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Vishay General Semiconductor - Diodes Division TPSMB11HE3/52T
- Part No.:
- TPSMB11HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB11HE3/52T.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,901
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Product details
Overview
TPSMB11HE3/52T 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 rails and signal lines. It features 11.0 V nominal breakdown voltage (VBR), 9.4 V maximum standoff voltage (VWM), 38.5 V clamping voltage at 15.6 A peak pulse current (IPPM), 600 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - enabling robust protection in automotive power electronics and industrial sensor interfaces.
For engineers reviewing the TPSMB11HE3/52T datasheet, TPSMB11HE3/52T pinout, TPSMB11HE3/52T application, or TPSMB11HE3/52T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 75 A IFSM surge rating, and low 0.067 %/°C VBR temperature coefficient - critical for thermal-stable overvoltage clamping in high-reliability embedded systems.
Technical Context
The TPSMB11HE3/52T operates as a silicon avalanche diode with passivated anisotropic rectifier technology, delivering fast response time (<1 ns) and low incremental surge resistance to limit transient energy before downstream ICs or MOSFETs are damaged. Its 10/1000 µs waveform-rated 600 W PPPM and 15.6 A IPPM support repetitive surge handling under 0.01 % duty cycle.
Designed for high-temperature environments, it sustains operation from –65 °C to +185 °C junction temperature and meets JESD201 Class 2 whisker resistance. The HE3 suffix confirms RoHS compliance, AEC-Q101 qualification, and matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 / 11.0 / 11.6 V - ensures reliable avalanche conduction onset above 9.4 V system operating voltage |
| VWM | 9.4 V - maximum continuous reverse voltage without significant leakage, compatible with 9 V rail protection |
| VC @ IPPM | 38.5 V - clamped voltage during 15.6 A transient, limiting stress on 36 V-rated downstream components |
| IPPM | 15.6 A - peak surge current capability under 10/1000 µs waveform, sufficient for ISO 7637-2 Pulse 1 & 2a |
| PPPM | 600 W - peak pulse power dissipation enables single-device suppression of moderate-energy transients |
| TJ max | +185 °C - supports under-hood automotive use and high-ambient industrial control cabinets |
| αT | 0.067 %/°C - low temperature coefficient minimizes VBR drift across thermal cycling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode indicated by molded band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); 0.220" × 0.155" mounting pad layout recommended.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| MSL Level 1 (260 °C peak) | Enables standard reflow assembly without pre-baking; no moisture sensitivity concerns |
| 185 °C TJ max | Supports operation in engine bay, motor drives, and industrial enclosures without derating |
| Low IR @ VWM (2 μA) | Minimizes standby power loss and avoids false triggering in low-current sensor circuits |
| 0.067 %/°C αT | Ensures predictable clamping threshold across –40 °C to +125 °C ambient conditions |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 11 V. Use Value: Limits peak voltage to ≤38.5 V during 15.6 A transients, preserving 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA loops) of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and ground to absorb sub-100 ns ESD pulses. Use Value: Sub-μA leakage at 9.4 V ensures minimal impact on loop accuracy; fast response prevents sensor ADC saturation. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters supplying USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–20 V output rails to absorb flyback transformer ringing and hot-swap spikes. Use Value: 9.4 V VWM allows stable regulation up to 9 V; 38.5 V VC protects downstream USB-PD controllers rated to 40 V. |
Use Scenario: Surge suppression on -48 V telecom power feeds exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to chassis ground to clamp negative-going surges on supply lines. Use Value: 185 °C rating ensures reliability in sealed telecom cabinets; AEC-Q101 qualification adds confidence in long-life deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Same SMB package, 11 V VBR, but lower 100 W PPPM and 12.3 A IPPM; not AEC-Q101 qualified | Limited to consumer-grade or non-automotive industrial use where 600 W surge immunity is not required | Select SMBJ11A only if cost sensitivity outweighs automotive qualification and higher surge margin needs |
| TPSMB11AHM3/52T | Identical electrical specs and AEC-Q101 qualification; HM3 suffix adds halogen-free molding compound | Required for RoHS-compliant, halogen-free BOMs in EU automotive programs (e.g., VW TL 813) | Choose TPSMB11AHM3/52T when halogen-free compliance is mandated; otherwise TPSMB11HE3/52T suffices |
Compared with SMBJ11A, TPSMB11HE3/52T delivers 6× higher surge power handling and automotive qualification; versus TPSMB11AHM3/52T, it offers identical protection performance with standard RoHS compliance - making it optimal for cost-sensitive AEC-Q101 designs where halogen-free is not mandatory.
