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Taiwan Semiconductor Corporation S1JM RSG
- Part No.:
- S1JM RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
S1JM RSG.pdf
- Description:
- DIODE GEN PURP 600V 1A MICRO SMA
- Quantity:
- Payment:
- Shipping:
Inventory:5,039
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Product details
Overview
S1JM RSG from Taiwan Semiconductor is a 1 A, 600 V standard surface-mount silicon rectifier diode in Micro SMA package, featuring low forward voltage drop (1.10 V max at 1 A), 780 ns reverse recovery time, and 20 A surge capability - used in DC-DC converters and switching-mode inverters for industrial power supplies.
For engineers reviewing the S1JM RSG datasheet, S1JM RSG pinout, S1JM RSG application, or S1JM RSG equivalent, key selection criteria include repetitive peak reverse voltage (600 V), junction temperature range (–55 °C to +175 °C), thermal resistance (RθJL = 30 °C/W), and RoHS/halogen-free compliance for high-reliability board-level integration.
Technical Context
The S1JM RSG is a single-die, glass-passivated standard recovery rectifier optimized for automated placement and high-temperature operation up to 175 °C junction. Its 600 V VRRM rating and 20 A IFSM support robust transient handling in off-line SMPS front-end and flyback secondary-side rectification.
With a typical junction capacitance of 5 pF at 4 V and reverse recovery time of 780 ns under defined test conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A), the device balances speed and low conduction loss - suitable for medium-frequency (<100 kHz) switching applications where cost-sensitive reliability is prioritized over ultrafast recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification in 400 VAC line-derived systems with safety margin |
| IF | 1 A continuous - rated for steady-state output rectification in low-power DC-DC stages |
| IFSM | 20 A (8.3 ms half-sine) - withstands inrush and short-circuit surge events without failure |
| VF max | 1.10 V @ 1 A, 25 °C - minimizes conduction loss and self-heating in compact layouts |
| trr | 780 ns - enables stable operation in 50–100 kHz switching converters with moderate EMI control |
| TJ max | +175 °C - allows operation in sealed enclosures or high-ambient industrial environments |
| RθJL | 30 °C/W - enables direct PCB copper pour heat sinking without external heatsink |
Pinout & Package
Package: Micro SMA - surface-mount plastic case with matte tin-plated leads, UL 94V-0 molding compound, cathode polarity indicated by band, weight ≈ 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to output filter capacitor positive rail or common return path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances long-term reliability and moisture resistance per J-STD-020 Level 1 MSL |
| Low forward voltage drop | Reduces power dissipation by ~15% vs. comparable 1 A/600 V rectifiers with VF > 1.25 V |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| Micro SMA footprint | Enables high-density layout with industry-standard pad dimensions and reflow compatibility |
Applications
| Industrial DC-DC Converters | Switching Mode Inverters |
|---|---|
Use Scenario: Isolated 24 V to 5 V/3.3 V regulation in programmable logic controllers and sensor transmitters. IC Role / Device Role / Timing Role: Secondary-side output rectifier replacing Schottky diodes where higher VRRM and thermal stability are required. Use Value: Enables reliable operation at 85 °C ambient with <1.10 V conduction loss, reducing thermal derating needs. | Use Scenario: Low-frequency (50–60 Hz) AC output stage in UPS and solar micro-inverters. IC Role / Device Role / Timing Role: Bridge rectifier leg in full-wave configurations for battery charging and grid-tie interface. Use Value: 20 A surge rating handles motor-start and capacitor-charging transients without degradation. |
| Off-Line SMPS Front-End | General-Purpose Power Supplies |
Use Scenario: Input rectification in universal-input (85–265 VAC) flyback adapters for industrial IoT gateways. IC Role / Device Role / Timing Role: Primary-side bridge rectifier component in compact, cost-optimized AC-DC modules. Use Value: 600 V VRRM provides 2× safety margin over 265 VAC peak (375 V), ensuring long-term die integrity. | Use Scenario: Bulk rectification in wall-mounted AC-DC adapters for building automation sensors. IC Role / Device Role / Timing Role: General-purpose discrete rectifier for non-critical, low-cost power conversion. Use Value: Halogen-free and RoHS-compliant construction meets global regulatory requirements without BOM complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06S | Same 1 A / 600 V rating; slightly faster trr (650 ns); higher VF (1.15 V typ) | Better suited for marginally higher switching frequencies; less optimal for thermally constrained layouts | Prefer when tighter EMI control is needed and thermal headroom exists |
| ES1J | 1 A / 600 V; faster trr (35 ns); higher cost; different Micro SMA marking and lead finish | Targeted at fast-recovery applications where S1JM RSG's 780 ns is insufficient | Select only if system-level testing confirms need for sub-100 ns recovery |
Compared with STTH1R06S and ES1J, the S1JM RSG delivers optimal balance of surge robustness, thermal resilience, and cost for industrial 50–100 kHz rectification - where ultrafast recovery is unnecessary and junction temperature stability is critical.
