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Taiwan Semiconductor Corporation RS1JALH
- Part No.:
- RS1JALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
RS1JALH.pdf
- Description:
- 250NS, 1A, 600V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:28,000
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Product details
Overview
RS1JALH from Taiwan Semiconductor is a 1A, 600V fast recovery surface-mount rectifier in a Thin SMA package, featuring 250 ns reverse recovery time, 0.97 V forward voltage at 1.0 A and 25°C, and AEC-Q101 qualification for automotive use.
For engineers reviewing the RS1JALH datasheet, RS1JALH pinout, RS1JALH application, or RS1JALH equivalent, key selection criteria include peak reverse voltage (600 V), thermal resistance (RθJL = 19 °C/W), junction temperature range (–55 to +175 °C), and moisture sensitivity level (MSL 1).
Technical Context
The RS1JALH is a single-die, glass-passivated fast recovery rectifier optimized for high-efficiency DC/DC conversion and snubber circuits. Its 600 V VRRM, 250 ns trr, and low-profile Thin SMA package support compact, thermally robust designs in space-constrained automotive and industrial power systems.
It operates across –55 °C to +175 °C junction temperature with 30 A IFSM (8.3 ms) surge capability and exhibits low leakage (≤1 µA at 25°C, ≤33 µA at 125°C), enabling reliable freewheeling in inductive switching applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in high-voltage DC bus or flyback clamp circuits. |
| IF | 1 A continuous - Rated average forward current; determines steady-state power dissipation and heatsink sizing under conduction. |
| trr | 250 ns - Measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables high-frequency switching (>100 kHz) with minimal switching loss. |
| VF | 0.97 V @ 1.0 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in power path design. |
| RθJL | 19 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pad thermal coupling without external heatsink in moderate-power layouts. |
| IR | ≤1 µA @ 25°C - Reverse leakage current; critical for low-power standby modes and precision voltage clamping stability. |
Pinout & Package
Package: Thin SMA (JEDEC DO-221AC variation), low-profile surface-mount case with matte tin-plated leads, cathode indicated by band, MSL 1, weight ≈ 0.029 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; must withstand full IF and transient surges. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail; carries full VRRM during off-state and defines polarity-sensitive placement on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22, supporting under-hood and ADAS power supply designs. |
| Glass passivated junction | Provides stable electrical characteristics and enhanced moisture resistance over standard epoxy passivation, improving long-term parametric drift in humid environments. |
| Low profile Thin SMA package | Height ≤1.45 mm enables integration into ultra-thin power modules and PCBs with tight Z-axis constraints, such as infotainment or body control units. |
| Junction-to-lead thermal resistance = 19 °C/W | Enables efficient heat transfer directly from die to PCB copper pad, reducing need for thermal vias or auxiliary heatsinking in 1–2 W dissipation scenarios. |
Applications
| Automotive DC/DC Converters | Snubber Circuits |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery architectures for ADAS sensors and lighting control. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck converters, handling 1 A continuous output with fast turn-off to minimize ringing. Use Value: 250 ns trr and 600 V VRRM suppress voltage overshoot during MOSFET turn-off, reducing stress on primary-side switches and EMI filter size. | Use Scenario: RCD snubber network across IGBTs or MOSFETs in motor drive inverters and HVAC compressors. IC Role / Device Role / Timing Role: Fast-recovery diode providing low-loss return path for snubber capacitor discharge during switching transitions. Use Value: Low VF (0.97 V) minimizes conduction loss in snubber loop; glass passivation ensures stable trr across lifetime and temperature. |
| Freewheeling Diodes | Industrial Power Supplies |
Use Scenario: Inductive load commutation in solenoid drivers, relay interfaces, and stepper motor H-bridges. IC Role / Device Role / Timing Role: Freewheeling path for stored inductor energy during switch-off, preventing voltage spikes that could damage control ICs. Use Value: 30 A IFSM (8.3 ms) safely absorbs inductive kickback transients; –55 to +175 °C TJ range supports operation in uncooled industrial enclosures. | Use Scenario: Secondary-side rectification in isolated AC/DC adapters and programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Primary rectifier in flyback or forward converter outputs delivering regulated 5–24 V at up to 1 A. Use Value: MSL 1 rating and RoHS/halogen-free compliance meet IPC-610 Class 2/3 assembly requirements; Thin SMA footprint simplifies automated SMT placement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | Same 1 A / 600 V rating, but TO-277 package (higher RθJA = 110 °C/W); VF = 1.15 V @ 1 A, 25°C. | Less suitable for ultra-thin layouts due to 2.3 mm height; higher thermal resistance requires larger copper area or forced air. | Choose STTH1R06U only if board-level mechanical clearance allows taller profile and thermal budget permits higher junction rise. |
| ON Semi MUR160 | 1 A / 600 V, SMA package, but trr = 50 ns (faster), VF = 1.1 V @ 1 A, 25°C; not AEC-Q101 qualified. | Better for high-frequency SMPS (>500 kHz), but lacks automotive qualification and has higher conduction loss. | Select MUR160 where speed outweighs qualification needs and leakage tolerance is relaxed; avoid in safety-critical automotive systems. |
Compared with STTH1R06U and MUR160, the RS1JALH delivers optimal balance of automotive qualification, thermal performance (RθJL = 19 °C/W), and low-profile packaging-making it preferred for space- and reliability-constrained automotive and industrial power rectification.
