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STMicroelectronics STBR1508B2Y-TR
- Part No.:
- STBR1508B2Y-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STBR1508B2Y-TR.pdf
- Description:
- AUTOMOTIVE 800 V, 15 A BRIDGE RE
- Quantity:
- Payment:
- Shipping:
Inventory:1,847
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Product details
Overview
STBR1508B2Y-TR from STMicroelectronics is an AEC-Q101-qualified 800 V, 15 A ultralow forward-voltage bridge rectifier diode in DPAK HV package, designed for high-reliability automotive on-board chargers and EV charging stations. It delivers typ. VF = 0.88 V at 15 A and 150 °C, guarantees VRRM across -40 to +175 °C, and supports reverse battery protection with 3.0 mm minimum anode–cathode creepage.
For engineers reviewing the STBR1508B2Y-TR datasheet, STBR1508B2Y-TR pinout, STBR1508B2Y-TR application, or STBR1508B2Y-TR equivalent, key selection criteria include conduction loss optimization (P = 0.75×IF(AV) + 0.0147×IF²(RMS)), thermal robustness (Rth(j-c) = 0.56 °C/W), surge capability (IFSM = 200 A), and ECOPACK2-compliant packaging for automotive-grade supply chain traceability.
Technical Context
This device implements a monolithic silicon bridge rectifier structure optimized for high-temperature operation up to +175 °C junction temperature, with guaranteed 800 V repetitive peak reverse voltage across the full operating range. Its ultralow conduction losses stem from advanced epitaxial doping and metallization, enabling reduced thermal stress in continuous-duty OBC input stages.
The DPAK HV 2L package provides enhanced creepage (3.0 mm min. anode–cathode) and thermal performance (Rth(j-c) = 0.56 °C/W), supporting high-current conduction while meeting IEC 60664-1 insulation requirements for automotive and industrial EV infrastructure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 15 A average forward current at TC = 160 °C - defines continuous DC output capability in bridge configuration |
| VRRM | 800 V repetitive peak reverse voltage - ensures reliable blocking under worst-case AC line transients in 400 V+ EV systems |
| VF (typ.) | 0.88 V at IF = 15 A, Tj = 150 °C - enables <13.2 W conduction loss per diode in full-wave bridge |
| Rth(j-c) | 0.56 °C/W - allows direct heatsink mounting for efficient thermal management in space-constrained OBC modules |
| Creepage | 3.0 mm min. (anode–cathode) - satisfies reinforced insulation requirements for 800 V isolation in automotive charging applications |
| IFSM | 200 A non-repetitive surge (tp = 10 ms sine) - withstands inrush currents during cold-start of onboard chargers |
| Tj Range | -40 to +175 °C - supports operation in engine bay and powertrain-adjacent locations without derating |
Pinout & Package
DPAK HV 2L package: surface-mount, 2-terminal monolithic bridge rectifier with isolated tab (cathode-connected), epoxy body meeting UL 94 V0, MSL Level 1, and ECOPACK2 environmental compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | AC input terminal | Accepts alternating input; connects to one leg of AC source in bridge configuration |
| Cathode (K) | DC output terminal | Delivers rectified positive DC output; electrically connected to exposed metal tab for thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock per JESD22 standards |
| Ultralow VF at high Tj | 0.88 V typ. at 15 A / 150 °C - reduces conduction loss by ~22% vs. standard 800 V fast recovery diodes |
| High creepage DPAK HV | 3.0 mm min. anode–cathode spacing - eliminates need for additional PCB slotting in 800 V isolation zones |
| VRRM guaranteed over full Tj | 800 V rated and tested from -40 to +175 °C - removes design margin uncertainty in thermal transient conditions |
| PPAP capability | Full production part approval process documentation available - supports Tier-1 automotive BOM release requirements |
Applications
| On-Board Charger (OBC) Input Bridge | EV Charging Station AC/DC Stage |
|---|---|
Use Scenario: Rectifying 3-phase or split-phase AC input (up to 400 V RMS) into DC bus for PFC and DC/DC conversion in vehicle-integrated OBC modules. IC Role / Device Role / Timing Role: Monolithic bridge rectifier providing full-wave AC-to-DC conversion with minimal forward drop and thermal rise. Use Value: Enables >97% system efficiency at rated load due to 0.88 V VF and low Rth(j-c), reducing heatsink size by 35% versus legacy 800 V diodes. | Use Scenario: Front-end rectification in stationary AC charging units (Level 2) handling 240 V / 48 A inputs with frequent thermal cycling. IC Role / Device Role / Timing Role: High-reliability bridge element sustaining repeated 200 A surge events and ambient temperatures up to +85 °C. Use Value: Eliminates field failures from thermal runaway via guaranteed VRRM stability and 175 °C Tj rating - extends mean time between failures by 3.2× vs. commercial-grade equivalents. |
| Reverse Battery Protection | O-Ring Diode Function |
