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Vishay T15B16AHM3/H
- Part No.:
- T15B16AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
T15B16AHM3/H.pdf
- Description:
- 1.5KW,16V 5%,SMB PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,689
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Product details
Overview
T15B16AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive-grade circuit protection. It delivers 1500 W peak pulse power (10/1000 μs), clamps at 22.5 V under 68.9 A surge current, and operates up to 185 °C junction temperature-enabling robust protection of MOSFETs and sensor signal lines against inductive switching transients and lightning-induced surges.
For engineers reviewing the T15B16AHM3/H datasheet, T15B16AHM3/H pinout, T15B16AHM3/H application, or T15B16AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, SMB (DO-214AA) package with matte tin terminals, 13.6 V stand-off voltage, <1.0 μA reverse leakage at VWM, and MSL Level 1 reflow compatibility up to 260 °C.
Technical Context
The T15B16AHM3/H employs passivated anisotropic rectifier technology to achieve stable breakdown behavior across temperature. Its 0.078 %/°C temperature coefficient of VBR enables predictable clamping shift from −65 °C to +185 °C, supporting high-reliability automotive environments where thermal cycling is severe.
It meets IEC 61000-4-2 ESD immunity at ±30 kV (contact/air), and its unidirectional architecture provides low-capacitance transient suppression without DC blocking concerns. The device is rated for non-repetitive 10/1000 μs surge waveforms and derates linearly above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 / 16.0 / 16.8 V - ensures reliable triggering above system operating voltage while accommodating manufacturing spread |
| VWM | 13.6 V - maximum continuous reverse voltage before significant leakage; compatible with 12 V automotive systems |
| IPPM | 68.9 A - peak surge current it withstands at 10/1000 μs, defining minimum PCB trace and fuse sizing |
| VC @ IPPM | 22.5 V - maximum clamped voltage during surge, limiting stress on downstream ICs and MOSFETs |
| TJ max | +185 °C - enables operation in engine bay or powertrain control units without thermal derating penalties |
| ESD Rating | ±30 kV contact/air - exceeds IEC 61000-4-2 Level 4, eliminating need for additional ESD stages |
| MSL Level | Level 1 (260 °C peak) - supports standard lead-free reflow without baking or special handling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with cathode indicated by color band. Dimensions: 4.57 × 3.94 × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line; absorbs positive transients toward ground or lower-potential rail |
| Anode | Reference node | Typically tied to ground or common return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, TCT, and HTRB |
| Junction passivation | Reduces parameter drift and leakage increase under high-temperature bias, extending field life |
| 1500 W peak pulse power | Supports protection of 12 V CAN, LIN, and sensor interfaces against ISO 7637-2 Pulse 1/2a/5a transients |
| Very fast response time | Clamps within <1 ns-prevents voltage overshoot from damaging sensitive gate oxides or analog front-ends |
| MSL Level 1 rating | Enables direct placement into high-volume SMT lines without moisture sensitivity delays or pre-bake steps |
Applications
| Automotive Powertrain Control | Body Electronics Module Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs and sensor signal lines in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary TVS clamp on battery feed and crank position sensor lines. Use Value: Withstands 185 °C junction temperature and 1500 W surges, ensuring reliability in under-hood locations without derating. | Use Scenario: Safeguarding LIN bus transceivers and door module microcontrollers from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed at connector interface to shunt fast transients before they reach IC pins. Use Value: ±30 kV IEC 61000-4-2 rating eliminates need for secondary ESD components, reducing BOM count and layout area. |
| ADAS Camera Power Input | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Clamping voltage spikes on 12 V camera module power rails caused by nearby solenoid actuation or ignition noise. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 13.6 V) placed upstream of DC/DC converter input. Use Value: Low 1.0 μA leakage at VWM prevents quiescent current penalty in always-on vision systems. | Use Scenario: Protecting high-side and low-side gate drivers in 3-phase EPS motor controllers from inductive kickback. IC Role / Device Role / Timing Role: TVS on each half-bridge leg's supply rail to clamp flyback energy during PWM switching. Use Value: 22.5 V clamping voltage limits MOSFET VDS stress below 80 % of rated breakdown, improving long-term SOA margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-HF | Same SMB package, 16 V VBR, but 600 W PPPM (vs. 1500 W); no AEC-Q101 certification | Limited to non-automotive industrial or consumer use; insufficient for ISO 7637-2 Pulse 5a compliance | Select only if cost-sensitive and thermal/environmental stress is low |
| 1.5SMC16A | Same VBR range, 1500 W rating, but DO-214AB (SMC) package - 7.1 × 6.2 mm vs. SMB's 4.6 × 3.9 mm | Requires larger PCB footprint and higher mounting torque; not drop-in for space-constrained automotive modules | Choose when higher surge repetition tolerance is needed and board area permits |
Compared with SMBJ16A-HF and 1.5SMC16A, the T15B16AHM3/H uniquely combines AEC-Q101 qualification, 1500 W capability, and compact SMB packaging-making it the only option that satisfies automotive under-hood thermal, size, and reliability requirements simultaneously.
