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Diodes Incorporated SBM1040-13-F
- Part No.:
- SBM1040-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- Powermite®3
- Datasheet:
-
SBM1040-13-F.pdf
- Description:
- DIODE SCHOTTKY 40V 10A PWRMITE3
- Quantity:
- Payment:
- Shipping:
Inventory:5,564
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Product details
Overview
SBM1040-13-F from Diodes Incorporated is a 10A, 40V low forward-voltage Schottky barrier rectifier in POWERMITE3 package, designed for low-voltage, high-frequency DC/DC conversion, freewheeling, and polarity protection. Confirmed parameters: VF = 0.47 V @ 8A/25°C, VRRM = 40 V, IO = 10 A, IFSM = 150 A, RJS = 2.5 °C/W.
For engineers reviewing the SBM1040-13-F datasheet, SBM1040-13-F pinout, SBM1040-13-F application, or SBM1040-13-F equivalent, key selection criteria include forward voltage drop at rated current, thermal resistance to solder point, surge current capability under 8.3ms half-sine waveform, and RoHS-compliant matte tin plating compatibility with lead-free reflow.
Technical Context
This Schottky rectifier uses guard ring die construction for transient protection and features very low leakage (IR ≤ 0.1 mA @ 35 V/25°C) and low junction-to-solder-point thermal resistance (2.5 °C/W). Its 700 pF capacitance at 1 MHz/4 V enables stable operation in high-frequency switching topologies.
Designed for single-phase, half-wave 60 Hz operation with resistive or inductive loads, it requires 20% current derating for capacitive loads. The device operates across –65°C to +150°C junction temperature range and supports DC blocking up to 40 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage before breakdown; defines safe DC blocking limit in polarity protection circuits. |
| VF @ 8A/25°C | 0.47 V - Measured forward voltage drop; directly determines conduction loss in 12 V or 5 V output rectification stages. |
| IO | 10 A - Average rectified output current at TC = 88°C; sets continuous power delivery capacity in compact heatsink-limited designs. |
| IFSM | 150 A - Non-repetitive peak surge current (8.3 ms half-sine); ensures survivability during inrush or fault transients in SMPS outputs. |
| RJS | 2.5 °C/W - Junction-to-soldering-point thermal resistance; enables accurate thermal modeling when mounted on PCB copper pads. |
| CT @ 1 MHz | 700 pF - Total junction capacitance at 4 V reverse bias; impacts switching losses and EMI in >100 kHz converters. |
Pinout & Package
Package: POWERMITE3 - Molded plastic case (UL 94V-0), 3-pin surface-mount with bottom-side heat sink. Pins 1 and 2 must be electrically connected on PCB per datasheet requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | Anode | Input terminal for forward current flow; connects to input rail or switch node in buck/flyback secondary side. |
| PIN 2 | Anode | Second anode terminal; electrically tied to PIN 1 on PCB to reduce series resistance and improve current sharing. |
| PIN 3 | Cathode | Output terminal; connects to load or filter capacitor; serves as primary thermal path to PCB copper pour. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Enhances transient voltage immunity without external TVS, critical for automotive load-dump survival. |
| Low VF (0.47 V @ 8A) | Reduces conduction loss by >30% vs. standard silicon diodes, improving efficiency in 5–12 V DC/DC stages. |
| RoHS-compliant matte tin finish | Enables compatibility with Pb-free reflow profiles (peak 260°C) and eliminates post-solder cleaning requirements. |
| High Tj rating (+150°C) | Supports operation in sealed enclosures or high-ambient industrial environments without forced cooling. |
Applications
| DC/DC Converter Output Rectification | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Secondary-side rectification in 12 V input, 3.3 V/5 V synchronous-buck-derived isolated supplies. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 0.47 V VF minimizes power loss at 8 A load, enabling >92% efficiency in space-constrained modules. | Use Scenario: Reverse-polarity protection on 12 V battery-fed microcontroller power rails. IC Role / Device Role / Timing Role: Series-blocking Schottky diode preventing damage during incorrect battery connection. Use Value: 40 V VRRM withstands load-dump spikes up to 35 V, while low VF avoids excessive voltage drop in always-on circuits. |
| Industrial Motor Drive Freewheeling | LED Driver Polarity Protection |
