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Vishay General Semiconductor - Diodes Division TPSMC36A-4HE3_A/I
- Part No.:
- TPSMC36A-4HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC36A-4HE3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,592
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Product details
Overview
TPSMC36A-4HE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, rated for 1500 W peak pulse power (10/1000 μs), 34.2–37.8 V breakdown voltage (VBR), and 49.9 V clamping voltage (VC) at 30.1 A peak surge current. It protects MOSFETs and signal lines in automotive powertrain control units against inductive switching transients.
For engineers reviewing the TPSMC36A-4HE3_A/I datasheet, TPSMC36A-4HE3_A/I pinout, TPSMC36A-4HE3_A/I application, or TPSMC36A-4HE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 185 °C junction temperature rating, and DO-214AB thermal derating behavior under repetitive surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and sub-nanosecond response time. Its 185 °C maximum junction temperature enables operation in under-hood automotive environments without thermal derating penalties up to 125 °C ambient.
The device delivers 49.9 V clamping at 30.1 A (10/1000 μs), with 30.8 V stand-off voltage (VWM) and only 1 μA reverse leakage at rated VWM, ensuring minimal standby power loss in always-on sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V - Ensures reliable conduction onset above system nominal voltage while avoiding false triggering during normal transients. |
| VWM | 30.8 V - Maximum continuous reverse operating voltage; compatible with 24 V automotive systems with 20 % tolerance margin. |
| VC @ IPPM | 49.9 V - Clamped voltage seen by protected IC during 30.1 A surge; stays below 50 V absolute maximum ratings of most 5 V/3.3 V interface ICs. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 μs waveform; supports high-energy load-dump and ISO 7637-2 Pulse 5a events. |
| TJ max. | +185 °C - Enables sustained operation in engine control modules where PCB temperatures exceed 150 °C near exhaust manifolds. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive discrete semiconductors including HTGB, HTRB, and temperature cycling. |
Pinout & Package
DO-214AB (SMC) surface-mount package with matte tin-plated leads, MSL Level 1 moisture sensitivity, and cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; must be routed over solid copper pour ≥ 8.0 mm × 8.0 mm for full 1500 W rating. |
| Cathode | Protected line connection | Connected to line under protection (e.g., LIN bus, sensor supply); color band identifies this terminal on body. |
Key Features
| Feature | Design Value |
|---|---|
| Uni-directional polarity | Prevents reverse-bias leakage in DC-coupled power rails while enabling precise clamping only during positive overvoltage events. |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) up to 40 V superimposed on 24 V system without degradation. |
| 185 °C junction rating | Eliminates need for thermal derating in under-hood ECU designs operating continuously at 125 °C ambient. |
| AEC-Q101 qualification | Validates reliability for automotive safety-critical functions including transmission control and ADAS sensor interfaces. |
| Low 1 μA leakage @ VWM | Minimizes quiescent current draw in battery-backed modules such as telematics and remote keyless entry receivers. |
Applications
| Automotive Powertrain Control | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 24 V solenoid driver outputs in diesel common-rail fuel injection ECUs from inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between driver output and chassis ground to clamp transients <100 ns after onset. Use Value: Limits voltage excursion to ≤49.9 V, preventing gate oxide rupture in N-channel MOSFET drivers rated for 60 V VDSS. |
Use Scenario: Safeguarding analog output lines (4–20 mA) of pressure sensors in hydraulic control valves. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across sensor output and return to absorb ESD and relay-switching noise. Use Value: Maintains signal integrity with <1 μA leakage at 30.8 V, avoiding offset errors in precision current-loop transmitters. |
| Telecom Power Supply Input | Automotive LIN Bus Node |
Use Scenario: Front-end transient suppression on 48 V telecom rectifier outputs feeding DC-DC converters. IC Role / Device Role / Timing Role: Primary clamping device absorbing lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV). Use Value: Delivers 1500 W pulse handling with 49.9 V clamping, keeping downstream converter input within 60 V absolute max rating. |
Use Scenario: ESD and load-dump protection on LIN transceiver VBAT pins in door module nodes. IC Role / Device Role / Timing Role: Unidirectional TVS tied between LIN supply rail and ground to shunt transients before reaching transceiver IC. Use Value: AEC-Q101 qualification ensures compliance with automotive LIN physical layer robustness requirements (LIN 2.2A Annex B). |
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-E3/5AT | Same VBR range (34.2–37.8 V), but lower PPPM = 400 W and smaller SMA package (DO-214AC); TJ max = 150 °C. | Limited to non-automotive industrial use due to lack of AEC-Q101 qualification and reduced surge capacity. | Select when board space is constrained and surge energy is limited to IEC 61000-4-2 ESD only. |
| 1.5KE36A | Through-hole DO-201 package; identical VBR/VC specs but higher VF (3.5 V) and no AEC-Q101 rating; PPPM = 1500 W. | Not suitable for automated SMT assembly or high-vibration automotive mounting; requires wave soldering. | Choose only for legacy through-hole designs where rework flexibility outweighs AEC-Q101 and thermal performance needs. |
Compared with SMAJ36A-E3/5AT and 1.5KE36A, the TPSMC36A-4HE3_A/I uniquely combines AEC-Q101 qualification, 185 °C junction rating, and DO-214AB thermal performance-making it the sole option for high-reliability automotive SMT applications requiring full 1500 W surge immunity.