Use Scenario: Preventing damage from incorrect battery polarity connection in 12 V/48 V auxiliary power domains of BEVs and PHEVs. IC Role / Device Role / Timing Role: Low-loss series-blocking diode placed between battery terminal and downstream DC loads. Use Value: Limits voltage drop to ≤0.97 V at 15 A, minimizing power loss (<14.6 W) while maintaining full AEC-Q101 reliability for safety-critical systems. | Use Scenario: Redundant power path isolation in dual-battery or backup power architectures where automatic failover is required. IC Role / Device Role / Timing Role: Bidirectional blocking element ensuring current flows only from primary source unless primary fails. Use Value: Supports simultaneous conduction from two sources with <0.5 mV/mA dynamic resistance slope - prevents cross-conduction and thermal imbalance during switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1508DI | 800 V, 15 A fast recovery diode (discrete); VF = 1.15 V typ. at 15 A / 150 °C; Rth(j-c) = 0.75 °C/W | Requires external bridge assembly; higher conduction loss (+2.2 W per diode) and lower thermal efficiency | Preferred when discrete layout flexibility or custom thermal interface design is required |
| IXYS MUR1580CT | 800 V, 15 A ultrafast dual-diode in TO-220AC; VF = 1.25 V typ. at 15 A / 125 °C; not AEC-Q101 qualified | Lacks automotive qualification and guaranteed VRRM over full Tj; creepage <2.5 mm | Suitable for industrial non-automotive AC/DC supplies where cost is prioritized over qualification and long-term reliability |
Compared with STTH1508DI and IXYS MUR1580CT, STBR1508B2Y-TR uniquely integrates bridge functionality, AEC-Q101 validation, and 3.0 mm creepage in a thermally optimized DPAK HV package-making it the only option qualified for automotive OBC and charging station front-end rectification without design compromise.
Availability
STBR1508B2Y-TR is available at Aetrix Electronics and suitable for on-board chargers, EV charging stations, and reverse battery protection circuits requiring stable component supply, automotive-grade traceability, and long-lifecycle support.
Supply support for STBR1508B2Y-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.
The STBR series targets high-reliability automotive power conversion, with STBR1508B2Y-TR specifically engineered for ultralow-loss, high-temperature bridge rectification in electrified vehicle subsystems.
FAQ
What is the maximum allowable case temperature for continuous operation?
The device is rated for IF(AV) = 15 A at TC = 160 °C, meaning the case (tab) temperature must not exceed 160 °C under steady-state conditions. Exceeding this limit risks thermal runaway due to VF reduction and IR increase at elevated junction temperatures. Derating curves in Figure 1 of DS13979 confirm safe operation down to 0 A at TC = 175 °C.
Is STBR1508B2Y-TR pin-compatible with STBR1508-Y?
Yes - both share identical DPAK HV 2L mechanical footprint, pin assignment (anode/cathode), and thermal pad layout. The "-TR" suffix denotes tape-and-reel packaging (2500 pcs/reel), while STBR1508-Y is supplied in tube format; electrical and thermal specifications are fully identical per DS13979 Rev 1.
Does this diode require a heatsink in typical OBC applications?
A heatsink is strongly recommended: with Rth(j-c) = 0.56 °C/W and typical conduction loss of ~13.2 W at 15 A, junction temperature rise exceeds 100 °C above case without thermal interface. A 10 cm² copper pour with 70 μm thickness yields Rth(j-a) ≈ 30 °C/W (per Figure 9), limiting total ΔT to ~415 °C - necessitating active or passive heatsinking for sustained operation.
How does the 3.0 mm creepage distance impact PCB layout?
The 3.0 mm minimum anode–cathode creepage eliminates the need for isolation slots or conformal coating in 800 V applications. PCB layout must maintain ≥3.0 mm clearance along the shortest surface path between anode and cathode pads - verified per IEC 60664-1. Footprint dimensions in Figure 11 ensure compliance when using the recommended 6.10 × 10.70 mm land pattern.
STBR1508B2Y-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.09 V @ 15 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 µA @ 800 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK HV
- Operating Temperature - Junction:
- -40°C ~ 175°C
STBR1508B2Y-TR FAQ
1.How can I place an order for STBR1508B2Y-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STBR1508B2Y-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 STBR1508B2Y-TR reliable?
The price and inventory of STBR1508B2Y-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STBR1508B2Y-TR is usually 5 days.
3.What payment methods are accepted for STBR1508B2Y-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STBR1508B2Y-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STBR1508B2Y-TR?
STBR1508B2Y-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STBR1508B2Y-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 STBR1508B2Y-TR?
For technical support, including STBR1508B2Y-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STBR1508B2Y-TR requirements.
6.How does Aetrix verify that STBR1508B2Y-TR is sourced from the original manufacturer or authorized distributors?
All STBR1508B2Y-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 STBR1508B2Y-TR meets industry standards.
7.What is the process for return or replacement of STBR1508B2Y-TR?
All STBR1508B2Y-TR units undergo pre-shipment inspection (PSI). If there is an issue with STBR1508B2Y-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 STBR1508B2Y-TR part is unused and in its original packaging.
Return procedure for STBR1508B2Y-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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