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

STMicroelectronics STTH802G-TR

Name: STTH802G-TR
Brand: STMicroelectronics
SKU: STTH802G-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STTH802G-TR

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: STTH802G-TR.pdf

Description:: DIODE GEN PURP 200V 8A D2PAK

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Product details

Overview

STTH802G-TR from STMicroelectronics is an ultrafast recovery silicon diode optimized for high-frequency switching applications including freewheeling, polarity protection, and base drive circuits in low-voltage inverters. It features a 200 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F(AV)), 17 ns typical reverse recovery time (t_rr), 0.95 V typical forward voltage at 8 A and 25 °C, and a maximum junction temperature of 175 °C.

For engineers reviewing the STTH802G-TR datasheet, STTH802G-TR pinout, STTH802G-TR application, or STTH802G-TR equivalent, key selection criteria include ultrafast t_rr performance under high dI/dt conditions, thermal robustness in D²PAK packages, conduction loss modeling via P = 0.73 × I_F(AV) + 0.021 × I_F(RMS)², and insulation capability in TO-220FPAC variants.

Technical Context

This device employs ST's 200 V planar platinum-doped technology to achieve low conduction losses and negligible switching losses. Its ultrafast recovery is validated at 17 ns (typ.) with 8 A forward current, −100 A/µs dI/dt, and 30 V reverse bias - enabling efficient operation in SMPS and motor control topologies.

The D²PAK package provides enhanced thermal dissipation (R_th(j-c) = 3.2 °C/W) and mechanical reliability for surface-mount power conversion designs. The insulated TO-220FPAC variant supports 2000 V_RMS isolation, while DPAK/D²PAK versions meet ECOPACK®2 environmental compliance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse blocking voltage without breakdown in freewheeling or clamp configurations
I_F(AV)	8 A at T_C = 145 °C - Continuous DC forward current rating defining heatsink sizing in TO-220AC/DPAK/D²PAK
t_rr (typ.)	17 ns at I_F = 1 A, dI/dt = −100 A/µs, V_R = 30 V - Enables >500 kHz switching in resonant converters with minimal switching loss
V_F (typ.)	0.95 V at I_F = 8 A, T_j = 25 °C - Low conduction drop reduces power loss in high-current rectification stages
T_j(max)	175 °C - Allows sustained operation in thermally constrained industrial environments without derating
R_th(j-c)	3.2 °C/W for D²PAK - Enables direct PCB copper thermal spreading without external heatsinks in <10 W applications
Q_rr (typ.)	25 nC at I_F = 8 A, V_R = 160 V, T_j = 125 °C - Quantifies stored charge affecting EMI and snubber design in hard-switched topologies

Pinout & Package

STTH802G-TR is supplied in the D²PAK (TO-263) surface-mount package, featuring a single cathode-anode configuration with the metal tab serving as the cathode terminal and electrically isolated from the die. The package includes three leads: Pin 1 (Anode), Pin 2 (Cathode), and the exposed thermal pad (Cathode).

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Forward current entry point	Connected to low-side switch node or transformer secondary in flyback/freewheeling paths
Cathode (Pin 2)	Forward current exit / reverse blocking terminal	Directly tied to output rail or ground return; requires low-inductance layout for fast recovery
Exposed thermal pad	Cathode-connected thermal interface	Must be soldered to ≥25 cm² copper area on FR4 PCB to achieve R_th(j-a) ≤ 30 °C/W per Figure 11

Key Features

Feature	Design Value
Ultrafast t_rr = 17 ns (typ.)	Minimizes reverse recovery energy loss and associated EMI in >300 kHz DC-DC converters
Low V_F = 0.95 V @ 8 A	Reduces conduction loss by ~15% vs. standard fast recovery diodes, improving efficiency in 12–48 V systems
175 °C max junction temperature	Supports operation in sealed enclosures or high-ambient environments without forced air cooling
D²PAK thermal resistance R_th(j-c) = 3.2 °C/W	Enables compact board-level thermal management using internal copper layers instead of discrete heatsinks
ECOPACK®2 compliance	Meets RoHS, halogen-free, and lead-free reflow requirements for automotive and industrial end equipment

Applications

Switch-Mode Power Supply Output Rectification

Motor Drive Freewheeling Diode

Use Scenario: Secondary-side synchronous rectification replacement in 24 V/5 A telecom PSUs operating at 350 kHz.

IC Role / Device Role / Timing Role: Ultrafast unidirectional current path during MOSFET off-time; blocks reverse voltage during switching transitions.

Use Value: 17 ns t_rr prevents cross-conduction loss with synchronous FETs and reduces output ripple by limiting reverse recovery tail current.

Use Scenario: Bidirectional freewheeling path across H-bridge IGBTs in 48 V BLDC motor controllers.

IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when IGBTs commutate; handles 100 A surge current during braking.

Use Value: 100 A non-repetitive surge rating and 0.8 V V_F at 150 °C ensure reliable energy dissipation during dynamic load reversal.

