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

STMicroelectronics STTH30RQ06DY

Name: STTH30RQ06DY
Brand: STMicroelectronics
SKU: STTH30RQ06DY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH30RQ06DY

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: STTH30RQ06DY.pdf

Description:: DIODE GEN PURP 600V 30A TO220AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STTH30RQ06DY from STMicroelectronics is an AEC-Q101-qualified ultrafast high-voltage rectifier diode in TO-220AC 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 delivers soft recovery behavior, low thermal resistance (0.7 °C/W), and operates up to +175 °C junction temperature - deployed in LLC full-bridge secondary rectification and automotive PFC stages.

For engineers reviewing the STTH30RQ06DY datasheet, STTH30RQ06DY pinout, STTH30RQ06DY application, or STTH30RQ06DY equivalent, key selection criteria include its guaranteed V_RRM across -40 °C to +175 °C, low conduction loss (V_F = 1.45 V typ. @ 15 A, 150 °C), ultrafast trr performance under high dI_F/dt conditions, and creepage-compliant packaging for high-reliability industrial and automotive power systems.

Technical Context

This device implements a planar epitaxial silicon structure optimized for high-voltage ultrafast switching with soft reverse recovery-critical for minimizing EMI and voltage overshoot in resonant LLC converters. Its dynamic parameters (Q_RR = 485 nC, I_RM = 8–11 A) are characterized at T_j = 125 °C with 400 V reverse bias and -200 A/µs di/dt, enabling predictable loss modeling in high-frequency PFC and UPS designs.

The TO-220AC package provides direct metal tab thermal conduction, achieving R_th(j-c) = 0.7 °C/W, and supports mechanical mounting with 0.55 N·m recommended torque. It is ECOPACK®2 compliant and qualified per AEC-Q101 for automotive under-hood environments requiring stable operation from -40 °C to +175 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - guarantees blocking capability across full industrial and automotive temperature range (-40 °C to +175 °C)
I_F(AV)	30 A - average forward current rating at T_C = 125 °C, defining continuous conduction capability in rectifier stage
t_rr (max)	30 ns - ultrafast reverse recovery time at 25 °C, enabling >100 kHz switching in LLC topologies
V_F (typ)	1.45 V @ 15 A, 150 °C - low forward drop reduces conduction losses in high-current PFC and output rectification
R_th(j-c)	0.7 °C/W - low junction-to-case thermal resistance enables efficient heatsink coupling in TO-220AC mounting
I_R (max)	800 µA @ 150 °C - low leakage preserves efficiency in high-temperature automotive applications
Q_RR	485 nC - quantified reverse recovery charge used directly in snubber and EMI filter design calculations

Pinout & Package

STTH30RQ06DY uses the TO-220AC package: single-diode configuration with isolated metal tab (cathode-connected), 3-pin outline (anode, cathode, tab), UL94 V0 epoxy molding, and screw-mount thermal interface. Recommended torque: 0.55 N·m.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead)	Forward current entry	Connected to high-side switch node (e.g., LLC transformer secondary center-tap or bridge leg)
Cathode (lead)	Forward current exit / reverse blocking terminal	Connected to output bus or PFC capacitor positive rail; defines polarity of rectification path
Tab (metal surface)	Cathode connection	Electrically and thermally tied to cathode; must be insulated from heatsink unless system ground reference permits

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock testing
Soft recovery behavior	Controlled dI_R/dt and low S-factor minimize voltage ringing and EMI in high-dI/dt LLC and PFC circuits
Guaranteed V_RRM over full T_j	600 V specified from -40 °C to +175 °C - eliminates derating uncertainty in wide-temperature designs
Low R_th(j-c)	0.7 °C/W enables 30 A operation with ≤35 K rise above heatsink at 125 °C case temperature
ECOPACK®2 compliance	Halogen-free, RoHS-compliant materials meet global environmental and automotive supply chain requirements

Applications

LLC Resonant Converter Secondary Rectification

Automotive On-Board Charger (OBC) PFC Stage

Use Scenario: High-efficiency 3.3–22 kW bidirectional OBC using asymmetric LLC topology with synchronous rectification constraints.

IC Role / Device Role / Timing Role: Ultrafast high-voltage freewheeling diode in secondary-side center-tapped rectifier, handling 30 A DC output with <30 ns t_rr to suppress voltage spikes.

Use Value: Soft recovery and low Q_RR reduce snubber losses and EMI filter size; 175 °C rating supports compact thermal design without forced air.

Use Scenario: 11 kW single-phase PFC front-end in EV charging station operating at 100 kHz switching frequency.

IC Role / Device Role / Timing Role: Boost diode in continuous-conduction-mode (CCM) PFC, conducting 30 A average current with minimal conduction loss and fast turn-off.

Use Value: 1.45 V V_F @ 150 °C lowers conduction loss by ~12% vs. standard FRD; guaranteed 600 V V_RRM ensures reliability during line surges.

