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Taiwan Semiconductor Corporation S2DAH
- Part No.:
- S2DAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
S2DAH.pdf
- Description:
- 1.5A, 200V, STANDARD RECOVERY RE
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
S2DAH from Taiwan Semiconductor is a surface-mount general-purpose silicon rectifier diode with 200 V repetitive peak reverse voltage (VRRM), 1.5 A average forward current (IF), and 50 A peak surge capability (IFSM), designed for DC-DC converters, automotive lighting, and snubber circuits in industrial and automotive systems.
For engineers reviewing the S2DAH datasheet, S2DAH pinout, S2DAH application, or S2DAH equivalent, key selection criteria include its DO-214AC (SMA) package, AEC-Q101 qualification, 1.1 V max forward voltage at 1.5 A, 5 µA max reverse leakage at 25°C, and 1500 ns reverse recovery time - all critical for high-reliability power conversion and transient suppression.
Technical Context
The S2DAH is a single-die, glass-passivated PN junction rectifier optimized for fast switching and robust thermal performance. Its 16 °C/W junction-to-lead thermal resistance and 53 °C/W junction-to-ambient rating support reliable operation up to 150°C junction temperature under continuous 1.5 A load.
It features low forward voltage drop and high surge current tolerance, making it suitable for clamping, freewheeling, and input rectification where efficiency and transient resilience are required. The device meets J-STD-020 moisture sensitivity level 1 and JESD 201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines safe operating range in DC-DC input stages. |
| IF | 1.5 A - Continuous average forward current rating; determines sustained power-handling capacity in rectifier paths. |
| IFSM | 50 A - Peak one-cycle surge current (8.3 ms half-sine); enables survival during inrush or fault transients. |
| VF (max) | 1.1 V @ 1.5 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in power stages. |
| IR (max) | 5 µA @ 200 V, 25°C - Reverse leakage current affects standby power and voltage hold-up in high-impedance circuits. |
| trr | 1500 ns - Reverse recovery time influences switching losses and EMI in higher-frequency rectification applications. |
| RθJL | 16 °C/W - Junction-to-lead thermal resistance enables effective heat transfer to PCB copper when mounted with adequate pad area. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode indicated by band on body. Matte tin-plated leads, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must be routed with sufficient copper for 1.5 A continuous conduction. |
| Cathode | Forward current exit point / reverse voltage blocking terminal | Marked by band; connects to higher-potential node; serves as reference for voltage clamping and snubber return path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions. |
| Glass passivated junction | Enhances long-term stability and moisture resistance, reducing parameter drift in humid or thermally cycled environments. |
| Low VF (≤1.1 V) | Reduces conduction losses by ~15–20% vs. standard 1N400x series at 1.5 A, improving thermal margin in compact layouts. |
| J-STD-020 Level 1 MSL | Enables unlimited floor life and reflow compatibility without baking, simplifying SMT assembly logistics. |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation required for automotive and industrial safety compliance. |
Applications
| DC-DC Converter Input Rectification | Automotive LED Lighting Supply |
|---|---|
Use Scenario: AC/DC or boost-derived input stage converting 12 V or 24 V battery supply to regulated rail for LED drivers. IC Role / Device Role / Timing Role: Unidirectional current steering and reverse polarity protection at converter input. Use Value: 200 V VRRM provides 2× margin over 24 V automotive transients; 50 A IFSM withstands cold-crank surges. | Use Scenario: High-side switch clamp and flyback energy recirculation in constant-current LED driver modules. IC Role / Device Role / Timing Role: Snubber diode absorbing inductive kickback from MOSFET gate drivers or buck inductors. Use Value: 1500 ns trr balances switching speed and EMI; glass passivation ensures longevity under thermal cycling in headlamp housings. |
| Snubber Network Protection | General-Purpose Power Rectification |
Use Scenario: RC-snubber across relay coils, solenoid drivers, or IGBT collectors in engine control units. IC Role / Device Role / Timing Role: Freewheeling path for stored inductive energy during turn-off transitions. Use Value: 1.5 A IF and 50 A IFSM sustain repeated transient absorption without degradation; DO-214AC footprint supports automated placement. | Use Scenario: Low-cost AC line rectification in auxiliary power supplies for infotainment or body control modules. IC Role / Device Role / Timing Role: Half-wave or full-wave bridge leg providing unidirectional DC output. Use Value: AEC-Q101 qualification and 150°C TJ rating ensure operation across under-hood temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1 A IF, 50 ns trr, TO-277 package | Higher voltage rating but lower current and faster recovery; requires different layout and thermal design | Preferred where higher reverse voltage margin or faster switching is needed, not a direct replacement for S2DAH's 200 V/1.5 A balance |
| ON Semi MUR120 | 200 V VRRM, 1 A IF, 75 ns trr, DO-41 package | Lower current rating and through-hole mounting; significantly faster recovery but reduced surge capability | Acceptable for low-power, space-constrained designs where 1 A suffices and through-hole assembly is acceptable |
Compared with STTH1L06S and MUR120, the S2DAH uniquely delivers 1.5 A continuous current, AEC-Q101 qualification, and DO-214AC SMT compatibility in a 200 V rating - making it optimal for automotive-grade, medium-power rectification where reliability and manufacturability are jointly prioritized.
