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Taiwan Semiconductor Corporation RS2BAH
- Part No.:
- RS2BAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2BAH.pdf
- Description:
- DIODE GEN PURP 100V 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,656
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Product details
Overview
RS2BAH from Taiwan Semiconductor is a 1.5A, 100V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 50A peak surge current, 175°C max junction temperature, and 150ns reverse recovery time. It serves as a primary AC/DC input rectifier in automotive lighting and DC-DC converters where compact size and thermal robustness are critical.
For engineers reviewing the RS2BAH datasheet, RS2BAH pinout, RS2BAH application, or RS2BAH equivalent, key selection criteria include repetitive peak reverse voltage (100V), forward voltage drop at 1.5A (≤1.3V), reverse leakage at 125°C (≤200µA), thermal resistance (RθJL = 18°C/W), and AEC-Q101 qualification for automotive use.
Technical Context
The RS2BAH employs a glass-passivated silicon junction optimized for fast switching and low conduction loss. Its 150ns reverse recovery time enables high-frequency operation in flyback and buck-derived topologies without excessive switching loss or EMI generation.
Designed for automotive-grade reliability, it meets JESD201 Class 2 whisker resistance, J-STD-020 Level 1 moisture sensitivity, and UL 94V-0 flammability requirements - all verified under AEC-Q101 stress testing including HTGB, HTRB, and TCT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 1.5 A - Continuous average forward current rating at TL = 75°C |
| IFSM | 50 A - Peak surge current capability for 8.3ms half-sine, enabling robust inrush handling |
| trr | 150 ns - Measured reverse recovery time at IF = 0.5A, IR = 1.0A, Irr = 0.25A - defines switching speed limit in SMPS |
| VF | ≤1.3 V - Forward voltage at IF = 1.5A, TJ = 25°C - directly impacts conduction loss and thermal design |
| TJ max | +175°C - Maximum allowable junction temperature - supports operation in under-hood automotive environments |
| RθJL | 18 °C/W - Junction-to-lead thermal resistance - enables direct PCB copper pour heat sinking without heatsink |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-diode configuration with cathode band polarity marking. Weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; requires adequate trace width for 1.5A continuous current |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by visible band; connects to output capacitor or switching node; must maintain clearance per 100V working voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics per stress test requirements |
| Glass passivated junction | Enhances long-term reliability and humidity resistance versus epoxy-passivated alternatives |
| Moisture sensitivity level 1 | Enables direct placement without baking - reduces manufacturing cost and process complexity |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and eliminates lead-free solder joint voiding risk |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for automotive and industrial end equipment |
Applications
| Automotive LED Headlamp Driver | Industrial DC-DC Converter Input Stage |
|---|---|
Use Scenario: Rectifying 12–24V AC from transformer-coupled auxiliary supply in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Primary input rectifier converting transformer secondary AC to unregulated DC bus. Use Value: 150ns trr minimizes switching loss during high-frequency PWM dimming; AEC-Q101 ensures lifetime reliability under thermal cycling. | Use Scenario: Front-end rectification in isolated 48V-to-12V industrial DC-DC modules powering PLC I/O cards. IC Role / Device Role / Timing Role: Unidirectional current path for bridge or center-tap rectification before bulk capacitor filtering. Use Value: RθJL = 18°C/W allows direct thermal coupling to copper pour, eliminating need for thermal vias or external heatsinks. |
| Snubber Network in Flyback Controller | Car Interior Lighting Power Supply |
Use Scenario: Clamp diode in RCD snubber across primary-side MOSFET in 65kHz flyback converter. IC Role / Device Role / Timing Role: Fast-recovery clamp path that resets snubber energy without oscillation or voltage overshoot. Use Value: 150ns trr prevents reverse recovery-induced voltage spikes exceeding MOSFET VDSS rating. | Use Scenario: Output rectification in 12V-to-5V buck-derived power supply for RGB ambient lighting modules. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode conducting during low-side switch off-time. Use Value: ≤1.3V VF at 1.5A reduces conduction loss and improves efficiency over Schottky alternatives at elevated temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | Same DO-214AC package, 1.0A rating, 600V VRRM, 75ns trr, higher VF (1.7V @ 1A) | Better suited for higher-voltage, lower-current snubbers; not rated for 1.5A continuous | Select when VRRM > 400V required and average current < 1.0A |
| ON Semi MUR120 | DO-41 through-hole, 1.0A, 200V, 75ns trr, no AEC-Q101 qualification | Requires manual insertion or wave soldering; unsuitable for automated SMT lines or automotive qualification | Choose only for legacy through-hole designs where rework tolerance outweighs automotive compliance needs |
Compared with STTH1L06S and MUR120, the RS2BAH uniquely balances 1.5A current capacity, 100V blocking, 150ns recovery, and AEC-Q101 qualification - making it optimal for SMT-based automotive lighting and industrial power supplies requiring both reliability and thermal efficiency.
