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Taiwan Semiconductor Corporation RS1JFS
- Part No.:
- RS1JFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
RS1JFS.pdf
- Description:
- DIODE GEN PURP 600V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:27,760
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Product details
Overview
RS1JFS from Taiwan Semiconductor is a 1A, 600V fast recovery surface-mount rectifier in SOD-128 package, featuring 250 ns reverse recovery time, 1.01 V forward voltage at 1.0A/25°C, and 175°C maximum junction temperature. It serves as primary output rectifier in DC-DC converters and switching-mode power supplies where efficiency and thermal robustness are critical.
For engineers reviewing the RS1JFS datasheet, RS1JFS pinout, RS1JFS application, or RS1JFS equivalent, key selection criteria include its 600V VRRM, 30A IFSM, glass-passivated junction, JESD201 Class 2 whisker resistance, and SOD-128 low-profile footprint for high-density PCB layouts.
Technical Context
The RS1JFS is a single-die, unidirectional fast recovery rectifier optimized for high-frequency switching applications. Its 250 ns trr enables reduced switching losses compared to standard recovery diodes, while the 29°C/W RθJL supports efficient heat transfer to the PCB copper pad.
Designed with glass passivation for stable junction reliability, it operates across –55°C to +175°C and meets RoHS and halogen-free requirements. The cathode band polarity marking and matte tin-plated leads ensure compatibility with automated assembly and J-STD-002 soldering standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in 48V–60V output DC-DC stages |
| IF | 1 A - Continuous average forward current; supports sustained load in compact SMPS designs |
| trr | 250 ns - Measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables operation up to ~2 MHz switching frequency |
| VF @ 1A/25°C | 1.01 V (typ), 1.30 V (max) - Directly impacts conduction loss and thermal rise in high-duty-cycle operation |
| RθJL | 29 °C/W - Junction-to-lead thermal resistance on 5mm×5mm Cu pad; enables >0.8W dissipation without heatsink |
| IFSM | 30 A - Non-repetitive surge rating; withstands inrush and transient overloads in industrial power supplies |
| Junction temp | –55°C to +175°C - Wide operating range supports under-hood automotive and industrial ambient conditions |
Pinout & Package
SOD-128 surface-mount package with molded plastic body per JEDEC DO-221AD, 0.027g weight, cathode indicated by band, matte tin-plated leads, and UL 94V-0 rated molding compound.
| 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) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or filter capacitor positive; blocks 600V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of leakage current and breakdown voltage under thermal cycling and humidity stress |
| Low profile SOD-128 package | Height ≤0.9 mm enables ultra-thin power modules and space-constrained consumer adapters |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications such as telecom and industrial control |
| Moisture sensitivity level 1 | No bake requirement prior to reflow; compatible with standard SMT lines without dry-pack handling |
| Halogen-free & RoHS compliant | Meets IPC-1752A environmental compliance for global OEM shipments and WEEE recycling |
Applications
| Server PSU Output Rectification | Industrial DC-DC Converter |
|---|---|
Use Scenario: Secondary-side rectification in 12V/48V isolated DC-DC bricks for rack-mounted servers. IC Role / Device Role / Timing Role: Fast recovery rectifier replacing Schottky diodes where 600V blocking is required and 250 ns trr minimizes switching loss. Use Value: Enables higher efficiency than standard recovery diodes while avoiding cost and voltage limitations of SiC alternatives. | Use Scenario: Output stage in 24V input, 5V/3.3V regulated DC-DC converters for PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional current path with low VF and stable IR at 125°C ambient. Use Value: Maintains <5 µA leakage at full rated voltage and 125°C, ensuring minimal standby loss in always-on systems. |
| Automotive Body Control Module | LED Driver Power Stage |
Use Scenario: Reverse polarity protection and supply rectification in 12V/24V BCM power inputs. IC Role / Device Role / Timing Role: High-temp-rated rectifier with –55°C to +175°C operation and JESD201 whisker resistance. Use Value: Survives under-hood thermal transients and meets AEC-Q101 stress test prerequisites via construction and qualification. | Use Scenario: AC input bridge rectification in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Fast recovery diode in single-phase bridge configuration driving 350 mA–1 A LED strings. Use Value: 250 ns trr reduces EMI generation during commutation, easing EMI filter design and certification. |
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 600V VRRM, 1A IF, but TO-277 package (higher RθJA = 110°C/W); trr = 200 ns | Requires larger board area; less suitable for ultra-thin designs due to 1.6 mm height | Choose when higher surge rating (60A IFSM) outweighs footprint constraints |
| ON Semi MUR160 | 600V VRRM, 1A IF, DO-41 through-hole; trr = 50 ns (faster), but no SMD option and higher VF (1.3 V typ) | Not SMD-compatible; incompatible with automated assembly; limited to prototyping or legacy repair | Choose only for hand-soldered legacy upgrades where ultra-fast recovery is mandatory and layout allows leaded parts |
Compared with STTH1R06U and MUR160, the RS1JFS delivers optimal balance of SMD compatibility, thermal performance (29°C/W RθJL), and 250 ns trr in a JEDEC-standardized low-profile package-making it preferred for volume-manufactured, space-constrained power supplies.
