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Taiwan Semiconductor Corporation RS2MA
- Part No.:
- RS2MA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2MA.pdf
- Description:
- DIODE GEN PURP 1.5A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,675
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Product details
Overview
RS2MA from Taiwan Semiconductor is a 1000 V repetitive peak reverse voltage, 1.5 A average forward current fast recovery surface-mount rectifier in DO-214AC (SMA) package, with 500 ns reverse recovery time and 1.3 V max forward voltage at 1.5 A - used in high-voltage snubber networks and industrial DC-DC converters.
For engineers reviewing the RS2MA datasheet, RS2MA pinout, RS2MA application, or RS2MA equivalent, key selection criteria include its 1000 V VRRM, 500 ns trr, 175 °C junction temperature rating, DO-214AC mechanical compatibility, and cathode-band polarity marking for reliable high-voltage rectification.
Technical Context
The RS2MA employs a single-die, glass-passivated silicon junction optimized for fast switching in high-voltage, medium-current applications. Its 500 ns reverse recovery time enables efficient operation in 50–100 kHz switching converters, while the 18 °C/W junction-to-lead thermal resistance supports sustained 1.5 A conduction under constrained PCB thermal conditions.
Designed for surface-mount automated placement, the device meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance. The DO-214AC (SMA) package features matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity indication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports primary-side rectification in offline SMPS up to 800 V DC bus |
| IF | 1.5 A average - rated for continuous conduction in 12–24 W power stages |
| trr | 500 ns - enables low-loss switching in 50–100 kHz flyback and forward converters |
| VF | ≤1.3 V @ 1.5 A - limits conduction loss to ≤1.95 W at full load |
| TJ max | 175 °C - allows operation in sealed industrial enclosures without forced air |
| RθJL | 18 °C/W - enables direct heat transfer to copper pour or thermal pad on PCB |
| IFSM | 50 A @ 8.3 ms - withstands inrush surges in AC-input rectifier bridges |
Pinout & Package
DO-214AC (SMA) surface-mount package with axial lead configuration: anode and cathode terminals formed by two coplanar metallized leads extending from opposite ends of the molded plastic body; polarity indicated by a visible cathode band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal | Connected to AC source or transformer secondary; accepts forward current flow into device |
| Cathode | Negative output terminal | Marked with band; delivers rectified DC output; connects to filter capacitor or load return |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents surface leakage and degradation under high-humidity or contaminated environments |
| Fast recovery (500 ns) | Reduces switching losses and EMI generation in high-frequency SMPS topologies |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, enabling direct SMT line integration |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for industrial and lighting end equipment |
| Matte tin-plated leads | Ensures reliable solder wetting and joint integrity per J-STD-002 |
Applications
| Industrial DC-DC Converters | High-Voltage Snubbers |
|---|---|
Use Scenario: Isolated 48 V–300 V input DC-DC modules for PLC I/O power supplies and motor drive auxiliary rails. IC Role / Device Role / Timing Role: Primary-side output rectifier handling 1.5 A continuous current at up to 1000 V reverse stress. Use Value: 500 ns trr minimizes reverse recovery charge loss during MOSFET turn-on, improving efficiency above 60 kHz. | Use Scenario: RCD clamp networks in flyback and forward converters operating at 800–1000 V bus levels. IC Role / Device Role / Timing Role: Fast-recovery diode absorbing transformer leakage energy during switch-off transitions. Use Value: 1000 V VRRM and 500 ns trr ensure reliable clamping without avalanche breakdown or delayed turn-off. |
| LED Driver Secondary Rectification | Switching Inverters (UPS/Backup) |
Use Scenario: Constant-current LED drivers for high-bay and street lighting with 300–700 V DC output. IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED string, exposed to transient overvoltage during dimming transients. Use Value: 175 °C TJ max and 50 A IFSM support surge immunity during hot-plug and short-circuit events. | Use Scenario: Bidirectional DC link rectification in 1 kVA UPS inverters with 800 V DC bus. IC Role / Device Role / Timing Role: Freewheeling and commutation diode in H-bridge output stage during dead-time conduction. Use Value: DO-214AC footprint enables compact layout; 18 °C/W RθJL sustains 1.5 A RMS current without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L100S | 1000 V VRRM, 1 A IF, 500 ns trr, DO-214AC - lower current rating | Not suitable for 1.5 A continuous loads; requires derating or parallel use | Select only if system peak current remains ≤1.0 A and thermal margin permits |
| ES1J | 600 V VRRM, 1 A IF, 35 ns trr, DO-214AC - faster but lower voltage rating | Cannot replace RS2MA in ≥700 V circuits due to insufficient VRRM margin | Consider only for sub-500 V applications where ultra-fast recovery outweighs voltage headroom |
Compared with STTH1L100S and ES1J, the RS2MA uniquely balances 1000 V blocking capability with 1.5 A current capacity and 500 ns recovery - making it the only DO-214AC rectifier in this family qualified for 1.5 A continuous duty at full 1000 V stress without parallel devices or thermal derating.
