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STMicroelectronics STTH30R03CG-TR
- Part No.:
- STTH30R03CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STTH30R03CG-TR.pdf
- Description:
- DIODE ARRAY GP 300V 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:7,507
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Product details
Overview
STTH30R03CG-TR from STMicroelectronics is a hyperfast recovery silicon rectifier diode in D2PAK package, rated for 300 V repetitive peak reverse voltage, 30 A RMS forward current, and 35 ns maximum reverse recovery time (trr) at Tj = 125°C with dIF/dt = −50 A/µs. It serves as a secondary-side high-frequency rectifier in off-line SMPS and DC/DC converters, enabling reduced snubber size and lower conduction losses.
For engineers reviewing the STTH30R03CG-TR datasheet, STTH30R03CG-TR pinout, STTH30R03CG-TR application, or STTH30R03CG-TR equivalent, key selection criteria include trr ≤ 35 ns at high dIF/dt, VF ≤ 1.4 V at IF = 15 A and Tj = 125°C, softness factor (S) ≈ 0.4, Rth(j-c) = 1.2 °C/W (total), and D2PAK thermal performance under pulsed conduction.
Technical Context
This diode employs ST's TURBOSWITCH "R" technology to minimize reverse recovery charge (Qrr) and peak reverse recovery current (IRM), directly reducing switching losses in synchronous and quasi-resonant topologies. Its low trr and controlled softness suppress voltage overshoot and EMI during hard commutation.
The device features dual-anode construction (A1/A2) with common cathode (K), optimized for parallel operation and thermal symmetry in high-current outputs. Junction-to-case thermal resistance is specified as 1.2 °C/W total (two diodes in parallel), supporting high-power density designs without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Withstands up to 300 V reverse bias without breakdown, suitable for 230 VAC-derived 400 V bus applications. |
| IF(RMS) | 30 A - Supports continuous RMS current handling per device, enabling use in 300–500 W power stages. |
| trr (max) | 35 ns - Enables operation at >200 kHz switching frequencies with minimal recovery loss in flyback and LLC converters. |
| VF (max) | 1.4 V @ IF = 15 A, Tj = 125°C - Limits conduction loss to <21 W per diode at rated average current, easing thermal design. |
| Rth(j-c) | 1.2 °C/W (total) - Allows ~25 W dissipation with ≤30°C case-to-ambient rise, compatible with standard heatsink footprints. |
| S factor | 0.4 (typ.) - Indicates moderate softness, balancing low EMI against risk of voltage ringing in high-dIF/dt circuits. |
| IRM (max) | 6 A @ VR = 200 V, Tj = 125°C - Defines peak reverse current stress during turn-off, critical for snubber sizing and MOSFET voltage rating margin. |
Pinout & Package
D2PAK (TO-263) surface-mount package with isolated tab (cathode-connected metal pad), 3-terminal configuration: Anode 1 (A1), Anode 2 (A2), Cathode (K). Thermal pad on underside enables direct PCB copper pour attachment for enhanced heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | First high-current anode terminal; electrically independent but thermally coupled to A2 and K via shared die substrate. |
| A2 | Anode 2 | Second high-current anode terminal; enables dual-path current sharing and balanced thermal distribution across the die. |
| K | Cathode | Common cathode connection; bonded to exposed metal tab for low-inductance, low-thermal-resistance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Hyperfast recovery | trr ≤ 35 ns ensures minimal switching loss and EMI generation in >100 kHz SMPS designs. |
| Low forward voltage | VF ≤ 1.4 V at 15 A / 125°C reduces conduction loss by ~15% vs. standard fast recovery diodes. |
| Dual-anode structure | Enables symmetrical current splitting and thermal load distribution, improving reliability in high-current outputs. |
| Soft recovery profile | S factor ≈ 0.4 limits di/dt-induced voltage spikes, relaxing snubber requirements in hard-switched converters. |
| High junction temperature rating | Tj(max) = +175°C supports operation in compact, sealed enclosures without derating at ambient up to 105°C. |
Applications
| Server Power Supplies | Industrial DC/DC Converters |
|---|---|
Use Scenario: Secondary-side rectification in 48 V output, 500 W half-bridge LLC resonant converters. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement, operating at 250–350 kHz with zero-voltage switching. Use Value: Reduces recovery-related losses by >40% vs. standard FRDs, lowering heatsink mass by 35% while maintaining <50°C case rise. | Use Scenario: Output rectification in 24 V/30 A industrial DIN-rail power supplies with wide input range (85–264 VAC). IC Role / Device Role / Timing Role: Primary high-current freewheeling diode in asymmetric half-bridge forward converters. Use Value: Enables full-load operation at 70°C ambient without fan cooling due to Rth(j-c) = 1.2 °C/W and low Qrr. |
| Telecom Rectifier Modules | EV On-Board Charger (OBC) Auxiliary Supplies |