Availability
S1JM RSG is available at Aetrix Electronics and suitable for industrial DC-DC converters, switching mode inverters, and off-line SMPS front-end designs requiring stable component supply, long-lifecycle availability, and traceable sourcing.
Supply support for S1JM RSG 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 industrial, computing, and consumer markets since 1979.
The S1JM RSG belongs to TSC's S1xM standard rectifier family, designed specifically for cost-effective, high-reliability AC-DC and DC-DC power conversion in space-constrained industrial equipment.
FAQ
What is the maximum junction temperature rating for the S1JM RSG?
The S1JM RSG has a maximum junction temperature (TJ) rating of +175 °C, verified per absolute maximum ratings table. This allows sustained operation in sealed enclosures or high-ambient environments where thermal management is limited. The S1JM RSG maintains electrical performance within specification up to this limit, provided RθJL and PCB copper area meet thermal design guidelines.
Does the S1JM RSG have RoHS and halogen-free compliance documentation?
Yes, the S1JM RSG is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These certifications are confirmed in TSC's official product specification I2103 and supported by material declarations available through authorized distributors. The S1JM RSG carries no restricted substances above threshold limits.
What is the reverse recovery time (trr) of the S1JM RSG and under what test conditions?
The S1JM RSG has a reverse recovery time (trr) of 780 ns, measured under the condition: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. This value is specified in the Electrical Specifications table of the official datasheet (Version I2103). It reflects behavior in medium-frequency switching applications, not ultrafast or soft-recovery use cases.
Is the S1JM RSG pin-compatible with other Micro SMA rectifiers like the S1G or S1J?
The S1JM RSG uses the standard Micro SMA package with anode/cathode terminals in identical physical location and polarity marking (cathode band), making it mechanically and electrically interchangeable with other Micro SMA rectifiers such as S1G and S1J. However, voltage and surge ratings differ - S1JM RSG is rated for 600 V VRRM, while S1G is 400 V. Board-level replacement requires verification of voltage margin.
What is the thermal resistance from junction to lead (RθJL) for the S1JM RSG?
The S1JM RSG has a typical junction-to-lead thermal resistance (RθJL) of 30 °C/W, enabling efficient heat transfer to the PCB copper pour. This value is measured under standard JEDEC test conditions and supports thermal design without additional heatsinking in most industrial applications. The S1JM RSG achieves this via optimized die attach and leadframe geometry in the Micro SMA package.
S1JM RSG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 2-SMD, 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:
- 1.1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 780 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 5pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Micro SMA
- Operating Temperature - Junction:
- -55°C ~ 175°C
S1JM RSG FAQ
1.How can I place an order for S1JM RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for S1JM RSG 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 S1JM RSG reliable?
The price and inventory of S1JM RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1JM RSG is usually 5 days.
3.What payment methods are accepted for S1JM RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1JM RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S1JM RSG?
S1JM RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S1JM RSG 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 S1JM RSG?
For technical support, including S1JM RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1JM RSG requirements.
6.How does Aetrix verify that S1JM RSG is sourced from the original manufacturer or authorized distributors?
All S1JM RSG 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 S1JM RSG meets industry standards.
7.What is the process for return or replacement of S1JM RSG?
All S1JM RSG units undergo pre-shipment inspection (PSI). If there is an issue with S1JM RSG, 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 S1JM RSG part is unused and in its original packaging.
Return procedure for S1JM RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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