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Vishay T15B36AHM3/H
- Part No.:
- T15B36AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
T15B36AHM3/H.pdf
- Description:
- 1.5KW,36V 5%,SMB PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,281
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Product details
Overview
T15B36AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive-grade overvoltage protection of sensitive electronics. It delivers 1500 W peak pulse power (10/1000 μs), clamps at 49.9 V under 31.1 A surge, and operates with 34.2–37.8 V breakdown voltage at 1 mA test current. Its SMB (DO-214AA) package supports high-reliability applications including MOSFET gate protection and sensor signal line hardening in engine control units.
For engineers reviewing the T15B36AHM3/H datasheet, T15B36AHM3/H pinout, T15B36AHM3/H application, or T15B36AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, 30.8 V stand-off voltage, 1.0 μA reverse leakage at VWM, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve stable clamping performance across temperature extremes. Its unidirectional architecture enables precise reverse-biased transient suppression without forward conduction interference during normal operation.
The device is rated for non-repetitive 10/1000 μs surge waveforms and exhibits a +0.090 %/°C temperature coefficient of breakdown voltage - enabling predictable VBR drift up to TJ = 185 °C. It meets IEC 61000-4-2 ±30 kV contact/air ESD immunity and complies with JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 34.2 V min / 36.0 V nom / 37.8 V max at 1 mA - defines minimum voltage at which clamping initiates reliably |
| Stand-off Voltage (VWM) | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| Clamping Voltage (VC) | 49.9 V at 31.1 A IPPM - peak voltage seen by protected circuit during worst-case 10/1000 μs surge |
| Peak Pulse Power (PPPM) | 1500 W (10/1000 μs) - determines energy-handling capacity for lightning/inductive-switching transients |
| Junction Temperature Range | −65 °C to +185 °C - enables deployment in under-hood automotive environments without derating |
| ESD Immunity | ±30 kV per IEC 61000-4-2 - protects against human-body-model electrostatic discharge events |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode | Reference node | Typically tied to system ground or low-impedance return path for clamping loop integrity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use under stress conditions including temperature cycling, HTRB, and ESD |
| 185 °C junction capability | Enables placement near heat sources (e.g., power converters) without thermal derating penalties |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking preconditioning |
| Junction passivation design | Reduces parameter drift and improves long-term reliability under high-humidity/high-temperature bias |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control modules from load-dump transients and alternator ripple spikes. IC Role / Device Role / Timing Role: TVS diode placed in parallel with input filter capacitor to clamp surges above 30.8 V before reaching downstream DC/DC regulators. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Shields analog outputs of pressure/temperature sensors from ESD and switching noise on harness-connected lines. IC Role / Device Role / Timing Role: Unidirectional TVS connected between sensor output and ground to suppress fast-rising transients while preserving signal fidelity. Use Value: Maintains sub-100 pF junction capacitance to avoid signal distortion in 0–5 kHz sensor bandwidths. |
| MOSFET Gate Driver Protection | Body Control Module (BCM) LIN Bus Protection |
Use Scenario: Guards high-side N-channel MOSFET gates in lighting drivers against inductive kickback from relay coils or solenoids. IC Role / Device Role / Timing Role: Placed between gate and source to clamp negative-going transients below −0.7 V and positive spikes above VGS(max). Use Value: Limits gate oxide stress with 49.9 V clamping at 31.1 A, preventing premature failure in 100,000-cycle actuator systems. | Use Scenario: Safeguards LIN transceiver inputs in door modules exposed to cable coupling and battery disconnect transients. IC Role / Device Role / Timing Role: Connected across LIN bus pair (LIN-H/L) in common-mode configuration to absorb differential and common-mode surges. Use Value: Provides ±30 kV IEC 61000-4-2 ESD robustness while maintaining <1.0 μA leakage at 12 V nominal bus voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-H | Same SMB package, 36 V VBR range, but lower 600 W PPPM rating and no AEC-Q101 qualification | Limited to industrial/commercial use; not validated for automotive temperature cycling or humidity testing | Select when cost sensitivity outweighs automotive qualification requirements |
| TPSMA6L36A | 36 V VBR, 1500 W PPPM, AEC-Q101 qualified, but uses SMA package (smaller footprint, lower thermal mass) | Lower thermal dissipation margin in sustained surge scenarios; requires tighter layout for thermal relief | Choose for space-constrained PCBs where 185 °C TJ rating remains critical |
Compared with SMBJ36A-H and TPSMA6L36A, the T15B36AHM3/H uniquely combines AEC-Q101 qualification, 1500 W surge rating, and 185 °C junction capability in the SMB outline - making it the only option qualified for under-hood automotive power rail protection without thermal derating.
Availability
T15B36AHM3/H is available at Aetrix Electronics and suitable for automotive power distribution systems, engine management subsystems, and body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for T15B36AHM3/H 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade validation.
The T15B36AHM3/H belongs to Vishay's PAR® family of high-power TVS diodes engineered specifically for harsh-environment automotive electronics protection - targeting ISO 7637-2 compliance and extended lifetime under thermal cycling stress.
FAQ
What is the maximum clamping voltage of the T15B36AHM3/H under a 10/1000 μs surge?
The T15B36AHM3/H has a maximum clamping voltage (VC) of 49.9 V at 31.1 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value ensures protected circuits experience no more than 49.9 V during worst-case transient events, directly supporting design margins for 3.3 V, 5 V, and 12 V ICs in automotive applications.
Is the T15B36AHM3/H qualified for automotive use per AEC-Q101?
Yes, the T15B36AHM3/H is fully AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number: 98360). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD - validating its suitability for under-hood and safety-critical automotive subsystems.
What does the 'HM3' suffix indicate in T15B36AHM3/H?
The 'HM3' suffix in T15B36AHM3/H denotes halogen-free construction, RoHS compliance, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance. The '/H' indicates packaging in 7" diameter plastic tape and reel with 750 units per reel - a standard logistics format for SMT assembly lines.
Can the T15B36AHM3/H replace the T15B36A in existing designs?
Yes, the T15B36AHM3/H is a direct replacement for T15B36A with identical electrical characteristics and SMB (DO-214AA) mechanical form factor. The HM3 variant adds halogen-free, RoHS-compliant, and whisker-resistant features without altering VBR, VC, or thermal performance - enabling drop-in compliance upgrades.
What is the junction temperature limit and how does it impact board layout?
The T15B36AHM3/H supports a maximum junction temperature of +185 °C, allowing placement near high-power components without thermal derating. To maintain this rating, PCB layout must provide ≥10 mm² of 2-oz copper pour connected to both terminals, minimizing thermal resistance and ensuring reliable operation in engine bay environments.
T15B36AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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/H FAQ
1.How can I place an order for T15B36AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T15B36AHM3/H 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/H reliable?
The price and inventory of T15B36AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T15B36AHM3/H is usually 5 days.
3.What payment methods are accepted for T15B36AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T15B36AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T15B36AHM3/H?
T15B36AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T15B36AHM3/H 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/H?
For technical support, including T15B36AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T15B36AHM3/H requirements.
6.How does Aetrix verify that T15B36AHM3/H is sourced from the original manufacturer or authorized distributors?
All T15B36AHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of T15B36AHM3/H?
All T15B36AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T15B36AHM3/H, 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/H part is unused and in its original packaging.
Return procedure for T15B36AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T15B36AHM3/H Tags
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