Availability
S2DAH is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED lighting, and snubber networks requiring stable component supply, automotive qualification, and surface-mount manufacturability.
Supply support for S2DAH 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, TVS diodes, and MOSFETs for industrial and automotive markets.
The S2DAH belongs to TSC's S2xAH family of AEC-Q101-qualified surface-mount rectifiers engineered for high-reliability power conversion in automotive electronics, particularly where thermal robustness, surge immunity, and automated assembly are essential.
FAQ
What is the maximum junction temperature rating for S2DAH?
The S2DAH has a maximum junction temperature (TJ) rating of +150°C, verified per AEC-Q101 stress testing. This allows continuous operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the datasheet define safe IF limits above 25°C ambient, and the 16 °C/W RθJL supports effective heat transfer to PCB copper when using recommended pad layout. S2DAH maintains stable electrical parameters within this range.
Is S2DAH compatible with lead-free reflow soldering processes?
Yes, S2DAH is fully compatible with lead-free reflow soldering per J-STD-020. It is rated MSL Level 1, meaning unlimited floor life and no baking requirement prior to assembly. Matte tin-plated leads meet J-STD-002 solderability requirements, and the UL 94V-0 molding compound withstands peak reflow temperatures up to 260°C. S2DAH has been validated in standard Pb-free profiles used for DO-214AC packages.
What does the marking code 'S2DA' on the S2DAH device indicate?
The marking code 'S2DA' on the S2DAH body identifies it as the 200 V variant within the S2xAH rectifier family. Per the datasheet, 'S2AA' = 50 V, 'S2BA' = 100 V, 'S2DA' = 200 V, and so on. The 'H' suffix denotes tape-and-reel packaging (7,500 pcs/reel). This marking is laser-etched on the cathode-banded end and aligns with industry-standard DO-214AC identification practices. S2DAH is the full orderable part number corresponding to that marking.
How does the reverse recovery time of S2DAH affect its use in switching applications?
S2DAH has a typical reverse recovery time (trr) of 1500 ns, classifying it as a general-purpose (not ultrafast) rectifier. In switching applications below ~50 kHz - such as automotive DC-DC pre-regulators or LED driver snubbers - this trr introduces minimal additional loss or EMI. However, it is not recommended for >100 kHz hard-switched topologies where faster diodes like MUR or STTH series would reduce switching losses. S2DAH's trr is consistent with its role in robust, cost-effective power handling rather than high-frequency optimization.
Does S2DAH meet halogen-free and RoHS requirements?
Yes, S2DAH complies with both RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. The molding compound contains no brominated flame retardants, chlorine, fluorine, iodine, or bromine above threshold limits. All plating, die attach, and encapsulation materials have been certified by Taiwan Semiconductor's material declaration system. S2DAH carries full compliance documentation available upon request, supporting environmental compliance for automotive and industrial OEMs.
S2DAH 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):
- 200 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 @ 200 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
S2DAH FAQ
1.How can I place an order for S2DAH through Aetrix?
Please submit a Request for Quotation (RFQ) for S2DAH 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 S2DAH reliable?
The price and inventory of S2DAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2DAH is usually 5 days.
3.What payment methods are accepted for S2DAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2DAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2DAH?
S2DAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2DAH 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 S2DAH?
For technical support, including S2DAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2DAH requirements.
6.How does Aetrix verify that S2DAH is sourced from the original manufacturer or authorized distributors?
All S2DAH 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 S2DAH meets industry standards.
7.What is the process for return or replacement of S2DAH?
All S2DAH units undergo pre-shipment inspection (PSI). If there is an issue with S2DAH, 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 S2DAH part is unused and in its original packaging.
Return procedure for S2DAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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