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Vishay General Semiconductor - Diodes Division TPSMB16AHE3/52T
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- Part No.:
- TPSMB16AHE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB16AHE3/52T.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMB16AHE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features a 16.0 V nominal breakdown voltage (VBR), 13.6 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 26.7 A peak pulse current (IPPM), and 22.5 V maximum clamping voltage (VC) - deployed in automotive ECUs, industrial sensor interfaces, and DC power input protection.
For engineers reviewing the TPSMB16AHE3/52T datasheet, TPSMB16AHE3/52T pinout, TPSMB16AHE3/52T application, or TPSMB16AHE3/52T equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification, 185 °C junction temperature rating, and verified clamping performance under repetitive 10/1000 µs surge conditions.
Technical Context
The TPSMB16AHE3/52T uses passivated anisotropic rectifier technology to achieve stable breakdown behavior across temperature and lifetime. Its TJ = 185 °C capability enables operation in under-hood automotive environments and high-power industrial enclosures without derating penalties up to 150 °C ambient.
It delivers low incremental surge resistance and fast response time (<1 ns), ensuring effective suppression of sub-microsecond transients before downstream ICs or MOSFETs experience overvoltage stress. The device meets MSL Level 1 per J-STD-020 and passes JESD 201 Class 2 whisker testing - confirming robustness for lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 / 16.0 / 16.8 V - ensures reliable triggering above 13.6 V system operating voltage while avoiding false trips during normal ripple or load dump overshoot |
| VWM | 13.6 V - defines maximum continuous reverse working voltage compatible with 12 V nominal automotive and industrial supply rails |
| VC @ IPPM | 22.5 V - clamps 10/1000 µs surges to safe levels for 24 V-rated logic, gate drivers, and analog front-ends |
| PPPM | 600 W - sustains standardized lightning/surge immunity tests (IEC 61000-4-5) without degradation when mounted on 5 mm × 5 mm copper pads |
| IFSM | 75 A - withstands 8.3 ms half-sine forward surge events such as battery reverse connection or jump-start transients |
| TJ max. | +185 °C - supports placement near heat-generating components in engine control modules and motor drives without thermal shutdown |
| Polarity | Unidirectional - provides asymmetric protection optimized for DC-biased power lines and signal paths with defined reference polarity |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode band marked on case. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). RoHS-compliant, halogen-free option available (HM3 suffix); HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified version.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for ECU, ADAS, and body electronics |
| 185 °C junction rating | Enables direct placement on high-temperature PCB zones (e.g., near DC-DC converters or motor drivers) without thermal derating below 150 °C ambient |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 3 (1 kV line-to-ground, 2 kV line-to-line) surge immunity requirements for industrial and automotive applications |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes voltage overshoot during clamping - critical for protecting 24 V-rated microcontrollers and CAN transceivers with tight absolute maximum ratings |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard Pb-free reflow (peak 260 °C) without baking - simplifies SMT manufacturing and reduces process risk |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V power inputs in engine control units against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC regulators and LDOs. Use Value: Limits input rail to ≤22.5 V during 600 W surges, preventing regulator latch-up and preserving MCU brown-out detection integrity. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) and digital sensor lines (e.g., LIN, SENT) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface to shunt transients before reaching precision amplifier or microcontroller GPIO. Use Value: Clamps sub-100 ns ESD pulses to <25 V while adding <0.5 pF parasitic capacitance - maintaining signal fidelity and timing accuracy. |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered devices (e.g., IP cameras, access points) receiving 48 V DC over Ethernet cables exposed to induced surges. IC Role / Device Role / Timing Role: Secondary surge protector downstream of primary front-end TVS, handling residual energy not absorbed by upstream stages. Use Value: Provides coordinated clamping with VC = 22.5 V at IPPM, enabling compact two-stage architecture without overdesigning primary components. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Snubber-connected TVS across motor terminals or flyback diode replacement for faster transient response than standard rectifiers. Use Value: Reduces voltage overshoot to <25 V during 75 A inductive turn-off events - extending MOSFET lifetime and eliminating gate oxide stress failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Same VBR (16.0 V), but lower PPPM = 400 W; SMB package identical; no AEC-Q101 qualification | Rated for commercial/industrial use only; unsuitable for automotive under-hood deployment due to TJ max = 150 °C | Select SMAJ16A only for cost-sensitive non-automotive designs where 400 W surge margin suffices and AEC-Q101 is not mandated. |
| SMCJ16A | Higher PPPM = 1500 W; larger SMC (DO-214AB) package; same VBR and VC; AEC-Q101 qualified (HM3 variant) | Requires larger PCB footprint and higher mounting pad area (10 mm × 10 mm); better suited for high-energy surge zones like main power entry | Choose SMCJ16A when system-level surge testing exceeds IEC 61000-4-5 Level 4 or when protecting high-current bus lines with >100 A fault currents. |
Compared with SMAJ16A and SMCJ16A, the TPSMB16AHE3/52T uniquely balances AEC-Q101 compliance, 600 W surge capacity, and SMB footprint - making it optimal for space-constrained automotive modules requiring validated reliability without overengineering.
