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Taiwan Semiconductor Corporation SS23M RSG
- Part No.:
- SS23M RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
SS23M RSG.pdf
- Description:
- DIODE SCHOTTKY 30V 2A MICRO SMA
- Quantity:
- Payment:
- Shipping:
Inventory:14,866
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Product details
Overview
SS23M RSG from Taiwan Semiconductor is a 2A, 30V Schottky barrier surface-mount rectifier in Micro SMA package, featuring VF ≤ 0.60 V at 2A/25°C, IR ≤ 150 µA at 25°C, and TJ max = 150°C. It serves as a low-loss freewheeling or output rectifier in compact DC-DC converters and AC-DC adapters.
For engineers reviewing the SS23M RSG datasheet, SS23M RSG pinout, SS23M RSG application, or SS23M RSG equivalent, key selection criteria include repetitive peak reverse voltage (30 V), forward surge capability (25 A), thermal resistance (RθJL = 15 °C/W), cathode-band polarity marking, and RoHS/halogen-free compliance for high-efficiency power stage design.
Technical Context
The SS23M RSG uses a single-die Schottky junction optimized for low forward voltage and fast switching with no minority-carrier storage delay. Its Micro SMA package enables automated placement and supports reflow soldering per J-STD-002, with matte tin-plated leads and JESD 201 Class 2 whisker resistance.
Thermally, it delivers RθJL = 15 °C/W and RθJA = 105 °C/W, enabling 2A continuous operation up to 125°C ambient when mounted on ≥1 cm² copper. Reverse leakage remains ≤15 mA at 125°C and rated VR, supporting stable performance in thermally constrained SMPS layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum non-repetitive reverse blocking voltage; defines usable input/output voltage range in buck or flyback secondary-side rectification |
| IF | 2 A - Continuous forward current rating at TA = 25°C; derates linearly to ~1.3 A at 100°C ambient per curve Fig.1 |
| VF | ≤0.60 V @ 2A, 25°C - Directly reduces conduction loss; yields <1.2 W dissipation at full load, critical for thermal budget in sealed adapters |
| IFSM | 25 A - Peak non-repetitive surge current (8.3 ms half-sine); withstands inrush and transient overloads without failure |
| IR | ≤150 µA @ 30 V, 25°C - Low leakage preserves efficiency in standby mode and minimizes standby power in energy-compliant designs |
| TJ max | 150°C - Maximum junction temperature; allows operation in high-ambient industrial or enclosed power supplies |
| RθJL | 15 °C/W - Junction-to-lead thermal resistance; enables direct thermal coupling to PCB copper for passive cooling without heatsinks |
Pinout & Package
Package: Micro SMA - Surface-mount, molded plastic case meeting UL 94V-0; cathode indicated by band; weight ≈ 0.006 g; lead finish: matte tin; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous buck, transformer center-tap in full-wave) |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to output rail or filter capacitor positive; blocks reverse voltage up to 30 V |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.68 mm typical height) | Enables ultra-thin power adapter and IoT device designs where Z-height is constrained by mechanical enclosure |
| Low VF and low IR | Reduces total power loss below 1.5 W at 2A, improving efficiency >92% in 5–12 V DC-DC stages |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; supports standard SMT line handling without special humidity control |
| RoHS and halogen-free (IEC 61249-2-21) | Meets global environmental compliance mandates for consumer, industrial, and medical-adjacent end equipment |
| Automated placement compatible | Standard Micro SMA footprint and lead geometry ensure high-yield pick-and-place with industry-standard feeders and vision systems |
Applications
| USB-C Power Adapter | Industrial DC-DC Converter |
|---|---|
Use Scenario: Secondary-side rectification in 20–65 W USB PD adapters with tight thermal and height constraints. IC Role / Device Role / Timing Role: Schottky rectifier replacing slower diodes to minimize conduction loss and improve light-load efficiency. Use Value: VF ≤ 0.60 V at 2A reduces heat generation by ~40% vs. standard PN diodes, enabling smaller heatsinks and thinner housings. | Use Scenario: Output rectification in isolated 24 V input, 5/12 V output industrial DC-DC modules operating at -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Freewheeling path for synchronous rectifier control or standalone high-efficiency output stage. Use Value: RθJL = 15 °C/W and TJ max = 150°C allow reliable 2A operation without forced air, reducing system BOM cost and noise. |
| LED Driver Power Supply | Point-of-Load Regulator |
Use Scenario: Constant-current LED driver with active PFC front-end and isolated flyback secondary. IC Role / Device Role / Timing Role: Output rectifier delivering stable DC to LED string with minimal voltage drop. Use Value: Low IR ≤ 150 µA at 25°C prevents standby current drift and maintains dimming accuracy across temperature. | Use Scenario: Compact 12 V to 3.3 V/5 V PoL converter on FPGA or ASIC carrier boards with limited board area. IC Role / Device Role / Timing Role: High-frequency rectifier synchronized with switching node transitions to reduce ringing and EMI. Use Value: Fast recovery (no reverse recovery charge) eliminates snubber networks, simplifying layout and improving EMI margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS23H from Diodes Inc. | VRRM = 30 V, VF = 0.55 V @ 2A, RθJA = 110 °C/W, same Micro SMA package | Slightly lower VF improves efficiency at light loads; higher RθJA requires more copper area for thermal management | Prefer SS23H if optimizing for <10% load efficiency; prefer SS23M RSG if prioritizing thermal robustness at full load |
