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Vishay General Semiconductor - Diodes Division TPSMB11AHE3/5BT
- Part No.:
- TPSMB11AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB11AHE3/5BT.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,364
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Product details
Overview
TPSMB11AHE3/5BT 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 power rails and signal lines. It features a 11.0 V nominal breakdown voltage (VBR), 9.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 15.6 V maximum clamping voltage at 38.5 A, and operates up to +185 °C junction temperature - enabling robust protection in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the TPSMB11AHE3/5BT datasheet, TPSMB11AHE3/5BT pinout, TPSMB11AHE3/5BT application, or TPSMB11AHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C rating, and clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance. Its 10/1000 µs waveform response supports repetitive surge handling at 0.01 % duty cycle, with clamping voltage tightly controlled at 15.6 V under 38.5 A peak current.
The device is rated for operation from –65 °C to +185 °C, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and carries AEC-Q101 qualification - confirming suitability for automotive-grade board-level ESD and surge protection where reliability under thermal stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 / 11.0 / 11.6 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 9.4 V - maximum continuous reverse voltage before leakage exceeds 2 µA, compatible with 9 V nominal supply rails |
| VC @ IPPM | 15.6 V - clamps 38.5 A surge to safe levels for downstream 12 V logic or MOSFET gate drivers |
| PPPM | 600 W - handles high-energy transients from inductive loads (e.g., solenoids, relays) without failure |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| IR @ VWM | 2 µA - ultra-low leakage preserves battery life in always-on sensor nodes and low-power systems |
| Package | SMB (DO-214AA) - industry-standard SMD footprint with 0.205" × 0.220" pad layout and RoHS-compliant matte tin plating |
Pinout & Package
TPSMB11AHE3/5BT is housed in an SMB (DO-214AA) surface-mount package with two terminals: cathode (marked by color band) and anode. The device is unidirectional and must be oriented with the cathode toward the protected line's higher potential side to enable proper clamping during positive transients.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink terminal | Connected to protected line (e.g., 12 V rail); conducts during overvoltage events to shunt energy to ground |
| Anode | Reference/return terminal | Typically tied to system ground or lower-potential node; completes clamping path during transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Stabilizes VBR drift across temperature and lifetime, ensuring consistent clamping in automotive thermal cycles |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-related popcorn failure |
| Low clamping ratio (VC/VBR) | 1.42 - minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| 75 A IFSM rating | Withstands 8.3 ms half-sine surge events (e.g., load dump) without degradation when properly mounted |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V power distribution networks in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between battery input and DC/DC converter input stage. Use Value: Clamps 15.6 V at 38.5 A to prevent overvoltage damage to downstream regulators and microcontrollers under ISO 7637-2 Pulse 5a conditions. |
Use Scenario: Shielding analog output lines of pressure or temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and ground, adjacent to connector interface. Use Value: Limits transient voltage to ≤15.6 V within nanoseconds, preserving 12-bit ADC accuracy and preventing latch-up in signal conditioning amplifiers. |
| Consumer Device USB Port Protection | Telecom Equipment DC Input Stage |
Use Scenario: Safeguarding USB VBUS lines in portable docking stations exposed to hot-plug and contact ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB power switch ICs and port controllers. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) while maintaining <2 µA leakage at 5 V, avoiding standby current drain. |
Use Scenario: Securing 48 V DC input of PoE-powered network switches against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on main DC input before bulk capacitor and DC/DC front-end. Use Value: Delivers 600 W pulse power handling with 185 °C junction rating, supporting continuous operation in sealed telecom enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same VBR range (10.5–11.6 V), but lower PPPM (400 W) and lower IPPM (32.3 A); SMB package identical | Limited to lower-energy transients (e.g., board-level ESD only); not recommended for automotive load dump | Select SMAJ11A only if system surge energy is confirmed ≤400 W and AEC-Q101 is not required. |
| TPSMB11AHM3/5BT | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 suffix vs. HE3) | No functional difference; HM3 variant required where halogen-free compliance is mandated (e.g., EU automotive Tier 1) | Choose TPSMB11AHM3/5BT when material compliance (IPC-1752, JEDEC JS709) overrides cost or availability considerations. |
Compared with SMAJ11A and TPSMB11AHM3/5BT, the TPSMB11AHE3/5BT offers full 600 W surge capability and AEC-Q101 validation in a cost-optimized RoHS-compliant build, making it the preferred choice for production automotive and industrial designs requiring verified high-energy clamping.
Availability
TPSMB11AHE3/5BT is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface protection, and telecom DC input staging requiring stable component supply, long-term lifecycle support, and AEC-Q101-qualified reliability.
Supply support for TPSMB11AHE3/5BT 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The TPSMB series was engineered specifically for high-temperature, high-surge environments - delivering AEC-Q101-qualified transient suppression in compact SMB packages for next-generation vehicle ECUs and ruggedized IoT edge nodes.
FAQ
What is the clamping voltage of TPSMB11AHE3/5BT at its rated peak pulse current?
The TPSMB11AHE3/5BT has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current (IPPM) of 38.5 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88406 and reflects worst-case clamping performance at TA = 25 °C with specified PCB mounting conditions (0.2" × 0.2" copper pads).
Is TPSMB11AHE3/5BT qualified for automotive applications?
Yes, TPSMB11AHE3/5BT is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 23-Jan-2024 (Document Number: 88406). The HE3 suffix denotes RoHS-compliant and AEC-Q101-qualified construction, validated for automotive-grade reliability including high-temperature operation up to +185 °C junction temperature.
What does the "HE3" suffix mean in TPSMB11AHE3/5BT?
The "HE3" suffix in TPSMB11AHE3/5BT indicates a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads, JESD201 Class 2 whisker resistance, and MSL Level 1 moisture sensitivity rating. It is distinct from the HM3 variant, which adds halogen-free compound compliance while retaining identical electrical specifications.
Can TPSMB11AHE3/5BT replace TPSMB11AHM3/5BT in a design?
TPSMB11AHE3/5BT and TPSMB11AHM3/5BT share identical electrical parameters, package, and AEC-Q101 qualification - differing only in halogen content of the molding compound. Substitution is electrically valid, but requires verification that halogen-free compliance is not contractually mandated for the target application or customer tier.
What is the maximum reverse leakage current of TPSMB11AHE3/5BT at its stand-off voltage?
At its 9.4 V stand-off voltage (VWM) and TA = 25 °C, the TPSMB11AHE3/5BT exhibits a maximum reverse leakage current (IR) of 2 µA. At elevated temperature (TJ = 150 °C), leakage increases to a maximum of 5 µA - a value confirmed in Table 1 of the Vishay datasheet 88406.
TPSMB11AHE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- Power - Peak Pulse:
- 600W
- 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)
TPSMB11AHE3/5BT FAQ
1.How can I place an order for TPSMB11AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB11AHE3/5BT 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 TPSMB11AHE3/5BT reliable?
The price and inventory of TPSMB11AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB11AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB11AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB11AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB11AHE3/5BT?
TPSMB11AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB11AHE3/5BT 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 TPSMB11AHE3/5BT?
For technical support, including TPSMB11AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB11AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB11AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB11AHE3/5BT 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 TPSMB11AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB11AHE3/5BT?
All TPSMB11AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB11AHE3/5BT, 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 TPSMB11AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB11AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB11AHE3/5BT Tags
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