AA (SMB) package, 150°C max junction temperature, 10 °C/W junction-to-lead thermal resistance, and compliance with JESD201 Class 2 whisker testing and RoHS/halogen-free requirements.
Technical Context
The S3ABH is a single-die, unidirectional silicon rectifier optimized for high-reliability automotive and industrial power conversion. Its glass-passivated chip junction ensures stable reverse leakage (<10 µA at 25°C) and robust moisture resistance (MSL Level 1).
Designed for automated placement and reflow soldering, it delivers low conduction loss (VF ≤1.15 V @ 3 A) and fast recovery characteristics (trr = 1500 ns), supporting snubber and freewheeling functions where moderate switching speed and high surge tolerance are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF(AV) | 3 A - continuous average forward current under specified thermal conditions |
| IFSM | 80 A - peak non-repetitive surge current capability (8.3 ms half-sine) |
| VF | ≤1.15 V @ 3 A, 25°C - low conduction loss enabling efficient power conversion |
| IR | ≤10 µA @ 50 V, 25°C - minimal reverse leakage preserving system efficiency |
| trr | 1500 ns - reverse recovery time suitable for medium-frequency freewheeling and snubbing |
| RθJL | 10 °C/W - thermal resistance from junction to lead, critical for PCB copper pad design |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode indicated by band on body, matte tin-plated leads, UL 94V-0 molding compound, weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or source in rectification path |
| Cathode | Forward current exit point | Marked by band; connects to higher-potential node and defines polarity in layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Enhances long-term stability of reverse leakage and breakdown voltage under humidity stress |
| Low VF (≤1.15 V) | Reduces conduction losses in 12 V/24 V automotive power rails and DC-DC stages |
| High IFSM (80 A) | Withstands inductive kickback in motor control and relay driver freewheeling paths |
| MSL Level 1 | Enables standard reflow without baking, simplifying SMT manufacturing flow |
Applications
| Automotive DC-DC Converters | Car Lighting Systems |
|---|---|
Use Scenario: Step-down conversion in 12 V to 5 V/3.3 V auxiliary supplies for infotainment and ADAS modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: Low VF minimizes power loss at 3 A load; AEC-Q101 ensures operation across -40°C to +125°C ambient. | Use Scenario: LED headlamp and tail lamp driver circuits requiring reverse polarity protection and flyback energy clamping. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED driver MOSFETs and relay coils. Use Value: 80 A IFSM safely absorbs inductive energy spikes; DO-214AA footprint supports compact board layout. |
| Snubber Networks | Industrial Freewheeling |
Use Scenario: RC-snubber across AC-DC bridge rectifiers or IGBTs in motor drives to suppress voltage transients. IC Role / Device Role / Timing Role: Clamping diode in RCD snubber circuit absorbing turn-off energy. Use Value: 50 V VRRM matches typical 24–48 V bus snubbers; 1500 ns trr balances loss and noise suppression. | Use Scenario: Back-EMF protection in solenoid valves, HVAC actuators, and industrial PLC output modules. IC Role / Device Role / Timing Role: Unidirectional freewheeling path for inductive loads during switch-off. Use Value: Glass passivation prevents parameter drift over 15-year automotive life; MSL Level 1 enables direct SMT integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS3L50A | 3 A, 50 V Schottky; VF ≈ 0.52 V; no reverse recovery (trr = N/A); TJ max = 150°C | Better efficiency in low-VF apps; unsuitable for >125°C junction or high dV/dt snubbers due to higher IR | Prefer when lowest conduction loss is critical and reverse leakage <1 mA is acceptable |
| SB350-E3/54 | 3 A, 50 V Schottky; VF ≈ 0.54 V; IR = 500 µA @ 25°C; DO-214AA package | Higher IR reduces blocking integrity in high-temp environments; same footprint but not AEC-Q101 qualified | Select only for non-automotive industrial use where cost outweighs qualification and leakage constraints |
Compared with STPS3L50A and SB350-E3/54, the S3ABH offers superior high-temperature reverse blocking (IR = 10 µA @ 25°C, 250 µA @ 125°C), AEC-Q101 validation, and ruggedized glass passivation-making it the preferred choice for automotive and mission-critical freewheeling where reliability trumps marginal VF reduction.
Availability
S3ABH is available at Aetrix Electronics and suitable for automotive DC-DC converters, car lighting systems, and industrial freewheeling applications requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for S3ABH 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 S3ABH belongs to TSC's AEC-Q101-qualified SMB rectifier family, engineered specifically for high-reliability power conversion in harsh-environment automotive subsystems and industrial controls.
FAQ
What is the maximum junction temperature rating for the S3ABH?
The S3ABH has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version B2207). This allows reliable operation in under-hood automotive environments and thermally constrained industrial enclosures. Derating curves confirm usable current capacity down to 0 A at 150°C case temperature. The S3ABH must be mounted on adequate copper area to maintain this limit in practice.
Is the S3ABH pin-compatible with other parts in the S3xBH series?
No - the S3ABH shares the DO-214AA (SMB) package and two-terminal anode/cathode configuration with all S3xBH variants, but voltage ratings differ (e.g., S3BBH = 100 V, S3DBH = 200 V). Pinout is identical, but substituting S3ABH for a higher-VRRM variant risks reverse breakdown. Always verify VRRM against circuit requirements before replacement. The S3ABH itself is not a drop-in substitute for any higher-voltage member of the series.
Does the S3ABH meet automotive qualification standards?
Yes - the S3ABH is explicitly AEC-Q101 qualified per the Taiwan Semiconductor datasheet (Version B2207), covering stress tests including HTGB, HTRB, temperature cycling, and mechanical shock. This certification confirms suitability for automotive powertrain, body electronics, and lighting systems. The S3ABH also meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1, supporting full automotive SMT assembly.
What is the reverse recovery time (trr) specification for the S3ABH?
The S3ABH has a typical reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the Electrical Specifications table of the official datasheet (Version B2207). While slower than Schottky alternatives, this trr is appropriate for 50–100 kHz freewheeling and snubber applications where robustness and low leakage outweigh ultrafast switching needs. The S3ABH is not intended for >200 kHz switching topologies.
How is polarity marked on the S3ABH package?
Polarity on the S3ABH is indicated by a visible cathode band on the molded DO-214AA (SMB) body - consistent with industry-standard diode marking. The banded end is the cathode terminal; the opposite end is the anode. This marking aligns with the mechanical drawing and pad layout guide in the Taiwan Semiconductor datasheet (Version B2207). Correct orientation is essential for rectification function and reverse voltage blocking in the S3ABH application circuit.
S3ABH 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):
- 50 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 @ 50 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
S3ABH FAQ
1.How can I place an order for S3ABH through Aetrix?
Please submit a Request for Quotation (RFQ) for S3ABH 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 S3ABH reliable?
The price and inventory of S3ABH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3ABH is usually 5 days.
3.What payment methods are accepted for S3ABH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3ABH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3ABH?
S3ABH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3ABH 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 S3ABH?
For technical support, including S3ABH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3ABH requirements.
6.How does Aetrix verify that S3ABH is sourced from the original manufacturer or authorized distributors?
All S3ABH 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 S3ABH meets industry standards.
7.What is the process for return or replacement of S3ABH?
All S3ABH units undergo pre-shipment inspection (PSI). If there is an issue with S3ABH, 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 S3ABH part is unused and in its original packaging.
Return procedure for S3ABH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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