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Vishay General Semiconductor - Diodes Division TPSMB16HE3/52T
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- Part No.:
- TPSMB16HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB16HE3/52T.pdf
- Description:
- TVS DIODE 12.9VWM 23.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,638
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Product details
Overview
TPSMB16HE3/52T 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 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 power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB16HE3/52T datasheet, TPSMB16HE3/52T pinout, TPSMB16HE3/52T application, or TPSMB16HE3/52T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, low incremental surge resistance, and compatibility with high-reliability PCB layouts requiring MSL Level 1 reflow.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown above VWM. Its passivated anisotropic rectifier structure ensures stable VBR drift ≤ ±5 % over -65 °C to +185 °C and supports repetitive 0.01 % duty cycle transients.
Designed for direct placement across protected nodes, it delivers sub-nanosecond response time and clamps transient energy within 22.5 V at 26.7 A (10/1000 µs), limiting stress on downstream MOSFETs, ICs, or analog front-ends in 12 V automotive systems and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 15.2 / 16.0 / 16.8 V - defines precise avalanche initiation threshold under 1 mA test current, ensuring consistent clamping onset across production lots |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA, compatible with 12 V nominal rail systems |
| VC @ IPPM | 22.5 V - clamped voltage at 26.7 A peak pulse, limiting downstream component stress to safe levels during ISO 7637-2 pulse 1/2a events |
| PPPM | 600 W - peak pulse power handling capability with 10/1000 µs waveform, sufficient for automotive load-dump suppression per SAE J1113-11 |
| TJ max. | +185 °C - extended junction temperature rating enables use in under-hood automotive ECUs and high-ambient industrial enclosures without derating |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including HTOL, TC, HAST, and ESD testing, supporting PPAP-compliant production |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.205" × 0.130" footprint, optimized for automated placement and thermal dissipation on 5 mm × 5 mm copper pads |
Pinout & Package
TPSMB16HE3/52T uses the SMB (DO-214AA) package: a two-terminal, unidirectional surface-mount device with cathode indicated by a color band. The case is molded compound rated UL 94 V-0; terminals are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased avalanche terminal | Connected to higher-potential node (e.g., 12 V rail); conducts when transient exceeds VWM, shunting surge current to ground |
| Anode | Reference/ground return path | Typically tied to system ground or low-side reference; completes clamping loop with minimal inductance for effective transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier technology ensures <±5 % VBR stability over lifetime and temperature, critical for long-term automotive field reliability |
| MSL Level 1 rating | Compatible with standard 260 °C lead-free reflow profiles without moisture sensitivity concerns, eliminating bake requirements pre-assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 16750-2 pulse 5a), improving protection margin for sensitive gate drivers |
| High IFSM | 75 A non-repetitive forward surge rating supports robustness against repeated load-dump events without degradation |
| RoHS & halogen-free option | HE3 suffix denotes RoHS-compliant construction; HM3 variant adds halogen-free molding compound for strict environmental compliance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs in engine control, body electronics, and ADAS modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and input filter capacitor, activated within nanoseconds of overvoltage onset. Use Value: Limits peak voltage to 22.5 V at 26.7 A, protecting downstream DC-DC converters and microcontrollers rated for ≤28 V absolute maximum. |
Use Scenario: Guarding analog inputs of pressure, temperature, or position sensors exposed to ESD and inductive kickback in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-mode protector on sensor signal line (e.g., 0–5 V output), conducting only during >13.6 V transients. Use Value: Maintains <1 μA leakage at 13.6 V, preserving signal integrity and ADC accuracy while clamping 8 kV contact ESD per IEC 61000-4-2. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding AC/DC adapter outputs and PoE-powered equipment inputs against lightning-induced surges on telecom infrastructure hardware. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC output, coordinated with upstream MOVs and fuses for staged protection. Use Value: Delivers 600 W pulse handling with 22.5 V clamping, enabling compact design without oversized heatsinking in space-constrained telecom modules. |
Use Scenario: Protecting USB 2.0 data lines and VBUS pins in portable speakers, smart home hubs, and gaming peripherals against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on VBUS rail (5 V), placed upstream of USB switch or controller. Use Value: Achieves 22.5 V clamping at 26.7 A while maintaining <100 pF junction capacitance (typ.), preventing signal integrity loss on 480 Mbps USB 2.0 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 |
|---|---|---|---|
| SMBJ16A | Same SMB package, 16 V VBR, but rated for 600 W with 10/1000 µs waveform and not AEC-Q101 qualified | Lacks automotive qualification and 185 °C TJ rating; suitable for commercial/industrial use only | Select SMBJ16A for cost-sensitive non-automotive designs where AEC-Q101 and extended temperature are not required |
| TPSMB16AHM3/52T | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 vs HE3) | No functional difference; HM3 meets stricter environmental mandates (e.g., EU RoHS + halogen-free) | Choose TPSMB16AHM3/52T when halogen-free compliance is mandated by OEM or regional regulatory requirements |
Compared with SMBJ16A and TPSMB16AHM3/52T, the TPSMB16HE3/52T provides AEC-Q101 qualification and RoHS compliance in a halogen-containing package - making it optimal for automotive Tier 1 suppliers needing validated reliability without halogen-free cost premium.
