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Vishay General Semiconductor - Diodes Division TPSMB15HE3/52T
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- Part No.:
- TPSMB15HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB15HE3/52T.pdf
- Description:
- TVS DIODE 12.1VWM 22VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,809
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Product details
Overview
TPSMB15HE3/52T 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 and signal lines. It features 15 V breakdown voltage (VBR = 14.3–15.8 V at 1 mA), 12.8 V stand-off voltage (VWM), 21.2 V clamping voltage (VC) at 28.3 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB15HE3/52T datasheet, TPSMB15HE3/52T pinout, TPSMB15HE3/52T application, or TPSMB15HE3/52T equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, SMB package mechanical data, and direct alternative part comparisons - all grounded in Vishay's official 88406 specification document dated 23-Jan-2024.
Technical Context
The TPSMB15HE3/52T employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable clamping performance under high-temperature stress (TJ = 185 °C). Its unidirectional polarity and low incremental surge resistance ensure rapid response (<1 ns) and minimal voltage overshoot during transient events.
Rated for 600 W peak pulse power per 10/1000 µs waveform at 0.01 % duty cycle, it supports repetitive surge handling when mounted on 5.0 mm × 5.0 mm copper pads. The device meets MSL Level 1 per J-STD-020 and passes JESD 201 Class 2 whisker testing - confirming suitability for lead-free reflow assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins, critical for matching system overvoltage tolerance margins. |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets safe DC bias limit for protected line. |
| VC @ IPPM | 21.2 V at 28.3 A - clamped voltage during worst-case surge; determines maximum stress imposed on downstream ICs like MCUs or CAN transceivers. |
| PPPM | 600 W (10/1000 µs) - peak transient energy absorption capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a in automotive environments. |
| TJ max. | +185 °C - extended junction temperature rating allows operation in engine bay or industrial motor drive enclosures without thermal derating penalties. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.220" body length and cathode band marking; compatible with automated pick-and-place and reflow. |
| AEC-Q101 | Qualified - certified for automotive electronic systems per stress test requirements including HTGB, HTRB, and TCT; suffix HE3 confirms qualification. |
Pinout & Package
TPSMB15HE3/52T is housed in an SMB (DO-214AA) plastic package with two terminals: cathode (marked by color band) and anode. The case conforms to UL 94 V-0 flammability rating, features matte tin-plated leads solderable per J-STD-002, and supports reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage event - polarity must match system reference. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes surge current loop - layout must minimize inductance to preserve clamping speed. |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables reliable operation in under-hood automotive modules and industrial power converters without thermal shutdown or parameter drift. |
| 600 W peak pulse power | Withstands multiple ISO 16750-2 load dump surges or IEC 61000-4-5 combination wave transients without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage margin required for downstream components - reduces need for oversized voltage ratings on protected ICs. |
| AEC-Q101 qualified (HE3 suffix) | Validates robustness across temperature cycling, humidity, and mechanical shock - eliminates need for additional qualification testing in Tier 1 supply chains. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; no baking required - simplifies SMT line logistics and reduces manufacturing cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs or microcontrollers. Use Value: Withstands 600 W surges while limiting clamped voltage to 21.2 V - preserving integrity of 24 V-rated power management ICs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal traces to prevent latch-up in ADC front-ends. Use Value: Sub-1 ns response time and 21.2 V clamping ensure signal integrity remains intact during ±8 kV contact ESD (IEC 61000-4-2). |
| Telecom Line Surge Suppression | Consumer Power Adapter Input Protection |
|
Use Scenario: Guarding PoE-powered Ethernet ports against induced surges from nearby AC wiring or lightning coupling. IC Role / Device Role / Timing Role: Primary-level TVS on DC input side of isolated DC/DC converter, coordinated with secondary-side protection. Use Value: 185 °C rating ensures stability during sustained PoE heating; 600 W rating covers combined Mode 1+2 surge events per IEEE 802.3bt. |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifiers and controllers from mains-borne transients (IEC 61000-4-5). IC Role / Device Role / Timing Role: Secondary-side TVS on DC output rail to absorb reflected surge energy and prevent damage to USB-C PD controllers. Use Value: RoHS-compliant and halogen-free (HE3 variant) meets global regulatory requirements for consumer electronics without sacrificing surge margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same VBR range (14.3–15.8 V), but lower PPPM = 400 W; SMB package identical; not AEC-Q101 qualified. | Limited to non-automotive industrial or consumer use where ISO 7637-2 compliance is not required. | Select SMAJ15A only if cost sensitivity outweighs automotive qualification and 600 W surge headroom. |
| TPSMB15AHM3/52T | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 vs HE3). | Required for strict halogen-free compliance (e.g., EU medical devices); otherwise functionally interchangeable. | Choose TPSMB15AHM3/52T when material compliance mandates exceed RoHS-only requirements. |
Compared with SMAJ15A and TPSMB15AHM3/52T, the TPSMB15HE3/52T uniquely combines AEC-Q101 qualification, 600 W surge rating, and standard RoHS compliance - making it the default choice for automotive and high-reliability industrial designs where both performance and certification are mandatory.