Availability
TPSMB16AHE3/52T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feeding systems requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for TPSMB16AHE3/52T 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability, high-temperature, and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) platform, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be eliminated through material science and process control.
FAQ
What is the AEC-Q101 qualification status of the TPSMB16AHE3/52T?
The TPSMB16AHE3/52T carries full AEC-Q101 qualification, confirmed in Vishay document 88406 (Revision 23-Jan-2024). This includes stress testing for temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - validating its suitability for automotive powertrain and chassis applications. The HE3 suffix explicitly denotes AEC-Q101 compliance, and the device operates reliably up to +185 °C junction temperature.
Does the TPSMB16AHE3/52T support bidirectional transient suppression?
No, the TPSMB16AHE3/52T is unidirectional only, as stated in the Vishay datasheet section "FEATURES". It protects against positive-going transients on a DC-biased line referenced to ground. For AC or bipolar signal lines, a separate bidirectional TVS (e.g., TPSMB16CA) or back-to-back configuration would be required - the TPSMB16AHE3/52T cannot clamp negative excursions beyond its forward voltage drop (~3.5 V).
What is the maximum clamping voltage of the TPSMB16AHE3/52T under surge conditions?
The TPSMB16AHE3/52T has a maximum clamping voltage (VC) of 22.5 V at its rated peak pulse current (IPPM = 26.7 A) using the 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay document 88406 and represents the upper bound of voltage seen by downstream circuitry during worst-case surge events - critical for ensuring compatibility with 24 V logic and analog ICs.
How does the TPSMB16AHE3/52T compare to standard SMAJ-series TVS diodes?
The TPSMB16AHE3/52T offers higher peak pulse power (600 W vs. 400 W for SMAJ16A), extended junction temperature rating (+185 °C vs. +150 °C), and mandatory AEC-Q101 qualification - whereas SMAJ16A is commercial-grade only. Both share the SMB package and similar VBR/VC values, but the TPSMB16AHE3/52T is engineered for automotive under-hood use where thermal and reliability margins are non-negotiable.
Is the TPSMB16AHE3/52T compatible with lead-free reflow soldering processes?
Yes, the TPSMB16AHE3/52T meets J-STD-020 MSL Level 1 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing - ensuring reliable solder joint formation and long-term interconnect integrity in modern SMT assembly lines.
TPSMB16AHE3/52T 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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 26.7A
- 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 (SMBJ)
TPSMB16AHE3/52T FAQ
1.How can I place an order for TPSMB16AHE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB16AHE3/52T 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 TPSMB16AHE3/52T reliable?
The price and inventory of TPSMB16AHE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB16AHE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB16AHE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB16AHE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB16AHE3/52T?
TPSMB16AHE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB16AHE3/52T 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 TPSMB16AHE3/52T?
For technical support, including TPSMB16AHE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB16AHE3/52T requirements.
6.How does Aetrix verify that TPSMB16AHE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB16AHE3/52T 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 TPSMB16AHE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB16AHE3/52T?
All TPSMB16AHE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB16AHE3/52T, 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 TPSMB16AHE3/52T part is unused and in its original packaging.
Return procedure for TPSMB16AHE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB16AHE3/52T Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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