Taiwan Semiconductor Corporation RS2MAHR3G
- Part No.:
- RS2MAHR3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RS2MAHR3G.pdf
- Description:
- DIODE GEN PURP 1KV 1.5A DO214AC
- Quantity:
- Payment:

- Shipping:

Inventory:3,171
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RS2MAHR3G from Taiwan Semiconductor is a 1.5A, 1000V fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and 5 µA max reverse leakage at 25°C. It serves as a primary output rectifier in high-voltage DC-DC converters and snubber circuits.
For engineers reviewing the RS2MAHR3G datasheet, RS2MAHR3G pinout, RS2MAHR3G application, or RS2MAHR3G equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), surge current rating (50 A), thermal resistance (18 °C/W junction-to-lead), and RoHS/halogen-free compliance for industrial power designs.
Technical Context
This single-die fast recovery rectifier uses glass-passivated junction technology to achieve stable switching performance across -55°C to +175°C operating range. Its 500 ns trr and low 50 pF junction capacitance support efficient operation in high-frequency switching topologies above 100 kHz.
The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity, enabling direct use in automated SMT assembly without baking. Cathode band polarity marking and matte tin-plated leads ensure reliable solderability per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification in 800 V AC line-derived supplies or high-voltage DC bus applications |
| IF | 1.5 A continuous - rated for sustained conduction in medium-power SMPS output stages |
| IFSM | 50 A - withstands inrush and transient surges in offline converter startup or fault conditions |
| trr | 500 ns - enables efficient operation in 50–200 kHz flyback and forward converters |
| RθJL | 18 °C/W - allows direct thermal coupling to PCB copper for passive heatsinking in compact layouts |
| IR @ 25°C | 5 µA - ensures minimal standby power loss in high-impedance bias networks |
| TJ max | +175°C - supports operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicated band; molded plastic body meets UL 94V-0; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to unregulated DC or transformer secondary; accepts reverse-biased voltage up to 1000 V |
| Cathode | Output current terminal | Delivers rectified current to filter capacitor or load; marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability under thermal cycling and humidity exposure in industrial power modules |
| Fast recovery (500 ns) | Reduces switching losses and EMI generation compared to standard recovery diodes in 100+ kHz converters |
| J-STD-020 Level 1 MSL | Eliminates pre-bake requirement for SMT reflow, reducing manufacturing cost and cycle time |
| RoHS & halogen-free | Meets IPC-1752A reporting requirements and EU Directive 2011/65/EU for green electronics production |
| Matte tin-plated leads | Guarantees consistent wetting and intermetallic formation during lead-free (SnAgCu) reflow soldering |
Applications
| High-Voltage DC-DC Converter | Snubber Network |
|---|---|
Use Scenario: Secondary-side rectification in isolated 48 V–400 V output DC-DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Fast recovery rectifier handling 1.5 A average output current with minimal conduction and switching loss. Use Value: 1000 V VRRM and 500 ns trr enable safe operation with 1.5× voltage margin and reduced RCD snubber dissipation. | Use Scenario: Clamp diode in RCD snubber circuits across MOSFETs in flyback or forward converters operating at 65–130 kHz. IC Role / Device Role / Timing Role: Transient voltage clamp that conducts only during MOSFET turn-off spikes. Use Value: Low IR (5 µA) prevents DC leakage in hold-up networks; fast trr avoids false triggering during high dv/dt events. |
| Lighting Ballast | Industrial Inverter Output Stage |
Use Scenario: Input rectification in electronic ballasts for HID and LED street lighting powered from 277 V AC mains. IC Role / Device Role / Timing Role: Bridge or single-phase rectifier converting AC line to bulk DC with high temperature resilience. Use Value: +175°C TJ max and 18 °C/W RθJL allow direct mounting on metal-core PCBs without additional heatsinks. | Use Scenario: Freewheeling path in three-phase IGBT-based motor drives for HVAC and pump control. IC Role / Device Role / Timing Role: Anti-parallel freewheeling diode providing current recirculation during PWM dead-time intervals. Use Value: 50 A IFSM rating handles regenerative energy spikes during rapid deceleration without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1.0 A IF, 75 ns trr, TO-277 package | Limited to ≤600 V systems; faster recovery but lower current and voltage rating | Select when higher speed is critical and system voltage stays below 420 V DC |
| ES1J-M3/5AT | 600 V VRRM, 1.0 A IF, 35 ns trr, SMA package | Lower voltage rating and current capacity; optimized for <100 kHz signal rectification | Prefer for low-power auxiliary supplies where ultra-fast recovery outweighs voltage margin needs |
