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Vishay General Semiconductor - Diodes Division T15B36AHM3/I
- Part No.:
- T15B36AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
T15B36AHM3/I.pdf
- Description:
- 1500 W UNI-DIRECTIONAL TVS IN SM
- Quantity:
- Payment:
- Shipping:
Inventory:3,196
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Product details
Overview
T15B36AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive-grade overvoltage protection of sensitive electronics. It features a 36 V nominal breakdown voltage (VBR), 30.8 V stand-off voltage (VWM), 49.9 V maximum clamping voltage at 31.1 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed on signal lines and MOSFET gates in automotive sensor units.
For engineers reviewing the T15B36AHM3/I datasheet, T15B36AHM3/I pinout, T15B36AHM3/I application, or T15B36AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, MSL Level 1 rating, halogen-free HM3 packaging, unidirectional polarity, and verified clamping performance under lightning- and switching-induced transients per IEC 61000-4-2 (±30 kV).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low leakage. Its unidirectional architecture provides robust forward conduction path while clamping reverse transients with sub-nanosecond response time and minimal capacitance - critical for protecting high-speed sensor interfaces without signal distortion.
Rated for continuous operation from –65 °C to +185 °C, it meets automotive reliability requirements including JESD201 Class 2 whisker resistance and UL 94 V-0 molding compound compliance. The device sustains 1500 W peak pulse power under standardized 10/1000 µs waveform conditions, with derating applied above 25 °C ambient per published thermal curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 36.0 V - ensures reliable triggering above system operating voltage while maintaining margin against false activation |
| VWM | 30.8 V - maximum continuous reverse working voltage compatible with 24 V automotive supply rails |
| VC @ IPPM | 49.9 V - clamping voltage limits protected circuit stress during 31.1 A surge, preserving downstream IC integrity |
| PPPM | 1500 W - handles high-energy transients from inductive load switching or ESD events per IEC 61000-4-2 |
| TJ max. | +185 °C - supports under-hood deployment in engine control modules and ADAS sensor housings |
| Package | SMB (DO-214AA) - industry-standard SMD footprint enabling automated assembly and thermal dissipation via PCB copper |
| AEC-Q101 | Qualified - validated for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-indicating band marking, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VBR exceeded |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and thermal cycling |
| MSL Level 1 | Enables reflow soldering at 260 °C peak without preconditioning, simplifying manufacturing flow |
| 30 kV ESD immunity | Withstands contact and air discharge per IEC 61000-4-2 - eliminates need for additional ESD protection stages |
| Halogen-free HM3 suffix | Meets RoHS and automotive material compliance standards (JESD201 Class 2 whisker resistance) |
| Low IR at VWM | 1.0 μA max reverse leakage at 30.8 V - prevents power loss and false triggering in always-on circuits |
Applications
| Automotive Sensor Signal Protection | Engine Control Unit (ECU) Power Line Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load-dump and alternator ripple in vehicle cabins. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before signal conditioning stage. Use Value: Maintains signal fidelity below 49.9 V clamping threshold while surviving repeated 1500 W surges - extends sensor module MTBF in harsh environments. | Use Scenario: Safeguarding 5 V/3.3 V regulator inputs in ECUs subjected to ISO 7637-2 Pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Primary clamping device across input rail, absorbing energy before LDO or DC-DC converter input stage. Use Value: 30.8 V VWM allows stable operation during 24 V nominal bus fluctuations; 185 °C rating enables placement near hot components. |
| ADAS Camera Module Interface Protection | Body Control Module (BCM) LIN Bus Line Protection |
Use Scenario: Shielding MIPI CSI-2 differential pairs in surround-view camera modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector interface to minimize stub length and preserve signal integrity. Use Value: Sub-nanosecond response and <10 pF junction capacitance prevent bit errors in high-speed video links up to 1.5 Gbps. | Use Scenario: Guarding LIN transceiver pins against battery disconnect spikes and electrostatic discharge in door modules and lighting nodes. IC Role / Device Role / Timing Role: Unidirectional suppression on LIN data line referenced to local ground, coordinated with transceiver's internal protection. Use Value: 49.9 V clamping voltage aligns with LIN physical layer tolerance; AEC-Q101 qualification ensures lifetime reliability in cyclic thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A (Vishay) | Same SMB package, 36 V VBR, but rated for 400 W PPPM and not AEC-Q101 qualified | Targeted at industrial/commercial designs where automotive qualification is not required | Select when cost sensitivity outweighs automotive reliability requirements and surge energy is lower |
| 1.5SMC36A (ON Semiconductor) | Same 36 V VBR and SMB package, 1500 W rating, but only AEC-Q200 (passive) qualified - no active device stress testing | Suitable for non-safety-critical body electronics where full AEC-Q101 validation is optional | Choose if supply chain diversification is prioritized and thermal derating margins allow for lower TJ max. (175 °C vs. 185 °C) |
Compared with SMAJ36A-E3/5A and 1.5SMC36A, the T15B36AHM3/I delivers higher junction temperature capability (+185 °C), full AEC-Q101 qualification, and HM3-compliant materials - making it the preferred choice for under-hood and safety-relevant automotive subsystems requiring extended thermal endurance and process-validated reliability.
