My Inquiry
My Account
STMicroelectronics STTH1512GY-TR
- Part No.:
- STTH1512GY-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STTH1512GY-TR.pdf
- Description:
- DIODE GEN PURP 1.2KV 15A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,212
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STTH1512GY-TR from STMicroelectronics is an AEC-Q101-qualified automotive ultrafast recovery silicon rectifier diode in D²PAK package, rated for 15 A average forward current, 1200 V repetitive peak reverse voltage, and 53 ns typical reverse recovery time at 125 °C. It delivers low conduction loss (VF = 1.20 V typ. @ 15 A, 150 °C) and soft recovery (S-factor = 1.5 typ.), making it suitable for high-frequency on-board battery charger (OBC) surge bypass and DC-link protection circuits.
For engineers reviewing the STTH1512GY-TR datasheet, STTH1512GY-TR pinout, STTH1512GY-TR application, or STTH1512GY-TR equivalent, key selection criteria include verified ultrafast trr performance under high dIF/dt stress, junction temperature capability up to +175 °C, thermal resistance (Rth(j-c) = 1.3 °C/W), and ECOPACK® compliance for automotive-grade supply chain traceability.
Technical Context
This diode employs a planar passivated silicon structure optimized for ultrafast soft recovery, minimizing electromagnetic interference during switching transitions in high-voltage DC systems. Its dynamic behavior is characterized by low IRM (20–28 A) and controlled Qrr under 600 V reverse bias at 125 °C, enabling stable operation in hard-switched PFC and OBC boost stages.
The device's thermal design supports continuous operation at Tj = 175 °C with Rth(j-c) = 1.3 °C/W, and its low leakage current (<10 µA @ 150 °C, VR = VRRM) enhances thermal runaway margin in parallel-connected configurations used in automotive traction and charging subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 15 A - Sustained DC output current capability at TC = 130 °C, defining continuous power handling in OBC DC-link clamping |
| VRRM | 1200 V - Maximum repetitive reverse blocking voltage, supporting 800 V nominal DC bus with 50 % safety margin |
| trr (typ.) | 53 ns - Measured at IF = 15 A, VR = 600 V, dIF/dt = −200 A/µs, enabling <500 kHz switching in resonant converters |
| VF (typ.) | 1.20 V @ 15 A, 150 °C - Low forward drop reduces conduction loss to ~18 W at full load, critical for thermal management |
| Tj range | −40 °C to +175 °C - Full automotive ambient and junction temperature rating, validated per AEC-Q101 stress test conditions |
| Rth(j-c) | 1.3 °C/W - Confirmed thermal resistance from junction to case, enabling accurate heatsink sizing for forced-air or conduction-cooled modules |
| S-factor | 1.5 (typ.) - Softness factor quantifying benign reverse recovery waveform, reducing EMI and snubber stress in high-dI/dt applications |
Pinout & Package
STTH1512GY-TR uses the D²PAK (TO-263) surface-mount package with three terminals: anode, cathode, and exposed thermal pad (connected to cathode internally). The package features UL94 V0 epoxy molding and is optimized for PCB conduction cooling via the large copper area under the thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to input-side of rectifier stage; must be routed with low-inductance trace to minimize voltage overshoot during turn-off |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Internally tied to exposed thermal pad; serves as main heat path and common reference for snubber networks |
| Thermal Pad (Bottom) | Thermal interface and electrical cathode extension | Requires ≥16.9 mm × 12.2 mm copper pour with ≥6 thermal vias to internal ground plane for Rth(j-a) ≤ 25 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, HTRB, and ESD testing per Rev G requirements |
| Ultrafast soft recovery | trr = 53 ns with S-factor = 1.5 ensures minimal reverse recovery ringing and reduced gate driver stress in SiC/GaN half-bridges |
| High junction temperature rating | 175 °C max operating junction temperature enables compact packaging in space-constrained OBC modules without derating |
| Low leakage current | <10 µA @ 150 °C, VRRM provides >2× margin against thermal runaway in parallel diode strings |
| ECOPACK® compliance | Lead-free, halogen-free construction meeting RoHS and ELV directives, with full material declaration and supply chain traceability |
Applications
| On-Board Battery Charger (OBC) | DC-Link Surge Bypass |
|---|---|
Use Scenario: Bidirectional AC/DC conversion in 11 kW EV on-board chargers using dual active bridge topology. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode in secondary-side synchronous rectification stage, recovering energy during zero-voltage switching transitions. Use Value: 53 ns trr and soft recovery reduce EMI filter size by 30 % and eliminate need for external snubbers in 200–300 kHz operation. |
Use Scenario: Transient overvoltage clamping across high-voltage DC bus capacitors during regenerative braking events. IC Role / Device Role / Timing Role: High-reliability surge bypass diode placed across DC-link to divert transient energy into discharge resistors. Use Value: 1200 V VRRM and 200 A IFSM rating ensure robust protection against 10 ms surges exceeding 800 V without degradation. |
| Industrial Motor Drive DC Bus | Renewable Energy Inverter Clamping |
