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Vishay General Semiconductor - Diodes Division TPSMC36HE3/9AT
- Part No.:
- TPSMC36HE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC36HE3/9AT.pdf
- Description:
- TVS DIODE 29.1VWM 52VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
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Product details
Overview
TPSMC36HE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge clamping in automotive and industrial power rails. It features a 36 V nominal breakdown voltage (VBR = 34.2–37.8 V at IT = 1 mA), 30.8 V maximum stand-off voltage (VWM), 49.9 V clamping voltage (VC) at 30.1 A peak pulse current, 1500 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature - enabling robust protection of 24 V DC systems against load dump and inductive switching transients.
For engineers reviewing the TPSMC36HE3/9AT datasheet, TPSMC36HE3/9AT pinout, TPSMC36HE3/9AT application, or TPSMC36HE3/9AT equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity, MSL Level 1 rating, 260 °C reflow compatibility, and verified clamping performance under 10/1000 μs surge waveforms per ANSI/IEEE C62.35.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (30.8 V), it transitions rapidly from high-impedance to low-impedance state, diverting surge current away from downstream ICs or MOSFETs. Its passivated anisotropic rectifier structure ensures stable VBR drift (αT = 0.090 %/°C) and low incremental surge resistance over temperature.
Rated for non-repetitive 10/1000 μs surges up to 1500 W with derating above 25 °C, it sustains 200 A peak forward surge (8.3 ms half-sine) and exhibits <3.5 V forward voltage at 100 A - critical for minimizing conduction loss during bidirectional fault events where forward conduction may occur.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 / 36.0 / 37.8 V at 1 mA - defines precise clamping onset threshold for 24 V system overvoltage detection |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA, ensuring no false triggering on nominal 24 V rail |
| VC @ IPPM | 49.9 V at 30.1 A - actual clamped voltage seen by protected circuit during worst-case 1500 W surge |
| PPPM | 1500 W (10/1000 μs) - energy-handling capacity sufficient for ISO 7637-2 Pulse 5a load dump suppression |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without thermal derating penalties |
| Package | SMC (DO-214AB) - industry-standard 8.13 mm × 6.22 mm surface-mount outline with cathode band marking |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
TPSMC36HE3/9AT uses the standard SMC (DO-214AB) package: a rectangular surface-mount body with two terminals, cathode identified by a color band. Mounting requires 8.0 mm × 8.0 mm copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to system ground or low-side reference; carries full surge current during clamping |
| Cathode | Reverse-biased input / Clamping node | Connected to protected line (e.g., 24 V rail); voltage clamps to ≤49.9 V when transients exceed VWM |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures <±5 % VBR tolerance and stable leakage (<1 μA at VWM) across -65 to +185 °C |
| High-temperature capability | TJ = 185 °C rating allows uninterrupted operation in engine control units and power distribution modules without thermal shutdown |
| Clamping efficiency | Low VC/VBR ratio (1.39) minimizes voltage overshoot margin required for protected MOSFETs or microcontrollers |
| Surge robustness | 200 A IFSM (8.3 ms) supports repeated load-dump events without bond-wire fusing or parameter shift |
| Manufacturing compliance | RoHS-compliant, halogen-free (HM3 variant), MSL Level 1, JESD201 Class 2 whisker-resistant matte tin plating |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in junction boxes and body control modules from ISO 7637-2 Pulse 5a load dump transients (up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Shunt clamping device placed between 24 V rail and chassis ground, activated within <1 ns to limit voltage excursion. Use Value: Prevents latch-up or gate oxide rupture in downstream PMICs and CAN transceivers by holding rail voltage ≤49.9 V during 1500 W surges. |
Use Scenario: Safeguarding analog input channels (0–10 V, 4–20 mA) in programmable logic controllers against field-wiring induced surges from solenoid switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on signal conditioning front-end, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Maintains signal integrity by limiting transient-induced offset errors and preventing ADC saturation during 1 kV/μs fast-rising spikes. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
Use Scenario: Securing -48 V DC backup power feeds in base station equipment against lightning-induced surges on outdoor cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS on negative rail, referenced to system ground, absorbing common-mode transients coupled onto feed lines. Use Value: Enables compliance with IEC 61000-4-5 Level 4 (4 kV) by clamping surge energy before it reaches DC/DC converters and monitoring ICs. |
Use Scenario: Clamping Miller-induced voltage spikes on high-side N-channel MOSFET gates during fast switching in BLDC motor inverters. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) shunt device across gate-source terminals to suppress dV/dt-induced turn-on. Use Value: Reduces gate driver stress and prevents unintended conduction by limiting VGS to <±20 V during 50 ns transients, preserving FET reliability. |
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 | Lower PPPM (600 W), same VBR range, SMB package (smaller footprint, lower thermal mass) | Not qualified to AEC-Q101; limited to commercial/industrial use below 150 °C ambient | Select when space-constrained PCB layout prioritizes size over automotive-grade surge margin |
| TPSMC36AHM3/9AT | Identical electrical specs; HM3 suffix denotes halogen-free construction (vs. HE3's RoHS-only compliance) | Required for strict environmental compliance in EU automotive Tier 1 supply chains mandating halogen-free materials | Choose HM3 when material declarations (e.g., IMDS, ELV) require halogen-free certification beyond RoHS |
Compared with SMBJ36A and TPSMC36AHM3/9AT, the TPSMC36HE3/9AT delivers higher surge immunity (1500 W vs. 600 W) and automotive qualification while maintaining identical clamping behavior - making it the preferred choice for safety-critical 24 V rail protection where thermal stability and regulatory compliance are mandatory.