Solar Microinverter DC Link Clamp

Automotive Polarity Protection

Use Scenario: Reverse-polarity clamp across PV string inputs in 300 W microinverters exposed to partial shading transients.

IC Role / Device Role / Timing Role: Fast-acting shunt element that clamps negative transients before they damage MPPT controller ICs.

Use Value: 200 V V_RRM withstands open-circuit PV voltage spikes; 25 nC Q_rr limits clamp energy dissipation during rapid transient events.

Use Scenario: Input protection in 12 V automotive body control modules subjected to jump-start reverse battery connection.

IC Role / Device Role / Timing Role: Series-blocking diode preventing reverse current flow into sensitive CAN/LIN transceivers and MCU power rails.

Use Value: 8 A I_F(AV) supports continuous module operation; TO-220FPAC insulation (2000 V_RMS) isolates logic ground from chassis during fault conditions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast recovery diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8R06D	600 V V_RRM, 8 A I_F(AV), t_rr = 35 ns (typ.), TO-220AC package	Higher voltage rating but slower recovery; suited for 400 V DC link applications where dI/dt < 50 A/µs	Select when system bus voltage exceeds 200 V and thermal constraints allow larger through-hole mounting.
MBR20200CT	200 V V_RRM, 20 A dual common-cathode Schottky, V_F = 0.92 V @ 10 A, no reverse recovery	No t_rr or Q_rr, but limited to T_j ≤ 125 °C and higher leakage (>100 µA @ 125 °C)	Prefer for low-noise, low-EMI 12 V systems below 100 kHz; avoid in high-temperature or high-dV/dt environments.

Compared with STTH8R06D and MBR20200CT, STTH802G-TR uniquely balances 200 V blocking, 17 ns t_rr, and 175 °C operation in a surface-mount D²PAK - making it optimal for space-constrained, high-frequency industrial inverters requiring thermal resilience.

Availability

STTH802G-TR is available at Aetrix Electronics and suitable for switch-mode power supplies, motor drive freewheeling circuits, and automotive polarity protection requiring stable component supply, consistent D²PAK tape-and-reel delivery, and long-term industrial lifecycle support.

Supply support for STTH802G-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, MCU, and sensor solutions for industrial, automotive, and consumer markets.

STTH802G-TR belongs to ST's ultrafast recovery diode product line, engineered specifically for high-efficiency, high-frequency power conversion in industrial motor drives and renewable energy systems where low Q_rr and thermal ruggedness are critical.

FAQ

What is the maximum allowable case temperature for STTH802G-TR in D²PAK package?

The D²PAK version of STTH802G-TR is rated for 8 A average forward current at T_C = 145 °C, as specified in Table 2. Exceeding this temperature requires proportional current derating per the thermal curve in Figure 1. The absolute maximum junction temperature remains 175 °C regardless of package.

Does STTH802G-TR have an insulated package option?

No - STTH802G-TR is exclusively offered in the non-insulated D²PAK (TO-263) package. Insulated variants are available only in TO-220FPAC (e.g., STTH802FP), which provides 2000 V_RMS isolation between the tab and internal die.

How does the 17 ns t_rr value scale with operating conditions?

The 17 ns t_rr is measured at I_F = 1 A, dI/dt = −100 A/µs, and V_R = 30 V. At full 8 A load and higher dI/dt (e.g., −200 A/µs), t_rr increases to 22 ns (max) per Table 5, and Q_rr rises to 60 nC - both values must be used in snubber and EMI calculations.

Can STTH802G-TR replace a standard FR107 diode in a 12 V flyback converter?

Yes - with caveats. STTH802G-TR offers superior t_rr (17 ns vs. 500 ns) and lower V_F (0.95 V vs. 1.3 V), reducing switching loss and heat generation. However, its D²PAK footprint differs from FR107's DO-41, requiring PCB redesign and thermal validation due to higher power density.

STTH802G-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

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 8A

Voltage - Forward (Vf) (Max) @ If:: 1.05 V @ 8 A

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

Reverse Recovery Time (trr):: 30 ns

Current - Reverse Leakage @ Vr:: 6 µA @ 200 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

Operating Temperature - Junction:: 175°C (Max)

STTH802G-TR FAQ

1.How can I place an order for STTH802G-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for STTH802G-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 STTH802G-TR reliable?

The price and inventory of STTH802G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH802G-TR is usually 5 days.

3.What payment methods are accepted for STTH802G-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH802G-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STTH802G-TR?

STTH802G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STTH802G-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 STTH802G-TR?

For technical support, including STTH802G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH802G-TR requirements.

6.How does Aetrix verify that STTH802G-TR is sourced from the original manufacturer or authorized distributors?

All STTH802G-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 STTH802G-TR meets industry standards.

7.What is the process for return or replacement of STTH802G-TR?

All STTH802G-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH802G-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 STTH802G-TR part is unused and in its original packaging.

Return procedure for STTH802G-TR:

1.Submit a request within 90 days.

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

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