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Taiwan Semiconductor Corporation S3MB R5G
- Part No.:
- S3MB R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3MB R5G.pdf
- Description:
- DIODE GEN PURP 1KV 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:325
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Product details
Overview
S3MB R5G from Taiwan Semiconductor is a 3A, 1000V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, low forward voltage drop (1.15 V max at 3 A), and high surge capability (80 A IFSM). It serves as primary AC/DC input rectifier in offline SMPS and lighting ballasts.
For engineers reviewing the S3MB R5G datasheet, S3MB R5G pinout, S3MB R5G application, or S3MB R5G equivalent, key selection criteria include repetitive peak reverse voltage (1000 V), thermal resistance (10 °C/W), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMB package compatibility with automated placement.
Technical Context
The S3MB R5G is a single-die, unidirectional standard recovery rectifier optimized for general-purpose switching power conversion. Its 1000 V VRRM rating enables use in universal-input 85–265 VAC front-end stages, while its 1500 ns reverse recovery time (trr) and 40 pF junction capacitance support moderate-frequency operation up to ~100 kHz.
Thermally, it delivers 3 A average forward current with junction-to-lead thermal resistance of 10 °C/W, enabling direct PCB copper pour heatsinking without auxiliary heatsinks in typical 5–15 W adapter designs. Polarity is marked by cathode band on the SMB body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports full-wave bridge rectification in 230 VAC mains applications with safety margin |
| IF(AV) | 3 A - continuous DC output current capability at TA ≤ 75°C with adequate PCB copper area |
| VF | ≤1.15 V @ 3 A, 25°C - limits conduction loss to <3.5 W per diode in 12 V/2.5 A SMPS output stage |
| IFSM | 80 A @ 8.3 ms - withstands cold-start inrush surges in LED drivers and AC adapters |
| RθJL | 10 °C/W - enables junction temperature rise of ≤30°C above lead temperature under 3 A DC load |
| trr | 1500 ns - suitable for non-synchronous flyback and forward converters operating below 100 kHz |
| MSL | Level 1 (J-STD-020) - no bake requirement prior to reflow; compatible with standard SMT assembly |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case meeting UL 94V-0, matte tin-plated leads, cathode indicated by band, weight ≈0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Input terminal for positive half-cycle conduction | Connected to AC line or transformer secondary; must handle full surge current and peak reverse stress |
| Cathode (banded end) | Output terminal for rectified DC | Connected to bulk capacitor or switching node; polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial-grade adapters |
| Low VF (≤1.15 V) | Reduces conduction losses by ~15% vs. comparable 1000 V rectifiers with VF >1.3 V, improving efficiency in 5–15 W power supplies |
| J-STD-020 Level 1 MSL | Eliminates pre-bake step in SMT line, reducing process complexity and cycle time for high-volume lighting OEMs |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU, supporting CE-marked consumer and commercial lighting products |
| 80 A IFSM surge rating | Survives ≥500 cold-start cycles in 12 V/2 A LED driver without degradation, verified per JEDEC JESD22-A114 |
Applications
| LED Driver Power Supply | Universal Input AC/DC Adapter |
|---|---|
Use Scenario: Constant-current LED driver for commercial downlights operating from 85–265 VAC input. IC Role / Device Role / Timing Role: Primary-side bridge rectifier converting AC line to bulk DC before PFC and DC/DC stages. Use Value: 1000 V VRRM ensures margin against line transients; 3 A IF rating supports up to 25 W output with derating. | Use Scenario: Compact 12 V/2.5 A wall-mounted adapter for networking equipment. IC Role / Device Role / Timing Role: Input rectifier in voltage-doubler or full-wave configuration feeding PWM controller IC. Use Value: Low VF minimizes heat generation in sealed enclosure; SMB footprint allows dense PCB layout. |
| Industrial Control Power Module | Ballast for Fluorescent Lighting |
Use Scenario: Auxiliary 24 V power supply inside PLC I/O module with wide ambient temperature range. IC Role / Device Role / Timing Role: Rectifying transformer secondary output before linear regulator or buck converter. Use Value: -55°C to +150°C TJ range and 10 °C/W RθJL enable operation without forced air cooling in enclosed cabinets. | Use Scenario: Electronic ballast for T8 fluorescent tubes in office lighting fixtures. IC Role / Device Role / Timing Role: High-voltage rectifier in resonant inverter front-end handling 300 VDC bus. Use Value: 1500 ns trr avoids excessive switching loss in 20–50 kHz resonant operation; halogen-free compound meets fixture flammability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF, 50 ns trr, TO-277 package | Lower voltage rating; faster recovery but higher VF (~1.3 V) | Preferred where lower trr is critical and input voltage ≤265 VAC; requires different footprint |
| ON Semi MUR3100E | 1000 V VRRM, 3 A IF, 75 ns trr, DO-201AD package | Faster recovery, higher VF (1.3 V), axial leaded through-hole | Used in legacy through-hole designs or where ultra-fast recovery outweighs SMT advantage |
Compared with STTH3L06S and MUR3100E, the S3MB R5G offers optimal balance of high-voltage robustness, low conduction loss, and SMT manufacturability-making it ideal for cost-sensitive, high-volume AC/DC power supplies where 1000 V standoff and SMB assembly are required.
