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Vishay General Semiconductor - Diodes Division TPSMB36AHM3_A/I
- Part No.:
- TPSMB36AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB36AHM3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,854
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Product details
Overview
TPSMB36AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SMB (DO-214AA) package, designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features 36 V breakdown voltage (VBR = 34.2–37.8 V at IT = 1 mA), 30.8 V stand-off voltage (VWM), 49.9 V clamping voltage (VC) at 12 A peak pulse current, 600 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPSMB36AHM3_A/I datasheet, TPSMB36AHM3_A/I pinout, TPSMB36AHM3_A/I application, or TPSMB36AHM3_A/I equivalent, this page delivers verified electrical parameters, thermal limits (TJ = –65 °C to +185 °C), packaging details (SMB, halogen-free, MSL Level 1), and real-world protection use cases across automotive ECUs, industrial sensor interfaces, and telecom power inputs.
Technical Context
This TVS diode operates as a unidirectional clamping device with junction passivated anisotropic rectifier technology, enabling stable performance under high-temperature stress (TJ up to 185 °C). Its low incremental surge resistance and fast response time ensure effective suppression of transient energy before downstream ICs or MOSFETs are damaged.
The device complies with ANSI/IEEE C62.35 surge standards and is rated for repetitive 10/1000 µs waveform pulses at 0.01 % duty cycle. It is not intended for bidirectional protection or AC line applications - polarity is fixed by cathode band marking, and forward conduction is limited to 3.5 V at 50 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 30.8 V - maximum continuous reverse operating voltage without leakage exceeding 1 µA |
| VC @ IPPM | 49.9 V at 12 A - clamped voltage during 600 W transient, limiting stress on protected circuitry |
| PPPM | 600 W (10/1000 µs) - peak surge power handling capacity under standardized waveform |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - cathode-marked device; blocks reverse voltage up to VWM, conducts only in forward direction during overvoltage |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD per AEC standard |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode indicated by molded band; terminals are matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping event | Connected to protected line (e.g., 24 V rail); conducts surge current toward ground when VAK exceeds VBR |
| Cathode | Current exit point during clamping event | Connected to system ground; establishes reference for unidirectional clamping action and defines polarity orientation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivated anisotropic rectifier | Enables stable VBR drift < ±0.09 %/°C and consistent clamping across temperature range |
| 185 °C junction rating | Supports placement near heat sources (e.g., power converters) without derating in automotive or industrial designs |
| 600 W peak pulse power (10/1000 µs) | Handles typical ISO 7637-2 Pulse 1/2/5a transients without failure in 12 V/24 V systems |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during surge, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply input of engine control unit (ECU) against load dump and inductive kickback per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC/DC converter input. Use Value: Limits transient voltage to ≤49.9 V, preventing overvoltage shutdown or damage to upstream regulator and microcontroller. | Use Scenario: Safeguarding analog output (4–20 mA) line of pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on sensor output trace before isolation amplifier input. Use Value: Clamps ESD and cable discharge events to <50 V, preserving signal integrity and avoiding ADC saturation or op-amp latch-up. |
| Telecom Power Input Protection | Consumer Device USB Power Path Protection |
Use Scenario: Guarding primary-side input of PoE-powered switch port against lightning-induced surges on Ethernet cabling. IC Role / Device Role / Timing Role: First-stage clamping element on DC input derived from PoE midspan injector. Use Value: Absorbs 600 W surge energy within 1000 µs, maintaining downstream DC-DC controller functionality and meeting IEC 61000-4-5 Level 3 requirements. | Use Scenario: Protecting VBUS line of USB-C port in smart home hub against hot-plug transients and external ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between USB connector and USB PD controller's VBUS sense path. Use Value: Limits VBUS overshoot to 49.9 V during 8 kV contact ESD, ensuring PD negotiation remains active and preventing port disablement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3_A/I | Same SMB package, identical VBR (34.2–37.8 V), but lower PPPM = 600 W (same rating), non-AEC-Q101 qualified | Not approved for automotive under-hood use; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select if cost-sensitive and automotive qualification is unnecessary; verify thermal margin without AEC-Q101 validation data |
| TPSMB36AHM3_A/H | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (7" vs. 13" reel, 750 vs. 3200 pcs) | No functional difference; choice depends solely on production volume and SMT line feeder compatibility | Select for smaller batch builds or prototyping where 7" reels align with existing pick-and-place setup |
Compared with TPSMB36AHM3_A/I, SMBJ36AHE3_A/I offers equivalent clamping performance but lacks automotive qualification, while TPSMB36AHM3_A/H provides identical protection capability in a different reel format - both serve as viable alternatives depending on compliance and logistics requirements.
