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Vishay General Semiconductor - Diodes Division TPSMB11AHE3_A/I
- Part No.:
- TPSMB11AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB11AHE3_A/I.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,651
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Product details
Overview
TPSMB11AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 11.0 V nominal breakdown voltage (VBR), 9.4 V maximum 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. It is used in automotive sensor protection, industrial I/O interfaces, and DC power rail surge suppression.
For engineers reviewing the TPSMB11AHE3_A/I datasheet, TPSMB11AHE3_A/I pinout, TPSMB11AHE3_A/I application, or TPSMB11AHE3_A/I 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
The TPSMB11AHE3_A/I functions as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its 10.5–11.6 V breakdown range (tested at 1 mA). Its low incremental surge resistance and fast response time enable effective suppression of transient energy before downstream ICs or MOSFETs are damaged.
It is rated for 600 W peak pulse power per 10/1000 µs waveform with 0.01 % duty cycle, supports 75 A non-repetitive forward surge current (8.3 ms half-sine), and maintains stable VBR across temperature via +0.067 %/°C tempco - critical for automotive under-hood reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 / 11.0 / 11.6 V at 1 mA - defines precise avalanche onset for predictable clamping threshold |
| VWM | 9.4 V - maximum continuous reverse operating voltage without leakage exceeding 2 µA |
| VC @ IPPM | 15.6 V at 38.5 A - clamping voltage during full-rated 600 W transient, limiting stress on protected circuitry |
| PPPM | 600 W (10/1000 µs) - peak surge power handling capability under standardized lightning/inductive test waveform |
| TJ max. | +185 °C - enables use in high-temperature automotive engine compartments and industrial motor drives |
| Polarity | Unidirectional - protects against positive transients only; cathode band denotes terminal polarity |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow), RoHS-compliant and halogen-free (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage event |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier technology | Enables stable VBR and low leakage (<2 µA at VWM) across -65 to +185 °C operating range |
| 600 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events in automotive and industrial systems |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| MSL Level 1, 260 °C peak reflow | Supports standard SMT assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Voltage clamping element placed between signal line and ground, activated within nanoseconds of overvoltage onset. Use Value: Prevents permanent damage to 3.3 V/5 V interface ICs by limiting transient voltage to ≤15.6 V while sustaining 38.5 A surge current. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-and-clamp protector on 24 V DC input channels, operating continuously at 9.4 V VWM with <2 µA leakage. Use Value: Enables reliable operation in harsh factory environments where repeated 600 W transients occur without derating or thermal shutdown. |
| DC Power Rail Surge Suppression | Consumer Device USB/Ethernet Port Protection |
Use Scenario: Clamping 12 V/24 V supply rails in embedded power supplies against switching noise and accidental reverse polarity events. IC Role / Device Role / Timing Role: Parallel-connected TVS diode providing low-impedance shunt path during overvoltage, complementing upstream fuses and filters. Use Value: Maintains rail integrity below 15.6 V during 10/1000 µs surges, preventing brownout resets or regulator latch-up in microcontroller-based systems. | Use Scenario: Secondary-level ESD and surge protection on USB 2.0 data lines and 10/100BASE-TX Ethernet PHY interfaces in smart home hubs. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary common-mode chokes, absorbing differential-mode transients. Use Value: Limits voltage excursion to 15.6 V at 38.5 A, meeting IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) without compromising signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A (ON Semiconductor) | Same SMB package, 11 V VBR, but rated for 600 W with 10/1000 µs waveform and 15.4 V VC; not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC11A (Littelfuse) | Same electrical specs (11 V VBR, 15.6 V VC), SMB package, AEC-Q101 qualified, but rated for 1500 W peak pulse power (10/1000 µs) | Higher power rating allows longer surge duration tolerance; larger thermal mass may affect layout density | Select when higher surge margin or extended pulse handling is needed beyond 600 W baseline |
Compared with SMBJ11A and 1.5SMC11A, the TPSMB11AHE3_A/I delivers identical clamping performance (15.6 V at 38.5 A) and AEC-Q101 qualification in a compact SMB footprint, making it optimal for space-constrained automotive modules where 600 W surge immunity suffices.
Availability
TPSMB11AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail surge suppression requiring stable component supply, AEC-Q101 compliance, and high-temperature operation up to +185 °C.
Supply support for TPSMB11AHE3_A/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, TVS devices, and optoelectronics with emphasis on reliability, high-temperature operation, and automotive qualification.
The TPSMB series belongs to Vishay's PAR® (Protected Avalanche Rectifier) transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable clamping in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance of the TPSMB11AHE3_A/I?
The TPSMB11AHE3_A/I has a specified breakdown voltage range of 10.5 V to 11.6 V at 1 mA test current, with a nominal value of 11.0 V. This ±5 % tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in automotive and industrial circuits where precise overvoltage thresholds are critical. The TPSMB11AHE3_A/I meets this specification under standard test conditions per ANSI/IEEE C62.35.
Is the TPSMB11AHE3_A/I suitable for automotive applications?
Yes, the TPSMB11AHE3_A/I is AEC-Q101 qualified and explicitly designed for automotive use, with a maximum junction temperature rating of +185 °C and validation for temperature cycling, high-temperature reverse bias, and ESD robustness. Its HE3 suffix confirms RoHS compliance and automotive qualification, making the TPSMB11AHE3_A/I appropriate for engine control units, body electronics, and ADAS sensor interfaces.
What is the clamping voltage of the TPSMB11AHE3_A/I at its rated peak pulse current?
The TPSMB11AHE3_A/I exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 38.5 A (10/1000 µs waveform). This low clamping ratio (VC/VBR ≈ 1.42) ensures minimal overvoltage stress on protected components such as microcontrollers, transceivers, and MOSFET gates during surge events.
Does the TPSMB11AHE3_A/I have unidirectional or bidirectional polarity?
TPSMB11AHE3_A/I is a unidirectional TVS diode, meaning it provides protection only against positive-going transients on the cathode side relative to the anode. Polarity is indicated by a color band at the cathode end, and the device must be oriented correctly in-circuit to ensure proper clamping function. Bidirectional variants are not offered in the TPSMB11AHE3_A/I part number.
What package type does the TPSMB11AHE3_A/I use, and is it compatible with standard SMT processes?
The TPSMB11AHE3_A/I uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads, rated MSL Level 1 per J-STD-020 and compatible with standard 260 °C peak reflow profiles. Its dimensions (0.205" × 0.130") and pad layout are industry-standard, ensuring drop-in compatibility with existing SMB footprints and automated placement equipment.
TPSMB11AHE3_A/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):
- 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_A/I FAQ
1.How can I place an order for TPSMB11AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB11AHE3_A/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 TPSMB11AHE3_A/I reliable?
The price and inventory of TPSMB11AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB11AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB11AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB11AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB11AHE3_A/I?
TPSMB11AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB11AHE3_A/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 TPSMB11AHE3_A/I?
For technical support, including TPSMB11AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB11AHE3_A/I requirements.
6.How does Aetrix verify that TPSMB11AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB11AHE3_A/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 TPSMB11AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB11AHE3_A/I?
All TPSMB11AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB11AHE3_A/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 TPSMB11AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMB11AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB11AHE3_A/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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