Compared with RS2MAHR3G, STTH1L06S offers faster switching but sacrifices 400 V voltage headroom and 0.5 A current capability, while ES1J-M3/5AT matches the SMA footprint but cannot replace RS2MAHR3G in 1000 V applications due to its 600 V limit.
Availability
RS2MAHR3G is available at Aetrix Electronics and suitable for high-voltage DC-DC converters, industrial inverters, and lighting ballasts requiring stable component supply and long-lifecycle availability.
Supply support for RS2MAHR3G 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 electronics and automotive markets since 1979.
The RS2xx series was designed specifically for high-reliability, high-voltage rectification in industrial switch-mode power supplies, emphasizing thermal robustness, automated assembly compatibility, and long-term parametric stability.
FAQ
What is the maximum repetitive peak reverse voltage rating for RS2MAHR3G?
The RS2MAHR3G has a maximum repetitive peak reverse voltage (VRRM) of 1000 V, verified per Taiwan Semiconductor's official datasheet revision I2304. This rating defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown. Engineers must ensure system-level transient overvoltage margins remain within this limit to prevent catastrophic failure of RS2MAHR3G in high-line applications.
Does RS2MAHR3G meet RoHS and halogen-free requirements?
Yes, RS2MAHR3G is RoHS compliant and halogen-free, as confirmed in the "Features" section of the official Taiwan Semiconductor datasheet. The molding compound contains no brominated or chlorinated flame retardants, and all homogeneous materials comply with EU Directive 2011/65/EU Annex II concentration limits. This makes RS2MAHR3G suitable for green electronics manufacturing and export to regulated markets.
What is the reverse recovery time (trr) specification for RS2MAHR3G?
The reverse recovery time (trr) for RS2MAHR3G is 500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions per the Electrical Specifications table. This value reflects the time required for the device to transition from conduction to blocking state, directly impacting switching loss and EMI in high-frequency converters. RS2MAHR3G's 500 ns trr is typical for 1000 V fast recovery diodes and is validated across temperature and current test points.
Is RS2MAHR3G compatible with lead-free reflow soldering processes?
Yes, RS2MAHR3G features matte tin-plated leads qualified per J-STD-002 for solderability and is rated for lead-free reflow profiles including peak temperatures up to 260°C. Its J-STD-020 Level 1 moisture sensitivity level eliminates the need for pre-baking, supporting direct placement into standard SnAgCu reflow ovens. This ensures robust intermetallic formation and joint integrity when assembling RS2MAHR3G onto PCBs.
What thermal resistance values apply to RS2MAHR3G in its DO-214AC package?
RS2MAHR3G exhibits a junction-to-lead thermal resistance (RθJL) of 18 °C/W and a junction-to-ambient resistance (RθJA) of 55 °C/W, per the Thermal Performance table. These values assume standard PCB layout with 1-inch² 2-oz copper pad per lead. RθJL is critical for estimating die temperature rise under conduction loss; for example, 1.5 A × 1.3 V = 1.95 W loss yields ~35°C rise above lead temperature, making RS2MAHR3G viable in thermally constrained spaces.
RS2MAHR3G 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):
- 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
RS2MAHR3G FAQ
1.How can I place an order for RS2MAHR3G through Aetrix?
Please submit a Request for Quotation (RFQ) for RS2MAHR3G 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 RS2MAHR3G reliable?
The price and inventory of RS2MAHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2MAHR3G is usually 5 days.
3.What payment methods are accepted for RS2MAHR3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2MAHR3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS2MAHR3G?
RS2MAHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS2MAHR3G 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 RS2MAHR3G?
For technical support, including RS2MAHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2MAHR3G requirements.
6.How does Aetrix verify that RS2MAHR3G is sourced from the original manufacturer or authorized distributors?
All RS2MAHR3G 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 RS2MAHR3G meets industry standards.
7.What is the process for return or replacement of RS2MAHR3G?
All RS2MAHR3G units undergo pre-shipment inspection (PSI). If there is an issue with RS2MAHR3G, 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 RS2MAHR3G part is unused and in its original packaging.
Return procedure for RS2MAHR3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RS2MAHR3G Tags

-
1N4448X-TP
Micro Commercial Co

-
1N4148WX-TP
Micro Commercial Co

-
1N4148TR
onsemi

-
MMSD4148T1G
onsemi

-
MMBD914LT3G
onsemi

-
BAS16HT1G
onsemi

-
1N914BWT
onsemi

-
BAS21LT1G
onsemi

-
LL4148
onsemi

-
BAS16LT1G
onsemi

-
MMSD914T1G
onsemi

-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