Availability
TPSMC36A-4HE3_A/I is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor signal protection, and telecom power supply input applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMC36A-4HE3_A/I 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 and automotive-grade components.
The TPSMC36A-4HE3_A/I belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for AEC-Q101-compliant transient protection in harsh automotive and industrial environments.
FAQ
What is the maximum clamping voltage of the TPSMC36A-4HE3_A/I at its rated peak pulse current?
The TPSMC36A-4HE3_A/I has a maximum clamping voltage (VC) of 49.9 V at its rated peak pulse current (IPPM) of 30.1 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuitry remains within safe voltage limits during surge events. The TPSMC36A-4HE3_A/I achieves this with low incremental surge resistance, critical for minimizing voltage overshoot in fast-rising transients.
Is the TPSMC36A-4HE3_A/I qualified for automotive applications?
Yes, the TPSMC36A-4HE3_A/I is AEC-Q101 qualified, meeting rigorous stress testing requirements for automotive discrete semiconductors-including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. Its 185 °C maximum junction temperature and DO-214AB package make the TPSMC36A-4HE3_A/I suitable for under-hood engine control units and other demanding automotive subsystems.
What does the "HE3_A/I" suffix indicate in TPSMC36A-4HE3_A/I?
The "HE3" denotes RoHS-compliant construction with matte tin-plated leads and JESD201 Class 2 whisker resistance. "A" indicates ±5 % tolerance on VBR, and "I" specifies packaging in 13-inch diameter plastic tape and reel with 3500 units per reel. The "4" in TPSMC36A-4HE3_A/I is part of Vishay's internal revision coding and does not affect electrical specifications of the TPSMC36A-4HE3_A/I.
How does the TPSMC36A-4HE3_A/I compare to bidirectional TVS diodes in circuit protection?
The TPSMC36A-4HE3_A/I is unidirectional and optimized for DC-powered lines where reverse voltage is blocked by upstream circuitry (e.g., 24 V power rails, LIN bus). Unlike bidirectional variants, it offers lower leakage (<1 μA at VWM) and tighter VBR tolerance-critical for precision voltage monitoring. Bidirectional versions would introduce unnecessary leakage in such applications, making the TPSMC36A-4HE3_A/I the preferred choice for polarized systems.
What PCB layout guidance applies to the TPSMC36A-4HE3_A/I for full 1500 W rating?
To achieve the full 1500 W peak pulse power rating, the TPSMC36A-4HE3_A/I must be mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads at each terminal, per Vishay's datasheet Fig. 2 derating curve. Thermal vias under pads and internal ground/power planes improve heat dissipation. Avoid narrow traces-use ≥1 mm width-and maintain ≥2 mm clearance to adjacent components to prevent arcing during clamping.
TPSMC36A-4HE3_A/I 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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 30.1A
- 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 (SMC)
TPSMC36A-4HE3_A/I FAQ
1.How can I place an order for TPSMC36A-4HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC36A-4HE3_A/I 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 TPSMC36A-4HE3_A/I reliable?
The price and inventory of TPSMC36A-4HE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC36A-4HE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMC36A-4HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC36A-4HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC36A-4HE3_A/I?
TPSMC36A-4HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC36A-4HE3_A/I 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 TPSMC36A-4HE3_A/I?
For technical support, including TPSMC36A-4HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC36A-4HE3_A/I requirements.
6.How does Aetrix verify that TPSMC36A-4HE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMC36A-4HE3_A/I 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 TPSMC36A-4HE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMC36A-4HE3_A/I?
All TPSMC36A-4HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC36A-4HE3_A/I, 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 TPSMC36A-4HE3_A/I part is unused and in its original packaging.
Return procedure for TPSMC36A-4HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC36A-4HE3_A/I Tags
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