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Taiwan Semiconductor Corporation RS2AAHM2G
- Part No.:
- RS2AAHM2G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2AAHM2G.pdf
- Description:
- DIODE GEN PURP 50V 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,602
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Product details
Overview
RS2AAHM2G from Taiwan Semiconductor is a 1.5A, 50V fast recovery surface-mount rectifier diode in DO-214AC (SMA) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and 5 µA max reverse leakage at 25°C - used in DC-DC converters and snubber circuits.
For engineers reviewing the RS2AAHM2G datasheet, RS2AAHM2G pinout, RS2AAHM2G application, or RS2AAHM2G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), thermal resistance (RθJL = 18 °C/W), junction temperature range (–55 to +175 °C), and RoHS/halogen-free compliance for industrial power conversion designs.
Technical Context
This single-die, glass-passivated fast recovery rectifier operates with low forward voltage drop and tightly controlled reverse recovery characteristics, enabling high-efficiency switching in medium-frequency SMPS topologies. Its DO-214AC (SMA) package supports automated placement and meets J-STD-020 moisture sensitivity level 1.
The device delivers 50 A non-repetitive surge current capability and maintains stable reverse leakage (<200 µA at 125°C), making it suitable for transient-prone input rectification and clamp/snubber functions where thermal robustness and fast turn-off are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in rectifier or clamp applications |
| IF | 1.5 A continuous - Rated average forward current; determines steady-state power dissipation and heatsink sizing |
| trr | 150 ns - Reverse recovery time; directly impacts switching losses and EMI in 50–500 kHz converters |
| VF max | 1.3 V @ 1.5 A, 25°C - Forward voltage drop; sets conduction loss and thermal load under full load |
| RθJL | 18 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour thermal management without external heatsink |
| IFSM | 50 A @ 8.3 ms - Peak surge rating; supports inrush current handling during startup or fault conditions |
| TJ max | +175 °C - Maximum junction temperature; allows operation in high-ambient industrial environments |
Pinout & Package
DO-214AC (SMA) surface-mount package with molded plastic body (UL 94V-0), matte tin-plated leads, cathode indicated by band. Weight: 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or snubber network; must withstand full VRRM |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance in unsealed industrial assemblies |
| Fast recovery (150 ns) | Reduces switching losses vs. standard rectifiers, improving efficiency in 100–300 kHz SMPS |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow, streamlining SMT line integration |
| RoHS & halogen-free | Meets IPC-1752A material declaration requirements for green electronics manufacturing |
| J-STD-002 solderability | Ensures consistent wetting and joint integrity on OSP- or ENIG-finished PCBs |
Applications
| DC-DC Converter Input Rectification | Snubber Network Clamp Diode |
|---|---|
Use Scenario: Rectifying transformer secondary output in isolated flyback or forward converters operating at 100–250 kHz. IC Role / Device Role / Timing Role: Power rectifier converting AC to DC; conducts during positive half-cycle and blocks reverse voltage during reset. Use Value: 150 ns trr minimizes reverse recovery charge (Qrr), reducing switching loss and MOSFET stress compared to 500 ns general-purpose diodes. | Use Scenario: Placed across switching FET or transformer winding to absorb inductive energy spikes during turn-off. IC Role / Device Role / Timing Role: Clamp diode providing low-impedance path for stored energy; requires fast turn-on and low VF to limit voltage overshoot. Use Value: 1.3 V VF max and 50 A IFSM enable effective clamping without thermal runaway during repeated transients. |
| Lighting Driver Secondary Side | Switching Mode Inverter Output Stage |
Use Scenario: Output rectification in LED driver PSUs with constant-current regulation and PFC front-end. IC Role / Device Role / Timing Role: Final-stage rectifier delivering regulated DC to LED string; operates continuously under 1.5 A load. Use Value: RθJL = 18 °C/W allows direct thermal coupling to copper pour, maintaining TJ < 125°C at full load without forced air. | Use Scenario: Output bridge rectification in 200–400 W inverters for solar micro-inverters or UPS systems. IC Role / Device Role / Timing Role: High-reliability rectifier handling bidirectional current surges and elevated ambient temperatures. Use Value: –55 to +175°C TJ range and JESD201 Class 2 whisker resistance ensure stable performance over 10+ year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06U (STMicroelectronics) | Same 1.5 A / 600 V rating but higher VF (1.7 V typ), slower trr (200 ns), DO-214AC package | Higher conduction loss limits use in high-efficiency <100 kHz designs; better suited for 600 V systems | Select when VRRM > 50 V is required and 150 ns trr is not critical |
| MBRS1540T3G (ON Semiconductor) | Schottky diode: 1.5 A / 40 V, VF = 0.55 V typ, no reverse recovery, but VRRM limited to 40 V | No Qrr loss, but unsuitable for 50 V blocking; requires derating for surge margin | Choose only if system VRRM ≤ 40 V and ultra-low VF is prioritized over blocking capability |
Compared with STTH1L06U and MBRS1540T3G, RS2AAHM2G uniquely balances 50 V blocking, 150 ns speed, and 1.3 V VF in a cost-effective SMA package - making it optimal for compact, thermally constrained 50 V DC-DC and snubber designs where both efficiency and reliability are essential.
