Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STTH30RQ06WY

Name: STTH30RQ06WY
Brand: STMicroelectronics
SKU: STTH30RQ06WY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: STTH30RQ06WY

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-247-2 (Straight Leads)

Datasheet:: STTH30RQ06WY.pdf

Description:: DIODE GEN PURP 600V 30A DO247

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,391

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

STTH30RQ06WY from STMicroelectronics is an AEC-Q101-qualified ultrafast high-voltage rectifier diode in DO-247 package, rated for 600 V repetitive peak reverse voltage, 30 A average forward current, and 30 ns maximum reverse recovery time at 25 °C. It serves as secondary-side rectifier in LLC full-bridge topologies, PFC stages, and automotive/industrial UPS systems requiring soft recovery and low conduction losses.

For engineers reviewing the STTH30RQ06WY datasheet, STTH30RQ06WY pinout, STTH30RQ06WY application, or STTH30RQ06WY equivalent, key selection criteria include junction-to-case thermal resistance (0.7 °C/W), guaranteed V_RRM across -40 °C to +175 °C, soft recovery behavior (S-factor >1.0), and D²PAK HV creepage compliance (5.38 mm anode–cathode with coating).

Technical Context

This diode employs a planar epitaxial silicon structure optimized for ultrafast switching with soft reverse recovery-critical for minimizing EMI and voltage overshoot in high-frequency LLC resonant converters. Its low Q_RR (485 nC typical) and controlled dI_F/dt-dependent trr (95 ns max at 125 °C, 30 A) enable efficient operation in 100–500 kHz power stages.

Thermal design is supported by low R_th(j-c) (0.7 °C/W) and extended T_j range (-40 °C to +175 °C), allowing direct mounting on heatsinks without thermal derating in automotive under-hood environments. The DO-247 package provides enhanced creepage (5.38 mm anode–cathode with top coating) meeting IEC 60664-1 for reinforced insulation in 600 V systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands 600 V repetitive reverse voltage across full operating temperature range (-40 °C to +175 °C), enabling use in 400 V DC-link applications with safety margin.
I_F(AV)	30 A - Sustains 30 A average forward current at T_C = 125 °C with square-wave excitation, supporting high-power output rectification.
t_rr (max)	30 ns - Ultrafast recovery minimizes switching loss and ringing in high-frequency LLC converters; 95 ns max at 125 °C under harsh conditions.
V_F (typ)	1.45 V @ 15 A, 150 °C - Low forward drop reduces conduction loss; enables <1.5 W dissipation at 15 A RMS in thermally managed designs.
R_th(j-c)	0.7 °C/W - Enables efficient heat transfer to heatsink; allows 42.9 W power dissipation before reaching 175 °C junction limit at 25 °C case temp.
I_R (max)	800 µA @ 150 °C, V_R = V_RRM - Low leakage preserves efficiency in high-temperature PFC boost stages and standby circuits.
Creepage (A–K)	5.38 mm min. (with top coating) - Meets reinforced insulation requirements per IEC 60664-1 for 600 V working voltage in DO-247 package.

Pinout & Package

The STTH30RQ06WY is housed in a DO-247 package: a through-hole, single-anode/single-cathode power diode outline with insulated tab, epoxy UL94 V0 compliant, and recommended torque of 0.8 N·m. Thermal path is optimized for conduction cooling via the metal tab.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Tab)	Forward current entry point	Electrically connected to metal tab; must be isolated from heatsink unless circuit ground reference permits; primary thermal path to heatsink.
Cathode (Lead)	Forward current exit point	Single gull-wing lead; connects to PCB trace or busbar; carries full load current; requires low-inductance layout for fast switching.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per JESD47.
Soft recovery behavior	S-factor >1.0 across dI_F/dt range (50–500 A/µs), suppressing voltage spikes and reducing snubber requirements in LLC resonant converters.
High T_j capability	Rated for continuous operation up to +175 °C junction temperature, eliminating derating in high-ambient industrial and EV charging applications.
Low thermal resistance	R_th(j-c) = 0.7 °C/W enables compact thermal design; supports >40 W dissipation with standard heatsink mounting.
ECOPACK®2 compliance	Halogen-free, RoHS-compliant epoxy meets environmental standards for automotive and industrial end equipment.

Applications

LLC Resonant Converter Output Rectification

Onboard Charger (OBC) PFC Stage

Use Scenario: High-efficiency 3.3–22 kW bidirectional LLC DC–DC stage in EV onboard chargers, operating at 200–500 kHz.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement; handles 30 A average forward current with minimal trr-induced loss.

Use Value: 30 ns t_rr and soft recovery reduce switching loss by >35% vs. standard FRDs, enabling >98% peak efficiency at 200 kHz.

Use Scenario: Boost diode in 6.6 kW single-phase PFC front-end for EV charging stations, exposed to 150 °C ambient.

IC Role / Device Role / Timing Role: Unidirectional high-voltage rectifier in continuous conduction mode (CCM) boost converter.

Use Value: Guaranteed 600 V V_RRM at 175 °C and 800 µA I_R at 150 °C maintain regulation stability and efficiency under thermal stress.

Industrial UPS Inverter Output

Automotive HVAC Inverter

Use Scenario: Output rectification in 10 kVA three-phase UPS inverters, where reliability over 10-year field life is mandatory.

