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Vishay General Semiconductor - Diodes Division TPSMC36A-4HE3_B/I
- Part No.:
- TPSMC36A-4HE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC36A-4HE3_B/I.pdf
- Description:
- TVS DIODE SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,587
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Product details
Overview
TPSMC36A-4HE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 36 V nominal breakdown voltage (VBR), 30.8 V maximum stand-off voltage (VWM), 49.9 V clamping voltage at 30.1 A peak pulse current, 1500 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature - enabling robust protection in automotive power rails and industrial sensor interfaces.
For engineers reviewing the TPSMC36A-4HE3_B/I datasheet, TPSMC36A-4HE3_B/I pinout, TPSMC36A-4HE3_B/I application, or TPSMC36A-4HE3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity, MSL Level 1 rating, 1.0 μA max reverse leakage at VWM, and compatibility with high-reliability 12 V–24 V DC systems requiring fast-response overvoltage suppression.
Technical Context
This TVS diode operates as a voltage-clamping device using passivated anisotropic rectifier technology, with breakdown triggered at 34.2–37.8 V (min–max VBR at 1 mA). Its low incremental surge resistance and 10/1000 μs waveform-rated 1500 W capability enable effective energy diversion during ESD and load-switching transients without thermal runaway.
The device sustains 200 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V max forward voltage at 100 A, and maintains stable clamping performance across -65 °C to +185 °C operating range - validated under AEC-Q101 stress conditions including temperature cycling and HTRB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V at 1 mA - defines precise clamping initiation threshold for 24 V nominal systems |
| VWM | 30.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, ensuring no false triggering in 24 V rail operation |
| VC @ IPPM | 49.9 V at 30.1 A - clamping voltage during 10/1000 μs surge, limiting downstream IC stress to safe levels |
| PPPM | 1500 W - peak pulse power handling capacity, supporting high-energy transients in automotive power distribution |
| TJ max. | +185 °C - enables operation in under-hood environments and high-power industrial enclosures without derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct cathode orientation toward protected line |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal dissipation |
Pinout & Package
Package: SMC (DO-214AB), molded case with matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix), polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VIN exceeds VBR |
| Anode | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift < ±5 % over lifetime and 1000-hour HTRB testing at 175 °C |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements including TC, HTGB, and AC-H3TRB |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
| 1500 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 1/2a/5a transients in 12 V/24 V vehicle electrical systems |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to downstream 3.3 V/5 V logic |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 12 V/24 V battery-fed ECUs and lighting modules. IC Role / Device Role / Timing Role: Voltage-clamping TVS diode placed between power input and ground, activated within <1 ns of overvoltage event. Use Value: Limits peak voltage to ≤49.9 V during 1500 W surges, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay switching noise. IC Role / Device Role / Timing Role: Unidirectional transient suppressor mounted at connector interface, shunting induced spikes to chassis ground. Use Value: Maintains signal integrity with <1.0 μA leakage at 30.8 V, avoiding offset errors in precision current-loop receivers. |
| Telecom DC Power Input Protection | Computer Peripheral USB Power Line Protection |
|
Use Scenario: Guarding 48 V DC input stages of PoE-powered network switches against lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on bulk DC input, coordinated with upstream MOVs and downstream DC-DC converters. Use Value: Withstands repeated 10/1000 μs surges up to 30.1 A while maintaining VC ≤49.9 V, preserving converter UVP/OVP thresholds. |
Use Scenario: Safeguarding USB Type-C VBUS lines in docking stations against hot-plug voltage spikes and ESD events. IC Role / Device Role / Timing Role: Fast-response clamping device placed adjacent to USB controller, referenced to system ground. Use Value: Achieves <1 ns response time and 49.9 V clamping at 30.1 A, meeting IEC 61000-4-2 Level 4 (±15 kV air) without affecting 5 V regulation. |
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 (Microchip) | Same VBR range (34.2–37.8 V), but lower PPPM = 400 W; SMA package (smaller thermal mass) | Limited to lower-energy transients (e.g., IEC 61000-4-5 2nd level); unsuitable for automotive load dump | Select when space-constrained PCB layout prioritizes footprint over surge rating |
| 1.5KE36A (ON Semiconductor) | Through-hole DO-201 package; identical VBR/VC specs but higher VF (4.5 V) and lower IFSM (100 A) | Requires wave soldering; not AEC-Q101 qualified; incompatible with automated SMT lines | Choose only for legacy through-hole designs where rework flexibility outweighs automotive compliance needs |
Compared with SMAJ36A and 1.5KE36A, the TPSMC36A-4HE3_B/I delivers superior surge robustness (1500 W vs. 400 W/600 W), AEC-Q101 qualification, and SMC package thermal performance - making it the preferred choice for new automotive and industrial SMT designs demanding high-reliability transient suppression.
