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Diodes Incorporated SDM2L40P1-7
- Part No.:
- SDM2L40P1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- POWERDI®123
- Datasheet:
-
SDM2L40P1-7.pdf
- Description:
- DIODE SCHOTTKY 40V 2A PWRDI123
- Quantity:
- Payment:
- Shipping:
Inventory:9,199
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Product details
Overview
SDM2L40P1-7 from Diodes Incorporated is a 40 V, 2.0 A surface-mount Schottky barrier rectifier in PowerDI123 package, optimized for automotive polarity protection and recirculating diode applications with 0.50 V max forward voltage at 2.0 A and 0.1 mA max reverse leakage at 40 V and +25°C.
For engineers reviewing the SDM2L40P1-7 datasheet, SDM2L40P1-7 pinout, SDM2L40P1-7 application, or SDM2L40P1-7 equivalent, this device offers verified thermal resistance (RθJA = 60 °C/W), 60 A non-repetitive surge rating, and RoHS-compliant green packaging suitable for high-reliability automotive power rails.
Technical Context
This Schottky rectifier employs guard ring die construction to suppress transient-induced failure and patented interlocking clip design to sustain 60 A single-half-sine surge current. Its low VF (0.46 V typ @ 2.0 A, +25°C) and low IR (0.1 mA max @ 40 V, +25°C) directly enable high-efficiency DC/DC output stage clamping and reverse-polarity protection in 12 V automotive systems.
Thermal performance is defined by RθJC = 5 °C/W and RθJA = 60 °C/W on 1-inch² copper pad, supporting continuous 2.0 A operation up to +120°C junction temperature. Capacitance is 63 pF at 10 V reverse bias, enabling fast switching in flyback snubbers and synchronous rectifier auxiliary paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (V) | 40 V maximum blocking voltage - supports 12 V automotive systems with 3× safety margin against load dump transients |
| IF(AV) (A) | 2.0 A average forward current - rated for continuous conduction at TA ≤ +120°C with standard PCB layout |
| VF Max (V) | 0.50 V @ 2.0 A, +25°C - reduces power loss to ≤1.0 W in polarity protection circuits |
| IR Max (mA) | 0.1 mA @ 40 V, +25°C - ensures minimal standby current draw in always-on vehicle modules |
| IFSM (A) | 60 A @ 8.3 ms half-sine - withstands ISO 7637-2 pulse 5a without degradation |
| RθJA (°C/W) | 60 °C/W - enables thermal design with ≤30°C rise above ambient at 2.0 A on minimal copper area |
| CT (pF) | 63 pF @ 10 V, 1 MHz - limits high-frequency noise coupling in 200 kHz–1 MHz SMPS feedback paths |
Pinout & Package
Package: PowerDI123 - surface-mount plastic case (UL 94V-0), 0.096 g weight, matte tin–annealed copper leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to protected circuit input or switch node; requires low-inductance trace routing |
| Cathode | Forward current exit / reverse blocking terminal | Marked by cathode band; ties to system ground or low-side return path |
| Cathode Band | Polarity identification marker | Visible molded band on package top surface - unambiguous orientation for automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Suppresses edge breakdown during repetitive transients (e.g., ISO 16750-2 pulses), extending lifetime in harsh environments |
| Patented interlocking clip design | Enables 60 A IFSM without bond wire lift-off - critical for alternator field recirculation surge handling |
| Low VF (0.46 V typ @ 2.0 A) | Reduces conduction loss by >30% vs. comparable silicon rectifiers - improves efficiency in battery-fed modules |
| Halogen- and antimony-free "Green" compound | Meets JESD204B and automotive ELV directives (<900 ppm Br/Cl, <1000 ppm Sb) without compromising mold integrity |
| PowerDI123 footprint | 0.98 mm × 3.70 mm body with 1.00 mm lead width - compatible with standard 0805 reflow profiles and AOI inspection |
Applications
| Automotive Polarity Protection | DC Motor Recirculation |
|---|---|
Use Scenario: Reverse-battery connection protection in infotainment head units and body control modules. IC Role / Device Role / Timing Role: Unidirectional current gate placed between battery input and downstream LDO/regulator inputs. Use Value: 0.1 mA IR at +25°C prevents >1 µA parasitic drain; 40 V VR withstands jump-start transients. | Use Scenario: Freewheeling path for brushed DC motors in power seats and window lifts. IC Role / Device Role / Timing Role: Clamp diode across motor terminals to dissipate inductive kickback energy. Use Value: 60 A IFSM handles peak back-EMF surges; 0.50 V VF limits clamp power dissipation to <30 W. |
| 12 V Automotive Power Supply Output | USB-C PD Adapter Secondary Side |
