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Vishay General Semiconductor - Diodes Division TPSMC36AHE3_B/I
- Part No.:
- TPSMC36AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC36AHE3_B/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
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Product details
Overview
TPSMC36AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 36 V nominal breakdown voltage (VBR = 34.2–37.8 V), 30.8 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 49.9 V clamping voltage at 30.1 A, and operates up to +185 °C junction temperature - deployed in automotive power rails and industrial sensor interfaces.
For engineers reviewing the TPSMC36AHE3_B/I datasheet, TPSMC36AHE3_B/I pinout, TPSMC36AHE3_B/I application, or TPSMC36AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 10/1000 μs waveform capability, and compatibility with high-reliability automotive PCB layouts requiring robust ESD and load-dump immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for stable clamping under repetitive surge stress. Its junction design supports operation up to TJ = 185 °C and meets JESD201 Class 2 whisker resistance requirements.
The device delivers low incremental surge resistance and fast response time to limit transient overvoltage before sensitive downstream components like MOSFETs or microcontrollers are damaged. Clamping performance is specified at IPPM = 30.1 A with VC = 49.9 V, validated per ANSI/IEEE C62.35 standards using 10/1000 μs waveform testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 V / 36.0 V / 37.8 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 30.8 V - maximum continuous reverse voltage the device blocks without leakage exceeding 1.0 μA |
| VC @ IPPM | 49.9 V at 30.1 A - limits peak voltage seen by protected IC during 1500 W transient events |
| PPPM | 1500 W (10/1000 μs) - handles high-energy surges common in automotive load-dump and inductive switching |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band denotes terminal orientation |
| MSL Rating | Level 1 (J-STD-020) - supports standard reflow soldering without moisture sensitivity concerns |
Pinout & Package
TPSMC36AHE3_B/I is housed in an SMC (DO-214AB) surface-mount package with molded epoxy body, matte tin-plated leads, and cathode identification via color band. Dimensions: 7.11 mm × 6.60 mm × 2.90 mm (L × W × H), compatible with standard 8.0 mm × 8.0 mm copper pad layout per datasheet Fig. 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VBR exceeded |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 surge events without degradation |
| Junction temp. up to +185 °C | Enables placement near heat sources (e.g., power converters) without derating or thermal shutdown |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage margin between trigger and clamp, improving protection headroom for 3.3 V/5 V logic |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-bake requirement and supports high-throughput SMT assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients during alternator regulation failure. IC Role / Device Role / Timing Role: TVS diode placed at input filter stage to clamp voltage spikes before DC-DC converter input. Use Value: Limits peak rail voltage to ≤49.9 V during 1500 W surges, preventing damage to upstream regulators and MCU power supplies. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and ground to shunt fast transients (<1 ns rise time). Use Value: Maintains signal integrity below 30.8 V stand-off while clamping 8 kV contact ESD per IEC 61000-4-2 with sub-100 ps response. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Protection |
Use Scenario: Safeguarding PoE-powered Ethernet ports against lightning-induced surges on data pairs. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each differential pair, referenced to isolated ground plane. Use Value: Withstands 10/1000 μs surges up to 1500 W without parametric shift, preserving IEEE 802.3af/at compliance. | Use Scenario: Adding secondary surge protection after primary MOV on AC-DC adapter input stage. IC Role / Device Role / Timing Role: Fast-response TVS supplementing slower thermal cutoffs to handle fast-rising line transients. Use Value: Reduces let-through voltage to <50 V during combination wave surges (1.2/50 μs + 8/20 μs), extending capacitor lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A (Vishay) | Lower PPPM = 400 W; SMA package (smaller footprint); same VBR range and unidirectional polarity | Not rated for AEC-Q101; limited to consumer/industrial use where automotive qualification is not required | Select when board space is constrained and surge energy is ≤400 W; verify thermal dissipation on smaller pad area. |
| 1.5KE36A (ON Semiconductor) | Through-hole DO-201 package; identical VBR, VC, and PPPM; no AEC-Q101 or MSL Level 1 rating | Requires wave soldering or hand assembly; unsuitable for automated SMT lines or high-reliability automotive programs | Choose for legacy through-hole designs or prototyping where reflow compatibility is not needed. |
Compared with SMAJ36A-E3/5A and 1.5KE36A, the TPSMC36AHE3_B/I provides higher surge robustness (1500 W vs. 400 W or 1500 W), automotive qualification, and SMT-ready packaging - making it optimal for production-grade automotive and industrial systems demanding AEC-Q101 compliance and high-volume assembly.
Availability
TPSMC36AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, telecom line cards, and consumer power adapters requiring stable component supply across long production lifecycles.
Supply support for TPSMC36AHE3_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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The TPSMC series belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for robust, high-energy surge immunity in harsh environments - targeting automotive power distribution, industrial control, and infrastructure equipment.
FAQ
What is the clamping voltage of the TPSMC36AHE3_B/I at its rated peak pulse current?
The TPSMC36AHE3_B/I has a maximum clamping voltage (VC) of 49.9 V at its peak pulse current (IPPM) of 30.1 A, measured under standardized 10/1000 μs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events, ensuring downstream components remain within safe operating margins. The TPSMC36AHE3_B/I maintains this clamping performance across its full operational temperature range.
Is the TPSMC36AHE3_B/I qualified for automotive applications?
Yes, the TPSMC36AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - validating suitability for under-hood and chassis-mounted automotive electronics. The TPSMC36AHE3_B/I meets these requirements without derating up to +185 °C junction temperature.
What does the "B/I" suffix mean in TPSMC36AHE3_B/I?
The "B/I" suffix in TPSMC36AHE3_B/I indicates the revision level ("B") and packaging format ("I"). "I" specifies bulk packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This format supports high-speed pick-and-place assembly in automated SMT lines. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "B" reflects the current revision of the device's manufacturing and test specifications per Vishay document 88407.
Can the TPSMC36AHE3_B/I be used in bidirectional configurations?
No, the TPSMC36AHE3_B/I is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts transient current from cathode to anode when reverse voltage exceeds VBR, and blocks forward voltage up to 3.5 V at 100 A. For bidirectional protection, two TPSMC36AHE3_B/I devices must be connected in series opposition, or a dedicated bidirectional TVS (e.g., TPSMC36CA) should be selected. Using a single TPSMC36AHE3_B/I in bidirectional mode risks failure during negative-going transients.
What is the maximum operating temperature for the TPSMC36AHE3_B/I?
The TPSMC36AHE3_B/I has a maximum operating junction temperature (TJ) of +185 °C, verified per Vishay's thermal characterization and AEC-Q101 qualification. This allows reliable operation in high-ambient environments such as engine control units, motor drives, and industrial power supplies. Derating curves in the datasheet show pulse power capability decreases linearly above +25 °C ambient, but the TPSMC36AHE3_B/I retains full functionality up to its absolute maximum TJ.
TPSMC36AHE3_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)
TPSMC36AHE3_B/I FAQ
1.How can I place an order for TPSMC36AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC36AHE3_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 TPSMC36AHE3_B/I reliable?
The price and inventory of TPSMC36AHE3_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 TPSMC36AHE3_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC36AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC36AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC36AHE3_B/I?
TPSMC36AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC36AHE3_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 TPSMC36AHE3_B/I?
For technical support, including TPSMC36AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC36AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC36AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC36AHE3_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 TPSMC36AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC36AHE3_B/I?
All TPSMC36AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC36AHE3_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 TPSMC36AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC36AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC36AHE3_B/I Tags
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