Availability
TPSMC36A-4HE3_B/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC input conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPSMC36A-4HE3_B/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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for demanding industrial and automotive applications.
The TPSMC36A-4HE3_B/I belongs to Vishay's PAR® series of transient voltage suppressors, engineered specifically for high-temperature stability and AEC-Q101-compliant operation in harsh automotive and industrial environments.
FAQ
What is the exact breakdown voltage tolerance for TPSMC36A-4HE3_B/I?
The TPSMC36A-4HE3_B/I has a guaranteed breakdown voltage range of 34.2 V (minimum) to 37.8 V (maximum) at 1 mA test current, with 36.0 V as the nominal value. This ±5 % tolerance is measured per ANSI/IEEE C62.35 standards and remains stable across -65 °C to +185 °C operating temperatures due to its passivated anisotropic rectifier structure.
Is TPSMC36A-4HE3_B/I suitable for bidirectional transient protection?
No, the TPSMC36A-4HE3_B/I is unidirectional only, as confirmed in the Vishay datasheet. It protects against positive-going transients on the cathode side relative to anode. For bidirectional protection, a pair of TPSMC36A-4HE3_B/I devices in series opposition or a dedicated bidirectional TVS like TPSMC36CA would be required.
Does TPSMC36A-4HE3_B/I meet automotive qualification standards?
Yes, the HE3 suffix explicitly denotes AEC-Q101 qualification. The TPSMC36A-4HE3_B/I has passed all required stress tests including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing - making it approved for use in automotive powertrain, body control, and ADAS modules.
What is the maximum clamping voltage of TPSMC36A-4HE3_B/I under surge conditions?
The TPSMC36A-4HE3_B/I clamps to a maximum of 49.9 V when subjected to its rated 30.1 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and ensures downstream 3.3 V/5 V logic remains within safe operating limits during transient events.
How does the SMC package of TPSMC36A-4HE3_B/I impact thermal performance?
The SMC (DO-214AB) package of TPSMC36A-4HE3_B/I requires 8.0 mm × 8.0 mm copper pads at each terminal to achieve full 1500 W pulse power rating. Its thermal resistance from junction-to-board is optimized for surface-mount reliability, supporting continuous operation up to +185 °C junction temperature when properly mounted per Vishay's recommended pad layout.
TPSMC36A-4HE3_B/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:
- Active
- 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_B/I FAQ
1.How can I place an order for TPSMC36A-4HE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC36A-4HE3_B/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_B/I reliable?
The price and inventory of TPSMC36A-4HE3_B/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_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC36A-4HE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC36A-4HE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC36A-4HE3_B/I?
TPSMC36A-4HE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC36A-4HE3_B/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_B/I?
For technical support, including TPSMC36A-4HE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC36A-4HE3_B/I requirements.
6.How does Aetrix verify that TPSMC36A-4HE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC36A-4HE3_B/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_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC36A-4HE3_B/I?
All TPSMC36A-4HE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC36A-4HE3_B/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_B/I part is unused and in its original packaging.
Return procedure for TPSMC36A-4HE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC36A-4HE3_B/I Tags
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