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Taiwan Semiconductor Corporation S2BAH
- Part No.:
- S2BAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S2BAH.pdf
- Description:
- 1.5A, 100V, STANDARD RECOVERY RE
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
S2BAH from Taiwan Semiconductor is a 1.5A, 100V surface-mount silicon rectifier diode in DO-214AC (SMA) package, featuring AEC-Q101 qualification, glass passivated junction, and 50A peak surge current capability; used in automotive lighting and DC-DC converters where reliable unidirectional conduction and thermal robustness are required.
For engineers reviewing the S2BAH datasheet, S2BAH pinout, S2BAH application, or S2BAH equivalent, key selection criteria include repetitive peak reverse voltage (100 V), forward voltage drop (≤1.1 V at 1.5 A), junction-to-lead thermal resistance (16 °C/W), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance for automotive-grade production.
Technical Context
The S2BAH is a single-die, standard recovery rectifier with 1500 ns reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A conditions, and exhibits 30 pF junction capacitance at 1 MHz and 4.0 V reverse bias. Its thermal design supports continuous operation up to TJ = 150 °C with RθJA = 53 °C/W.
Designed for surface-mount assembly, the device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-214AC molded case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse voltage before breakdown; defines safe blocking range in DC-DC flyback or snubber circuits. |
| IF | 1.5 A - Continuous average forward current; determines steady-state power handling in automotive LED drivers. |
| IFSM | 50 A - Non-repetitive peak surge current (8.3 ms half-sine); enables survival during load dump transients. |
| VF | ≤1.1 V @ 1.5 A, 25°C - Forward voltage drop; directly impacts conduction loss and thermal rise in high-duty-cycle applications. |
| TJ max | 150 °C - Maximum junction temperature; sets upper limit for thermal design margin in under-hood environments. |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance; critical for estimating die temperature when lead is used as primary heat path. |
| trr | 1500 ns - Reverse recovery time; influences switching losses and EMI in moderate-frequency rectification (e.g., <100 kHz). |
Pinout & Package
Package: DO-214AC (SMA), molded epoxy case with cathode band marking; matte tin-plated leads; weight ≈ 0.060 g; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must withstand 50 A surge without bond wire failure. |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by visible band; carries full reverse voltage stress and defines polarity-sensitive PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST - enables use in engine control and lighting modules. |
| Glass passivated junction | Enhances long-term reliability against humidity and contamination; eliminates need for conformal coating in harsh ambient conditions. |
| MSL Level 1 | No floor life limitation before reflow; supports unlimited storage and standard SMT line integration without baking. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive; satisfies Tier-1 automotive supply chain material declarations. |
| Low VF & high IFSM | Enables efficient 12 V/24 V system rectification while surviving ISO 7637-2 pulse 5a load dump events. |
Applications
| Automotive LED Lighting | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Rectifying switched output in constant-current LED driver for headlamps or DRLs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional current valve providing low-loss conduction and transient overvoltage blocking. Use Value: 100 V VRRM safely handles 24 V system transients; 1.1 V VF minimizes thermal load in sealed lamp housings. | Use Scenario: Secondary-side rectification in isolated 12 V → 5 V buck-derived flyback converter for infotainment power rails. IC Role / Device Role / Timing Role: Standard recovery rectifier converting transformer AC output to regulated DC. Use Value: 50 A IFSM withstands startup surges; DO-214AC footprint allows automated placement alongside SMT controllers. |
| Snubber Network Protection | General-Purpose Industrial Rectification |
Use Scenario: Clamping inductive kickback across relay coils or solenoid drivers in body control modules. IC Role / Device Role / Timing Role: Transient energy dissipation path limiting voltage overshoot during switch-off. Use Value: 1500 ns trr provides adequate timing margin for 10–50 kHz switching; glass passivation ensures stability under repeated stress. | Use Scenario: AC/DC front-end rectification in industrial sensor transmitters operating from 24 VAC supplies. IC Role / Device Role / Timing Role: Single-phase bridge leg component delivering 1.5 A average DC output. Use Value: MSL 1 and J-STD-002 solderability support high-yield manufacturing; 150 °C TJ rating accommodates enclosure temperatures up to 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1L50A | 1.5 A, 100 V Schottky; VF ≈ 0.55 V; no reverse recovery (trr = N/A); TJ max = 150 °C; same DO-214AC package. | Better efficiency in low-VF-critical apps; unsuitable for >125 °C ambient due to leakage rise; not AEC-Q101 qualified. | Select when minimizing conduction loss dominates; verify thermal derating and automotive qualification requirements. |
