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Vishay T15B30AHM3/H
- Part No.:
- T15B30AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
T15B30AHM3/H.pdf
- Description:
- 1.5KW,30V 5%,SMB PAR
- Quantity:
- Payment:
- Shipping:
Inventory:6,236
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Product details
Overview
T15B30AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on automotive sensor signal lines and MOSFET gate drivers. It delivers 1500 W peak pulse power (10/1000 μs), features a 30 V nominal breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 37.4 A peak current, and operates up to +185 °C junction temperature.
For engineers reviewing the T15B30AHM3/H datasheet, T15B30AHM3/H pinout, T15B30AHM3/H application, or T15B30AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, SMB (DO-214AA) package compatibility with high-reliability automotive PCB layouts, MSL Level 1 reflow capability, and verified 30 kV IEC 61000-4-2 ESD immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping performance across -65 °C to +185 °C operating range. Its unidirectional architecture provides low-leakage reverse blocking (≤1.0 μA at 25.6 V) while maintaining fast response time and tight VBR tolerance (±5% at 1.0 mA test current).
The device is optimized for high-temperature stability: VBR exhibits +0.088%/°C temperature coefficient, enabling predictable clamping behavior under under-hood thermal stress. Its 1500 W PPPM rating is validated per ANSI/IEEE C62.35 with 10/1000 μs waveform and derated linearly above 25 °C ambient per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V - Ensures reliable turn-on before downstream IC damage at system-level surge thresholds |
| VWM | 25.6 V - Maximum continuous reverse working voltage compatible with 24 V automotive supply rails |
| VC @ IPPM | 41.4 V - Clamps 37.4 A surge to safe level for protected 3.3 V/5 V logic interfaces |
| PPPM | 1500 W - Handles ISO 7637-2 Pulse 1/2a/3a transients without degradation |
| TJ max | +185 °C - Supports placement near powertrain ECUs and under-bonnet modules |
| ESD immunity | 30 kV contact/air (IEC 61000-4-2) - Eliminates need for secondary ESD protection on sensor inputs |
| MSL rating | Level 1 (260 °C peak) - Compatible with standard lead-free reflow profiles without baking |
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) | Surge current sink | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| Anode | Reference node | Typically tied to system ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Junction passivation | Prevents moisture ingress and metallization corrosion in humid under-hood environments |
| 185 °C junction rating | Enables direct mounting on engine control units without thermal derating penalties |
| 1500 W peak pulse power | Withstands repeated load-dump and inductive kick events per ISO 16750-2 |
| MSL Level 1 | Supports single-pass reflow assembly without pre-bake, reducing manufacturing cost and risk |
Applications
| Automotive Sensor Protection | Power MOSFET Gate Protection |
|---|---|
Use Scenario: Protecting analog output of pressure/temperature sensors in engine bay against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤41.4 V, preventing latch-up or oxide breakdown in 3.3 V ADC front-end while maintaining <1.0 μA leakage at 25.6 V. | Use Scenario: Shielding N-channel MOSFET gate-source terminals from Miller-induced spikes during high-di/dt switching in motor drivers. IC Role / Device Role / Timing Role: TVS connected directly across gate and source pins to clamp sub-100 ns spikes. Use Value: Fast response and 41.4 V clamping prevent gate oxide rupture during 100 V/ns transients, preserving FET reliability over 10⁶ cycles. |
| Infotainment Interface Protection | Body Control Module (BCM) LIN Bus |
Use Scenario: Guarding USB, CAN, or LVDS lines in head-unit displays against ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS installed at connector entry point, before ESD-sensitive PHY ICs. Use Value: 30 kV IEC 61000-4-2 contact discharge immunity eliminates field failures without adding series impedance or signal distortion. | Use Scenario: Safeguarding LIN transceiver pins in door modules exposed to battery disconnect transients and jump-start surges. IC Role / Device Role / Timing Role: TVS placed on LIN bus line between transceiver and external harness connector. Use Value: 25.6 V VWM ensures no interference with 12 V LIN signaling; 41.4 V VC protects transceiver's ±40 V absolute max rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Same SMB package, identical VBR (28.5–31.5 V), but lower PPPM (600 W) and higher VC (48.4 V) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 1 in 24 V systems | Select only if system-level surge energy is confirmed ≤600 W and clamping margin >10 V is acceptable |
| SMCJ30A | Larger SMC (DO-214AB) package, same VBR, higher PPPM (3000 W), lower VC (48.4 V), but 2× footprint area | Required where 3000 W surge handling is mandated, but board space allows larger footprint | Choose when higher surge margin is needed and layout permits 2.5 mm × 4.5 mm vs. 2.2 mm × 3.9 mm |
Compared with SMBJ30A and SMCJ30A, the T15B30AHM3/H uniquely balances 1500 W surge capacity, 41.4 V clamping, AEC-Q101 qualification, and compact SMB footprint-making it optimal for space-constrained automotive modules requiring certified reliability without over-engineering.
