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STMicroelectronics STPS8L30DEE-TR
- Part No.:
- STPS8L30DEE-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- 8-PowerTDFN
- Datasheet:
-
STPS8L30DEE-TR.pdf
- Description:
- DIODE SCHOTTKY 30V 8A POWERFLAT
- Quantity:
- Payment:
- Shipping:
Inventory:3,683
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Product details
Overview
STPS8L30DEE-TR from STMicroelectronics is a 30 V, 8 A average forward current Schottky rectifier in PowerFLAT 3.3×3.3 mm package, optimized for high-frequency DC/DC converters and freewheeling applications. It delivers typ. 0.34 V forward voltage at 8 A and 125 °C, supports 150 °C max junction temperature, and features 4 °C/W junction-to-case thermal resistance for efficient thermal management in space-constrained power stages.
For engineers reviewing the STPS8L30DEE-TR datasheet, STPS8L30DEE-TR pinout, STPS8L30DEE-TR application, or STPS8L30DEE-TR equivalent, key selection criteria include low VF conduction loss, avalanche-rated surge capability (100 A), low-profile surface-mount packaging, and ECOPACK2 compliance for industrial and battery-powered systems.
Technical Context
This Schottky rectifier operates as a unidirectional, low-loss freewheeling or polarity protection device in synchronous and non-synchronous buck, boost, and flyback topologies. Its negligible reverse recovery charge and fast switching enable high-efficiency operation above 100 kHz without snubber networks.
The device uses a planar silicon Schottky barrier structure with metal–semiconductor junction optimized for low VF and controlled leakage. Thermal performance is defined by Rth(j-c) = 4 °C/W into the exposed cathode pad, requiring direct PCB copper thermal coupling per recommended footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; sets upper limit for DC bus or output rail voltage in polarity protection and freewheeling roles. |
| IF(AV) | 8 A - Average forward current at Tc = 130 °C; defines continuous conduction capability in thermally managed PCB layouts. |
| VF (typ.) | 0.34 V @ 8 A, 125 °C - Typical forward drop; directly determines conduction loss (P ≈ 0.27×IF + 0.015×IF²) in high-current power paths. |
| Rth(j-c) | 4 °C/W - Junction-to-case thermal resistance; requires direct thermal pad connection to ≥2 cm² copper area for safe 150 °C operation. |
| IFS M | 100 A @ 10 ms - Non-repetitive surge rating; enables robustness against inrush and short-circuit transients in battery charger and SSD power rails. |
| Tj (max.) | 150 °C - Maximum operating junction temperature; allows sustained operation in sealed enclosures or high-ambient telecom power supplies. |
| IR (max.) | 140 mA @ 125 °C, VR = 30 V - Max reverse leakage; impacts standby power loss in always-on battery protection circuits. |
Pinout & Package
STPS8L30DEE-TR is housed in PowerFLAT 3.3×3.3 mm package with exposed cathode thermal pad (pin 1) and anode terminal (pin 2). The low-profile (1.1 mm max height) design enables ultra-thin power modules and portable equipment integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 2) | Forward current entry point | Connected to input/high-side node in freewheeling path or positive supply in polarity protection. |
| Cathode (Pin 1 / Exposed Pad) | Forward current exit & thermal interface | Must be soldered to large copper pour for heat dissipation; serves as common return and ground reference in DC/DC output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Very low conduction losses | 0.34 V VF at 8 A/125 °C reduces power loss by >40% vs. standard silicon diodes in 5–12 V DC/DC outputs. |
| Extremely fast switching | Negligible reverse recovery time eliminates switching loss and EMI in >200 kHz SMPS designs without snubbers. |
| Low thermal resistance | 4 °C/W Rth(j-c) enables 8 A continuous operation with ≤30 °C temperature rise on 4 cm² 2-oz copper. |
| Avalanche capacity specified | 200 W peak avalanche power (10 µs) provides validated energy-handling margin during inductive turn-off events. |
| ECOPACK2 compliant | Meets RoHS, halogen-free, and REACH requirements for consumer, industrial, and telecom end-equipment certifications. |
Applications
| Battery Charger Output Stage | SSD Power Rail Protection |
|---|---|
Use Scenario: Isolates main 12 V supply from backup battery during charging cycles while minimizing voltage drop and heat generation. IC Role / Device Role / Timing Role: Polarity protection diode in OR-ing configuration, conducting only when main supply exceeds battery voltage. Use Value: 0.34 V VF ensures <0.5 W conduction loss at 8 A, preserving battery runtime and enabling compact thermal design. | Use Scenario: Prevents reverse current flow from NVMe SSD's 3.3 V rail into failed or disconnected power sources. IC Role / Device Role / Timing Role: Unidirectional freewheeling diode placed between power source and SSD VCC, blocking backfeed during hot-swap or fault conditions. Use Value: 150 °C Tj rating and 100 A IFSM withstand transient surges during PCIe slot insertion/removal without derating. |
| Telecom DC/DC Converter Freewheeling | Cordless Appliance Motor Drive Clamp |