Availability
RS2AAHM2G is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, and lighting drivers requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for RS2AAHM2G 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 RS2AA–RS2MA series was designed specifically for high-reliability, surface-mount fast recovery rectification in space-constrained power supplies - emphasizing thermal robustness, automated assembly compatibility, and tight parameter consistency across voltage grades.
FAQ
What is the maximum junction temperature rating for RS2AAHM2G?
The RS2AAHM2G has a maximum junction temperature (TJ) of +175°C and a minimum of –55°C. This wide operating range allows deployment in high-ambient environments such as enclosed industrial power supplies or automotive under-hood auxiliary converters. The RS2AAHM2G's thermal design leverages its 18 °C/W junction-to-lead resistance to maintain safe operation without additional heatsinking when mounted on adequate copper area.
Is RS2AAHM2G suitable for use in snubber circuits?
Yes, RS2AAHM2G is explicitly recommended for snubber applications due to its 150 ns reverse recovery time and 50 A peak surge rating. Its fast turn-off minimizes energy dissipation during clamping events, while the 1.3 V forward voltage ensures low voltage overshoot across inductive loads. The RS2AAHM2G's glass-passivated junction also enhances long-term stability under repetitive transient stress typical in snubber networks.
Does RS2AAHM2G meet RoHS and halogen-free requirements?
Yes, RS2AAHM2G is fully RoHS compliant and halogen-free per manufacturer documentation. It satisfies IPC-1752A material declarations and uses green molding compound meeting UL 94V-0 flammability standards. These attributes make RS2AAHM2G suitable for export-compliant industrial and consumer electronics where environmental regulations apply.
What is the marking code printed on the RS2AAHM2G device body?
The RS2AAHM2G is marked with "RS2AA" on the device body, followed by date code and factory identifier per the manufacturer's marking diagram. This matches the ordering code convention where "AA" denotes the 50 V VRRM variant within the RS2xx family. The cathode is clearly indicated by a band adjacent to the marking, confirming polarity for correct PCB layout orientation.
How does RS2AAHM2G compare to standard recovery rectifiers in switching applications?
RS2AAHM2G offers significantly faster reverse recovery (150 ns vs. 2–5 µs) and lower forward voltage (1.3 V max vs. 1.5–2.0 V) than standard recovery rectifiers, reducing both conduction and switching losses in 100–300 kHz SMPS. Unlike standard types, RS2AAHM2G's glass passivation and J-STD-020 Level 1 rating also support reliable reflow assembly - making RS2AAHM2G a drop-in upgrade for efficiency-critical, high-volume power designs.
RS2AAHM2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 50 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2AAHM2G FAQ
1.How can I place an order for RS2AAHM2G through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2AAHM2G 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 RS2AAHM2G reliable?
The price and inventory of RS2AAHM2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2AAHM2G is usually 5 days.
3.What payment methods are accepted for RS2AAHM2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2AAHM2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2AAHM2G?
RS2AAHM2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2AAHM2G 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 RS2AAHM2G?
For technical support, including RS2AAHM2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2AAHM2G requirements.
6.How does Aetrix verify that RS2AAHM2G is sourced from the original manufacturer or authorized distributors?
All RS2AAHM2G 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 RS2AAHM2G meets industry standards.
7.What is the process for return or replacement of RS2AAHM2G?
All RS2AAHM2G units undergo pre-shipment inspection (PSI). If there is an issue with RS2AAHM2G, 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 RS2AAHM2G part is unused and in its original packaging.
Return procedure for RS2AAHM2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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