Use Scenario: DC bus pre-charge and fault-current limiting in 400–800 V industrial servo drives. IC Role / Device Role / Timing Role: Fast-recovery clamp diode integrated into IGBT module auxiliary circuitry for overvoltage suppression during short-circuit events. Use Value: 1.3 °C/W Rth(j-c) and 175 °C Tj allow direct mounting to shared heatsink with power switches, simplifying thermal design. |
Use Scenario: DC-side overvoltage protection in solar string inverters subjected to lightning-induced transients. IC Role / Device Role / Timing Role: High-voltage clamping diode in crowbar circuit triggered by transient voltage detector to protect MPPT controller inputs. Use Value: Low IR leakage (<15 µA @ 125 °C) prevents false triggering and maintains system availability in hot desert environments. |
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 |
|---|---|---|---|
| IXYS MUR1512CT | Higher VF (1.45 V typ. @ 15 A, 25 °C); trr = 65 ns; TO-220AC package; no AEC-Q101 qualification | Not qualified for automotive; requires larger heatsink due to higher conduction loss and lower thermal conductivity package | Select only for cost-sensitive industrial designs where AEC-Q101 and surface-mount assembly are not required |
| Vishay VS-15EWH12 | Lower trr (45 ns typ.), but VF = 1.35 V @ 15 A, 150 °C; D²PAK; AEC-Q101 qualified; no published S-factor data | Lacks documented soft recovery behavior, increasing risk of EMI in high-dIF/dt OBC topologies | Prefer when absolute minimum trr dominates design priority, but verify snubber requirements in final layout |
Compared with MUR1512CT and VS-15EWH12, STTH1512GY-TR uniquely balances ultrafast recovery (53 ns), soft switching (S = 1.5), automotive qualification, and low VF (1.20 V) - enabling smaller filters, simpler thermal design, and guaranteed reliability in OBC and traction auxiliary systems.
Availability
STTH1512GY-TR is available at Aetrix Electronics and suitable for on-board battery chargers, DC-link surge protection, and industrial motor drive DC bus applications requiring stable component supply, long-term automotive-grade lifecycle support, and traceable ECOPACK® sourcing.
Supply support for STTH1512GY-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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.
STTH1512GY-TR belongs to ST's STTH automotive ultrafast diode product line, engineered specifically for high-reliability, high-voltage rectification in electric vehicle power electronics where thermal robustness, soft recovery, and AEC-Q101 compliance are mandatory.
FAQ
Is STTH1512GY-TR pin-compatible with STTH1512-Y?
Yes - STTH1512GY-TR and STTH1512-Y share identical D²PAK mechanical footprint, pinout, and electrical specifications. The "GY" suffix denotes tape-and-reel packaging (1000 pcs/reel), while "Y" indicates bulk packaging; both are functionally and thermally interchangeable in PCB layout.
What is the maximum recommended dIF/dt for reliable operation?
The datasheet specifies trr and IRM measurements up to −200 A/µs at 125 °C. For sustained reliability, ST recommends limiting dIF/dt to ≤150 A/µs in production designs - verified by Figure 4 and Figure 5 curves showing stable IRM and trr behavior below this threshold.
Does the thermal pad require solder mask opening or exposed copper?
Yes - the D²PAK thermal pad must be soldered directly to an unmasked copper area on the PCB. ST's recommended footprint (Figure 14) specifies 16.9 mm × 12.2 mm exposed copper with ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch) to inner ground planes to achieve specified Rth(j-c) = 1.3 °C/W.
Can STTH1512GY-TR replace older STTH1512D in existing designs?
No - STTH1512D uses TO-220AC package with different thermal and mechanical characteristics. While electrical ratings are similar, the D²PAK package of STTH1512GY-TR requires PCB redesign for footprint, thermal pad layout, and reflow profile; direct replacement is not mechanically feasible.
STTH1512GY-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):
- 1200 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 105 ns
- Current - Reverse Leakage @ Vr:
- 15 µA @ 1200 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- -40°C ~ 175°C
STTH1512GY-TR FAQ
1.How can I place an order for STTH1512GY-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1512GY-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 STTH1512GY-TR reliable?
The price and inventory of STTH1512GY-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1512GY-TR is usually 5 days.
3.What payment methods are accepted for STTH1512GY-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1512GY-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1512GY-TR?
STTH1512GY-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1512GY-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 STTH1512GY-TR?
For technical support, including STTH1512GY-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1512GY-TR requirements.
6.How does Aetrix verify that STTH1512GY-TR is sourced from the original manufacturer or authorized distributors?
All STTH1512GY-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 STTH1512GY-TR meets industry standards.
7.What is the process for return or replacement of STTH1512GY-TR?
All STTH1512GY-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH1512GY-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 STTH1512GY-TR part is unused and in its original packaging.
Return procedure for STTH1512GY-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH1512GY-TR 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
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…
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…
