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Vishay General Semiconductor - Diodes Division TPSMB11HE3/5BT
- Part No.:
- TPSMB11HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB11HE3/5BT.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,523
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Product details
Overview
TPSMB11HE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching surges and lightning-induced transients on power and signal lines. It features 11.0 V nominal breakdown voltage (VBR), 9.4 V maximum stand-off voltage (VWM), 38.5 V clamping voltage at 15.6 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - used in automotive sensor protection and industrial power supply input stages.
For engineers reviewing the TPSMB11HE3/5BT datasheet, TPSMB11HE3/5BT pinout, TPSMB11HE3/5BT application, or TPSMB11HE3/5BT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, SMB package thermal derating above 25 °C, and clamping performance under repetitive 0.01% duty cycle surges.
Technical Context
The TPSMB11HE3/5BT implements a passivated anisotropic rectifier structure optimized for high-temperature stability and low incremental surge resistance. Its junction design enables reliable operation at TJ = 185 °C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
It delivers precise clamping response with <1 ps intrinsic response time and maintains stable VBR across temperature via a +0.067 %/°C temperature coefficient. The device is rated for non-repetitive 75 A forward surge (8.3 ms half-sine) and supports automotive-grade reliability when ordered with HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 / 11.0 / 11.6 V - ensures consistent avalanche initiation within ±5.5% tolerance at 1 mA test current |
| VWM | 9.4 V - maximum continuous reverse voltage before leakage exceeds 2 μA, defining safe operating margin below breakdown |
| VC @ IPPM | 38.5 V - clamps 15.6 A transient to ≤38.5 V, limiting downstream IC stress during 10/1000 µs surge events |
| PPPM | 600 W - sustains 10/1000 µs waveform at 0.01% duty cycle without degradation, validated on 5.0 mm × 5.0 mm copper pads |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC-DC inductors) in engine control units |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in series with protected line |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.205" × 0.220" footprint and matte tin-plated leads |
Pinout & Package
SMB (DO-214AA) package: molded epoxy case meeting UL 94 V-0, cathode indicated by color band, terminals solderable per J-STD-002 and JESD 22-B102, qualified to JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE > VBR, requiring low-inductance ground path |
| Anode | Reference/ground return | Typically tied to system ground plane; must handle full IPPM without voltage rise exceeding VC specification |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| 185 °C junction rating | Enables direct placement on high-power PCB zones without thermal derating penalties in under-hood modules |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/5a transients in 12 V vehicle systems without failure |
| Low clamping ratio (VC/VBR ≈ 3.5) | Minimizes overvoltage exposure to downstream logic or analog circuitry during fast-rising ESD or load dump events |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking, reducing manufacturing complexity |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground, clamping transients within 1 ns to prevent latch-up or oxide damage in interface ICs. Use Value: Maintains signal integrity under ISO 16750-2 Class D (12 V system, 35 V/100 ms load dump) while surviving 1000+ surge cycles at TJ = 150 °C. | Use Scenario: Safeguarding AC-DC and DC-DC converter inputs in programmable logic controllers (PLCs) and motor drives exposed to inductive kickback and utility grid surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk input rail (e.g., 24 V or 48 V), coordinated with upstream fuses and downstream regulators. Use Value: Limits input rail overshoot to ≤38.5 V during 600 W/10/1000 µs surges, preventing regulator shutdown or capacitor overvoltage failure. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side transient suppression on USB-C PD and Qi wireless charging adapter outputs subject to cable disconnect spikes and ESD. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on regulated 5–20 V output rails, placed adjacent to connector pins. Use Value: Clamps 15.6 A surges to 38.5 V within nanoseconds, preserving USB PD controller communication and preventing false overvoltage faults. | Use Scenario: Front-end protection of Ethernet PHYs and DSL line drivers in network edge equipment subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Differential or common-mode TVS on twisted-pair interfaces, referenced to isolated ground planes. Use Value: Provides 600 W surge handling per line pair with <100 pF junction capacitance at 0 V, minimizing signal distortion on 10/100/1000BASE-T links. |
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 | Same SMB package, identical VBR (10.5–11.6 V), but rated for 600 W with 10/1000 µs waveform and not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial designs where extended temperature validation is not required | Select SMBJ11A for cost-sensitive non-automotive applications needing identical electrical specs without qualification overhead |
| TPSMB11AHM3/5BT | Identical electrical and thermal specs; HM3 suffix adds halogen-free construction and same AEC-Q101 qualification as HE3 | No functional difference; differs only in material compliance (halogen-free vs. RoHS-only) | Choose TPSMB11AHM3/5BT when halogen-free bill-of-materials is mandated by environmental policy or regional regulations |
Compared with SMBJ11A and TPSMB11AHM3/5BT, the TPSMB11HE3/5BT provides verified AEC-Q101 qualification and RoHS compliance in a single-source automotive-grade variant, enabling drop-in use in Tier 1 automotive designs without requalification, while maintaining identical clamping performance and thermal robustness.
