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Diodes Incorporated S3MB-13
- Part No.:
- S3MB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
S3MB-13.pdf
- Description:
- DIODE GEN PURP 1KV 3A SMB
- Quantity:
- Payment:
- Shipping:
Inventory:9,362
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Product details
Overview
S3MB-13 from Diodes Incorporated is a 3.0A, 1000V peak repetitive reverse voltage (VRRM) surface-mount glass passivated rectifier diode in SMB package, with 1.15V forward voltage at 3.0A, 100A non-repetitive surge capability, and −65°C to +150°C operating temperature range-used in AC/DC front-end rectification for industrial power supplies.
For engineers reviewing the S3MB-13 datasheet, S3MB-13 pinout, S3MB-13 application, or S3MB-13 equivalent, key selection criteria include VRRM rating, thermal resistance (10°C/W), forward voltage drop, surge robustness (100A @ 8.3ms), and RoHS-compliant lead-free plating suitability for automated SMT assembly.
Technical Context
This device is a single-phase, silicon planar junction rectifier with glass passivation for enhanced reliability under high-voltage transients and thermal cycling. Its construction supports operation up to 150°C junction temperature and delivers stable reverse leakage (<250 µA at 125°C) across its full rated blocking voltage.
The SMB package provides standardized mechanical dimensions (3.30–3.94 mm length, 4.06–4.57 mm width) and solderable matte tin terminals compliant with MIL-STD-202 Method 208. Thermal performance relies on PCB copper pad area (5.0 mm², 0.013 mm thick) for effective junction-to-terminal heat dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse transients up to 1 kV without breakdown in AC line rectification. |
| IO | 3.0 A @ TT = 75°C - Continuous average forward current rating under standard heatsinking conditions. |
| VFM | 1.15 V @ IF = 3.0A - Low conduction loss enabling efficient power conversion and reduced thermal stress. |
| IFSM | 100 A @ 8.3 ms half-sine - Handles inrush and surge events common in offline SMPS input stages. |
| RJT | 10 °C/W - Quantifies thermal path efficiency from junction to PCB pad; enables accurate thermal design with 5 mm² copper. |
| Tj/TSTG | −65°C to +150°C - Supports operation in harsh environments including industrial motor drives and outdoor power systems. |
| CT | 40 pF @ 1 MHz, 4 V reverse - Minimal junction capacitance preserves high-frequency switching integrity in snubberless designs. |
Pinout & Package
SMB (DO-214AA) surface-mount package: molded plastic case, UL 94V-0 rated, cathode band marking, solderable matte tin terminals. Dimensions: A = 3.30–3.94 mm, B = 4.06–4.57 mm, C = 1.96–2.21 mm, E = 5.00–5.59 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to AC input or transformer secondary; must withstand full surge current and reverse recovery stress. |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to bulk capacitor positive rail; carries full output current and defines reverse voltage reference. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated die | Prevents moisture ingress and surface contamination, extending life in humid or dusty industrial enclosures. |
| Low VF (1.15 V) | Reduces conduction loss by ~15% vs. legacy 1.35 V rectifiers at 3A, lowering heatsink requirements. |
| 100A surge rating | Survives cold-start inrush in 230VAC systems without derating or parallel devices. |
| RoHS-compliant lead-free finish | Enables compliance with EU WEEE/RoHS directives and compatibility with Pb-free reflow profiles (J-STD-020C Level 1). |
| Standard SMB footprint | Interchangeable with industry-standard DO-214AA layouts, simplifying PCB redesign and second-source qualification. |
Applications
| Industrial AC/DC Power Supplies | LED Driver Input Rectification |
|---|---|
Use Scenario: Front-end bridge rectification in 100–300W industrial switch-mode power supplies operating from 85–264VAC input. IC Role / Device Role / Timing Role: Primary rectifier converting AC line to unregulated DC bus; handles full input current and transient surges. Use Value: 1000V VRRM ensures margin against 264VAC × √2 ≈ 373V peak plus line spikes; low RJT enables compact thermal layout. | Use Scenario: Single-diode half-wave rectification in cost-sensitive, isolated LED drivers for street lighting. IC Role / Device Role / Timing Role: Input-stage rectifier feeding bulk capacitor; operates at 50/60Hz with minimal ripple contribution. Use Value: 3.0A IO supports up to 150W output; 40pF CT avoids EMI coupling into downstream PWM controller. |
| Motor Drive Auxiliary Power | UPS Input Stage Protection |