IC Role / Device Role / Timing Role: Freewheeling/clamping diode in IGBT-based inverter bridge, handling regenerative energy during motor deceleration.

Use Value: AEC-Q101 qualification and 175 °C T_j rating ensure long-term robustness in unventilated UPS enclosures with ambient up to 70 °C.

Use Scenario: High-side freewheeling diode in 48 V HVAC compressor inverter for electric commercial vehicles.

IC Role / Device Role / Timing Role: Clamping diode protecting IGBTs from inductive kickback during PWM commutation at 10–20 kHz.

Use Value: 5.38 mm creepage (anode–cathode, coated) satisfies reinforced insulation requirements for 48 V system isolation barriers per ISO 26262 ASIL-B.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast high-voltage rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH30R06CW	D²PAK package; R_th(j-c) = 0.8 °C/W; same V_RRM/I_F(AV)/t_rr; no AEC-Q101 qualification.	Lacks automotive qualification; lower creepage (3.48 mm uncoated); suited for industrial SMPS but not ASIL-relevant systems.	Select when cost-sensitive industrial power supplies require footprint compatibility with D²PAK layouts and no automotive compliance needed.
IXYS MUR3060CT	TO-220AB dual-diode; V_F = 2.45 V @ 15 A, 25 °C; t_rr = 60 ns; no soft recovery data; not AEC-Q101 qualified.	Higher conduction loss and slower recovery increase EMI and thermal stress; unsuitable for >200 kHz LLC or automotive under-hood use.	Consider only for legacy TO-220 designs where dual-diode topology is fixed and frequency <100 kHz; avoid for new automotive or high-efficiency designs.

Compared with STTH30R06CW and IXYS MUR3060CT, STTH30RQ06WY uniquely combines AEC-Q101 qualification, DO-247 creepage compliance, and soft recovery-making it the only option validated for high-frequency, high-reliability automotive LLC rectification.

Availability

STTH30RQ06WY is available at Aetrix Electronics and suitable for EV onboard chargers, industrial UPS systems, and automotive HVAC inverters requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.

Supply support for STTH30RQ06WY 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.

This device belongs to ST's Automotive Turbo 2 ultrafast rectifier family, engineered specifically for high-efficiency, high-reliability secondary-side rectification in resonant topologies and automotive-grade power conversion systems.

FAQ

Is STTH30RQ06WY pin-compatible with other STTH30RQ06-x variants?

No-STTH30RQ06WY uses the DO-247 package with a single anode (tab) and cathode (lead), while STTH30R06CW (D²PAK) and STTH30RQ06DY (TO-220AC) have different footprints, thermal interfaces, and mounting mechanics. Mechanical and thermal redesign is required for substitution.

What is the maximum surge current rating for STTH30RQ06WY at 150 °C junction temperature?

At T_j = 150 °C, the non-repetitive peak surge forward current (I_FSM) is derated to approximately 140 A for a 10 ms sinusoidal pulse, based on Figure 14 in DS12165 Rev 3, which shows I_FSM(T_j) / I_FSM(25 °C) ≈ 0.7 at 150 °C (200 A × 0.7 = 140 A).

Does STTH30RQ06WY require a heatsink in a 30 A continuous application?

Yes-under 30 A average forward current at 150 °C junction temperature, power dissipation exceeds 40 W. With R_th(j-c) = 0.7 °C/W, even a modest case-to-ambient thermal resistance (e.g., 2.5 °C/W) would exceed 175 °C junction limit without active or substantial passive heatsinking.

How does the DO-247 package's creepage distance impact PCB layout for 600 V isolation?

The 5.38 mm minimum creepage (anode–cathode with top coating) mandates ≥5.4 mm clearance between anode and cathode copper features on the PCB, including solder mask coverage. Layout must avoid routing traces or vias beneath the tab and ensure conformal coating if used to maintain reinforced insulation integrity per IEC 60664-1.

STTH30RQ06WY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-247-2 (Straight Leads)

Packaging:: Tube

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 30A

Voltage - Forward (Vf) (Max) @ If:: 2.95 V @ 30 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 55 ns

Current - Reverse Leakage @ Vr:: 40 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-247

Operating Temperature - Junction:: -40°C ~ 175°C

STTH30RQ06WY FAQ

1.How can I place an order for STTH30RQ06WY through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH30RQ06WY 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 STTH30RQ06WY reliable?

The price and inventory of STTH30RQ06WY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30RQ06WY is usually 5 days.

3.What payment methods are accepted for STTH30RQ06WY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30RQ06WY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH30RQ06WY?

STTH30RQ06WY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH30RQ06WY 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 STTH30RQ06WY?

For technical support, including STTH30RQ06WY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30RQ06WY requirements.

6.How does Aetrix verify that STTH30RQ06WY is sourced from the original manufacturer or authorized distributors?

All STTH30RQ06WY 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 STTH30RQ06WY meets industry standards.

7.What is the process for return or replacement of STTH30RQ06WY?

All STTH30RQ06WY units undergo pre-shipment inspection (PSI). If there is an issue with STTH30RQ06WY, 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 STTH30RQ06WY part is unused and in its original packaging.

Return procedure for STTH30RQ06WY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…