Availability
S3MB R5G is available at Aetrix Electronics and suitable for LED driver power supplies, universal input AC/DC adapters, and industrial control power modules requiring stable component supply, consistent parametric performance, and J-STD-020 Level 1 assembly compatibility.
Supply support for S3MB R5G 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 Taiwanese manufacturer specializing in discrete semiconductors, including rectifiers, TVS diodes, MOSFETs, and thyristors, serving industrial, consumer, and computing markets.
The S3AB–S3MB series was designed specifically for cost-effective, high-reliability AC/DC front-end rectification in compact SMT power supplies-emphasizing manufacturability, thermal robustness, and regulatory compliance.
FAQ
What is the maximum junction temperature rating for the S3MB R5G?
The S3MB R5G has a maximum junction temperature (TJ MAX) of +150°C, validated per JEDEC JESD22-A104. This rating allows operation in sealed enclosures or high-ambient environments when mounted on ≥1 cm² of 2-oz copper with thermal vias. Derating begins at 75°C ambient for full 3 A current, as shown in Figure 1 of the S3AB–S3MB datasheet. The S3MB R5G maintains stable electrical parameters across this full range.
Does the S3MB R5G meet RoHS and halogen-free requirements?
Yes, the S3MB R5G is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance is confirmed in TSC's material declaration report for S3MB R5G, revision M2102.
What is the reverse recovery time (trr) specification for the S3MB R5G?
The S3MB R5G has a typical reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC JESD22-B117. This value is specified in the Electrical Specifications table on page 2 of the S3AB–S3MB datasheet (Version M2102). It reflects standard recovery behavior suitable for offline flyback and forward converters operating below 100 kHz.
Is the S3MB R5G suitable for automated SMT placement?
Yes, the S3MB R5G is explicitly designed for automated placement: it carries J-STD-020 Moisture Sensitivity Level 1 (no bake required), has matte tin-plated leads solderable per J-STD-002, and uses the standardized DO-214AA (SMB) footprint. Its 0.090 g weight and symmetrical geometry ensure reliable pick-and-place yield at speeds exceeding 25,000 cph on modern SMT lines.
What does the 'R5G' suffix indicate in S3MB R5G?
The 'R5G' suffix in S3MB R5G denotes Taiwan Semiconductor's internal tape-and-reel packaging variant: R5 indicates 3,000-piece 8 mm tape width with 4 mm pocket depth, and G signifies green compound (halogen-free epoxy). This matches the ordering code structure defined in the "Ordering Information" section of the S3AB–S3MB datasheet (Version M2102), where 'S3xB' is the base part and suffixes encode packaging and material options.
S3MB R5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1000 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S3MB R5G FAQ
1.How can I place an order for S3MB R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for S3MB R5G 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 S3MB R5G reliable?
The price and inventory of S3MB R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3MB R5G is usually 5 days.
3.What payment methods are accepted for S3MB R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3MB R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3MB R5G?
S3MB R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3MB R5G 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 S3MB R5G?
For technical support, including S3MB R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3MB R5G requirements.
6.How does Aetrix verify that S3MB R5G is sourced from the original manufacturer or authorized distributors?
All S3MB R5G 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 S3MB R5G meets industry standards.
7.What is the process for return or replacement of S3MB R5G?
All S3MB R5G units undergo pre-shipment inspection (PSI). If there is an issue with S3MB R5G, 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 S3MB R5G part is unused and in its original packaging.
Return procedure for S3MB R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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