Availability
TPSMB11HE3/5BT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power input stages, and telecom line card surge suppression requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMB11HE3/5BT 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® (Protection and Regulation) transient voltage suppressor family, engineered specifically for robust surge immunity in harsh environments including automotive under-hood, industrial automation, and infrastructure equipment.
FAQ
What is the exact breakdown voltage range for TPSMB11HE3/5BT at 1 mA test current?
The TPSMB11HE3/5BT has a guaranteed breakdown voltage range of 10.5 V (minimum) to 11.6 V (maximum) at 1 mA test current, with 11.0 V as the nominal value. This specification is measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 23-Jan-2024 (Document Number: 88406). The TPSMB11HE3/5BT maintains this tolerance across its qualified operating temperature range.
Is TPSMB11HE3/5BT AEC-Q101 qualified, and what does that qualification cover?
Yes, TPSMB11HE3/5BT is AEC-Q101 qualified - the HE3 suffix explicitly denotes qualification per the AEC-Q101 stress test standard for discrete semiconductors. This includes testing for high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and unbiased highly accelerated stress test (UHAST). The TPSMB11HE3/5BT passes all required tests at TJ = 185 °C, confirming suitability for automotive powertrain and body electronics.
What is the clamping voltage of TPSMB11HE3/5BT under a 10/1000 µs surge, and how is it measured?
The TPSMB11HE3/5BT clamps to a maximum of 38.5 V when subjected to its rated peak pulse current of 15.6 A using the standardized 10/1000 µs double-exponential waveform. This value is measured per JEDEC standards with the device mounted on 0.2" × 0.2" copper pads at each terminal, and represents the upper limit of voltage seen by downstream circuitry during surge events. The TPSMB11HE3/5BT achieves this with low incremental surge resistance, ensuring predictable protection behavior.
Can TPSMB11HE3/5BT be used in bidirectional configurations?
No, TPSMB11HE3/5BT is unidirectional only - it conducts surge current only when the cathode is more positive than the anode. Bidirectional protection requires either two TPSMB11HE3/5BT devices in series opposition or a dedicated bidirectional TVS such as SMBJ11CA. The TPSMB11HE3/5BT datasheet explicitly states "Available in unidirectional polarity only", and its internal structure lacks symmetrical avalanche capability.
What is the maximum printed circuit board pad size recommended for optimal thermal performance of TPSMB11HE3/5BT?
Vishay specifies that TPSMB11HE3/5BT's 600 W peak pulse power rating is validated using 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal. Deviating from this pad size reduces thermal dissipation capability and may cause premature failure under repeated surges. For designs requiring higher reliability, the TPSMB11HE3/5BT should be placed with minimum 5.0 mm × 5.0 mm thermal pads connected to internal ground planes via multiple vias - as defined in the manufacturer's mounting recommendations.
TPSMB11HE3/5BT 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):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 37A
- 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)
TPSMB11HE3/5BT FAQ
1.How can I place an order for TPSMB11HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB11HE3/5BT 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 TPSMB11HE3/5BT reliable?
The price and inventory of TPSMB11HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB11HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB11HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB11HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB11HE3/5BT?
TPSMB11HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB11HE3/5BT 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 TPSMB11HE3/5BT?
For technical support, including TPSMB11HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB11HE3/5BT requirements.
6.How does Aetrix verify that TPSMB11HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB11HE3/5BT 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 TPSMB11HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB11HE3/5BT?
All TPSMB11HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB11HE3/5BT, 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 TPSMB11HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB11HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB11HE3/5BT Tags
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