STMicroelectronics STTH5R06DJF-TR
- Part No.:
- STTH5R06DJF-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- 8-PowerVDFN
- Datasheet:
-
STTH5R06DJF-TR.pdf
- Description:
- DIODE GEN PURP 600V 5A POWERFLAT
- Quantity:
- Payment:

- Shipping:

Inventory:7,432
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Product details
Overview
STTH5R06DJF-TR from STMicroelectronics is a 600 V, 5 A ultrafast recovery silicon diode in PowerFLAT 5x6 package, optimized for high-frequency DC/DC converters and free-wheeling applications. It delivers low conduction loss (VF = 0.95 V typ. at 125 °C), fast reverse recovery (trr = 30 ns typ.), and high surge capability (IFSM = 190 A), enabling compact, high-efficiency telecom power supplies.
For engineers reviewing the STTH5R06DJF-TR datasheet, STTH5R06DJF-TR pinout, STTH5R06DJF-TR application, or STTH5R06DJF-TR equivalent, key selection criteria include ultrafast recovery time, low-profile thermal design (1 mm height), ECOPACK2 compliance, and junction-to-case thermal resistance of 2.0 °C/W under conduction cooling.
Technical Context
This diode employs an optimized epitaxial structure to achieve soft, low-noise reverse recovery with Sfactor ≥ 0.5 across dIF/dt up to 500 A/µs. Its ultrafast trr (30–40 ns) and low Qrr (180 nC) minimize switching losses in hard-switched topologies.
Designed for conduction-cooled layouts, the PowerFLAT 5x6 package features exposed copper die attach area and UL 94 V0 epoxy, supporting thermal performance up to Tj = 175 °C with Rth(j-c) = 2.0 °C/W - critical for space-constrained telecom and industrial SMPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input stages in 48 V telecom rectifiers and 380 V intermediate bus converters without derating. |
| IF(AV) | 5 A at TC = 160 °C - enables continuous operation in high-power density DC/DC modules with minimal heatsinking. |
| trr (typ.) | 30 ns - reduces turn-off switching loss and EMI generation in 100–500 kHz converter designs. |
| VF (typ.) | 0.95 V at IF = 5 A, Tj = 125 °C - lowers conduction loss to ~4.75 W, improving full-load efficiency by >0.8% vs. standard FRDs. |
| Rth(j-c) | 2.0 °C/W - allows direct PCB copper thermal spreading, eliminating need for mechanical heatsinks in ≤15 W output designs. |
| Qrr | 180 nC - limits reverse recovery charge-induced voltage overshoot during hard commutation in synchronous rectifier flyback circuits. |
Pinout & Package
STTH5R06DJF-TR uses the PowerFLAT 5x6 (SMD) package: 5.0 × 6.0 mm footprint, 1.0 mm max height, exposed thermal pad on bottom side for PCB conduction cooling. The device has two terminals: Anode (A) and Cathode (K), both accessible via solderable surface-mount pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to input rail or switch node; requires low-inductance layout to suppress dIF/dt-induced ringing. |
| Cathode (K) | Forward current exit / reverse blocking terminal | Connected to output or ground; large copper pour recommended to manage heat and reduce parasitic inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr = 30 ns typ. at 125 °C - enables stable operation in >300 kHz fixed-frequency DC/DC converters. |
| Soft recovery characteristic | Sfactor ≥ 0.5 - suppresses voltage spikes and EMI during reverse recovery, easing filter design. |
| High surge robustness | IFSM = 190 A (10 ms sine) - withstands inrush and fault currents in telecom hot-swap and redundant power systems. |
| Low-profile thermal packaging | 1.0 mm max height, PowerFLAT 5x6 - fits under 1.2 mm board gaps in blade servers and modular PSUs. |
Applications
| Telecom AC/DC Front-End | Isolated DC/DC Converter Secondary |
|---|---|
Use Scenario: Rectification in 48 V input telecom rectifiers feeding intermediate bus converters. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode in active clamp forward or phase-shifted full-bridge secondary side. Use Value: 30 ns trr and 0.95 V VF reduce switching and conduction losses, enabling >94% peak efficiency at 200 kHz switching frequency. | Use Scenario: Output rectification in 12 V/50 A isolated DC/DC modules for base station RF power amplifiers. IC Role / Device Role / Timing Role: High-current freewheeling diode synchronized with synchronous MOSFET gate drive timing. Use Value: 190 A IFSM rating handles transient load steps without failure; soft recovery minimizes gate driver stress. |
| Industrial SMPS Auxiliary Supply | Automotive DC/DC Converter (12 V → 5 V) |
Use Scenario: Auxiliary bias supply in 3 kW motor drive inverters, powering gate drivers and control logic. IC Role / Device Role / Timing Role: Input rectifier in flyback-derived auxiliary converter operating at 250 kHz. Use Value: 175 °C Tj(max) and 2.0 °C/W Rth(j-c) allow reliable operation without forced air, even at 70 °C ambient. | Use Scenario: Low-voltage DC/DC conversion in automotive infotainment head units requiring EMI-compliant operation. IC Role / Device Role / Timing Role: Freewheeling diode in buck converter supplying 5 V/3 A to USB-C PD controllers. Use Value: ECOPACK2 compliance ensures RoHS/REACH adherence; soft recovery meets CISPR-25 Class 5 conducted EMI limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R06DJF-TR | 8 A IF(AV), same VRRM/trr/Rth(j-c); larger die increases VF slightly (1.05 V typ. at 125 °C). | Better suited for higher-current outputs (>6 A) but requires larger PCB area and more copper for thermal management. | Select when output current exceeds 6 A and board space permits larger thermal pad. |