Availability
T15B36AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) power line clamping, ADAS camera interface hardening, and body control module (BCM) LIN bus safeguarding requiring stable component supply across production lifecycles.
Supply support for T15B36AHM3/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The T15B36AHM3/I belongs to Vishay's PAR® (Protection Against Transients) family - engineered specifically for robust, high-energy transient suppression in automotive electronics where thermal resilience, ESD immunity, and long-term stability are mandatory.
FAQ
What is the maximum clamping voltage of the T15B36AHM3/I at its rated peak pulse current?
The T15B36AHM3/I has a maximum clamping voltage (VC) of 49.9 V at its rated peak pulse current of 31.1 A (10/1000 µs waveform). This value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings. The T15B36AHM3/I maintains this clamping performance across its full operating temperature range.
Is the T15B36AHM3/I qualified for automotive applications?
Yes, the T15B36AHM3/I is fully AEC-Q101 qualified, having passed rigorous stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and unbiased highly accelerated stress testing (uHAST). Its qualification confirms suitability for automotive powertrain, chassis, and ADAS systems where reliability under thermal, mechanical, and electrical stress is mandatory - a requirement explicitly met by the T15B36AHM3/I.
What does the "HM3" suffix indicate in T15B36AHM3/I?
The "HM3" suffix in T15B36AHM3/I denotes halogen-free construction, RoHS compliance, AEC-Q101 qualification, and JESD201 Class 2 whisker resistance. It also specifies matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. The "I" denotes 13-inch tape-and-reel packaging (3200 units per reel), distinguishing it from the "H" variant (750 units, 7-inch reel). All specifications apply identically to both T15B36AHM3/H and T15B36AHM3/I.
How does the T15B36AHM3/I compare to standard SMAJ series TVS diodes?
The T15B36AHM3/I offers identical 36 V VBR and SMB package as SMAJ36A but delivers 1500 W peak pulse power (vs. 400 W for SMAJ36A), +185 °C junction rating (vs. +150 °C), and full AEC-Q101 qualification (SMAJ36A is not automotive-qualified). These enhancements make the T15B36AHM3/I suitable for under-hood applications where higher energy transients and extreme thermal environments demand superior performance - capabilities inherent to the T15B36AHM3/I design.
What is the reverse leakage current of the T15B36AHM3/I at its stand-off voltage?
The T15B36AHM3/I exhibits a maximum reverse leakage current (IR) of 1.0 μA at its stand-off voltage (VWM) of 30.8 V and ambient temperature of 25 °C. At elevated junction temperature (150 °C), leakage remains ≤10.0 μA - confirming stable blocking behavior across automotive operating ranges. This low leakage minimizes standby power loss and avoids false triggering in always-on sensor and communication circuits using the T15B36AHM3/I.
T15B36AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 31.1A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
T15B36AHM3/I FAQ
1.How can I place an order for T15B36AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T15B36AHM3/I 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 T15B36AHM3/I reliable?
The price and inventory of T15B36AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T15B36AHM3/I is usually 5 days.
3.What payment methods are accepted for T15B36AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T15B36AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T15B36AHM3/I?
T15B36AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T15B36AHM3/I 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 T15B36AHM3/I?
For technical support, including T15B36AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T15B36AHM3/I requirements.
6.How does Aetrix verify that T15B36AHM3/I is sourced from the original manufacturer or authorized distributors?
All T15B36AHM3/I 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 T15B36AHM3/I meets industry standards.
7.What is the process for return or replacement of T15B36AHM3/I?
All T15B36AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T15B36AHM3/I, 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 T15B36AHM3/I part is unused and in its original packaging.
Return procedure for T15B36AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T15B36AHM3/I Tags
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