Use Scenario: +12 V standby rail rectification in -48 V telecom systems with strict efficiency and EMI targets. IC Role / Device Role / Timing Role: Low-noise, soft-recovery rectifier in active-clamp forward topology running at 300 kHz. Use Value: S factor of 0.4 suppresses 30–100 MHz radiated emissions, eliminating need for ferrite beads on output lines. | Use Scenario: Auxiliary 12 V supply rectification in bidirectional OBCs where reverse conduction must be minimized during regen. IC Role / Device Role / Timing Role: Fast-recovery clamp diode in auxiliary flyback converter with burst-mode control. Use Value: trr ≤ 35 ns prevents cross-conduction during light-load burst cycles, improving no-load efficiency by 0.8%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-frequency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH30L03CG-TR | Lower VF (1.25 V max @ 15 A/125°C) but slower trr (50 ns max); same D2PAK package and pinout. | Better conduction loss, worse switching loss - suited for <150 kHz fixed-frequency converters. | Select when thermal budget dominates over EMI constraints and switching frequency is ≤120 kHz. |
| IXYS MBR30H30CTG | 30 A Schottky diode, VF ≈ 0.95 V, but VRRM = 30 V only; TO-220AB package, single-anode. | Unsuitable for 300 V bus; limited to low-voltage DC/DC outputs (<48 V). | Only viable for sub-40 V secondary rails where ultra-low VF outweighs voltage limitation. |
Compared with STTH30L03CG-TR, the STTH30R03CG-TR trades 0.15 V higher VF for 15 ns faster trr and 0.1 lower S factor - critical for EMI-sensitive 200+ kHz designs. Versus MBR30H30CTG, it provides 10× higher voltage rating but lacks Schottky's zero-Qrr advantage.
Availability
STTH30R03CG-TR is available at Aetrix Electronics and suitable for server power supplies, industrial DC/DC converters, telecom rectifier modules, and EV on-board charger auxiliary supplies requiring stable component supply and long-term production continuity.
Supply support for STTH30R03CG-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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The TURBOSWITCH "R" family targets high-efficiency, high-frequency power conversion - specifically engineered to replace standard fast recovery diodes in SMPS where dIF/dt exceeds 100 A/µs and EMI reduction is critical.
FAQ
What is the maximum allowable case temperature for continuous operation?
The device has a maximum junction temperature of +175°C and a total junction-to-case thermal resistance of 1.2 °C/W. Assuming worst-case Rth(c-a) of 15 °C/W with 2 oz copper, the case temperature must remain ≤115°C to maintain Tj ≤175°C at 30 A RMS. Derating curves in Figure 1 confirm 25 A average current is sustainable at 100°C case.
Is STTH30R03CG-TR suitable for synchronous rectification circuits?
No - it is a unidirectional hyperfast recovery diode, not a MOSFET-based synchronous rectifier. It functions as a passive rectifier in flyback, forward, or LLC topologies. For synchronous rectification, discrete N-channel MOSFETs or dedicated SR controllers (e.g., STSR3) are required.
How does the dual-anode configuration affect PCB layout?
The A1 and A2 pins are electrically independent but share the same die substrate and thermal pad. Layout requires symmetrical copper pours and equal-length traces to both anodes to ensure balanced current sharing. The cathode (K) must connect directly to the largest possible thermal plane beneath the D2PAK tab.
Does the "-TR" suffix indicate tape-and-reel packaging only, or does it affect electrical specs?
The "-TR" suffix denotes tape-and-reel packaging (1000 units per reel) and does not alter electrical or thermal specifications. Electrical parameters, pinout, and package dimensions are identical to the tube-packaged STTH30R03CG. Only mechanical handling and assembly logistics differ.
STTH30R03CG-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 20 µA @ 300 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STTH30R03CG-TR FAQ
1.How can I place an order for STTH30R03CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH30R03CG-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 STTH30R03CG-TR reliable?
The price and inventory of STTH30R03CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30R03CG-TR is usually 5 days.
3.What payment methods are accepted for STTH30R03CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30R03CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH30R03CG-TR?
STTH30R03CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH30R03CG-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 STTH30R03CG-TR?
For technical support, including STTH30R03CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30R03CG-TR requirements.
6.How does Aetrix verify that STTH30R03CG-TR is sourced from the original manufacturer or authorized distributors?
All STTH30R03CG-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 STTH30R03CG-TR meets industry standards.
7.What is the process for return or replacement of STTH30R03CG-TR?
All STTH30R03CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH30R03CG-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 STTH30R03CG-TR part is unused and in its original packaging.
Return procedure for STTH30R03CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH30R03CG-TR Tags
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