Use Scenario: Provides low-loss freewheeling path in isolated 48 V to 12 V flyback converter powering base station control logic. IC Role / Device Role / Timing Role: Secondary-side rectifier conducting during MOSFET off-time; critical for efficiency at 200–500 kHz switching frequencies. Use Value: Fast switching and low VF reduce total power loss by 1.2 W vs. standard Schottky alternatives, improving system thermal budget. | Use Scenario: Clamps inductive kickback from brushed DC motor in cordless drill during PWM commutation. IC Role / Device Role / Timing Role: Flyback diode across motor winding, conducting reverse EMF energy into supply rail during MOSFET turn-off. Use Value: 4 °C/W Rth(j-c) and 150 °C Tj allow sustained 8 A clamping pulses without thermal shutdown in handheld tool enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40300MUT1G | Same 30 V VRRM, 8 A IF(AV), but VF = 0.45 V @ 8 A/125 °C; Rth(j-c) = 5.5 °C/W. | Higher conduction loss and thermal resistance limit use in high-density 12 V/8 A outputs where board space restricts copper area. | Select when cost sensitivity outweighs 0.11 V VF advantage and thermal constraints permit larger heatsinking. |
| Vishay VS-8TQ030H-M3/45 | 30 V, 8 A, VF = 0.39 V @ 8 A/125 °C; TO-220AC package (Rth(j-c) = 3.5 °C/W) but 4.7 mm height vs. PowerFLAT's 1.1 mm. | Superior thermal resistance but incompatible with ultra-low-profile designs; requires through-hole mounting and vertical clearance. | Select for higher-power 12 V/8 A systems where board height is unconstrained and thermal margin is prioritized over footprint. |
Compared with NSS40300MUT1G and VS-8TQ030H-M3/45, STPS8L30DEE-TR uniquely balances ultra-low VF, industry-leading thermal resistance in a 3.3×3.3 mm footprint, and full avalanche rating-making it optimal for space- and efficiency-critical 12 V power rails in portable and telecom infrastructure.
Availability
STPS8L30DEE-TR is available at Aetrix Electronics and suitable for battery chargers, SSD power protection, and telecom DC/DC converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for STPS8L30DEE-TR 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
STPS8L30DEE-TR belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained applications such as portable electronics and telecom infrastructure.
FAQ
What is the maximum allowable PCB copper area for thermal management of STPS8L30DEE-TR?
The datasheet specifies that Rth(j-a) drops to ~25 °C/W with 10 cm² of 2-oz copper on FR4. For continuous 8 A operation, ST recommends ≥4 cm² under the exposed cathode pad-verified via Figure 8 curve showing Rth(j-a) ≤ 40 °C/W at 4 cm². Smaller areas require derating per Figure 2.
Does STPS8L30DEE-TR support bidirectional current flow?
No. STPS8L30DEE-TR is a unidirectional Schottky rectifier. It conducts only from anode to cathode; reverse bias blocks current up to 30 V. Bidirectional operation would require external circuitry such as back-to-back FETs or a dedicated ideal diode controller.
Can STPS8L30DEE-TR replace a standard PN-junction diode in an existing 12 V buck converter?
Yes-provided layout accommodates the PowerFLAT 3.3×3.3 mm footprint and thermal pad. Its lower VF reduces conduction loss by ~0.25 V versus typical 1N5822 equivalents, improving efficiency by 2–3% at 8 A. No gate drive or control changes are needed.
Is avalanche energy rating tested per JEDEC JESD22-A114?
Yes. The 200 W peak avalanche power at 10 µs (Table 1) is measured per JEDEC-standard unclamped inductive switching test. ST documents this in AN5088 and DS9066 Section 1.2, confirming single-pulse ruggedness for inductive load clamp applications.
STPS8L30DEE-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-PowerTDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerFlat™ (3.3x3.3)
- Operating Temperature - Junction:
- 150°C (Max)
STPS8L30DEE-TR FAQ
1.How can I place an order for STPS8L30DEE-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS8L30DEE-TR 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 STPS8L30DEE-TR reliable?
The price and inventory of STPS8L30DEE-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS8L30DEE-TR is usually 5 days.
3.What payment methods are accepted for STPS8L30DEE-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS8L30DEE-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS8L30DEE-TR?
STPS8L30DEE-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS8L30DEE-TR 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 STPS8L30DEE-TR?
For technical support, including STPS8L30DEE-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS8L30DEE-TR requirements.
6.How does Aetrix verify that STPS8L30DEE-TR is sourced from the original manufacturer or authorized distributors?
All STPS8L30DEE-TR 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 STPS8L30DEE-TR meets industry standards.
7.What is the process for return or replacement of STPS8L30DEE-TR?
All STPS8L30DEE-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS8L30DEE-TR, 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 STPS8L30DEE-TR part is unused and in its original packaging.
Return procedure for STPS8L30DEE-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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