My Inquiry
My Account
STMicroelectronics STTH1502FP
- Part No.:
- STTH1502FP
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
STTH1502FP.pdf
- Description:
- DIODE GP 200V 15A TO220FPAC
- Quantity:
- Payment:
- Shipping:
Inventory:733
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STTH1502FP from STMicroelectronics is an ultrafast recovery silicon diode in TO-220FPAC insulated package, rated for 15 A average forward current, 200 V repetitive peak reverse voltage, 20 ns typical reverse recovery time (at IF = 1 A, dIF/dt = −100 A/µs), and 175 °C maximum junction temperature. It serves as a freewheeling or polarity protection diode in low-voltage, high-frequency inverters and switching-mode transistor base drive circuits.
For engineers reviewing the STTH1502FP datasheet, STTH1502FP pinout, STTH1502FP application, or STTH1502FP equivalent, key selection criteria include its low conduction loss (VF typ. 0.85 V at Tj = 150 °C, IF = 15 A), negligible switching losses, 2.2 g mass, 5 °C/W junction-to-case thermal resistance, and 2000 VDC electrical insulation rating - critical for isolated power stage design and safety-compliant layout.
Technical Context
This diode employs ST's planar platinum-doped technology to achieve stable ultrafast recovery with minimal tail current, enabling efficient operation in hard-switched SMPS and motor drive snubber networks. Its dynamic performance is characterized by trr = 20–25 ns (typ./max. at 125 °C) and IRM = 5.7–7.2 A under high di/dt (−200 A/µs) and high VR (160 V).
The TO-220FPAC package provides electrical isolation between the die and mounting surface (2000 VDC), making it suitable for floating-ground topologies where primary-secondary creepage/clearance must be maintained without additional insulating hardware. Thermal design relies on conduction cooling via the case, with Rth(j-c) = 5.0 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports DC bus voltages up to 170 V nominal in 200 V-class inverters and converters. |
| IF(AV) | 15 A at Tc = 85 °C - defines continuous conduction capability when mounted on heatsink with 85 °C case temperature. |
| trr (typ) | 20 ns - enables operation at switching frequencies >100 kHz with minimal reverse recovery energy loss. |
| VF (typ) | 0.85 V at Tj = 150 °C, IF = 15 A - reduces forward conduction loss to ~12.8 W in high-current paths. |
| Rth(j-c) | 5.0 °C/W - requires ≥10 W heatsink derating margin to maintain Tj ≤ 175 °C at full load. |
| IR (max) | 100 µA at Tj = 125 °C, VR = 200 V - ensures low leakage in high-impedance bias or sensing nodes. |
| IRM | 7.2 A - peak reverse recovery current limits snubber sizing and EMI filter requirements. |
Pinout & Package
STTH1502FP uses the TO-220FPAC package: insulated plastic housing with electrically isolated tab (2000 VDC), 3-pin configuration, and screw-mount mechanical interface. The case is thermally conductive but electrically isolated from the cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to low-side switch drain/source or transformer secondary winding; carries full load current during conduction. |
| Cathode | Forward current exit node | Typically tied to positive rail or output capacitor; forms return path for freewheeling current in buck/forward topologies. |
| Case (isolated tab) | Thermal interface / mechanical ground | Mounts directly to heatsink without insulator; electrically floats at system potential - no galvanic connection to either terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr = 20 ns typ. minimizes switching loss and EMI generation in high-frequency SMPS. |
| Low VF at high Tj | 0.85 V at 150 °C enables stable efficiency over industrial temperature range without thermal runaway risk. |
| Electrically insulated case | 2000 VDC isolation eliminates need for mica washers or silicone pads in isolated DC-DC designs. |
| High Tj rating | 175 °C max junction temperature supports operation in sealed enclosures or high-ambient environments. |
| ECOPACK® compliant | Lead-free second-level interconnect meets RoHS and JEDEC JESD97 marking standards. |
Applications
| Motor Drive Freewheeling | DC-DC Converter Output Rectification |
|---|---|
|
Use Scenario: Used across IGBT or MOSFET switches in three-phase inverter legs to recirculate inductive motor current during dead-time intervals. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode providing low-loss current path during switch off-state; timing-critical for minimizing shoot-through risk. Use Value: 20 ns trr ensures rapid turn-off before complementary switch turns on, reducing cross-conduction losses and improving inverter efficiency by ≥1.2% at 20 kHz. |
Use Scenario: Placed at secondary side of isolated flyback or forward converter to rectify high-frequency AC into regulated DC output. IC Role / Device Role / Timing Role: Synchronous rectification alternative in cost-sensitive designs; operates as uncontrolled rectifier with minimal reverse recovery delay. Use Value: 0.85 V VF at 15 A lowers conduction loss by 0.25 W vs. standard fast diodes, improving 12 V/10 A output efficiency by 0.8%. |
| Solar Microinverter Polarity Protection | Industrial UPS Battery Charging Circuit |
|
Use Scenario: Installed in series with PV panel input to prevent reverse current flow during shading or nighttime conditions. IC Role / Device Role / Timing Role: Reverse-blocking protection diode; must withstand 200 V DC and sustain 15 A continuous forward current without thermal failure. Use Value: 175 °C Tj rating allows direct PCB mounting near heat-generating MPPT controllers without derating, simplifying thermal management. |