Availability
RS1JALH is available at Aetrix Electronics and suitable for automotive DC/DC converters, snubber networks, and industrial power supplies requiring stable component supply, AEC-Q101 compliance, and consistent Thin SMA footprint.
Supply support for RS1JALH 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 devices, and automotive-qualified components.
The RS1JALH belongs to TSC's RS1xALH fast recovery rectifier family, designed specifically for high-reliability, high-efficiency power conversion in automotive and industrial environments where thermal robustness and AEC-Q101 validation are mandatory.
FAQ
What is the peak repetitive reverse voltage rating of the RS1JALH?
The RS1JALH has a peak repetitive reverse voltage (VRRM) rating of 600 V. This value is confirmed in the Absolute Maximum Ratings table for the RS1JALH variant and defines the maximum reverse-biased voltage the device can block repeatedly without breakdown. It is critical for selecting appropriate voltage margin in DC bus or clamp circuit designs.
Is the RS1JALH qualified for automotive applications?
Yes, the RS1JALH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the official Taiwan Semiconductor documentation. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive power systems such as body control modules and ADAS power supplies.
What is the reverse recovery time (trr) of the RS1JALH and under what conditions is it measured?
The RS1JALH has a reverse recovery time (trr) of 250 ns, measured under the conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. This parameter is essential for estimating switching losses and voltage overshoot in high-frequency power converters using the RS1JALH as a freewheeling or output rectifier.
What package type does the RS1JALH use and what are its key mechanical attributes?
The RS1JALH uses the Thin SMA package (JEDEC DO-221AC variation), with dimensions of 4.40 × 2.70 × 1.45 mm (L × W × H), matte tin-plated leads, cathode band marking, and moisture sensitivity level (MSL) 1. Its low profile and MSL 1 rating support high-yield, lead-free reflow assembly without baking requirements.
What is the maximum junction temperature and thermal resistance of the RS1JALH?
The RS1JALH has a maximum junction temperature (TJ) of +175 °C and a junction-to-lead thermal resistance (RθJL) of 19 °C/W. These values are specified in the Absolute Maximum Ratings and Thermal Performance tables, respectively, and define the device's thermal limits and ability to conduct heat to the PCB copper pad under continuous 1 A operation.
RS1JALH 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):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1JALH FAQ
1.How can I place an order for RS1JALH through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1JALH 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 RS1JALH reliable?
The price and inventory of RS1JALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1JALH is usually 5 days.
3.What payment methods are accepted for RS1JALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1JALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1JALH?
RS1JALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1JALH 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 RS1JALH?
For technical support, including RS1JALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1JALH requirements.
6.How does Aetrix verify that RS1JALH is sourced from the original manufacturer or authorized distributors?
All RS1JALH 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 RS1JALH meets industry standards.
7.What is the process for return or replacement of RS1JALH?
All RS1JALH units undergo pre-shipment inspection (PSI). If there is an issue with RS1JALH, 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 RS1JALH part is unused and in its original packaging.
Return procedure for RS1JALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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