Availability
RS1JFS is available at Aetrix Electronics and suitable for server PSUs, industrial DC-DC converters, and automotive body control modules requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for RS1JFS 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 power management and industrial markets since 1979.
The RS1JFS belongs to TSC's RSxFS fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC conversion in compact, thermally demanding environments.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS1JFS?
The RS1JFS has a VRRM of 600 V, verified per Taiwan Semiconductor's D2304 datasheet revision. This rating ensures reliable blocking capability in 48V–60V output DC-DC converters and 230VAC-derived offline supplies with sufficient derating margin. Exceeding this voltage risks irreversible junction breakdown.
Does RS1JFS have a specified reverse recovery time (trr)?
Yes, RS1JFS has a measured trr of 250 ns under standard test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). This value is explicitly listed in the "ELECTRICAL SPECIFICATIONS" table of the official datasheet and distinguishes RS1JFS from slower variants like RS1KFS (500 ns) and faster ones like RS1DFS (150 ns).
What package type does RS1JFS use, and is it RoHS compliant?
RS1JFS uses the SOD-128 surface-mount package per JEDEC DO-221AD, with matte tin-plated leads and halogen-free molding compound. It is fully RoHS compliant and rated moisture sensitivity level 1 (MSL-1), meaning no baking is required before reflow soldering per J-STD-020.
What is the forward voltage (VF) of RS1JFS at 1.0A and 25°C?
At 1.0 A forward current and 25°C junction temperature, RS1JFS exhibits a typical forward voltage of 1.01 V and a maximum of 1.30 V, as confirmed in the "ELECTRICAL SPECIFICATIONS" section. This VF directly determines conduction loss and must be factored into thermal design for continuous 1A operation.
Can RS1JFS replace RS1KFS in an existing design?
No-RS1JFS (600V VRRM) is not a drop-in replacement for RS1KFS (800V VRRM). While both share the same SOD-128 package and pinout, substituting RS1JFS in a circuit designed for 800V blocking risks reverse breakdown under transient overvoltage. Always verify system-level voltage stress before interchanging RSxFS family members.
RS1JFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- 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:
- 7pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS1JFS FAQ
1.How can I place an order for RS1JFS through Aetrix?
Please submit a Request for Quotation (RFQ) for RS1JFS 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 RS1JFS reliable?
The price and inventory of RS1JFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS1JFS is usually 5 days.
3.What payment methods are accepted for RS1JFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS1JFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS1JFS?
RS1JFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS1JFS 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 RS1JFS?
For technical support, including RS1JFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS1JFS requirements.
6.How does Aetrix verify that RS1JFS is sourced from the original manufacturer or authorized distributors?
All RS1JFS 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 RS1JFS meets industry standards.
7.What is the process for return or replacement of RS1JFS?
All RS1JFS units undergo pre-shipment inspection (PSI). If there is an issue with RS1JFS, 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 RS1JFS part is unused and in its original packaging.
Return procedure for RS1JFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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