Industrial Uninterruptible Power Supply (UPS)

Air Conditioning Inverter DC Link Clamping

Use Scenario: Online double-conversion UPS with 400 V DC link, requiring robust output rectification and hold-up time support.

IC Role / Device Role / Timing Role: Output rectifier in high-frequency inverter stage, clamping flyback energy and sustaining 30 A load current during battery backup mode.

Use Value: Low thermal resistance (0.7 °C/W) allows passive heatsinking; AEC-Q101 qualification ensures long-term reliability in 24/7 operation.

Use Scenario: 3-phase HVAC inverter with 600 V DC link, where transient overvoltage suppression is critical during motor regenerative braking.

IC Role / Device Role / Timing Role: Clamping diode across IGBT collector-emitter, absorbing inductive kickback with soft recovery to limit dv/dt stress.

Use Value: 5.38 mm creepage (in D²PAK HV variant) not applicable here, but TO-220AC's isolation and 600 V rating provide margin against 1.2× V_DC transients.

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
STTH30R06DJ	Same die, D²PAK package; R_th(j-c) = 0.8 °C/W; no AEC-Q101 qualification	Lacks automotive qualification; suited for industrial SMPS where vibration/thermal cycling less severe	Select when footprint space is constrained and automotive qualification is unnecessary
IXYS MUR3060CT	Dual common-cathode configuration; 600 V, 30 A per diode; t_rr = 35 ns max; no AEC-Q101	Requires dual-diode layout; higher trr increases switching loss in >100 kHz designs	Choose only if dual-diode topology is required and soft recovery is secondary to cost

Compared with STTH30RQ06DY, STTH30R06DJ offers identical electrical performance in a smaller D²PAK but forfeits AEC-Q101 validation and thermal margin, while MUR3060CT trades soft recovery and automotive compliance for dual-diode integration - making STTH30RQ06DY optimal for high-reliability, high-frequency automotive and industrial rectification where single-diode simplicity and guaranteed high-Tj operation are essential.

Availability

STTH30RQ06DY is available at Aetrix Electronics and suitable for LLC resonant converter secondary rectification, automotive on-board charger PFC stages, and industrial UPS output rectification requiring stable component supply, long-lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for STTH30RQ06DY 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 product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification and PFC in electric vehicle chargers, server PSUs, and industrial inverters demanding extended temperature operation and soft-switching compatibility.

FAQ

Is STTH30RQ06DY pin-compatible with STTH30R06DJ?

No - STTH30RQ06DY uses TO-220AC (3-lead, isolated tab), while STTH30R06DJ uses D²PAK (3-lead surface-mount). Their footprints, thermal mounting methods, and mechanical interfaces differ fundamentally; PCB redesign is required for substitution.

What is the maximum allowable case temperature for continuous 30 A operation?

Per datasheet absolute ratings, I_F(AV) = 30 A is specified at T_C = 125 °C. With R_th(j-c) = 0.7 °C/W and T_j(max) = 175 °C, the maximum sustainable case temperature is 125 °C - exceeding this requires derating I_F(AV) per Figure 1 or thermal simulation.

Does STTH30RQ06DY require a heatsink in TO-220AC mounting?

Yes - at 30 A average current, junction-to-ambient thermal resistance exceeds safe limits without heatsinking. The 0.7 °C/W R_th(j-c) assumes direct conduction to a heatsink; ambient-only operation would exceed 175 °C junction temperature within seconds.

Can STTH30RQ06DY be used in synchronous rectification circuits?

No - it is a unidirectional silicon PN junction diode, not a MOSFET-based synchronous rectifier. It lacks gate control and cannot be actively turned off; it functions only as a passive, self-commutating rectifier or clamp.

STTH30RQ06DY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-2

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:: TO-220AC

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

STTH30RQ06DY FAQ

1.How can I place an order for STTH30RQ06DY through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH30RQ06DY 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 STTH30RQ06DY reliable?

The price and inventory of STTH30RQ06DY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH30RQ06DY is usually 5 days.

3.What payment methods are accepted for STTH30RQ06DY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH30RQ06DY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH30RQ06DY?

STTH30RQ06DY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH30RQ06DY 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 STTH30RQ06DY?

For technical support, including STTH30RQ06DY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH30RQ06DY requirements.

6.How does Aetrix verify that STTH30RQ06DY is sourced from the original manufacturer or authorized distributors?

All STTH30RQ06DY 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 STTH30RQ06DY meets industry standards.

7.What is the process for return or replacement of STTH30RQ06DY?

All STTH30RQ06DY units undergo pre-shipment inspection (PSI). If there is an issue with STTH30RQ06DY, 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 STTH30RQ06DY part is unused and in its original packaging.

Return procedure for STTH30RQ06DY:

1.Submit a request within 90 days.

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

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