My Inquiry
My Account
Diodes Incorporated SDM5U45EP3-7
- Part No.:
- SDM5U45EP3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0606 (1616 Metric)
- Datasheet:
-
SDM5U45EP3-7.pdf
- Description:
- DIODE SCHOT 45V X3-TSN1616-2 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:2,651
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SDM5U45EP3 from Diodes Incorporated is a 45 V, 5 A surface-mount Schottky barrier rectifier in the X3-TSN1616-2 package, optimized for low forward voltage (max 580 mV at 5 A, +25°C), ultra-low leakage (140 µA at 45 V), and minimal board footprint (2 mm²). It serves as a blocking, boost, or reverse-protection diode in space-constrained portable power supplies and DC-DC converters.
For engineers reviewing the SDM5U45EP3 datasheet, SDM5U45EP3 pinout, SDM5U45EP3 application, or SDM5U45EP3 equivalent, key selection criteria include its 180 °C/W junction-to-ambient thermal resistance, soft-switching EMI suppression, guard-ring die construction for transient robustness, and compatibility with high-density PCB layouts requiring <0.3 mm profile height.
Technical Context
This Schottky rectifier uses a planar guard-ring die structure to enhance surge immunity and reduce reverse recovery-related ringing. Its low VF–IR trade-off is achieved via optimized metal–semiconductor interface and thin epitaxial layer design, enabling stable operation from –55°C to +150°C.
The X3-TSN1616-2 package features NiAu-plated terminals, J-STD-020 Level 1 moisture sensitivity, and a cathode-dot polarity marking. Thermal performance relies on FR-4 pad layout per Diodes' recommended footprint-critical for sustaining 5 A average current without derating in ambient temperatures up to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit for 3.3 V–12 V input rails with margin. |
| IO | 5 A - Average rectified output current; supports continuous conduction mode in 10–20 W portable DC-DC stages. |
| VF (max) | 580 mV @ 5 A, +25°C - Directly reduces conduction loss to ≤2.9 W, easing thermal management in sealed enclosures. |
| IR (max) | 140 µA @ 45 V, +25°C - Enables low standby power in battery-backed systems where leakage must stay below 200 µA. |
| RθJA | 180 °C/W - Requires ≥10 mm² copper pour for 5 A operation at TA = +70°C; insufficient for >3 A without thermal relief. |
| CT | 189 pF @ 5 V, 1 MHz - Limits high-frequency switching noise coupling in 500 kHz–2 MHz buck/boost topologies. |
Pinout & Package
The SDM5U45EP3 is housed in the X3-TSN1616-2 surface-mount package: 1.6 mm × 1.6 mm body, 0.25 mm nominal thickness, cathode-marked with dot, and NiAu-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin #1) | Current entry point under forward bias | Connected to input/source side; requires thermal pad connection to ground plane for heat dissipation. |
| Cathode (marked dot) | Current exit point under forward bias | Connected to output/load side; polarity marking ensures correct orientation during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| 2 mm² footprint | Reduces PCB area by 67% vs PowerDI123-enables dual-diode placement in same space previously occupied by one. |
| 0.3 mm max profile | Enables use under mechanical shields or in ultra-thin devices (e.g., wearables, slim adapters) where height budget is ≤0.4 mm. |
| Soft switching characteristic | Minimizes dV/dt-induced EMI spikes during turn-off-reduces need for snubbers in 1–3 MHz switching converters. |
| Guard ring die construction | Improves ruggedness against ISO 7637-2 pulse 1/2/5a transients-supports automotive-grade input protection without external TVS. |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br+Cl, <1000 ppm Sb)-required for EU medical and consumer certifications. |
Applications
| USB-C Power Delivery Adapter | Wireless Charging Transmitter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 20–30 W GaN-based USB-C PD adapters. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing MOSFETs in cost-sensitive designs where gate drive complexity must be avoided. Use Value: 580 mV VF at 5 A cuts conduction loss by ~35% vs legacy 1 A Schottkys, improving full-load efficiency from 92% to 93.8%. | Use Scenario: Reverse-polarity protection at the coil driver output in Qi-compliant 15 W transmitters. IC Role / Device Role / Timing Role: Unidirectional current path isolator preventing backfeed into driver ICs during coil resonance collapse. Use Value: 140 µA IR at 45 V ensures <1 µW standby drain-critical for meeting Energy Star Level VI no-load power limits. |
| Industrial IoT Sensor Node | Portable Medical Monitor |