| SB230 from ON Semiconductor | VRRM = 30 V, VF = 0.62 V @ 2A, IFSM = 20 A, DO-214AA (SMA) package (larger than Micro SMA) | Larger SMA footprint increases PCB area use; lower surge rating limits inrush tolerance | Choose SB230 only if legacy SMA land pattern must be retained; SS23M RSG offers superior size and surge capability |
Compared with SS23H and SB230, the SS23M RSG balances low VF, high IFSM, and minimal footprint-making it optimal for space-constrained, high-reliability DC-DC outputs where thermal margin and surge resilience are both critical.
Availability
SS23M RSG is available at Aetrix Electronics and suitable for USB-C power adapters, industrial DC-DC converters, and LED driver power supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SS23M 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 global power, automotive, and industrial markets since 1979.
The SS23M RSG belongs to TSC's SS2xM Schottky rectifier family, engineered specifically for high-efficiency, surface-mount secondary-side rectification in compact AC-DC and isolated DC-DC power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the SS23M RSG?
The SS23M RSG has a VRRM of 30 V, as confirmed in the Absolute Maximum Ratings table across all versions (M2103) of the SS22M–SS24M datasheet. This rating applies under standard test conditions (TA = 25°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. Designers must ensure circuit peak reverse transients stay below this value, including margin for ringing or overshoot.
Does the SS23M RSG have a cathode band marking, and how is polarity identified?
Yes, the SS23M RSG uses a visible cathode band to indicate polarity, as stated in the Mechanical Data section. The band marks the cathode terminal, which must connect to the higher-potential node (e.g., output rail). This marking is consistent across all SS2xM variants and aligns with Micro SMA industry conventions-ensuring correct orientation during automated placement and manual inspection.
What is the forward voltage (VF) specification for the SS23M RSG at 2A and 125°C?
The SS23M RSG exhibits VF ≤ 0.55 V at IF = 2 A and TJ = 125°C, per the Electrical Specifications table. This value reflects improved conduction behavior at elevated junction temperatures due to Schottky physics and is critical for thermal design validation-confirming that power loss remains bounded even under worst-case thermal conditions in sealed enclosures.
Is the SS23M RSG compliant with RoHS and halogen-free standards?
Yes, the SS23M RSG is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the official datasheet. These compliance statements apply to the SS23M RSG variant and are verified through material declarations and third-party testing-supporting regulatory submissions for CE, UKCA, and other global market access requirements.
What is the surge current rating (IFSM) and test condition for the SS23M RSG?
The SS23M RSG has an IFSM rating of 25 A, tested using an 8.3 ms single half-sine wave superimposed on rated load, per the Absolute Maximum Ratings table. This rating ensures robustness against line surges, start-up inrush, and short-duration overloads in AC-DC and DC-DC applications-without requiring external fusing or current limiting for typical use cases.
SS23M 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:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 600 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 150 µA @ 30 V
- Capacitance @ Vr, F:
- 35pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Micro SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS23M RSG FAQ
1.How can I place an order for SS23M RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for SS23M 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 SS23M RSG reliable?
The price and inventory of SS23M RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS23M RSG is usually 5 days.
3.What payment methods are accepted for SS23M RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS23M RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS23M RSG?
SS23M RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS23M 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 SS23M RSG?
For technical support, including SS23M RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS23M RSG requirements.
6.How does Aetrix verify that SS23M RSG is sourced from the original manufacturer or authorized distributors?
All SS23M 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 SS23M RSG meets industry standards.
7.What is the process for return or replacement of SS23M RSG?
All SS23M RSG units undergo pre-shipment inspection (PSI). If there is an issue with SS23M 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 SS23M RSG part is unused and in its original packaging.
Return procedure for SS23M RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SS23M RSG Tags
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