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Vishay General Semiconductor - Diodes Division TPSMA36AHE3/61T
- Part No.:
- TPSMA36AHE3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA36AHE3/61T.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,441
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Product details
Overview
TPSMA36AHE3/61T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, rated for 36 V breakdown voltage (VBR = 34.2–37.8 V), 400 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - designed to protect automotive-grade power rails and signal lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the TPSMA36AHE3/61T datasheet, TPSMA36AHE3/61T pinout, TPSMA36AHE3/61T application, or TPSMA36AHE3/61T equivalent, key selection criteria include clamping voltage (VC = 49.9 V at IPPM), unidirectional polarity, AEC-Q101 qualification, and thermal stability up to TJ = 185 °C in high-reliability embedded systems.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, leveraging passivated anisotropic rectifier technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its unidirectional configuration enables protection of DC-biased lines without forward conduction during normal operation.
The device is characterized by a temperature coefficient of VBR = +0.090 %/°C and maintains stable clamping performance across -65 °C to +185 °C operating range. It meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V - defines precise voltage threshold at which avalanche conduction begins under 1 mA test current |
| VWM | 30.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA at 25 °C |
| VC @ IPPM | 49.9 V - clamping voltage at 8.0 A peak pulse current; determines worst-case overvoltage seen by protected circuit |
| PPPM | 400 W - peak pulse power handling with 10/1000 µs waveform; defines surge energy absorption capability |
| TJ max. | +185 °C - enables reliable operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects only against positive-going transients on cathode-biased lines |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and matte tin-plated leads |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102; cathode indicated by color band.
| 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 connected to system ground or lowest potential reference plane for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies |
| Junction temperature rating: 185 °C | Supports placement near heat sources (e.g., power MOSFETs, DC/DC converters) without derating |
| 400 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge events (4 kV line-to-ground) with margin |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs such as microcontrollers and CAN transceivers |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS diode placed between power rail and chassis ground to clamp surges above 36 V. Use Value: Limits peak voltage to ≤49.9 V during 8 A surge, preventing damage to 36 V-rated LDOs and MCU power inputs. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules. IC Role / Device Role / Timing Role: Unidirectional TVS on signal line referenced to local ground, suppressing ESD and cable discharge events. Use Value: Clamps transients within <1 ns while maintaining <1 μA leakage at 30.8 V, preserving signal integrity and ADC accuracy. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Front-end protection of PoE-powered Ethernet switches against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each conductor relative to ground, configured for differential and common-mode suppression. Use Value: Withstands repetitive 400 W pulses without degradation, supporting GR-1089-CORE compliance for outdoor telecom equipment. | Use Scenario: Input-stage overvoltage protection in USB-C PD adapters with wide-input-range AC/DC controllers. IC Role / Device Role / Timing Role: Primary-side TVS on bulk capacitor input to absorb MOV failure energy and suppress line surges. Use Value: 185 °C TJ rating ensures reliability under sustained high-temperature operation inside sealed adapter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Same VBR range (34.2–37.8 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (13.3 A) | Larger footprint (0.236" × 0.157") and 50 % higher surge capacity; less space-constrained layouts | Select SMBJ36A when board area allows and higher surge margin is required; not drop-in due to different pad layout |
| SMCJ36A | Same VBR, but SMC package (DO-214AB); 1500 W PPPM, IPPM = 43.3 A | Substantially larger footprint (0.276" × 0.213"); used in primary-side AC/DC or motor drive protection | Choose SMCJ36A for high-energy industrial mains protection where PCB real estate and thermal mass permit |
Compared with SMBJ36A and SMCJ36A, the TPSMA36AHE3/61T offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it preferred for space-limited automotive and portable industrial modules where thermal and reliability constraints dominate.
Availability
TPSMA36AHE3/61T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom line cards, and consumer power adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMA36AHE3/61T 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-qualified components.
The TPSMA36AHE3/61T belongs to Vishay's PAR® (Protection Against Transients) family of transient voltage suppressors - engineered specifically for robust, repeatable clamping in harsh environments including automotive under-hood, industrial control cabinets, and outdoor telecom infrastructure.
FAQ
What is the clamping voltage of the TPSMA36AHE3/61T at its rated peak pulse current?
The TPSMA36AHE3/61T has a maximum clamping voltage (VC) of 49.9 V when subjected to its rated peak pulse current (IPPM) of 8.0 A using a 10/1000 µs waveform. This value is measured per standard test conditions defined in the datasheet and reflects the worst-case overvoltage imposed on the protected circuit during surge events. The TPSMA36AHE3/61T maintains this clamping performance across its full operating temperature range.
Is the TPSMA36AHE3/61T qualified for automotive applications?
Yes, the TPSMA36AHE3/61T is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified construction. It supports automotive use cases including engine control units, body electronics, and ADAS power supplies, with validated reliability under temperature cycling, humidity, and mechanical shock per AEC-Q101 requirements.
What is the maximum operating junction temperature for the TPSMA36AHE3/61T?
The TPSMA36AHE3/61T is rated for a maximum junction temperature (TJ) of +185 °C, enabling deployment in high-temperature zones such as near power converters or under-hood automotive locations. This rating is supported by Vishay's junction passivation and thermal design, and the device remains fully functional across the full -65 °C to +185 °C operating range without derating until exceeding ambient thermal limits.
Does the TPSMA36AHE3/61T have bidirectional or unidirectional polarity?
The TPSMA36AHE3/61T is unidirectional only, as explicitly stated in the Vishay datasheet. Its cathode is marked with a band, and it conducts surge current only when the anode is at a lower potential than the cathode - making it suitable for protecting DC-biased lines like 12 V or 24 V power rails. Bidirectional variants are not offered in the TPSMA36AHE3/61T part number.
What package type does the TPSMA36AHE3/61T use, and what are its key mounting features?
The TPSMA36AHE3/61T uses the SMA (DO-214AC) surface-mount package, with dimensions of 0.208" × 0.157" and matte tin-plated leads. It meets MSL Level 1 per J-STD-020 and is qualified for lead-free reflow up to 260 °C peak. The package includes UL 94 V-0 compliant molding compound and is designed for standard PCB pad layouts specified in the Vishay outline drawing.
TPSMA36AHE3/61T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 8A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA36AHE3/61T FAQ
1.How can I place an order for TPSMA36AHE3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA36AHE3/61T 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 TPSMA36AHE3/61T reliable?
The price and inventory of TPSMA36AHE3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA36AHE3/61T is usually 5 days.
3.What payment methods are accepted for TPSMA36AHE3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA36AHE3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA36AHE3/61T?
TPSMA36AHE3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA36AHE3/61T 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 TPSMA36AHE3/61T?
For technical support, including TPSMA36AHE3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA36AHE3/61T requirements.
6.How does Aetrix verify that TPSMA36AHE3/61T is sourced from the original manufacturer or authorized distributors?
All TPSMA36AHE3/61T 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 TPSMA36AHE3/61T meets industry standards.
7.What is the process for return or replacement of TPSMA36AHE3/61T?
All TPSMA36AHE3/61T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA36AHE3/61T, 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 TPSMA36AHE3/61T part is unused and in its original packaging.
Return procedure for TPSMA36AHE3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA36AHE3/61T Tags
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