Taiwan Semiconductor Corporation RS1JL
- Part No.:
- RS1JL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
RS1JL.pdf
- Description:
- 250NS, 0.8A, 600V, FAST RECOVERY
- Quantity:
- Payment:

- Shipping:

Inventory:5,760
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Product details
Overview
RS1JL from Taiwan Semiconductor is a fast recovery surface-mount rectifier diode with 600 V repetitive peak reverse voltage (VRRM), 0.8 A average forward current (IF), and 250 ns reverse recovery time (trr), designed for high-frequency switching in DC-DC converters and SMPS power stages.
For engineers reviewing the RS1JL datasheet, RS1JL pinout, RS1JL application, or RS1JL equivalent, key selection factors include its Sub SMA package compatibility, 30 A non-repetitive surge rating, 1.3 V max forward voltage at 0.8 A, moisture sensitivity level 1, and RoHS/halogen-free compliance for automated SMT assembly.
Technical Context
The RS1JL operates as a single-die, unidirectional silicon rectifier with glass-passivated junction for enhanced reliability and thermal stability up to 150 °C junction temperature. Its fast recovery behavior (250 ns) enables efficient operation in 50–500 kHz switching topologies without significant switching loss penalties.
It features a cathode-banded polarity indicator, matte tin-plated leads compliant with J-STD-002 solderability, and UL 94V-0 molding compound. Thermal resistance values are RθJL = 32 °C/W and RθJA = 105 °C/W under standard PCB mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse blocking voltage; defines safe operating range in bridge or flyback clamp circuits |
| IF | 0.8 A - continuous average forward current at TA = 75°C; determines steady-state power handling in low-power SMPS outputs |
| trr | 250 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables stable operation in high-frequency converters without excessive ringing |
| VF | ≤1.3 V @ 0.8 A, TJ = 25°C - forward conduction loss directly impacts efficiency and thermal rise in output rectification |
| IR | ≤5 µA @ VR = 600 V, TJ = 25°C - low leakage preserves regulation accuracy in high-impedance feedback paths |
| RθJL | 32 °C/W - junction-to-lead thermal resistance; critical for estimating die temperature rise under lead-mounted heatsinking |
Pinout & Package
Package: Sub SMA - compact surface-mount outline with cathode band marking, UL 94V-0 rated epoxy, and JESD201 Class 2 whisker-resistant matte tin leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output filter capacitor positive rail or load return path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances humidity resistance and long-term reliability in humid industrial environments without hermetic sealing |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; supports direct placement in standard SMT lines without dry-pack handling |
| Fast recovery (250 ns) | Reduces switching losses and EMI generation compared to standard rectifiers in 100–300 kHz power stages |
| RoHS and halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; suitable for consumer electronics and export-compliant designs |
Applications
| AC-DC Adapter Output Rectification | Isolated DC-DC Converter Secondary Side |
|---|---|
Use Scenario: 12 V/0.5 A output stage of wall-wart adapter using flyback topology with 65 kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency AC from transformer secondary to regulated DC. Use Value: RS1JL's 600 V VRRM safely withstands reflected voltage spikes; 250 ns trr minimizes switching loss and improves efficiency over 1N4007-class parts. | Use Scenario: 5 V/0.8 A isolated auxiliary supply in telecom power module with synchronous rectification not implemented. IC Role / Device Role / Timing Role: Uncontrolled rectifier providing bias power to control ICs and gate drivers on secondary side. Use Value: RS1JL's 0.8 A IF rating matches typical auxiliary load; Sub SMA footprint allows dense layout without thermal vias. |
| LED Driver Constant-Current Stage | Industrial Sensor Power Supply Input |
Use Scenario: Off-line LED driver with passive PFC and buck-derived constant-current output driving 10 W LED string. IC Role / Device Role / Timing Role: Bridge rectifier input stage feeding bulk capacitor; operates at line frequency but benefits from low leakage. Use Value: RS1JL's ≤5 µA IR at 600 V ensures minimal no-load power loss and stable bus voltage during dimming cycles. | Use Scenario: 24 V sensor node powered from 48 V DC distribution bus via discrete step-down converter. IC Role / Device Role / Timing Role: Input rectifier in non-isolated buck front-end handling transient surges and reverse polarity risk. Use Value: RS1JL's 30 A IFSM handles 8.3 ms line transients; cathode band provides unambiguous polarity identification during manual repair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | VRRM = 600 V, IF = 1.0 A, trr = 150 ns, DO-214AC package | Higher IF and faster trr; larger thermal mass requires different pad layout | Preferred where higher current margin or tighter timing control is needed; verify PCB land pattern compatibility |
| ES1J | VRRM = 600 V, IF = 1.0 A, trr = 35 ns, SMA package (not Sub SMA) | Ultra-fast recovery; significantly lower VF (~0.95 V) but higher cost and tighter layout tolerance | Selected when minimizing conduction + switching loss is critical; requires requalification of thermal performance |
Compared with STTH1R06 and ES1J, the RS1JL offers balanced trade-offs: lower cost than ES1J, smaller footprint than STTH1R06, and sufficient speed for sub-300 kHz designs-making it optimal for cost-sensitive, space-constrained industrial power supplies.
