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Taiwan Semiconductor Corporation RS2MA-T
- Part No.:
- RS2MA-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2MA-T.pdf
- Description:
- 500NS, 2A, 1000V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
RS2MA-T from Taiwan Semiconductor is a 1000 V, 2 A fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 500 ns reverse recovery time, 1.03 V forward voltage at 2 A/25°C, and 10 pF junction capacitance. It serves as a primary AC/DC input rectifier in high-voltage switching power supplies.
For engineers reviewing the RS2MA-T datasheet, RS2MA-T pinout, RS2MA-T application, or RS2MA-T equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (RθJL = 14 °C/W), surge current capability (IFSM = 50 A), and low leakage (<5 µA @ 25°C).
Technical Context
The RS2MA-T employs a single-die, glass-passivated PN junction optimized for fast recovery in high-frequency switching topologies. Its 1000 V VRRM and 500 ns trr enable use in PFC stages and offline SMPS where voltage margin and switching loss are critical.
Thermal performance is defined with RθJL = 14 °C/W and RθJA = 86 °C/W on a 5 mm × 5 mm Cu pad, supporting continuous 2 A operation up to 150 °C junction temperature under proper PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse voltage in 85–265 VAC input rectification with safety margin |
| IF | 2 A - Continuous forward current rating at TA = 25°C, derates linearly above 25°C |
| trr | 500 ns - Enables efficient operation in 100–500 kHz switching converters with low recovery loss |
| VF | 1.03 V @ 2 A, 25°C - Low conduction loss improves efficiency in high-current DC bus paths |
| IR | <5 µA @ 1000 V, 25°C - Minimizes standby power loss in high-impedance bias networks |
| CJ | 10 pF @ 4 V - Reduces capacitive coupling noise in EMI-sensitive gate-drive or feedback circuits |
| RθJL | 14 °C/W - Enables direct thermal transfer to PCB copper, simplifying heatsinking in space-constrained layouts |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, cathode indicated by band. Matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for positive half-cycle conduction | Connected to AC source or transformer secondary; must withstand full VRRM during reverse bias |
| Cathode | Output terminal for rectified DC current | Connected to bulk capacitor or downstream converter; polarity band identifies this terminal visually |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance without hermetic sealing |
| Fast recovery (500 ns) | Reduces switching losses and EMI generation compared to standard rectifiers in high-frequency SMPS |
| Low IR (≤5 µA @ 25°C) | Preserves efficiency in high-impedance hold-up or snubber circuits |
| DO-214AC (SMA) package | Enables automated pick-and-place assembly and meets IPC-7351B footprint standards |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental directives for industrial and consumer end equipment |
Applications
| AC/DC Front-End Rectification | High-Voltage DC-DC Converter Input |
|---|---|
Use Scenario: Rectifying 230 VAC mains input in offline flyback or LLC resonant converters. IC Role / Device Role / Timing Role: Primary unidirectional current path converting AC to pulsating DC before bulk filtering. Use Value: 1000 V VRRM provides 2× safety margin over 230 VAC peak (≈325 V), reducing risk of avalanche failure during line surges. | Use Scenario: Input stage of isolated 400 V DC-DC boost converters used in telecom or server PSUs. IC Role / Device Role / Timing Role: High-voltage bridge leg component handling 400–800 V DC bus transients. Use Value: 500 ns trr limits reverse recovery charge (Qrr), minimizing switching node ringing and MOSFET stress during turn-on. |
| PFC Boost Diode | Industrial Inverter Auxiliary Supply |
Use Scenario: Output diode in active PFC boost stages operating at 65–100 kHz. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during MOSFET off-time; blocks reverse current during on-time. Use Value: 10 pF CJ reduces capacitive feedthrough into gate drivers, improving stability of critical timing loops. | Use Scenario: Isolated auxiliary power supply for gate drivers in 600–1200 V IGBT-based motor drives. IC Role / Device Role / Timing Role: High-reliability rectifier delivering stable +15 V bias to isolated driver ICs. Use Value: Glass passivation and JESD201 Class 1 whisker resistance ensure >10-year field life under thermal cycling and vibration stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | 600 V VRRM, 2 A, 60 ns trr, TO-220AC package | Lower voltage rating; requires redesign for 1000 V systems; higher thermal mass but no SMT compatibility | Select when ultra-fast recovery (<100 ns) is prioritized over voltage rating and board space |
| ES2J | 600 V VRRM, 2 A, 35 ns trr, DO-214AC (SMA) package | Same footprint but insufficient VRRM for 1000 V designs; better for 230 VAC-derived 400 V bus | Choose only if system maximum reverse voltage remains ≤600 V and faster trr justifies reduced margin |
Compared with STTH2R06 and ES2J, the RS2MA-T uniquely delivers 1000 V blocking capability in an SMT DO-214AC package with balanced 500 ns recovery-enabling compact, high-voltage front-end designs without through-hole compromises or voltage derating.