| IXYS MUR560E | Same 600 V/5 A rating, but TO-220AC package; trr = 35 ns, VF = 1.25 V typ., Rth(j-c) = 3.0 °C/W. | Requires mechanical heatsink and through-hole mounting; unsuitable for ultra-thin or high-density SMT layouts. | Choose only if legacy through-hole assembly is mandated or thermal interface constraints prevent SMT conduction cooling. |
Compared with STTH8R06DJF-TR and IXYS MUR560E, STTH5R06DJF-TR uniquely balances 5 A current handling, 1 mm profile, and 2.0 °C/W thermal resistance - making it optimal for space-limited, conduction-cooled telecom and industrial DC/DC modules where board thickness and EMI are critical.
Availability
STTH5R06DJF-TR is available at Aetrix Electronics and suitable for telecom power supplies, industrial SMPS, and automotive DC/DC converters requiring stable component supply, long-term lifecycle support, and ECOPACK2 environmental compliance.
Supply support for STTH5R06DJF-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 analog, power, microcontroller, and sensor solutions for industrial, automotive, and communications markets.
This diode belongs to ST's STTH ultrafast recovery diode product line, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained and thermally demanding applications.
FAQ
What is the maximum junction temperature and how does it impact thermal design?
The STTH5R06DJF-TR has a maximum junction temperature of 175 °C. This allows operation in high-ambient environments without derating, provided the PCB provides adequate copper area under the exposed thermal pad. With Rth(j-c) = 2.0 °C/W, a 25 °C rise above case temperature corresponds to 12.5 W dissipation - sufficient for most 5 A DC/DC secondaries.
Does this diode require a heatsink in typical applications?
No external heatsink is required. The PowerFLAT 5x6 package is designed for conduction cooling via PCB copper. A minimum 3 cm² of 70 µm thick copper directly under the thermal pad achieves Rth(j-a) ≈ 10 °C/W at natural convection - adequate for ≤10 W power dissipation. Forced airflow further improves margin.
How does the soft recovery characteristic affect EMI performance?
The Sfactor ≥ 0.5 ensures gradual current decay during reverse recovery, reducing di/dt-induced voltage spikes and high-frequency ringing. This directly lowers broadband conducted EMI (30 MHz–1 GHz), easing compliance with CISPR-22/32 and automotive CISPR-25 standards without additional snubbers or shielding.
Can STTH5R06DJF-TR replace standard FRD diodes in existing designs?
Yes - it is a direct SMD drop-in replacement for 5 A/600 V FRDs in PowerFLAT 5x6 footprints. Its lower VF and faster trr improve efficiency and reduce thermal stress, but layout must ensure low-inductance cathode routing to fully realize soft-recovery benefits and avoid unintended oscillation.
STTH5R06DJF-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 2 V @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 55 ns
- Current - Reverse Leakage @ Vr:
- 60 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerFlat™ (5x6)
- Operating Temperature - Junction:
- 175°C (Max)
STTH5R06DJF-TR FAQ
1.How can I place an order for STTH5R06DJF-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH5R06DJF-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 STTH5R06DJF-TR reliable?
The price and inventory of STTH5R06DJF-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH5R06DJF-TR is usually 5 days.
3.What payment methods are accepted for STTH5R06DJF-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH5R06DJF-TR transactions.
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4.How is shipping managed for STTH5R06DJF-TR?
STTH5R06DJF-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH5R06DJF-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 STTH5R06DJF-TR?
For technical support, including STTH5R06DJF-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH5R06DJF-TR requirements.
6.How does Aetrix verify that STTH5R06DJF-TR is sourced from the original manufacturer or authorized distributors?
All STTH5R06DJF-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 STTH5R06DJF-TR meets industry standards.
7.What is the process for return or replacement of STTH5R06DJF-TR?
All STTH5R06DJF-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH5R06DJF-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 STTH5R06DJF-TR part is unused and in its original packaging.
Return procedure for STTH5R06DJF-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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