Availability
TPSMB16HE3/52T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply, long-lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMB16HE3/52T 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 performance.
The TPSMB series was engineered specifically for demanding automotive and industrial environments, delivering stable clamping behavior up to +185 °C and meeting AEC-Q101 stress-test requirements for under-hood and factory-floor deployment.
FAQ
What is the maximum clamping voltage of the TPSMB16HE3/52T at its rated peak pulse current?
The TPSMB16HE3/52T has a maximum clamping voltage (VC) of 22.5 V when subjected to its rated peak pulse current of 26.7 A using the standard 10/1000 µs waveform. This value is measured under defined test conditions per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected circuitry. The TPSMB16HE3/52T maintains this clamping performance across its full operating temperature range.
Is the TPSMB16HE3/52T qualified for automotive applications?
Yes, the TPSMB16HE3/52T is AEC-Q101 qualified, having passed rigorous stress tests including high-temperature operating life, temperature cycling, and ESD immunity. Its 185 °C maximum junction temperature and robust construction make it suitable for under-hood automotive ECUs, body control modules, and ADAS power supplies. The TPSMB16HE3/52T carries the HE3 suffix denoting RoHS-compliant and AEC-Q101-qualified construction.
What is the standoff voltage (VWM) of the TPSMB16HE3/52T, and why does it matter?
The TPSMB16HE3/52T has a standoff voltage (VWM) of 13.6 V - the maximum DC or RMS voltage that can be continuously applied without exceeding 1 μA reverse leakage current. This parameter ensures reliable operation on 12 V nominal automotive and industrial rails, preventing false triggering while maintaining low leakage to preserve signal fidelity and power efficiency. The TPSMB16HE3/52T's VWM provides a 1.4 V margin below its 15.2 V minimum breakdown voltage.
Does the TPSMB16HE3/52T require special PCB layout considerations?
Yes - for optimal transient suppression, the TPSMB16HE3/52T should be mounted with minimal trace length between its cathode and the protected node, and its anode tied directly to a low-inductance ground plane. Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal to sustain 600 W pulse power. The TPSMB16HE3/52T's SMB package supports standard reflow profiles (MSL Level 1, 260 °C peak).
How does the TPSMB16HE3/52T differ from the TPSMB16AHM3/52T?
The TPSMB16HE3/52T and TPSMB16AHM3/52T share identical electrical specifications, AEC-Q101 qualification, and SMB packaging. Their sole difference is material composition: the HE3 suffix indicates RoHS-compliant construction with standard molding compound, while HM3 adds halogen-free formulation to meet stricter environmental standards such as JEDEC J-STD-203. The TPSMB16HE3/52T is selected when halogen-free content is not mandated.
TPSMB16HE3/52T 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):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 25.5A
- 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 (SMBJ)
TPSMB16HE3/52T FAQ
1.How can I place an order for TPSMB16HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB16HE3/52T 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 TPSMB16HE3/52T reliable?
The price and inventory of TPSMB16HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB16HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB16HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB16HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB16HE3/52T?
TPSMB16HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB16HE3/52T 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 TPSMB16HE3/52T?
For technical support, including TPSMB16HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB16HE3/52T requirements.
6.How does Aetrix verify that TPSMB16HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB16HE3/52T 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 TPSMB16HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB16HE3/52T?
All TPSMB16HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB16HE3/52T, 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 TPSMB16HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB16HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB16HE3/52T Tags
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