Availability
TPSMB15HE3/52T is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom power rail surge suppression requiring stable component supply across multi-year production cycles.
Supply support for TPSMB15HE3/52T 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, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive-grade qualification.
The TPSMB series is engineered specifically for high-temperature transient suppression in harsh environments - targeting automotive power distribution, industrial control I/O, and infrastructure equipment where failure modes demand proven surge resilience.
FAQ
What is the clamping voltage of the TPSMB15HE3/52T at its rated peak pulse current?
The TPSMB15HE3/52T has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current (IPPM) of 28.3 A using a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings. The TPSMB15HE3/52T maintains this clamping performance across its full operating temperature range.
Is the TPSMB15HE3/52T qualified for automotive applications?
Yes, the TPSMB15HE3/52T is AEC-Q101 qualified, as confirmed by Vishay's official documentation (Document Number: 88406, Revision: 23-Jan-2024). The "HE3" suffix explicitly denotes AEC-Q101 qualification, covering stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). This makes the TPSMB15HE3/52T suitable for use in engine control units, body electronics, and ADAS modules where automotive-grade reliability is mandated.
What is the standoff voltage (VWM) of the TPSMB15HE3/52T, and why does it matter?
The TPSMB15HE3/52T has a maximum working peak reverse voltage (VWM) of 12.8 V at 25 °C. This parameter represents the highest continuous DC or RMS voltage the device can block without exceeding 1 µA leakage current - essential for ensuring no false triggering during normal operation. In a 12 V automotive system, selecting a VWM just above nominal rail voltage (e.g., 12.8 V) prevents unnecessary conduction while retaining sufficient margin for ripple and transients below the breakdown threshold. The TPSMB15HE3/52T's VWM is therefore optimized for standard 12 V battery-fed circuits.
Does the TPSMB15HE3/52T meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, the TPSMB15HE3/52T meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This means the device has unlimited floor life and requires no baking prior to assembly - simplifying manufacturing logistics and reducing risk of popcorning or delamination during reflow. The MSL Level 1 rating is validated through Vishay's qualification process and applies to the entire TPSMB family, including the TPSMB15HE3/52T, supporting high-yield, high-volume SMT production.
How does the TPSMB15HE3/52T differ from the TPSMB15AHM3/52T variant?
The TPSMB15HE3/52T and TPSMB15AHM3/52T share identical electrical specifications, AEC-Q101 qualification, and SMB (DO-214AA) package dimensions. Their sole difference lies in material composition: the HM3 suffix indicates halogen-free molding compound, whereas HE3 is RoHS-compliant but not halogen-free. Both are fully interchangeable electrically and mechanically; selection depends solely on material compliance requirements - TPSMB15HE3/52T satisfies standard RoHS, while TPSMB15AHM3/52T fulfills stricter halogen-free mandates such as those in medical or aerospace applications.
TPSMB15HE3/52T 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 27.3A
- 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)
TPSMB15HE3/52T FAQ
1.How can I place an order for TPSMB15HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB15HE3/52T 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 TPSMB15HE3/52T reliable?
The price and inventory of TPSMB15HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB15HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB15HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB15HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB15HE3/52T?
TPSMB15HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB15HE3/52T 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 TPSMB15HE3/52T?
For technical support, including TPSMB15HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB15HE3/52T requirements.
6.How does Aetrix verify that TPSMB15HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB15HE3/52T 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 TPSMB15HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB15HE3/52T?
All TPSMB15HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB15HE3/52T, 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 TPSMB15HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB15HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB15HE3/52T Tags
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