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Taiwan Semiconductor Corporation RS2KAH
- Part No.:
- RS2KAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2KAH.pdf
- Description:
- DIODE GEN PURP 800V 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,900
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Product details
Overview
RS2KAH from Taiwan Semiconductor is a 1.5A, 800V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and AEC-Q101 qualification for automotive use in snubber circuits and DC-DC converters.
For engineers reviewing the RS2KAH datasheet, RS2KAH pinout, RS2KAH application, or RS2KAH equivalent, key selection criteria include its 800 V repetitive peak reverse voltage, 50 A surge rating, glass-passivated junction, moisture sensitivity level 1 compliance, and suitability for automated SMT assembly in harsh-environment power conversion designs.
Technical Context
The RS2KAH employs a single-die silicon PN junction with glass passivation to ensure stable operation up to 175°C junction temperature and robust reliability under thermal cycling. Its fast recovery (500 ns) enables high-frequency switching in flyback and forward converter topologies while minimizing switching losses.
Designed for automotive-grade applications, the device meets AEC-Q101 stress test requirements and features matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance - critical for long-term under-hood deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input stages in 400–600 V DC bus systems with safety margin |
| IF | 1.5 A continuous - suitable for medium-power auxiliary supplies and LED drivers |
| IFSM | 50 A (8.3 ms half-sine) - withstands inrush and transient overloads without failure |
| trr | 500 ns - enables efficient operation up to ~200 kHz switching frequency |
| TJ max | 175 °C - allows operation in engine compartment or enclosed industrial enclosures |
| RθJA | 55 °C/W - requires minimal copper area on PCB for thermal management at full load |
| CJ | 50 pF @ 4 V - limits capacitive coupling noise in high-dv/dt gate drive or sensing paths |
Pinout & Package
Package: DO-214AC (SMA), surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-214AC, 4.95 mm × 2.83 mm × 2.30 mm body size; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of bridge or transformer secondary |
| Cathode | Current exit point during forward conduction; marked by band | Connected to output rail or capacitor positive; polarity-critical for rectification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including lighting and body control modules |
| Glass passivated junction | Prevents moisture ingress and metallization corrosion under high humidity/temperature |
| Moisture sensitivity level 1 | No baking required before reflow - compatible with standard SMT lines |
| Halogen-free & RoHS compliant | Meets EU environmental directives and OEM sustainability requirements |
| Fast switching (500 ns) | Reduces reverse recovery loss vs. standard rectifiers in high-frequency SMPS |
Applications
| Automotive Lighting | DC-DC Converter Secondary Side |
|---|---|
Use Scenario: High-brightness LED headlamp driver with buck-boost topology operating in ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: Output rectifier handling 1.5 A continuous current and 800 V transients during load dump events. Use Value: AEC-Q101 qualification and 175°C TJ max ensure functional safety and longevity in under-hood environments. | Use Scenario: Isolated flyback converter powering microcontroller and sensor rails in industrial IoT gateway. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode with low stored charge to minimize switching loss at 250 kHz. Use Value: 500 ns trr and 1.3 V VF reduce conduction and recovery losses, improving efficiency by ~1.2% over standard 1N4007 equivalents. |
| Snubber Network | Automotive Body Control Module |
Use Scenario: RCD snubber across MOSFET drain-source in 12 V to 48 V bidirectional DC-DC stage. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing turn-off energy with minimal tail current. Use Value: Low reverse recovery charge (Qrr) inferred from 500 ns trr and 5 µA IR reduces snubber dissipation and improves MOSFET SOA margin. | Use Scenario: Reverse polarity protection and ESD clamping in 12 V supply input of door module ECU. IC Role / Device Role / Timing Role: Input protection rectifier with 800 V standoff and 50 A surge capability. Use Value: Glass passivation and JESD201 Class 2 whisker resistance prevent field failures due to vibration-induced lead fracture or corrosion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L08U (STMicroelectronics) | Same 800 V VRRM, 1.5 A IF, but 350 ns trr; TO-277 package (flat lead) | Lower recovery time suits higher-frequency (>300 kHz) converters; different footprint requires layout change | Select when faster recovery is prioritized and board space permits TO-277 mounting |
| ES1J (ON Semiconductor) | Same DO-214AC package, 600 V VRRM, 1 A IF, 35 ns trr | Limited to ≤600 V systems; insufficient for 800 V load-dump transients in 24 V automotive | Only acceptable in lower-voltage, cost-sensitive non-automotive applications where 800 V margin is not required |
Compared with STTH1L08U and ES1J, the RS2KAH provides optimal balance of automotive qualification, 800 V robustness, and DO-214AC compatibility - making it preferred for AEC-Q101-compliant 24 V/48 V systems requiring no PCB redesign.
