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Vishay General Semiconductor - Diodes Division TPSMB36HE3/52T
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- Part No.:
- TPSMB36HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB36HE3/52T.pdf
- Description:
- TVS DIODE 29.1VWM 52VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,369
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Product details
Overview
TPSMB36HE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at IT = 1 mA), 30.8 V stand-off voltage (VWM), 49.9 V maximum clamping voltage (VC) at 12 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB36HE3/52T datasheet, TPSMB36HE3/52T pinout, TPSMB36HE3/52T application, or TPSMB36HE3/52T equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C rating, and clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity across its 36 V nominal breakdown range. Its thermal design supports stable operation up to +185 °C junction temperature, meeting high-reliability automotive requirements per AEC-Q101 when ordered with HE3 suffix.
The device delivers 49.9 V clamping voltage at 12 A IPPM under 10/1000 µs waveform, with <1 ns response time and 1 µA max reverse leakage at VWM. It is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine) and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 34.2–37.8 V at 1 mA - defines precise voltage threshold where avalanche conduction begins |
| Stand-off Voltage VWM | 30.8 V - maximum continuous reverse voltage before significant leakage occurs |
| Clamping Voltage VC | 49.9 V at 12 A IPPM - limits transient voltage seen by protected IC/MOSFET during surge |
| Peak Pulse Power PPPM | 600 W (10/1000 µs) - sustains short-duration energy surges without failure |
| Junction Temperature Range | −65 °C to +185 °C - enables use in under-hood automotive and high-temp industrial environments |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked with band |
| AEC-Q101 Qualified | Yes (HE3 suffix) - validated for automotive-grade reliability and stress testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over lifetime and temperature, critical for long-term automotive reliability |
| 185 °C TJ max rating | Supports placement near heat sources (e.g., power converters) without derating in engine control units |
| 600 W peak pulse power (10/1000 µs) | Handles ISO 7637-2 Pulse 1/2a/5a transients in 12 V vehicle systems without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin |
| AEC-Q101 qualified (HE3) | Validated for temperature cycling, HTRB, UHAST, and ESD per automotive stress test standards |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive switching spikes in engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients above 30.8 V. Use Value: Limits voltage to ≤49.9 V during 12 A surge, preventing damage to downstream LDOs and microcontrollers rated for 40 V absolute max. |
Use Scenario: Safeguarding analog inputs of industrial pressure/temperature sensors exposed to field wiring transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS on signal line (e.g., 4–20 mA loop) referenced to local ground. Use Value: Maintains signal integrity below 1 µA leakage at 30.8 V, while clamping EFT bursts to <50 V to preserve ADC accuracy. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom power supplies subject to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected across output capacitor to absorb repetitive 10/1000 µs transients. Use Value: Withstands 600 W pulses at 0.01 % duty cycle, enabling robust front-end protection without thermal runaway. |
Use Scenario: Output rail protection in USB-C PD adapters to prevent overvoltage damage during fault conditions. IC Role / Device Role / Timing Role: Clamping device placed between +20 V output and GND, activated only during abnormal overvoltage events. Use Value: 30.8 V VWM ensures no conduction during normal operation; 49.9 V VC safeguards connected devices compliant with USB PD 3.1 VMAX = 50 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | 400 W PPPM (vs. 600 W); SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when space-constrained and automotive qualification is unnecessary |
| SMCJ36A | 1500 W PPPM; larger SMC (DO-214AB) package; same VBR/VC range | Higher surge capacity but requires more PCB area and thermal relief | Choose for industrial systems requiring >1 kA surge immunity with identical clamping behavior |
Compared with SMAJ36A and SMCJ36A, the TPSMB36HE3/52T offers balanced surge capability (600 W), AEC-Q101 qualification, and SMB footprint - making it optimal for automotive and space-aware industrial designs where reliability and moderate surge handling intersect.
Availability
TPSMB36HE3/52T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power systems, and consumer power adapter designs requiring stable component supply with guaranteed AEC-Q101 compliance and high-temperature operation.
Supply support for TPSMB36HE3/52T 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, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade validation.
The TPSMB36HE3/52T belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-temperature stability and repeatable clamping performance in harsh automotive and industrial power environments.
FAQ
What is the exact breakdown voltage range for TPSMB36HE3/52T?
The TPSMB36HE3/52T has a guaranteed breakdown voltage (VBR) range of 34.2 V to 37.8 V at test current IT = 1 mA, per Vishay's datasheet revision 23-Jan-2024. This range reflects manufacturing tolerance and ensures consistent clamping onset across production lots. The nominal value is 36.0 V, and the device maintains this specification across its full operating temperature range.
Is TPSMB36HE3/52T AEC-Q101 qualified?
Yes, TPSMB36HE3/52T is AEC-Q101 qualified. The "HE3" suffix explicitly denotes RoHS-compliant, AEC-Q101-qualified construction per Vishay's ordering nomenclature. This qualification covers temperature cycling, high-temperature reverse bias (HTRB), unbiased highly accelerated stress test (UHAST), and ESD testing - confirming suitability for automotive power and signal line protection.
What is the clamping voltage of TPSMB36HE3/52T at rated surge current?
The TPSMB36HE3/52T exhibits a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads and represents the upper limit of voltage imposed on protected circuitry during a defined transient event.
Does TPSMB36HE3/52T support bidirectional transient suppression?
No, TPSMB36HE3/52T is unidirectional only. Its electrical structure and marking (cathode band) are designed exclusively for clamping positive-going transients relative to ground. For bidirectional protection, Vishay offers the TPSMB36CA variant - a separate part number with symmetrical breakdown in both directions.
What is the maximum operating junction temperature of TPSMB36HE3/52T?
The TPSMB36HE3/52T is rated for a maximum junction temperature (TJ) of +185 °C, verified per Vishay's thermal characterization. This rating enables reliable operation in under-hood automotive locations and high-power industrial enclosures without derating, provided PCB thermal design meets the specified 0.2" × 0.2" copper pad requirement per terminal.
TPSMB36HE3/52T 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 11.5A
- 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)
TPSMB36HE3/52T FAQ
1.How can I place an order for TPSMB36HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB36HE3/52T 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 TPSMB36HE3/52T reliable?
The price and inventory of TPSMB36HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB36HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB36HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB36HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB36HE3/52T?
TPSMB36HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB36HE3/52T 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 TPSMB36HE3/52T?
For technical support, including TPSMB36HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB36HE3/52T requirements.
6.How does Aetrix verify that TPSMB36HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB36HE3/52T 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 TPSMB36HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB36HE3/52T?
All TPSMB36HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB36HE3/52T, 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 TPSMB36HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB36HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB36HE3/52T Tags
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