Use Scenario: Positioned between AC-DC charger output and battery bank to block backfeed during mains failure. IC Role / Device Role / Timing Role: Polarity protection and isolation diode; handles surge currents up to 150 A (10 ms) during cold-start battery connection. Use Value: 150 A IFSM rating supports safe hot-plug of lead-acid batteries without fuse coordination issues or contact arcing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1502D | TO-220AC (non-isolated tab); Rth(j-c) = 2.5 °C/W; same electrical specs. | Requires insulating washer for floating-ground use; better thermal performance in grounded heatsink layouts. | Select when mechanical grounding of cathode is acceptable and heatsink thermal resistance is <1.5 °C/W. |
| IXYS MUR1520CT | TO-220AB dual common-cathode; trr = 35 ns (max); VF = 0.92 V @ 15 A; 200 V rating. | Not pin-compatible; higher trr increases switching loss in >50 kHz designs; dual-diode form factor enables half-wave bridge. | Choose only if dual-diode topology is required and 15 ns slower recovery is acceptable in system EMI budget. |
Compared with STTH1502D, STTH1502FP trades 2.5 °C/W thermal resistance for 2000 VDC isolation - ideal for secondary-side rectification where ground separation is mandatory. Versus MUR1520CT, it offers faster recovery and lower VF but lacks dual-diode integration, requiring discrete placement in single-diode roles.
Availability
STTH1502FP is available at Aetrix Electronics and suitable for solar microinverters, industrial UPS systems, motor drive inverters, and high-frequency DC-DC converters requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for STTH1502FP 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.
The STTH ultrafast diode product line targets high-efficiency power conversion systems requiring low-loss, high-speed switching in compact insulated packages - specifically optimized for SMPS, motor drives, and renewable energy interfaces.
FAQ
What is the maximum recommended mounting torque for the STTH1502FP TO-220FPAC package?
The manufacturer specifies a recommended torque value of 0.8 Nm and a maximum torque of 1.0 Nm for the mounting screw. Exceeding 1.0 Nm risks cracking the epoxy body or deforming the isolated tab, compromising both thermal performance and 2000 VDC insulation integrity. Use a calibrated torque screwdriver for repeatable assembly.
Can STTH1502FP replace STTH1502D in an existing design without modification?
No - although electrically identical, STTH1502FP has an insulated tab while STTH1502D does not. Direct substitution requires verifying that the heatsink is electrically floating or adding insulation; otherwise, short-circuiting the cathode to ground will occur. Thermal derating is also necessary due to higher Rth(j-c) (5.0 vs. 2.5 °C/W).
How does junction temperature affect reverse recovery time in STTH1502FP?
trr decreases with rising junction temperature: at 25 °C it is 28–36 ns, dropping to 20–25 ns at 125 °C (per Table 4). This inverse relationship results from increased carrier recombination velocity at higher Tj, improving high-frequency performance but requiring careful thermal design to avoid exceeding 175 °C absolute maximum.
Is STTH1502FP suitable for synchronous rectification in LLC resonant converters?
No - STTH1502FP is a unidirectional, non-controlled diode with fixed forward/reverse characteristics. Synchronous rectification requires actively gated MOSFETs with precise timing control. While it can serve as a fallback clamp or auxiliary rectifier, it cannot replace SR FETs in primary-side synchronous rectification schemes.
STTH1502FP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 36 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220FPAC
- Operating Temperature - Junction:
- 175°C (Max)
STTH1502FP FAQ
1.How can I place an order for STTH1502FP through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1502FP 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 STTH1502FP reliable?
The price and inventory of STTH1502FP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1502FP is usually 5 days.
3.What payment methods are accepted for STTH1502FP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1502FP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1502FP?
STTH1502FP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1502FP 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 STTH1502FP?
For technical support, including STTH1502FP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1502FP requirements.
6.How does Aetrix verify that STTH1502FP is sourced from the original manufacturer or authorized distributors?
All STTH1502FP 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 STTH1502FP meets industry standards.
7.What is the process for return or replacement of STTH1502FP?
All STTH1502FP units undergo pre-shipment inspection (PSI). If there is an issue with STTH1502FP, 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 STTH1502FP part is unused and in its original packaging.
Return procedure for STTH1502FP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH1502FP Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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.
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.
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…
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…
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…
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 …
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…
