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Vishay General Semiconductor - Diodes Division TPSMA36AHE3_A/H
- Part No.:
- TPSMA36AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA36AHE3_A/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,104
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Product details
Overview
TPSMA36AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 36.0 V nominal breakdown voltage (VBR), 49.9 V maximum clamping voltage (VC) at 8.0 A peak pulse current, 400 W peak pulse power (10/1000 µs), 30.8 V stand-off voltage (VWM), and operates up to +185 °C junction temperature - used in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the TPSMA36AHE3_A/H datasheet, TPSMA36AHE3_A/H pinout, TPSMA36AHE3_A/H application, or TPSMA36AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, TJ = 185 °C capability, 400 W surge rating, and SMA package compatibility with high-reliability PCB layouts requiring MSL Level 1 handling.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge conditions. Its 10/1000 µs waveform response supports standardized lightning and inductive-switching transient immunity testing per IEC 61000-4-5 and ANSI/IEEE C62.35.
The device exhibits low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and fast-rising transients before downstream ICs or MOSFETs are damaged. Its 0.090 %/°C temperature coefficient of VBR ensures predictable voltage shift across the full -65 °C to +185 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V - defines precise clamping onset threshold at 1 mA test current |
| VWM | 30.8 V - maximum continuous reverse working voltage without leakage degradation |
| VC @ IPPM | 49.9 V at 8.0 A - peak clamped voltage during 400 W transient, limiting stress on protected circuitry |
| PPPM | 400 W (10/1000 µs) - standardized surge energy handling capacity for automotive and industrial compliance |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation in PCB layout |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow without moisture sensitivity concerns |
Pinout & Package
TPSMA36AHE3_A/H is housed in an SMA (DO-214AC) surface-mount package with molded epoxy body, matte tin-plated leads, and cathode band marking. The package measures 4.93 mm × 3.99 mm × 2.29 mm (L × W × H) and mounts on 5.0 mm × 5.0 mm copper pads per terminal for optimal thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and bias stress |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, enhancing protection margin for sensitive ICs |
| 400 W peak pulse power | Meets ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3/4 surge immunity requirements |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power converters) without derating penalties |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Suppresses load-dump and alternator ripple transients on 12 V/24 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power input and ground to clamp surges before DC-DC regulators and microcontrollers. Use Value: Withstands 400 W pulses and operates up to +185 °C, enabling direct integration into under-hood modules without external heatsinking. | Use Scenario: Protects analog front-end inputs of pressure, temperature, and position sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 30.8 V) placed across sensor supply and signal lines to absorb ESD and switching noise. Use Value: Low leakage (<1 µA at VWM) prevents signal offset drift; fast response preserves sensor accuracy during transient events. |
| Telecom Line Interface | Computer Peripheral Port Protection |
Use Scenario: Shields RS-485 transceivers and PoE-powered Ethernet ports from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on data line pairs, coordinated with GDT or MOV secondary protection stages. Use Value: 49.9 V clamping voltage ensures transceiver I/O remains within absolute maximum ratings during 10/1000 µs surges. | Use Scenario: Guards USB, HDMI, and DisplayPort hot-swap connectors against human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS mounted adjacent to connector pins to divert ESD current before reaching controller ICs. Use Value: Sub-nanosecond response and AEC-Q101 qualification provide dual assurance for consumer and industrial-grade peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Same VBR (36.0 V) and VC (58.1 V), but lower PPPM (600 W) and larger SMB (DO-214AA) package | Higher surge rating suits higher-energy systems; larger footprint may conflict with dense layouts | Select when 600 W rating is required and board space permits SMB package |
| SMCJ36A | Same VBR (36.0 V), but higher PPPM (1500 W) and SMC (DO-214AB) package with 2× footprint area | Designed for heavy-duty industrial mains protection; not suitable for space-constrained automotive modules | Choose for primary-level AC/DC input protection where thermal mass and surge margin outweigh size constraints |
Compared with SMBJ36A and SMCJ36A, the TPSMA36AHE3_A/H delivers identical clamping performance in a smaller SMA package with AEC-Q101 qualification - making it optimal for automotive and compact industrial designs where board area, temperature resilience, and automotive compliance are prioritized over ultra-high surge ratings.
Availability
TPSMA36AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom line protection requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 validation.
Supply support for TPSMA36AHE3_A/H 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 reliability and high-temperature performance.
The TPSMA36AHE3_A/H belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 qualification and 185 °C operation.
FAQ
What is the clamping voltage of the TPSMA36AHE3_A/H and how is it measured?
The TPSMA36AHE3_A/H has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards with the device mounted on 5.0 mm × 5.0 mm copper pads. The clamping voltage directly determines the maximum stress imposed on protected components during surge events, and the TPSMA36AHE3_A/H maintains this specification across its full operating temperature range.
Is the TPSMA36AHE3_A/H AEC-Q101 qualified and what does that mean for automotive use?
Yes, the TPSMA36AHE3_A/H is AEC-Q101 qualified - confirmed by Vishay's documentation for base P/NHE3 ordering codes. This qualification validates the device for automotive applications through rigorous stress tests including high-temperature reverse bias, temperature cycling, and ESD. As a result, the TPSMA36AHE3_A/H is approved for use in engine control units, ADAS modules, and other safety-critical vehicle subsystems where reliability under extreme thermal and electrical stress is mandatory.
What is the difference between TPSMA36AHE3_A/H and TPSMA36AHM3_A/H?
The TPSMA36AHE3_A/H is RoHS-compliant and AEC-Q101 qualified, while the TPSMA36AHM3_A/H adds halogen-free construction to those qualifications. Both share identical electrical specifications, package, and thermal ratings. The HM3 suffix indicates compliance with additional environmental standards relevant to certain Tier 1 automotive suppliers and green manufacturing initiatives - making TPSMA36AHM3_A/H preferable where halogen-free materials are contractually required, while TPSMA36AHE3_A/H meets baseline automotive and industrial requirements.
Can the TPSMA36AHE3_A/H be used in bidirectional protection circuits?
No, the TPSMA36AHE3_A/H is unidirectional only, as explicitly stated in Vishay's datasheet. It protects against positive-going transients on a line referenced to ground and must be oriented with the cathode toward the protected circuit. For bidirectional protection (e.g., AC lines or differential data buses), a dedicated bidirectional TVS such as SMBJ36CA or a back-to-back diode configuration is required - the TPSMA36AHE3_A/H cannot substitute without risking failure during negative transients.
What is the maximum steady-state power dissipation of the TPSMA36AHE3_A/H?
The TPSMA36AHE3_A/H has a maximum steady-state power dissipation (PD) of 1.0 W at TA = 25 °C, derated linearly above that ambient temperature. This rating applies to continuous DC or low-frequency reverse-bias conditions - not transient events. In normal operation, reverse leakage remains below 1.0 µA at VWM = 30.8 V, resulting in negligible static power loss. The 1.0 W limit governs thermal design when the device is subjected to sustained overvoltage or elevated ambient temperatures.
TPSMA36AHE3_A/H 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_A/H FAQ
1.How can I place an order for TPSMA36AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA36AHE3_A/H 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_A/H reliable?
The price and inventory of TPSMA36AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA36AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA36AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA36AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA36AHE3_A/H?
TPSMA36AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA36AHE3_A/H 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_A/H?
For technical support, including TPSMA36AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA36AHE3_A/H requirements.
6.How does Aetrix verify that TPSMA36AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA36AHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA36AHE3_A/H?
All TPSMA36AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA36AHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for TPSMA36AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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