Use Scenario: Output rectification in 12 V buck converters powering ADAS sensors and radar modules. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in low-noise, high-efficiency secondary-side regulation. Use Value: 63 pF CT minimizes EMI generation; RθJC = 5 °C/W enables direct thermal coupling to heatsink pads. | Use Scenario: Secondary-side rectification in compact 20 W USB-C PD adapters for automotive accessories. IC Role / Device Role / Timing Role: Low-VF Schottky diode replacing MOSFET synchronous rectifiers where control complexity must be minimized. Use Value: 0.46 V VF enables ≥92% efficiency at 2 A; PowerDI123 footprint fits tight 2-layer PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS24H (ON Semiconductor) | 40 V, 2 A, VF = 0.52 V max @ 2 A, RθJA = 70 °C/W | Higher thermal resistance limits continuous current to 1.7 A at +105°C ambient | Prefer SDM2L40P1-7 for designs requiring full 2.0 A at elevated ambient temperatures |
| SB240-E3/54 (Vishay) | 40 V, 2 A, VF = 0.55 V max @ 2 A, PowerDI123-compatible but no guard ring | Lacks transient-hardened die structure - unsuitable for ISO 7637-2 pulse 5a environments | SDM2L40P1-7 is required where automotive-grade transient immunity is mandatory |
Compared with SS24H and SB240-E3/54, SDM2L40P1-7 delivers lower forward voltage, superior thermal resistance, and integrated guard ring protection - making it the only choice for automotive-grade 2 A Schottky rectification where reliability under load dump and thermal stress is non-negotiable.
Availability
SDM2L40P1-7 is available at Aetrix Electronics and suitable for automotive polarity protection, DC motor recirculation, and 12 V power supply output applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SDM2L40P1-7 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-reliability components for automotive, industrial, and computing markets since 1960.
The SDM2L40P1-7 belongs to Diodes' PowerDI® Schottky rectifier product line, engineered specifically for automotive-grade transient robustness, low-loss power conversion, and green manufacturing compliance.
FAQ
Is SDM2L40P1-7 qualified to AEC-Q101?
Yes, SDM2L40P1-7 is AEC-Q101 qualified per Diodes Incorporated's official product documentation (DS39464 Rev. 2). It has passed stress tests including HTGB, HTRB, TST, and mechanical shock, confirming suitability for automotive under-hood and cabin applications.
What is the maximum operating junction temperature?
The maximum rated junction temperature is +150°C. The device achieves its 2.0 A average forward current rating at TJ = +120°C, with derating beginning linearly above +120°C per Figure 4 in the datasheet.
Does SDM2L40P1-7 have a cathode marking on the package?
Yes - the cathode is marked by a visible molded band on the top surface of the PowerDI123 package. This band aligns with the cathode terminal and is detectable by automated optical inspection systems during SMT assembly.
Can SDM2L40P1-7 replace SB240 in existing designs?
Yes, SDM2L40P1-7 is a direct footprint-compatible upgrade to SB240 with identical PowerDI123 outline and cathode-band marking. It improves VF by 0.05 V and adds guard ring protection, but requires validation of surge immunity requirements per ISO 7637-2.
SDM2L40P1-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 40 V
- Capacitance @ Vr, F:
- 63pF @ 10V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
- Operating Temperature - Junction:
- -
SDM2L40P1-7 FAQ
1.How can I place an order for SDM2L40P1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM2L40P1-7 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 SDM2L40P1-7 reliable?
The price and inventory of SDM2L40P1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM2L40P1-7 is usually 5 days.
3.What payment methods are accepted for SDM2L40P1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM2L40P1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM2L40P1-7?
SDM2L40P1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM2L40P1-7 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 SDM2L40P1-7?
For technical support, including SDM2L40P1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM2L40P1-7 requirements.
6.How does Aetrix verify that SDM2L40P1-7 is sourced from the original manufacturer or authorized distributors?
All SDM2L40P1-7 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 SDM2L40P1-7 meets industry standards.
7.What is the process for return or replacement of SDM2L40P1-7?
All SDM2L40P1-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM2L40P1-7, 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 SDM2L40P1-7 part is unused and in its original packaging.
Return procedure for SDM2L40P1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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