Use Scenario: Input-blocking diode in energy-harvesting circuits powered by solar mini-panels or thermoelectric generators. IC Role / Device Role / Timing Role: Prevents battery discharge through harvesting source when ambient energy drops below threshold. Use Value: 180 °C/W RθJA allows direct mounting on sensor PCB without heatsink-maintains <85°C junction temp at 3.5 A in 50 mm² copper area. | Use Scenario: Reverse-voltage protection on Li-ion battery charging input of handheld ECG/SpO₂ units. IC Role / Device Role / Timing Role: Fail-safe isolation between charger IC and battery during hot-plug events or adapter misconnection. Use Value: 0.3 mm profile fits beneath compact battery connectors-preserves <1.2 mm total stack height for ergonomic casing design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS5P4L-13-F | Same 45 V/5 A rating but in SMA package; VF = 550 mV @ 5 A; RθJA = 200 °C/W; larger 4.5 mm² footprint. | Less suitable for ultra-thin designs due to 1.3 mm profile; higher thermal resistance limits sustained 5 A use on standard FR-4. | Select if existing SMA footprint reuse is prioritized over size/thermal optimization. |
| SB540-TB | 40 V/5 A rating; VF = 520 mV @ 5 A; TO-277 package; RθJA = 160 °C/W; 5.5 mm² footprint; 1.1 mm profile. | Better thermal performance but incompatible with sub-0.5 mm height constraints; lower VRRM restricts use in 45 V surge-tolerant inputs. | Select only where 40 V maximum reverse voltage is acceptable and board height >1.0 mm is available. |
Compared with SS5P4L-13-F and SB540-TB, the SDM5U45EP3 delivers the smallest board area and lowest profile while maintaining competitive VF and leakage-making it optimal for next-generation portable electronics where space and thermal envelope are primary constraints.
Availability
SDM5U45EP3 is available at Aetrix Electronics and suitable for USB-C power adapters, wireless charging transmitters, industrial IoT sensor nodes, and portable medical monitors requiring stable component supply across production lifecycles.
Supply support for SDM5U45EP3 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 North America.
The SDM5U45EP3 belongs to Diodes' high-efficiency Schottky rectifier product line, engineered specifically for space- and thermally constrained portable power conversion applications demanding low VF, low IR, and ultra-thin packaging.
FAQ
What is the maximum junction temperature for continuous operation?
The SDM5U45EP3 has an operating junction temperature range of –55°C to +150°C. For continuous 5 A operation, thermal design must ensure TJ remains ≤150°C-achievable with ≥10 mm² of 2-oz copper connected to both terminals on FR-4, per Diodes' recommended pad layout.
Is the SDM5U45EP3 qualified for automotive applications?
No-SDM5U45EP3 is not AEC-Q101 qualified. While its guard-ring die improves transient robustness, Diodes explicitly states that automotive-grade versions require PPAP capability and IATF 16949 manufacturing; this part is intended for commercial/industrial portable electronics only.
How does the soft switching characteristic reduce EMI?
The soft switching behavior arises from the Schottky's majority-carrier conduction and absence of minority-carrier storage charge. This eliminates reverse recovery current spikes, reducing high-frequency spectral content above 30 MHz-lowering radiated emissions and easing EMC filter design in switch-mode power supplies.
Can SDM5U45EP3 replace a 3 A Schottky in an existing design?
Yes-its 5 A IO rating provides 67% headroom over 3 A requirements. However, verify layout thermal relief: the smaller X3-TSN1616-2 footprint demands tighter copper pour design than typical SMA/SMB packages to maintain equivalent junction temperature rise.
SDM5U45EP3-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0606 (1616 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 580 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 140 µA @ 45 V
- Capacitance @ Vr, F:
- 189pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X3-TSN1616-2
- Operating Temperature - Junction:
- -55°C ~ 150°C
SDM5U45EP3-7 FAQ
1.How can I place an order for SDM5U45EP3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SDM5U45EP3-7 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 SDM5U45EP3-7 reliable?
The price and inventory of SDM5U45EP3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SDM5U45EP3-7 is usually 5 days.
3.What payment methods are accepted for SDM5U45EP3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SDM5U45EP3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SDM5U45EP3-7?
SDM5U45EP3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SDM5U45EP3-7 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 SDM5U45EP3-7?
For technical support, including SDM5U45EP3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SDM5U45EP3-7 requirements.
6.How does Aetrix verify that SDM5U45EP3-7 is sourced from the original manufacturer or authorized distributors?
All SDM5U45EP3-7 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 SDM5U45EP3-7 meets industry standards.
7.What is the process for return or replacement of SDM5U45EP3-7?
All SDM5U45EP3-7 units undergo pre-shipment inspection (PSI). If there is an issue with SDM5U45EP3-7, 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 SDM5U45EP3-7 part is unused and in its original packaging.
Return procedure for SDM5U45EP3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SDM5U45EP3-7 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
