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Taiwan Semiconductor Corporation RS3MB-T
- Part No.:
- RS3MB-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
RS3MB-T.pdf
- Description:
- DIODE GEN PURP 1KV 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,638
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Product details
Overview
RS3MB-T from Taiwan Semiconductor is a 1000 V repetitive peak reverse voltage, 3 A average forward current fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 500 ns reverse recovery time and 1.13 V typical forward voltage at 3.0 A and 25°C, used in high-voltage DC-DC converters and switching inverters.
For engineers reviewing the RS3MB-T datasheet, RS3MB-T pinout, RS3MB-T application, or RS3MB-T equivalent, key selection criteria include VRRM=1000 V, IFSM=80 A (8.3 ms), TJ max=150°C, RθJA=78°C/W on 10 mm × 10 mm Cu pad, and low IR ≤5 µA at 25°C for high-efficiency power conversion designs.
Technical Context
This device is a single-die, glass-passivated silicon junction rectifier optimized for fast switching in high-frequency power supplies. Its 500 ns trr and 50 pF junction capacitance support operation in SMPS topologies up to several hundred kHz.
The DO-214AA (SMB) package provides robust thermal performance with RθJL=20°C/W and RθJC=26°C/W, enabling reliable conduction at 3 A continuous with proper PCB copper area. Polarity is indicated by cathode band; leads are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input stages of industrial AC-DC front-ends and 800 V bus systems |
| IF(AV) | 3 A - rated continuous forward current at TA=75°C with adequate heatsinking |
| trr | 500 ns - enables efficient operation in 100–300 kHz switch-mode converters |
| VF @ 3A, 25°C | 1.13 V typ - contributes to <1.5 W conduction loss at full load |
| IR @ VRRM, 25°C | ≤5 µA - ensures low standby leakage in high-impedance hold-up circuits |
| RθJA | 78 °C/W - requires ≥10 mm × 10 mm Cu pad for safe operation at 3 A ambient |
| IFSM (8.3 ms) | 80 A - withstands inrush currents in offline SMPS without failure |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicated polarity band; molded compound meets UL 94V-0; weight ≈0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; connects to output rail or filter capacitor positive |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances humidity resistance and long-term reliability in humid environments |
| Moisture sensitivity level 1 | Enables direct placement without baking; compatible with standard SMT reflow |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21; suitable for consumer and industrial green electronics |
| Junction temperature range –55°C to +150°C | Supports operation in automotive under-hood and industrial outdoor enclosures |
| Matte tin-plated leads | Ensures solderability per J-STD-002; prevents whisker growth per JESD 201 Class 1 |
Applications
| Industrial AC-DC Power Supplies | High-Voltage DC-DC Converters |
|---|---|
Use Scenario: Input rectification stage in 3-phase rectifier modules feeding 800 V intermediate bus. IC Role / Device Role / Timing Role: Fast-recovery rectifier handling 3 A average current at 1000 V PIV with minimal switching loss. Use Value: 500 ns trr reduces turn-off energy loss vs. standard rectifiers, improving efficiency by ~0.8% at 200 kHz. | Use Scenario: Output synchronous rectification in isolated flyback or forward converters with 600–1000 V input. IC Role / Device Role / Timing Role: High-voltage freewheeling diode in primary-side clamp or secondary-side snubber networks. Use Value: 1000 V VRRM rating eliminates need for series stacking; 1.13 V VF limits conduction loss to <3.4 W at 3 A. |
| Switching Inverters for Motor Drives | Renewable Energy Interface Systems |
Use Scenario: Freewheeling path in IGBT-based 3-phase inverter bridges driving HVAC compressors. IC Role / Device Role / Timing Role: Fast-recovery anti-parallel diode across high-side switches, conducting during dead-time intervals. Use Value: Low IR (≤5 µA) prevents thermal runaway at elevated junction temperatures; RθJA=78°C/W allows compact layout. | Use Scenario: DC link protection and filtering in solar microinverters interfacing 600–1000 V PV strings. IC Role / Device Role / Timing Role: High-reliability rectifier in MPPT input stage and DC bus conditioning circuits. Use Value: UL 94V-0 molding compound and –55°C to +150°C operation ensure field longevity in outdoor unventilated enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | VRRM=600 V, trr=50 ns, VF=1.15 V @ 3 A, DO-214AA | Limited to ≤600 V systems; faster recovery but lower voltage rating | Select when system VRRM ≤600 V and trr <100 ns is required |
| VS-3EYH02-M3/54 | VRRM=1000 V, trr=35 ns, VF=1.25 V @ 3 A, DO-214AA | Lower trr but higher VF; tighter IR spec (≤2 µA @ 25°C) | Prefer for ultra-fast switching where conduction loss margin permits +0.12 V VF increase |
Compared with STTH3L06S and VS-3EYH02-M3/54, the RS3MB-T offers the highest VRRM (1000 V) among SMB-packaged 3 A fast rectifiers while maintaining balanced trr (500 ns) and VF (1.13 V), making it optimal for cost-sensitive 800–1000 V industrial power stages where moderate speed suffices.