Availability
TPSMC36HE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, and telecom DC power feeds requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPSMC36HE3/9AT 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-power, and automotive-qualified components.
The TPSMC36HE3/9AT belongs to Vishay's PAR® (Protection Against Transients) family of surface-mount TVS diodes, engineered specifically for high-temperature, high-energy surge suppression in automotive and industrial power systems.
FAQ
What is the clamping voltage of TPSMC36HE3/9AT at its rated peak pulse current?
The TPSMC36HE3/9AT has a maximum clamping voltage (VC) of 49.9 V at 30.1 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The TPSMC36HE3/9AT maintains this clamping performance across its full operating temperature range due to its low temperature coefficient (0.090 %/°C).
Is TPSMC36HE3/9AT qualified for automotive applications?
Yes, TPSMC36HE3/9AT is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature reverse bias, temperature cycling, and highly accelerated life testing specifically for automotive use. The "HE3" suffix confirms RoHS compliance and AEC-Q101 qualification, making TPSMC36HE3/9AT suitable for engine control units, body electronics, and ADAS power supplies where reliability under extreme thermal and mechanical stress is mandatory.
What is the difference between TPSMC36HE3/9AT and TPSMC36AHM3/9AT?
The TPSMC36HE3/9AT and TPSMC36AHM3/9AT share identical electrical specifications, package, and AEC-Q101 qualification. The distinction lies in material composition: HE3 is RoHS-compliant, while HM3 adds halogen-free certification per IEC 61249-2-21. Both meet JESD201 Class 2 whisker resistance and MSL Level 1, but TPSMC36AHM3/9AT is required for Tier 1 automotive programs enforcing halogen-free supply chain mandates - a requirement not imposed on TPSMC36HE3/9AT.
Does TPSMC36HE3/9AT support reflow soldering at 260 °C?
Yes, TPSMC36HE3/9AT meets MSL Level 1 per J-STD-020 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102 solderability standards, and the molding compound is UL 94 V-0 rated. This ensures robust intermetallic formation and joint integrity during standard 7-zone reflow profiles used in automotive electronics manufacturing.
What is the maximum reverse leakage current of TPSMC36HE3/9AT at 30.8 V and 150 °C?
At VWM = 30.8 V and TJ = 150 °C, the TPSMC36HE3/9AT exhibits a maximum reverse leakage current (ID) of 15 μA. This elevated leakage - compared to 1.0 μA at 25 °C - is fully characterized and accounted for in the device's thermal derating curves. The TPSMC36HE3/9AT remains effective as a clamping device because its VBR stability (via αT = 0.090 %/°C) ensures predictable turn-on even under high-temperature bias conditions.
TPSMC36HE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 28.8A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC36HE3/9AT FAQ
1.How can I place an order for TPSMC36HE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC36HE3/9AT 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 TPSMC36HE3/9AT reliable?
The price and inventory of TPSMC36HE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC36HE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC36HE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC36HE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC36HE3/9AT?
TPSMC36HE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC36HE3/9AT 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 TPSMC36HE3/9AT?
For technical support, including TPSMC36HE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC36HE3/9AT requirements.
6.How does Aetrix verify that TPSMC36HE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC36HE3/9AT 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 TPSMC36HE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC36HE3/9AT?
All TPSMC36HE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC36HE3/9AT, 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 TPSMC36HE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC36HE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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