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Taiwan Semiconductor Corporation RS2JALH
- Part No.:
- RS2JALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
RS2JALH.pdf
- Description:
- 250NS, 2A, 600V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
RS2JALH from Taiwan Semiconductor is a 2 A, 600 V fast recovery surface-mount rectifier diode in Thin SMA package, featuring 250 ns reverse recovery time, 1.01 V forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive use. It serves as a freewheeling or snubber diode in DC/DC converters where high efficiency and thermal robustness are required.
For engineers reviewing the RS2JALH datasheet, RS2JALH pinout, RS2JALH application, or RS2JALH equivalent, key selection criteria include its 600 V VRRM, 250 ns trr, glass-passivated junction, JMAX = 175°C rating, and compatibility with automated SMT placement on thin-profile PCBs.
Technical Context
The RS2JALH is a single-die, unidirectional fast recovery rectifier optimized for high-frequency switching applications. Its 250 ns reverse recovery time and low 11 pF junction capacitance minimize switching losses in DC/DC topologies operating up to several hundred kHz.
Thermal performance is defined by RθJL = 16°C/W and RθJA = 73°C/W (on 5 mm × 5 mm Cu pad), enabling reliable 2 A continuous conduction at ambient temperatures up to 100°C without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage; supports 420 V RMS input in AC-DC front-ends or 600 V bus rails in automotive DC/DC stages. |
| IF | 2 A - Continuous forward current rating; delivers full output at TA ≤ 100°C with standard PCB copper area. |
| trr | 250 ns - Reverse recovery time at IF = 0.5 A, IR = 1.0 A; enables efficient operation in 100–500 kHz switching converters. |
| VF @ 2 A, 25°C | 1.01 V - Forward voltage drop; contributes ~2.02 W conduction loss at full load, critical for thermal budgeting. |
| Junction temp. max | 175°C - Maximum allowable junction temperature; supports under-hood automotive environments with margin. |
| CJ @ 1 MHz | 11 pF - Junction capacitance at 4 V reverse bias; limits high-frequency displacement current and EMI generation. |
Pinout & Package
Package: Thin SMA (JEDEC DO-221AC variant), low-profile surface-mount package with matte tin-plated leads, cathode indicated by band, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential node (e.g., switch node in buck converter); requires adequate copper pour for thermal dissipation. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail; polarity must be observed-reverse connection causes catastrophic failure under reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test conditions. |
| Glass passivated junction | Provides hermetic protection against humidity and contaminants, ensuring long-term stability in harsh environments. |
| Low profile Thin SMA package | Height ≤ 1.45 mm enables use in space-constrained modules such as engine control units and ADAS power supplies. |
| Fast recovery (250 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses compared to standard rectifiers. |
Applications
| Automotive DC/DC Converters | Industrial Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery systems for ADAS ECUs and infotainment head units. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulators handling transient loads up to 2 A. Use Value: 250 ns trr and 175°C TJMAX ensure stable operation during cold-crank and load-dump events without derating. | Use Scenario: Clamp voltage spikes across IGBTs or MOSFETs in motor drives and industrial inverters. IC Role / Device Role / Timing Role: Passive snubber diode absorbing inductive kickback energy during switching transitions. Use Value: Low 11 pF CJ and fast 250 ns recovery minimize parasitic oscillation and improve snubber efficiency. |
| High-Efficiency AC-DC Adapters | On-Board Battery Chargers |
Use Scenario: Secondary-side rectification in compact 65 W laptop adapters operating at 100–200 kHz. IC Role / Device Role / Timing Role: Output rectifier in flyback or LLC resonant converters requiring low VF and minimal switching loss. Use Value: 1.01 V VF at 2 A reduces conduction loss vs. Schottky alternatives above 60 V, improving overall efficiency. | Use Scenario: Isolated DC/DC stage in EV on-board chargers converting 400 V battery to 12 V auxiliary supply. IC Role / Device Role / Timing Role: Primary-side clamp or secondary-side freewheeling diode in phase-shifted full-bridge topologies. Use Value: 600 V VRRM and AEC-Q101 qualification support functional safety requirements in ASIL-B systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06S | Same 2 A / 600 V rating; trr = 200 ns (slightly faster); VF = 1.15 V @ 2 A; TO-277 package (higher RθJA). | Higher thermal resistance (90°C/W) limits power density; not AEC-Q101 qualified. | Prefer RS2JALH for automotive or space-constrained designs; STTH2R06S suits cost-sensitive industrial use with larger heatsinking. |
| ES2J | Same 2 A / 600 V; trr = 35 ns (ultrafast); VF = 1.7 V @ 2 A; SMA package but non-AEC-Q101. | Higher VF increases conduction loss; lacks automotive qualification and glass passivation. | Choose RS2JALH when reliability in humid/high-temp environments is mandatory; ES2J fits ultra-high-frequency (>1 MHz) but less demanding applications. |
Compared with STTH2R06S and ES2J, the RS2JALH uniquely combines AEC-Q101 qualification, glass passivation, 250 ns recovery, and Thin SMA packaging-making it the only option qualified for under-hood automotive power conversion where both reliability and profile height are constrained.