Availability
RS3MB-T is available at Aetrix Electronics and suitable for industrial AC-DC power supplies, high-voltage DC-DC converters, and switching inverters requiring stable component supply and long-lifecycle availability.
Supply support for RS3MB-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, serving global industrial, computing, and consumer markets since 1979.
The RS3MB-T belongs to TSC's RS3x series of fast recovery rectifiers designed specifically for high-efficiency, high-voltage switch-mode power conversion in space-constrained SMB layouts.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for RS3MB-T?
The RS3MB-T has a VRRM rating of 1000 V, confirmed in the Absolute Maximum Ratings table for the RS3MB-T variant. This value is specific to the RS3MB-T marking code and distinguishes it from lower-voltage variants like RS3DB-T (200 V) and RS3KB-T (800 V). The 1000 V rating enables use in 800 V nominal bus systems with sufficient safety margin.
What is the reverse recovery time (trr) of RS3MB-T and how is it measured?
The RS3MB-T has a maximum 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 the Electrical Specifications table. This value applies specifically to RS3KB-T and RS3MB-T variants and reflects their optimized carrier lifetime for high-voltage fast recovery operation.
Is RS3MB-T RoHS and halogen-free compliant?
Yes, RS3MB-T is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the datasheet. This compliance applies to the entire RS3DB-T through RS3MB-T family and is verified for the RS3MB-T variant via material declarations and manufacturing process controls.
What is the thermal resistance from junction to ambient (RθJA) for RS3MB-T?
The RS3MB-T has a junction-to-ambient thermal resistance (RθJA) of 78°C/W when mounted on a 10 mm × 10 mm copper pad test board, as specified in the THERMAL PERFORMANCE section. This value is consistent across the RS3DB-T to RS3MB-T family and assumes standard JEDEC-compliant PCB layout conditions.
Does RS3MB-T have moisture sensitivity level (MSL) rating and what does it mean for assembly?
RS3MB-T has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/85% RH and placed directly into reflow without baking. This MSL rating is confirmed in the FEATURES section and applies to all variants in the RS3x-T series, simplifying SMT line integration.
RS3MB-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 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-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
RS3MB-T FAQ
1.How can I place an order for RS3MB-T through Aetrix?
Please submit a Request for Quotation (RFQ) for RS3MB-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 RS3MB-T reliable?
The price and inventory of RS3MB-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS3MB-T is usually 5 days.
3.What payment methods are accepted for RS3MB-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS3MB-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RS3MB-T?
RS3MB-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RS3MB-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 RS3MB-T?
For technical support, including RS3MB-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS3MB-T requirements.
6.How does Aetrix verify that RS3MB-T is sourced from the original manufacturer or authorized distributors?
All RS3MB-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 RS3MB-T meets industry standards.
7.What is the process for return or replacement of RS3MB-T?
All RS3MB-T units undergo pre-shipment inspection (PSI). If there is an issue with RS3MB-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 RS3MB-T part is unused and in its original packaging.
Return procedure for RS3MB-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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