Availability
T15B30AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, power MOSFET gate safeguarding, and infotainment interface hardening requiring stable component supply across production lifecycles.
Supply support for T15B30AHM3/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The T15B30AHM3/H belongs to the PAR® family of transient voltage suppressors engineered specifically for robust electromagnetic immunity in automotive powertrain, chassis, and body electronics under extreme thermal and electrical stress.
FAQ
What is the maximum clamping voltage of the T15B30AHM3/H at its rated peak pulse current?
The T15B30AHM3/H has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current (IPPM) of 37.4 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains within safe operating limits during standardized surge events. The T15B30AHM3/H maintains this clamping performance across its full -65 °C to +185 °C junction temperature range.
Is the T15B30AHM3/H qualified for automotive applications?
Yes, the T15B30AHM3/H is AEC-Q101 qualified and explicitly rated for automotive use. It meets requirements for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per JEDEC standards. Its 185 °C maximum junction temperature, MSL Level 1 reflow rating, and 30 kV IEC 61000-4-2 ESD immunity confirm suitability for engine control units, body modules, and ADAS sensor interfaces. The T15B30AHM3/H carries the HM3 suffix denoting halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
What does the "HM3" suffix indicate in T15B30AHM3/H?
The "HM3" suffix in T15B30AHM3/H specifies halogen-free molding compound, RoHS compliance, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance. It also denotes matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. The trailing "/H" indicates packaging in 7″ plastic tape and reel with 750 units per reel. This full designation ensures traceability to Vishay's qualified automotive production lot controls and material declarations per document 99912.
Can the T15B30AHM3/H replace older SMB-format TVS diodes like P6SMB30A?
The T15B30AHM3/H is not a direct drop-in replacement for P6SMB30A due to differences in surge rating and thermal design. While both use SMB packages and share similar VBR, the T15B30AHM3/H offers 1500 W PPPM (vs. 600 W for P6SMB30A) and +185 °C TJ (vs. +150 °C). Layout changes may be needed to accommodate higher thermal dissipation. Always verify clamping behavior and PCB thermal relief in the final design before substituting the T15B30AHM3/H.
What is the leakage current specification for the T15B30AHM3/H at its working voltage?
The T15B30AHM3/H exhibits a maximum reverse leakage current (IR) of 1.0 μA at its stand-off voltage (VWM) of 25.6 V and ambient temperature of 25 °C. At elevated junction temperature (150 °C), leakage remains ≤10.0 μA under the same VWM. This low-leakage performance ensures minimal power loss and signal integrity impact in always-on automotive circuits, such as LIN bus nodes or sensor bias networks, where the T15B30AHM3/H is commonly deployed.
T15B30AHM3/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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 37.4A
- 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)
T15B30AHM3/H FAQ
1.How can I place an order for T15B30AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T15B30AHM3/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 T15B30AHM3/H reliable?
The price and inventory of T15B30AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T15B30AHM3/H is usually 5 days.
3.What payment methods are accepted for T15B30AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T15B30AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T15B30AHM3/H?
T15B30AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T15B30AHM3/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 T15B30AHM3/H?
For technical support, including T15B30AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T15B30AHM3/H requirements.
6.How does Aetrix verify that T15B30AHM3/H is sourced from the original manufacturer or authorized distributors?
All T15B30AHM3/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 T15B30AHM3/H meets industry standards.
7.What is the process for return or replacement of T15B30AHM3/H?
All T15B30AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T15B30AHM3/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 T15B30AHM3/H part is unused and in its original packaging.
Return procedure for T15B30AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T15B30AHM3/H Tags
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