My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMA36AHE3/5AT
- Part No.:
- TPSMA36AHE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA36AHE3/5AT.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,847
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMA36AHE3/5AT 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), 1.0 W steady-state power dissipation, and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMA36AHE3/5AT datasheet, TPSMA36AHE3/5AT pinout, TPSMA36AHE3/5AT application, or TPSMA36AHE3/5AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, TJ = 185 °C capability, clamping performance under 10/1000 µs surge, and compatibility with automated SMT assembly per J-STD-002.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional structure provides fast response time and excellent clamping behavior during inductive switching events or lightning-induced surges.
Rated for 400 W peak pulse power with 0.01 % duty cycle and derated above 25 °C per Fig. 2, it supports repetitive transient suppression in automotive ECUs and industrial controllers where thermal margin and reliability under sustained ambient heat are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V at 1.0 mA - defines precise voltage threshold at which avalanche conduction begins, enabling accurate overvoltage trip point setting |
| VWM | 30.8 V - maximum continuous reverse working voltage; ensures no leakage conduction during normal operation below this level |
| VC @ IPPM | 49.9 V at 8.0 A - clamped voltage during worst-case 10/1000 µs surge; determines protected circuit's maximum stress exposure |
| PPPM | 400 W - peak pulse power handling capacity; validates robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ max. | +185 °C - enables use in under-hood automotive modules without derating, supporting AEC-Q101 qualification requirements |
| Polarity | Unidirectional - blocks reverse current only; requires correct orientation relative to DC bias, unlike bidirectional variants |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), RoHS-compliant and AEC-Q101 qualified. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge current sink (in reverse-biased clamping mode) | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Cathode | Reference node / Ground return path | Typically tied to system ground or low-impedance return; establishes clamping reference potential |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over lifetime and temperature, critical for long-term automotive reliability |
| 400 W peak pulse power (10/1000 µs) | Supports compliance with ISO 7637-2 Class III/IV and IEC 61000-4-5 Level 3/4 surge immunity testing |
| TJ = 185 °C capability | Eliminates need for thermal derating in engine control units operating at +125 °C ambient |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade production use including HTOL, TC, UHAST, and ESD testing per AEC standard |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in body control modules exposed to load dump and alternator transients. IC Role / Device Role: Unidirectional TVS placed between VIN and GND to clamp surges above 36 V while remaining non-conductive below 30.8 V. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤49.9 V during 400 W transients, preventing latch-up or oxide damage. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation systems from ESD and inductive kickback. IC Role / Device Role: TVS connected across signal and return lines to absorb fast-rising transients before they reach ADC input stages. Use Value: Achieves sub-1 ns response time and clamps 8 kV ESD (IEC 61000-4-2) to safe levels without affecting 20 kHz signal bandwidth. |
| Telecom DC Power Input Protection | Consumer Device USB Port Surge Suppression |
Use Scenario: Safeguarding PoE-powered network switches' 48 V DC input stage against lightning-induced surges on outdoor cabling. IC Role / Device Role: Primary clamping device on main DC bus, coordinated with upstream fuses and secondary filtering. Use Value: Handles repetitive 10/1000 µs surges up to 400 W without degradation, maintaining VC ≤ 49.9 V even after 1000 pulses. | Use Scenario: Adding transient immunity to USB Type-C power delivery circuits in portable monitors subject to hot-plug and cable discharge events. IC Role / Device Role: Unidirectional TVS on VBUS line to suppress overshoot during 5–20 V PD transitions and external ESD. Use Value: Leverages 1.0 µA max leakage at 30.8 V to avoid loading USB PD negotiation logic while providing 49.9 V clamping ceiling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Same SMA package, 36 V VBR, but rated for 400 W with 1.0 ms pulse (not 10/1000 µs); lower clamping voltage (48.4 V @ 8.3 A) | Not AEC-Q101 qualified; intended for commercial/industrial use only | Select if AEC-Q101 is not required and tighter clamping is prioritized over standardized surge waveform compliance |
| TPSMA36CA | Same family, bidirectional variant; symmetric VBR (±36 V), higher capacitance, same 400 W rating | Used where AC-coupled or dual-polarity signals require protection (e.g., RS-485, CAN bus) | Choose only when protecting balanced differential lines or AC waveforms; not suitable for DC power rails requiring unidirectional blocking |
Compared with SMAJ36A and TPSMA36CA, the TPSMA36AHE3/5AT uniquely combines AEC-Q101 qualification, 10/1000 µs waveform-rated 400 W capability, and unidirectional architecture optimized for DC power rail clamping - making it the preferred choice for automotive and high-reliability industrial designs.
Availability
TPSMA36AHE3/5AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer USB PD systems requiring stable component supply with full traceability and lifecycle management.
Supply support for TPSMA36AHE3/5AT 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, high-temperature operation, and automotive qualification.
The TPSMA36AHE3/5AT belongs to Vishay's PAR® (Protected Avalanche Rectifier) TVS family, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 compliance and 185 °C junction operation are mandatory.
FAQ
What is the AEC-Q101 qualification status of the TPSMA36AHE3/5AT?
The TPSMA36AHE3/5AT carries the HE3 suffix, confirming full AEC-Q101 qualification per Vishay's documentation. This includes stress testing for high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and ESD per HBM and CDM models - all validated for automotive production use.
Does the TPSMA36AHE3/5AT have a bidirectional or unidirectional configuration?
The TPSMA36AHE3/5AT is strictly unidirectional. Its electrical characteristics table specifies only positive VBR and VC values, and the datasheet explicitly states "Available in uni-directional polarity only." Bidirectional operation is not supported; using it in reverse-biased AC applications would result in forward conduction and failure.
What is the maximum clamping voltage of the TPSMA36AHE3/5AT under standard test conditions?
The TPSMA36AHE3/5AT has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 1 and Table 1 in Document Number 88405 and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events.
Can the TPSMA36AHE3/5AT be used in place of the TPSMA36CA for DC power line protection?
No - the TPSMA36CA is a bidirectional variant with symmetrical breakdown, while the TPSMA36AHE3/5AT is unidirectional. Substituting the TPSMA36AHE3/5AT for TPSMA36CA on AC-coupled lines may cause unintended conduction; conversely, using TPSMA36CA on DC rails sacrifices the precise reverse-blocking behavior essential for stable 12 V or 48 V bus protection.
What packaging and moisture sensitivity level does the TPSMA36AHE3/5AT have?
The TPSMA36AHE3/5AT is supplied in SMA (DO-214AC) package on 7" plastic tape and reel (5AT denotes 1800-unit reel). It meets MSL Level 1 per J-STD-020 with a maximum lead-free reflow peak temperature of 260 °C, requiring no dry pack or floor life limitations prior to soldering.
TPSMA36AHE3/5AT 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)
TPSMA36AHE3/5AT FAQ
1.How can I place an order for TPSMA36AHE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA36AHE3/5AT 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 TPSMA36AHE3/5AT reliable?
The price and inventory of TPSMA36AHE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA36AHE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA36AHE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA36AHE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA36AHE3/5AT?
TPSMA36AHE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA36AHE3/5AT 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 TPSMA36AHE3/5AT?
For technical support, including TPSMA36AHE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA36AHE3/5AT requirements.
6.How does Aetrix verify that TPSMA36AHE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA36AHE3/5AT 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 TPSMA36AHE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA36AHE3/5AT?
All TPSMA36AHE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA36AHE3/5AT, 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 TPSMA36AHE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA36AHE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA36AHE3/5AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