Availability
RS2JALH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber circuits, and high-efficiency AC-DC adapters requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for RS2JALH 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 RS2JALH belongs to TSC's RS2xALH fast recovery rectifier family, designed specifically for automotive-grade power conversion and industrial switching applications demanding high reliability, low profile, and AEC-Q101 compliance.
FAQ
What is the peak repetitive reverse voltage rating of the RS2JALH?
The RS2JALH has a peak repetitive reverse voltage (VRRM) rating of 600 V. This value is confirmed in the Absolute Maximum Ratings table for the RS2JALH variant and defines the maximum reverse-bias voltage the device can block repeatedly without breakdown. It is suitable for use in 420 V RMS AC inputs or 600 V DC bus applications. The RS2JALH datasheet specifies this parameter explicitly for the "RS2JALH" row under VRRM.
Is the RS2JALH qualified for automotive applications?
Yes, the RS2JALH is AEC-Q101 qualified, as stated in the FEATURES section of its official datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive power electronics. The RS2JALH marking code "RS2JAH" and qualification status are explicitly tied to the RS2JALH ordering variant in the documentation.
What is the forward voltage drop of the RS2JALH at 2 A and 25°C?
The forward voltage (VF) of the RS2JALH is 1.01 V at 2 A and 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents typical conduction loss at rated current. At 125°C, VF drops to 0.88 V due to semiconductor physics, which is also documented for RS2JALH in the same table.
What is the reverse recovery time (trr) specification for the RS2JALH?
The reverse recovery time (trr) of the RS2JALH is 250 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is explicitly assigned to RS2JALH in the Electrical Specifications table and distinguishes it from lower-voltage variants (e.g., RS2DALH at 150 ns) and higher-voltage variants (e.g., RS2KALH at 500 ns).
What package type does the RS2JALH use, and what are its key mechanical features?
The RS2JALH uses the Thin SMA package (JEDEC DO-221AC variant), with dimensions including length 4.40 mm, width 2.70 mm, and height 1.45 mm max. Key features include matte tin-plated leads compliant with J-STD-002, cathode band polarity marking, moisture sensitivity level 1 (per J-STD-020), and UL 94V-0 molding compound. These attributes are confirmed in the MECHANICAL DATA and PACKAGE OUTLINE DIMENSIONS sections for RS2JALH.
RS2JALH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 11pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2JALH FAQ
1.How can I place an order for RS2JALH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2JALH 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 RS2JALH reliable?
The price and inventory of RS2JALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2JALH is usually 5 days.
3.What payment methods are accepted for RS2JALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2JALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2JALH?
RS2JALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2JALH 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 RS2JALH?
For technical support, including RS2JALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2JALH requirements.
6.How does Aetrix verify that RS2JALH is sourced from the original manufacturer or authorized distributors?
All RS2JALH 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 RS2JALH meets industry standards.
7.What is the process for return or replacement of RS2JALH?
All RS2JALH units undergo pre-shipment inspection (PSI). If there is an issue with RS2JALH, 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 RS2JALH part is unused and in its original packaging.
Return procedure for RS2JALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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