Availability
RS1JL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and general-purpose power rectification requiring stable component supply across automotive infotainment subsystems, industrial PLC I/O modules, and IoT edge sensor nodes.
Supply support for RS1JL 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 MOSFETs for industrial and consumer markets.
The RS1xL series was developed to deliver reliable, cost-optimized fast recovery rectifiers in compact Sub SMA packages for high-volume SMT power conversion applications where thermal robustness and process compatibility are essential.
FAQ
What is the maximum junction temperature rating for RS1JL?
The RS1JL has a maximum junction temperature (TJ) of +150 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet N2103. This rating applies under continuous operation with proper thermal management and defines the upper limit for die temperature during normal use. Exceeding this value risks permanent degradation of the glass-passivated junction. Derating curves in the datasheet show usable IF decreases above 75 °C ambient.
Does RS1JL have a specified reverse recovery charge (Qrr)?
No, the official Taiwan Semiconductor datasheet N2103 for RS1JL does not specify reverse recovery charge (Qrr). Only reverse recovery time (trr = 250 ns) is provided under defined test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). Qrr is not characterized or guaranteed for RS1JL; designers requiring Qrr data should consider alternatives like STTH1R06 or consult TSC application engineering for test reports.
Is RS1JL compatible with lead-free reflow profiles?
Yes, RS1JL is compatible with standard lead-free reflow profiles. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the Sub SMA package is rated for peak reflow temperatures up to 260 °C per JEDEC J-STD-020 (MSL Level 1). No pre-baking is required due to its moisture sensitivity level 1 classification, enabling direct placement into standard Pb-free SMT lines.
What is the marking code printed on the RS1JL device body?
The RS1JL is marked with "RJL" on its device body, as confirmed in the Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet N2103. This three-character code distinguishes it within the RS1xL family and corresponds to its 600 V VRRM rating. The marking appears adjacent to the cathode band and is laser-etched for readability after reflow.
Can RS1JL replace RS1GL in an existing design?
RS1JL can replace RS1GL only if the design requires ≥600 V reverse blocking capability and accommodates identical Sub SMA packaging and thermal characteristics. RS1GL has VRRM = 400 V and trr = 150 ns; substituting RS1JL increases reverse margin but adds 100 ns recovery delay, which may affect EMI or efficiency in high-frequency layouts. Verify layout thermal relief and snubber tuning before replacement.
RS1JL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 800mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 800 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1JL FAQ
1.How can I place an order for RS1JL through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1JL 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 RS1JL reliable?
The price and inventory of RS1JL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1JL is usually 5 days.
3.What payment methods are accepted for RS1JL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1JL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1JL?
RS1JL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1JL 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 RS1JL?
For technical support, including RS1JL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1JL requirements.
6.How does Aetrix verify that RS1JL is sourced from the original manufacturer or authorized distributors?
All RS1JL 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 RS1JL meets industry standards.
7.What is the process for return or replacement of RS1JL?
All RS1JL units undergo pre-shipment inspection (PSI). If there is an issue with RS1JL, 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 RS1JL part is unused and in its original packaging.
Return procedure for RS1JL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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