Availability
RS2MA is available at Aetrix Electronics and suitable for industrial DC-DC converters, high-voltage snubber networks, and LED driver secondary rectification requiring stable component supply across multi-year production cycles.
Supply support for RS2MA 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The RS2MA belongs to TSC's RS2x fast recovery rectifier product line, engineered specifically for high-voltage, medium-current switching power supplies where reliability under thermal and voltage stress is critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS2MA?
The RS2MA has a maximum repetitive peak reverse voltage (VRRM) of 1000 V. This rating is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2304), and defines the highest reverse voltage the device can block repeatedly without breakdown. It makes RS2MA suitable for rectification in offline power supplies with DC bus voltages up to 800 V.
What is the forward voltage drop (VF) of RS2MA at rated current?
The RS2MA exhibits a maximum forward voltage drop (VF) of 1.3 V at 1.5 A forward current and 25 °C junction temperature. This value is specified under pulsed test conditions (PW = 0.3 ms) and directly impacts conduction loss - resulting in ≤1.95 W dissipation at full rated current, which must be managed via PCB copper area or thermal relief design.
Does RS2MA have a defined reverse recovery time (trr)?
Yes, the RS2MA has a specified reverse recovery time (trr) of 500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is explicitly listed in the Electrical Specifications table for RS2KA and RS2MA variants and is critical for minimizing switching losses and EMI in high-frequency converter designs operating above 50 kHz.
What package type does RS2MA use, and what are its key mechanical attributes?
The RS2MA uses the DO-214AC (SMA) surface-mount package. Key mechanical attributes include matte tin-plated leads compliant with J-STD-002, UL 94V-0 flammability-rated molding compound, cathode band polarity marking, and a weight of approximately 0.060 g. Its dimensions conform to JEDEC DO-214AC standards, enabling drop-in compatibility with standard SMA footprints.
Is RS2MA RoHS compliant and halogen-free?
Yes, RS2MA is RoHS compliant and halogen-free, as stated in the Features section of the Taiwan Semiconductor datasheet (Version I2304). These compliance attributes meet EU Directive 2011/65/EU and IPC-4101D requirements, supporting environmentally regulated industrial and lighting applications without restriction on use or reporting obligations.
RS2MA 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):
- 1000 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):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2MA FAQ
1.How can I place an order for RS2MA through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MA 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 RS2MA reliable?
The price and inventory of RS2MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MA is usually 5 days.
3.What payment methods are accepted for RS2MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MA?
RS2MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MA 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 RS2MA?
For technical support, including RS2MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MA requirements.
6.How does Aetrix verify that RS2MA is sourced from the original manufacturer or authorized distributors?
All RS2MA 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 RS2MA meets industry standards.
7.What is the process for return or replacement of RS2MA?
All RS2MA units undergo pre-shipment inspection (PSI). If there is an issue with RS2MA, 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 RS2MA part is unused and in its original packaging.
Return procedure for RS2MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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