Availability
TPSMB36AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interface protection, and telecom PoE power rail hardening requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMB36AHM3_A/I 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 components.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable surge protection in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of TPSMB36AHM3_A/I at its rated peak pulse current?
The TPSMB36AHM3_A/I has a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value ensures protected circuits remain below critical overvoltage thresholds during transient events. The clamping behavior is repeatable and validated per ANSI/IEEE C62.35, and the TPSMB36AHM3_A/I maintains this performance across its full operating temperature range.
Is TPSMB36AHM3_A/I suitable for automotive applications?
Yes, TPSMB36AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain-related automotive applications. Its halogen-free, RoHS-compliant construction and MSL Level 1 rating further support automated manufacturing in automotive supply chains. The TPSMB36AHM3_A/I meets requirements for ISO 7637-2 transient immunity in 12 V and 24 V systems when properly mounted on adequate copper area.
What does the "HM3" suffix indicate in TPSMB36AHM3_A/I?
The "HM3" suffix in TPSMB36AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from "HE3" (RoHS-compliant and AEC-Q101 qualified but not halogen-free) and standard non-qualified versions. The "A/I" portion specifies 13-inch tape-and-reel packaging with 3200 units per reel. All TPSMB36AHM3_A/I units undergo whisker testing per JESD 201 Class 2.
How does TPSMB36AHM3_A/I compare to bidirectional TVS diodes?
TPSMB36AHM3_A/I is unidirectional only, meaning it protects against positive transients on a referenced line (e.g., 24 V rail to ground) but does not suppress negative-going surges. Bidirectional variants (e.g., TPSMB36CA) would be required for AC-coupled or floating-line protection. The TPSMB36AHM3_A/I's unidirectional design yields lower leakage at VWM (1 µA max) and tighter VBR tolerance versus bidirectional equivalents, optimizing DC rail protection efficiency.
What PCB layout considerations apply to TPSMB36AHM3_A/I?
For optimal surge handling, TPSMB36AHM3_A/I must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal, per Vishay's derating curves. Short, low-inductance traces to ground and protected node are essential - long traces degrade clamping response. Thermal relief should be minimized to maintain heat dissipation during repetitive surges. The TPSMB36AHM3_A/I's SMB footprint requires strict adherence to the DO-214AA pad layout shown in Vishay document 88406 to ensure solder joint reliability and MSL Level 1 compliance.
TPSMB36AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB36AHM3_A/I FAQ
1.How can I place an order for TPSMB36AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB36AHM3_A/I 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 TPSMB36AHM3_A/I reliable?
The price and inventory of TPSMB36AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB36AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB36AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB36AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB36AHM3_A/I?
TPSMB36AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB36AHM3_A/I 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 TPSMB36AHM3_A/I?
For technical support, including TPSMB36AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB36AHM3_A/I requirements.
6.How does Aetrix verify that TPSMB36AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB36AHM3_A/I 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 TPSMB36AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB36AHM3_A/I?
All TPSMB36AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB36AHM3_A/I, 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 TPSMB36AHM3_A/I part is unused and in its original packaging.
Return procedure for TPSMB36AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB36AHM3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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