Availability
TPSMB11HE3/52T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for TPSMB11HE3/52T 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPSMB series is part of Vishay's PAR® (Protection Against Transients) platform, engineered specifically for high-temperature, high-surge environments where failure is not acceptable - such as engine control, ADAS power supplies, and factory automation I/O modules.
FAQ
What is the maximum clamping voltage of the TPSMB11HE3/52T under standard test conditions?
The TPSMB11HE3/52T has a maximum clamping voltage (VC) of 38.5 V when subjected to its rated peak pulse current of 15.6 A using a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees that downstream components exposed to the protected line will not experience voltages exceeding 38.5 V during defined surge events. The TPSMB11HE3/52T maintains this clamping performance across its full operating temperature range.
Is the TPSMB11HE3/52T qualified for automotive applications?
Yes, the TPSMB11HE3/52T is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature operating life, temperature cycling, and mechanical shock - all required for automotive powertrain and body electronics. The HE3 suffix explicitly denotes RoHS compliance and AEC-Q101 qualification. Engineers deploying the TPSMB11HE3/52T in automotive ECUs can rely on its validated reliability under real-world thermal and vibration conditions.
What does the "HE3" suffix mean in TPSMB11HE3/52T?
The "HE3" suffix in TPSMB11HE3/52T indicates RoHS-compliant construction, AEC-Q101 qualification, and matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards. It also confirms compliance with JESD201 Class 2 whisker resistance testing. The "52T" denotes tape-and-reel packaging in 7" reels (750 pcs per reel). This suffix distinguishes it from non-automotive variants like standard TPSMB11A and halogen-free HM3 versions.
Can the TPSMB11HE3/52T be used in bidirectional configurations?
No, the TPSMB11HE3/52T is unidirectional only, as confirmed in the Vishay datasheet. It conducts surge current from cathode to anode when reverse-biased beyond VBR, but offers no clamping in forward bias. For bidirectional protection (e.g., AC lines or data buses), a separate device such as a bidirectional TVS or back-to-back configuration is required. Using TPSMB11HE3/52T in forward-biased applications risks permanent damage due to excessive forward current.
What is the thermal derating behavior of the TPSMB11HE3/52T above 25 °C ambient?
The TPSMB11HE3/52T follows standard derating curves per Figure 2 in its datasheet: peak pulse power (PPPM) decreases linearly from 600 W at 25 °C to zero at 185 °C junction temperature. At 125 °C case temperature, PPPM is approximately 420 W. Derating is based on junction temperature, not ambient - so PCB copper area, airflow, and thermal interface must be considered. The TPSMB11HE3/52T's 185 °C TJmax enables higher sustained power handling than standard 150 °C TVS diodes.
TPSMB11HE3/52T 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)
TPSMB11HE3/52T FAQ
1.How can I place an order for TPSMB11HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB11HE3/52T 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 TPSMB11HE3/52T reliable?
The price and inventory of TPSMB11HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB11HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB11HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB11HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB11HE3/52T?
TPSMB11HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB11HE3/52T 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 TPSMB11HE3/52T?
For technical support, including TPSMB11HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB11HE3/52T requirements.
6.How does Aetrix verify that TPSMB11HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB11HE3/52T 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 TPSMB11HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB11HE3/52T?
All TPSMB11HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB11HE3/52T, 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 TPSMB11HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB11HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB11HE3/52T Tags
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