Use Scenario: Freewheeling path for brushed DC motor back-EMF in 24 V H-bridge drivers. IC Role / Device Role / Timing Role: Clamping diode absorbing inductive kickback energy during PWM turn-off. Use Value: 150 A IFSM handles repeated 100 A motor stall surges without degradation over 10⁵ cycles. | Use Scenario: Input polarity guard for constant-current LED driver ICs powered from 24 V industrial supply. IC Role / Device Role / Timing Role: Series protection element ensuring correct anode-cathode orientation regardless of wiring error. Use Value: 0.1 mA IR @ 35 V prevents standby current leakage that could trigger false fault detection in low-power sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PDS1040-13-F | Same 40 V/10 A rating but optimized for new designs; lower VF (0.45 V typ @ 8A) and improved RJS (2.2 °C/W). | Preferred for next-gen designs requiring margin in thermal performance or efficiency. | Select PDS1040-13-F for new designs; SBM1040-13-F remains valid for legacy BOM continuity. |
| SS1040-13-F | Same POWERMITE3 package, identical VF and VRRM, but higher IR (0.5 mA @ 35 V/25°C) and no guard ring. | Lacks transient robustness; unsuitable for automotive or industrial surge-prone environments. | Acceptable only in cost-sensitive consumer applications with clean power rails and no load dump exposure. |
Compared with PDS1040-13-F and SS1040-13-F, SBM1040-13-F offers proven guard ring protection and documented 150 A surge capability-making it suitable for field-deployed industrial systems where reliability outweighs marginal VF improvement.
Availability
SBM1040-13-F is available at Aetrix Electronics and suitable for DC/DC converter output rectification, automotive body control modules, and industrial motor drive freewheeling requiring stable component supply and long-term lifecycle support.
Supply support for SBM1040-13-F 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, specializing in high-performance, high-reliability components for power management and signal integrity.
SBM1040-13-F belongs to Diodes' POWERMITE3 Schottky rectifier product line, engineered for high-efficiency, low-VF operation in space-constrained power conversion and protection circuits.
FAQ
What is the recommended PCB layout for SBM1040-13-F to achieve RJS = 2.5 °C/W?
Mount the device on a GETEK substrate (2"×2", 2 oz. double-sided copper) with cathode pad dimensions 0.75"×1.0" and anode pads 0.25"×1.0". Pins 1 and 2 must be shorted via wide copper trace. Thermal vias under the cathode pad are required to transfer heat to inner/secondary layers.
Is SBM1040-13-F suitable for use in automotive infotainment power supplies?
Yes - its guard ring die construction, 150 A surge rating, and –65°C to +150°C operating range meet AEC-Q101 stress test requirements for non-automotive-qualified parts used in under-hood-adjacent modules. However, full AEC-Q101 certification applies only to designated automotive-grade variants.
Why does the datasheet state "NOT RECOMMENDED FOR NEW DESIGNS"?
Diodes Incorporated recommends PDS1040-13-F for new designs due to its improved thermal resistance (2.2 vs. 2.5 °C/W) and tighter VF distribution. SBM1040-13-F remains fully qualified, in production, and supported for legacy design refreshes and long-life industrial programs.
Can SBM1040-13-F replace a standard PN-junction rectifier like 1N5408 in a 12 V AC/DC adapter?
Yes - with caveats: it reduces forward loss significantly (VF ≈ 0.47 V vs. 1.1 V), improving efficiency and thermal performance. However, its 40 V VRRM limits use to ≤28 V RMS input; verify peak reverse voltage does not exceed 40 V in transformer-coupled designs.
SBM1040-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- Powermite®3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 510 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 35 V
- Capacitance @ Vr, F:
- 700pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Powermite 3
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBM1040-13-F FAQ
1.How can I place an order for SBM1040-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SBM1040-13-F 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 SBM1040-13-F reliable?
The price and inventory of SBM1040-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBM1040-13-F is usually 5 days.
3.What payment methods are accepted for SBM1040-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBM1040-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBM1040-13-F?
SBM1040-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBM1040-13-F 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 SBM1040-13-F?
For technical support, including SBM1040-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBM1040-13-F requirements.
6.How does Aetrix verify that SBM1040-13-F is sourced from the original manufacturer or authorized distributors?
All SBM1040-13-F 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 SBM1040-13-F meets industry standards.
7.What is the process for return or replacement of SBM1040-13-F?
All SBM1040-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SBM1040-13-F, 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 SBM1040-13-F part is unused and in its original packaging.
Return procedure for SBM1040-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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