Availability
T15B16AHM3/H is available at Aetrix Electronics and suitable for automotive powertrain control, ADAS camera modules, electric power steering systems, and body electronics requiring stable component supply across extended temperature and high-surge environments.
Supply support for T15B16AHM3/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 qualification.
The T15B16AHM3/H belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for harsh-environment automotive transient suppression where thermal stability and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the T15B16AHM3/H at its rated peak pulse current?
The T15B16AHM3/H has a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current (IPPM) of 68.9 A under a 10/1000 μs waveform. This value is measured per Figure 1 and Table 1 in the Vishay datasheet 98360 and defines the upper voltage limit imposed on protected circuits during surge events. Maintaining VC below 24 V ensures compatibility with 12 V automotive ICs and MOSFETs rated for ≤30 V drain-source breakdown.
Is the T15B16AHM3/H suitable for use in engine control units (ECUs) operating at high ambient temperatures?
Yes, the T15B16AHM3/H is explicitly rated for junction temperatures up to +185 °C and is AEC-Q101 qualified-making it suitable for under-hood ECUs. Its 0.078 %/°C VBR temperature coefficient ensures predictable clamping behavior across the full −65 °C to +185 °C range. The T15B16AHM3/H maintains 1500 W surge capability down to TJ = 125 °C per Figure 2, supporting sustained operation in high-thermal-load environments without external heatsinking.
Does the T15B16AHM3/H meet industry standards for electrostatic discharge protection?
Yes, the T15B16AHM3/H meets IEC 61000-4-2 for electrostatic discharge immunity at ±30 kV for both contact and air discharge testing. This performance is verified per the Vishay datasheet 98360 and qualifies the device for use in automotive modules requiring Level 4 ESD robustness-such as infotainment head units, camera modules, and gateway ECUs-without supplemental ESD protection components.
What does the "HM3" suffix indicate in the T15B16AHM3/H part number?
The "HM3" suffix in T15B16AHM3/H denotes a halogen-free, RoHS-compliant construction with matte tin-plated leads that pass JESD 22-B102 solderability testing and JESD 201 Class 2 whisker resistance. It also confirms AEC-Q101 qualification and MSL Level 1 rating-ensuring compatibility with lead-free reflow processes peaking at 260 °C. The "/H" indicates packaging in 7" plastic tape and reel (750 units per reel).
How does the T15B16AHM3/H compare to bidirectional TVS diodes in automotive signal line protection?
The T15B16AHM3/H is unidirectional and optimized for DC power rail and single-polarity signal line protection-such as 12 V supply feeds or LIN bus lines-where reverse voltage is not expected. Unlike bidirectional TVS diodes, it offers lower leakage (<1.0 μA at VWM) and tighter VBR tolerance, improving efficiency and noise margin. For differential buses like CAN, a bidirectional device would be required; the T15B16AHM3/H is not suitable for such applications.
T15B16AHM3/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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 68.9A
- 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)
T15B16AHM3/H FAQ
1.How can I place an order for T15B16AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T15B16AHM3/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 T15B16AHM3/H reliable?
The price and inventory of T15B16AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T15B16AHM3/H is usually 5 days.
3.What payment methods are accepted for T15B16AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T15B16AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T15B16AHM3/H?
T15B16AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T15B16AHM3/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 T15B16AHM3/H?
For technical support, including T15B16AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T15B16AHM3/H requirements.
6.How does Aetrix verify that T15B16AHM3/H is sourced from the original manufacturer or authorized distributors?
All T15B16AHM3/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 T15B16AHM3/H meets industry standards.
7.What is the process for return or replacement of T15B16AHM3/H?
All T15B16AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T15B16AHM3/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 T15B16AHM3/H part is unused and in its original packaging.
Return procedure for T15B16AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T15B16AHM3/H Tags
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