Availability
RS2MA-T is available at Aetrix Electronics and suitable for AC/DC front-end rectification, high-voltage DC-DC converter input, and PFC boost diode applications requiring stable component supply across industrial, telecom, and server power designs.
Supply support for RS2MA-T 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 devices, and MOSFETs since 1979.
The RS2MA-T belongs to TSC's RS2x series of fast recovery rectifiers, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC conversion in industrial-grade power supplies.
FAQ
What is the maximum repetitive peak reverse voltage rating for RS2MA-T?
The RS2MA-T has a maximum repetitive peak reverse voltage (VRRM) of 1000 V, verified per TSC D2111 datasheet Section "Absolute Maximum Ratings." This rating applies under standard test conditions (TA = 25°C) and defines the highest transient reverse voltage the device can block repeatedly without breakdown. Designers should maintain ≥20% margin below this value in final layouts to accommodate line surges and ringing.
Does RS2MA-T support automated SMT assembly?
Yes, RS2MA-T is qualified for automated surface-mount placement per its DO-214AC (SMA) package and matte tin-plated leads compliant with J-STD-002 solderability requirements. Its moisture sensitivity level is rated Level 1 (unlimited floor life at ≤30°C/85% RH), eliminating bake requirements prior to reflow. The cathode band marking ensures consistent orientation during vision-guided placement.
What is the reverse recovery time (trr) of RS2MA-T and how is it measured?
The RS2MA-T has a reverse recovery time (trr) of 500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A per TSC D2111 datasheet Section "Electrical Specifications." This parameter reflects the time required for minority carriers to clear the junction after forward conduction, directly impacting switching loss and EMI in high-frequency converters.
Is RS2MA-T RoHS and halogen-free compliant?
Yes, RS2MA-T is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of the TSC D2111 datasheet. The molding compound meets UL 94V-0 flammability rating, and all materials are subject to TSC's substance restriction policy, making it suitable for consumer, industrial, and automotive-qualified power supply designs.
What thermal resistance values apply to RS2MA-T in standard PCB mounting?
When mounted on a standard 5 mm × 5 mm copper pad per JEDEC test board guidelines, RS2MA-T exhibits RθJL = 14 °C/W (junction-to-lead), RθJC = 23 °C/W (junction-to-case), and RθJA = 86 °C/W (junction-to-ambient). These values enable accurate thermal modeling for 2 A continuous operation up to 150 °C junction temperature in well-designed layouts.
RS2MA-T 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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS2MA-T FAQ
1.How can I place an order for RS2MA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MA-T 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-T reliable?
The price and inventory of RS2MA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MA-T is usually 5 days.
3.What payment methods are accepted for RS2MA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MA-T?
RS2MA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MA-T 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-T?
For technical support, including RS2MA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MA-T requirements.
6.How does Aetrix verify that RS2MA-T is sourced from the original manufacturer or authorized distributors?
All RS2MA-T 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-T meets industry standards.
7.What is the process for return or replacement of RS2MA-T?
All RS2MA-T units undergo pre-shipment inspection (PSI). If there is an issue with RS2MA-T, 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-T part is unused and in its original packaging.
Return procedure for RS2MA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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