Use Scenario: Auxiliary bias supply rectification in variable-frequency drives powering HVAC compressors. IC Role / Device Role / Timing Role: Converts transformer-isolated AC to DC for gate driver ICs and control logic. Use Value: −65°C to +150°C rating accommodates ambient + self-heating in enclosed drive cabinets; 100A IFSM absorbs regenerative energy spikes. | Use Scenario: Input rectifier in online UPS systems requiring high reliability during grid instability. IC Role / Device Role / Timing Role: First-line rectification before PFC stage; exposed to frequent brownouts and overvoltage events. Use Value: Glass passivation prevents leakage degradation under long-term humidity exposure; RoHS finish ensures long-term solder joint integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ES3MB-13 (Diodes Inc.) | Same SMB package, but epoxy-passivated (not glass); slightly higher VF (1.25V) and lower IFSM (80A). | Limited to less demanding surge environments; not recommended for high-reliability industrial mains input. | Select S3MB-13 where glass passivation and 100A surge margin are required for field-deployed equipment. |
| SB3100 (ON Semiconductor) | SMB package, 1000V VRRM, but 3.0A IO rated at 100°C (not 75°C); VF = 1.1V; RJT = 12°C/W. | Better high-temp current rating but higher thermal resistance; requires larger copper area for same Tj. | Choose SB3100 only if system ambient exceeds 75°C and board layout allows ≥7 mm² copper pad. |
Compared with ES3MB-13 and SB3100, S3MB-13 uniquely balances 100A surge tolerance, glass passivation reliability, and 10°C/W thermal resistance-making it optimal for space-constrained, high-surge industrial rectifiers where long-term stability is critical.
Availability
S3MB-13 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input rectification, motor drive auxiliary power, and UPS input stage protection requiring stable component supply and RoHS-compliant manufacturing.
Supply support for S3MB-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The S3A/B–S3M/B series targets cost-effective, high-reliability rectification in industrial, consumer, and computing power systems-designed specifically for automated SMT assembly and extended thermal endurance in unventilated enclosures.
FAQ
What is the maximum allowable junction temperature for S3MB-13?
The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation across this full range when mounted on a 5.0 mm² copper pad per datasheet Note 2. Derating begins above 75°C ambient per Figure 1, with IO decreasing linearly to zero at 150°C case temperature.
Is S3MB-13 compatible with lead-free reflow processes?
Yes-S3MB-13 features matte tin lead-free plating and is qualified to J-STD-020C Level 1 moisture sensitivity. It supports standard Pb-free reflow profiles with peak temperatures up to 260°C and is exempt from high-temperature solder restrictions per EU Directive Annex Notes 5 and 7.
How does the glass passivation benefit long-term reliability?
Glass passivation forms a hermetic barrier over the silicon junction, preventing electrochemical corrosion and ion migration caused by humidity, flux residues, or airborne contaminants-critical for 10+ year field life in industrial and outdoor power systems where epoxy-passivated alternatives may degrade.
Can S3MB-13 be used in capacitive-input filter configurations?
No-per datasheet guidance, current must be derated by 20% when used with capacitive loads due to increased peak forward current and associated thermal stress. For such applications, consider higher-current variants like S5MB-13 or parallel diode configurations with appropriate balancing.
S3MB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1000 V
- Capacitance @ Vr, F:
- 40pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMB
- Operating Temperature - Junction:
- -65°C ~ 150°C
S3MB-13 FAQ
1.How can I place an order for S3MB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for S3MB-13 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-13 reliable?
The price and inventory of S3MB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3MB-13 is usually 5 days.
3.What payment methods are accepted for S3MB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3MB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S3MB-13?
S3MB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S3MB-13 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-13?
For technical support, including S3MB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3MB-13 requirements.
6.How does Aetrix verify that S3MB-13 is sourced from the original manufacturer or authorized distributors?
All S3MB-13 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-13 meets industry standards.
7.What is the process for return or replacement of S3MB-13?
All S3MB-13 units undergo pre-shipment inspection (PSI). If there is an issue with S3MB-13, 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-13 part is unused and in its original packaging.
Return procedure for S3MB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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