| SB1100-TB | 1 A, 100 V Schottky; VF ≈ 0.85 V; IFSM = 30 A; DO-214AA (SMB) package; AEC-Q101 qualified. | Lower current rating and surge capability; larger footprint than DO-214AC; higher RθJA limits power density. | Use only if 1 A rating suffices and SMB layout is already established; avoid in 1.5 A continuous or 50 A surge scenarios. |
Compared with STPS1L50A and SB1100-TB, the S2BAH offers balanced trade-offs: AEC-Q101 compliance and 50 A surge capability unmatched by the Schottky alternatives, while maintaining DO-214AC compatibility and proven reliability in automotive thermal cycles - making it preferred for cost-sensitive, thermally demanding rectification where moderate trr is acceptable.
Availability
S2BAH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter output rectification, and snubber network protection requiring stable component supply across production lifecycles.
Supply support for S2BAH 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 S2BAH belongs to TSC's AEC-Q101-qualified surface-mount rectifier family, engineered specifically for automotive power conversion and protection where reliability under thermal cycling, humidity, and electrical stress is mandatory.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for the S2BAH?
The S2BAH has a VRRM rating of 100 V, meaning it can reliably block up to 100 volts of reverse-biased voltage in repetitive operation without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2102) and is specific to the S2BAH variant within the S2xAH series.
Is the S2BAH suitable for automotive applications?
Yes, the S2BAH is AEC-Q101 qualified and explicitly listed for automotive applications including car lighting and DC-DC converters. Its glass passivated junction, MSL Level 1 rating, and operation up to 150 °C junction temperature meet core requirements for under-hood and cabin electronics per industry standards.
What package type does the S2BAH use, and what are its key mechanical features?
The S2BAH uses the DO-214AC (SMA) surface-mount package. Key mechanical features include a UL 94V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002, cathode polarity indicated by a visible band, and a typical weight of 0.060 g - all verified in the Mechanical Data section of the Taiwan Semiconductor S2BAH datasheet.
What is the forward voltage drop (VF) specification for the S2BAH at rated current?
The S2BAH has a maximum forward voltage drop of 1.1 V at IF = 1.5 A and TJ = 25 °C, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents the worst-case conduction loss under nominal operating conditions.
Does the S2BAH have a specified reverse recovery time (trr), and how is it measured?
Yes, the S2BAH has a typical reverse recovery time (trr) of 1500 ns. It is measured under defined conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, using the test circuit shown in Figure 6 of the Taiwan Semiconductor datasheet. This parameter reflects its standard recovery behavior, distinguishing it from ultrafast or Schottky alternatives.
S2BAH 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):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 1.5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S2BAH FAQ
1.How can I place an order for S2BAH through Aetrix?
Please submit a Request for Quotation (RFQ) for S2BAH 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 S2BAH reliable?
The price and inventory of S2BAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2BAH is usually 5 days.
3.What payment methods are accepted for S2BAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2BAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2BAH?
S2BAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2BAH 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 S2BAH?
For technical support, including S2BAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2BAH requirements.
6.How does Aetrix verify that S2BAH is sourced from the original manufacturer or authorized distributors?
All S2BAH 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 S2BAH meets industry standards.
7.What is the process for return or replacement of S2BAH?
All S2BAH units undergo pre-shipment inspection (PSI). If there is an issue with S2BAH, 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 S2BAH part is unused and in its original packaging.
Return procedure for S2BAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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