Availability
RS2BAH is available at Aetrix Electronics and suitable for automotive LED drivers, industrial DC-DC converters, and snubber networks requiring stable component supply, AEC-Q101 compliance, and consistent thermal performance across production volumes.
Supply support for RS2BAH 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, specializing in power devices, rectifiers, and protection components.
The RS2BAH belongs to TSC's RS2x series of AEC-Q101-qualified fast recovery rectifiers designed specifically for automotive lighting, body electronics, and industrial power conversion where high surge immunity and thermal resilience are mandatory.
FAQ
What is the maximum junction temperature rating for RS2BAH?
The RS2BAH has a maximum junction temperature (TJ) rating of +175°C, validated per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the datasheet specify usable current vs. lead temperature, with full 1.5A rating maintained up to TL = 75°C.
Is RS2BAH suitable for automotive applications?
Yes, RS2BAH is AEC-Q101 qualified and tested for automotive use, including high-temperature storage, thermal cycling, and humidity bias life. Its glass-passivated junction, matte tin plating, and UL 94V-0 molding compound meet automotive manufacturing and reliability standards. It is widely deployed in car lighting and body control modules.
What is the reverse recovery time (trr) of RS2BAH and how is it measured?
The RS2BAH has a reverse recovery time (trr) of 150 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A at 25°C. This value is confirmed in the Electrical Specifications table and supports efficient operation in switching frequencies up to several hundred kHz in DC-DC and flyback topologies.
Does RS2BAH have moisture sensitivity level (MSL) rating, and what does it mean for assembly?
RS2BAH is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. This eliminates pre-bake steps, reduces floor life management overhead, and supports high-throughput SMT lines - especially valuable for automotive Tier 1 suppliers with strict process controls.
What packaging and reel quantity is available for RS2BAH?
RS2BAH is supplied in DO-214AC (SMA) package on 7,500-unit tape-and-reel format, compatible with standard pick-and-place equipment. The reel complies with EIA-481-D standards, and the device marking "RS2BA" is laser-etched on the cathode-band side for automated optical inspection traceability.
RS2BAH 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:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2BAH FAQ
1.How can I place an order for RS2BAH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2BAH 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 RS2BAH reliable?
The price and inventory of RS2BAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2BAH is usually 5 days.
3.What payment methods are accepted for RS2BAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2BAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2BAH?
RS2BAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2BAH 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 RS2BAH?
For technical support, including RS2BAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2BAH requirements.
6.How does Aetrix verify that RS2BAH is sourced from the original manufacturer or authorized distributors?
All RS2BAH 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 RS2BAH meets industry standards.
7.What is the process for return or replacement of RS2BAH?
All RS2BAH units undergo pre-shipment inspection (PSI). If there is an issue with RS2BAH, 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 RS2BAH part is unused and in its original packaging.
Return procedure for RS2BAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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