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Taiwan Semiconductor Corporation RS1J-T
- Part No.:
- RS1J-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS1J-T.pdf
- Description:
- 250NS, 1A, 600V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:6,874
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Product details
Overview
RS1J-T from Taiwan Semiconductor is a 1A, 600V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 250 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 5 µA max reverse leakage at 25°C. It serves as a primary output rectifier in high-frequency DC-DC converters requiring low conduction loss and rapid switching.
For engineers reviewing the RS1J-T datasheet, RS1J-T pinout, RS1J-T application, or RS1J-T equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, thermal resistance of 105 °C/W (junction-to-ambient), moisture sensitivity level 1 compliance, RoHS/halogen-free status, and suitability for automated SMT assembly.
Technical Context
The RS1J-T employs a glass-passivated silicon junction optimized for fast recovery in switching-mode power supplies. Its single-die configuration supports unidirectional conduction with cathode-band polarity indication and operates across –55°C to +150°C junction temperature range.
Designed for high-efficiency operation, it delivers low forward voltage drop (≤1.3 V) while maintaining tight reverse leakage control (≤5 µA @ 25°C, ≤50 µA @ 125°C) and exhibits 10 pF typical junction capacitance at 1 MHz and 4 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or forward converter secondary-side rectification |
| IF | 1 A continuous - average forward current rating; determines thermal sizing for PCB copper area and ambient temperature derating |
| trr | 250 ns - reverse recovery time; enables efficient operation up to ~500 kHz switching frequencies without excessive switching loss |
| VF (max) | 1.3 V @ 1 A, 25°C - forward voltage drop directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| IR (max) | 5 µA @ 25°C - low reverse leakage preserves efficiency in high-impedance hold-up or sensing circuits |
| RθJA | 105 °C/W - junction-to-ambient thermal resistance; used to calculate temperature rise under given power dissipation and board layout |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, matte tin-plated leads, polarity indicated by cathode band, UL 94V-0 molding compound, weight ≈0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or ground-referenced rail) |
| Cathode | Forward current exit point | Connected to output filter capacitor positive terminal; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances reliability and humidity resistance for long-term operation in industrial environments |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cost and process complexity |
| Fast recovery (250 ns) | Minimizes reverse recovery charge (Qrr), lowering EMI and improving efficiency in high-frequency SMPS |
| RoHS and halogen-free | Complies with IEC 61249-2-21 and global environmental regulations for consumer and industrial end equipment |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Auxiliary Supply |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V/1 A buck-derived DC-DC module powering FPGA I/O banks. IC Role / Device Role / Timing Role: Unidirectional current steering device converting transformer AC output to regulated DC; no timing function. Use Value: 250 ns trr reduces switching loss vs. standard recovery diodes, enabling higher frequency operation without thermal penalty. | Use Scenario: Bias supply rectification for gate drivers in 3-phase motor inverter control boards. IC Role / Device Role / Timing Role: High-reliability power conversion element delivering stable 15 V auxiliary rail; no signal conditioning or timing role. Use Value: 600 V VRRM provides margin against voltage spikes during IGBT turn-off; 105 °C/W RθJA allows compact layout with minimal copper pour. |
| Industrial PLC Power Input Stage | LED Driver Constant-Current Feedback Path |
Use Scenario: Input bridge rectification in 24 V DC input stage of programmable logic controller with wide ambient range. IC Role / Device Role / Timing Role: Discrete power rectifier handling line-transient energy; no active control or timing involvement. Use Value: –55°C to +150°C TJ range ensures functionality across extended industrial temperature profiles without derating. | Use Scenario: Reverse-polarity protection and current-sense path isolation in constant-current LED driver feedback loop. IC Role / Device Role / Timing Role: Low-leakage blocking diode preventing backfeed into sense amplifier; no timing or signal processing. Use Value: 5 µA max IR at 25°C prevents measurement offset drift in precision current-sense circuits over time and temperature. |
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; 150 ns trr (faster), but higher VF (1.7 V typ) and RθJA = 120 °C/W | Better for ultra-high-frequency designs where speed outweighs conduction loss; less thermally efficient | Prefer RS1J-T when thermal management is constrained or lower VF is critical |
| ON Semi MUR106 | 1 A / 600 V; 75 ns trr, VF = 1.7 V max, RθJA = 110 °C/W, DO-41 through-hole package | Requires PCB redesign for through-hole mounting; faster but less thermally robust than RS1J-T | Choose RS1J-T for SMT compatibility, lower VF, and superior thermal performance in space-constrained layouts |
Compared with STTH1R06U and MUR106, the RS1J-T offers the best balance of low forward voltage, moderate recovery speed, and industry-leading thermal resistance in an SMT package-making it optimal for thermally dense, high-volume power supply designs.
Availability
RS1J-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial PLC power stages requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for RS1J-T 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, serving global industrial, computing, and consumer markets since 1979.
The RS1J-T belongs to TSC's RS1x-T fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC power conversion in cost-sensitive, high-volume applications.
FAQ
What is the maximum junction temperature rating for the RS1J-T?
The RS1J-T has a maximum junction temperature (TJ) rating of +150°C, with operational capability down to –55°C. This wide range supports use in demanding industrial environments where ambient temperatures exceed 85°C. Derating curves in the datasheet define allowable forward current versus case temperature, and thermal design must account for RθJA = 105 °C/W to ensure RS1J-T remains within limits under full load.
Does the RS1J-T meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, the RS1J-T is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH and requires no baking before standard lead-free reflow soldering. This eliminates pre-conditioning steps in SMT lines, reducing process cost and cycle time-critical for high-throughput manufacturing of power supplies using RS1J-T.
How does the reverse recovery time of RS1J-T compare to other parts in the RS1x-T series?
The RS1J-T has a specified trr of 250 ns, positioned between RS1G-T (150 ns) and RS1K-T (500 ns) in the RS1x-T family. This value is measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. Engineers selecting RS1J-T benefit from a balanced trade-off: sufficient speed for 100–500 kHz converters while retaining lower VF and better thermal behavior than faster variants like RS1G-T.
Is the RS1J-T halogen-free and RoHS compliant?
Yes, the RS1J-T is both RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and all terminals are matte tin-plated per J-STD-002. These attributes make RS1J-T suitable for export to EU, Japan, and other regulated markets where environmental compliance is mandatory for end equipment certification.
What is the marking code printed on the RS1J-T device body?
The RS1J-T is marked with "RS1J" on the device body, consistent with Taiwan Semiconductor's ordering code convention where the suffix letter denotes VRRM rating (J = 600 V). The marking appears adjacent to the cathode band and is laser-etched for readability post-reflow. This marking enables quick visual verification during incoming inspection and field repair without requiring electrical testing to confirm RS1J-T identity.
RS1J-T 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):
- 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:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1J-T FAQ
1.How can I place an order for RS1J-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1J-T 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 RS1J-T reliable?
The price and inventory of RS1J-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1J-T is usually 5 days.
3.What payment methods are accepted for RS1J-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1J-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1J-T?
RS1J-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1J-T 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 RS1J-T?
For technical support, including RS1J-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1J-T requirements.
6.How does Aetrix verify that RS1J-T is sourced from the original manufacturer or authorized distributors?
All RS1J-T 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 RS1J-T meets industry standards.
7.What is the process for return or replacement of RS1J-T?
All RS1J-T units undergo pre-shipment inspection (PSI). If there is an issue with RS1J-T, 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 RS1J-T part is unused and in its original packaging.
Return procedure for RS1J-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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