Availability
RS2KAH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary rectification, and snubber network applications requiring stable component supply, AEC-Q101 compliance, and long-term industrial availability.
Supply support for RS2KAH 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 rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The RS2KAH belongs to TSC's RS2x AH fast recovery rectifier family, engineered specifically for high-reliability automotive power conversion where AEC-Q101 qualification, thermal resilience, and consistent SMT manufacturability are mandatory.
FAQ
What is the maximum junction temperature rating for RS2KAH?
The RS2KAH has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version B2304. This allows reliable operation in under-hood automotive environments and enclosed industrial power supplies where ambient temperatures exceed 105°C. The RS2KAH maintains specified electrical performance up to this limit when thermal design adheres to RθJA = 55°C/W.
Is RS2KAH suitable for automotive applications?
Yes, RS2KAH is AEC-Q101 qualified per the manufacturer's documentation, confirming it has passed stress tests for temperature cycling, high-temperature operating life, and mechanical shock required for automotive electronics. Its glass passivation, matte tin plating, and moisture sensitivity level 1 make RS2KAH appropriate for engine control units, lighting modules, and body control systems where long-term reliability under thermal and vibrational stress is essential.
What is the reverse recovery time (trr) of RS2KAH and how is it measured?
The RS2KAH has a reverse recovery time (trr) of 500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet. This value reflects the time required for minority carriers to clear after forward conduction ceases - directly impacting switching loss in high-frequency converters. The RS2KAH's 500 ns trr is confirmed for the RS2KAH and RS2MAH variants only.
Does RS2KAH have halogen-free and RoHS-compliant construction?
Yes, RS2KAH is explicitly stated as halogen-free and RoHS compliant in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and all materials comply with Directive 2011/65/EU. This ensures RS2KAH meets environmental requirements for global automotive and industrial OEMs, and eliminates brominated flame retardants that could degrade under high-temperature reflow or long-term operation.
What package type does RS2KAH use and what are its key mechanical attributes?
RS2KAH uses the DO-214AC (SMA) surface-mount package, with exact dimensions of 4.95 mm × 2.83 mm × 2.30 mm and approximate weight of 0.060 g. It features a cathode band for polarity identification, matte tin-plated leads compliant with J-STD-002, and meets JEDEC DO-214AC standards. The package supports automated placement and reflow soldering without pre-baking due to moisture sensitivity level 1 classification.
RS2KAH 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):
- 800 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):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 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
RS2KAH FAQ
1.How can I place an order for RS2KAH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2KAH 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 RS2KAH reliable?
The price and inventory of RS2KAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2KAH is usually 5 days.
3.What payment methods are accepted for RS2KAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2KAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2KAH?
RS2KAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2KAH 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 RS2KAH?
For technical support, including RS2KAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2KAH requirements.
6.How does Aetrix verify that RS2KAH is sourced from the original manufacturer or authorized distributors?
All RS2KAH 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 RS2KAH meets industry standards.
7.What is the process for return or replacement of RS2KAH?
All RS2KAH units undergo pre-shipment inspection (PSI). If there is an issue with RS2KAH, 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 RS2KAH part is unused and in its original packaging.
Return procedure for RS2KAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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