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Vishay General Semiconductor - Diodes Division TPSMC39AHE3_A/H
- Part No.:
- TPSMC39AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC39AHE3_A/H.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,927
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Product details
Overview
TPSMC39AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 39 V breakdown voltage (VBR = 37.1–41.0 V), 33.3 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 µs), 27.8 A peak pulse current (IPPM), and clamps to 53.9 V at rated surge, operating up to TJ = +185 °C. It is used to protect MOSFETs, ICs, and sensor signal lines in automotive power systems.
For engineers reviewing the TPSMC39AHE3_A/H datasheet, TPSMC39AHE3_A/H pinout, TPSMC39AHE3_A/H application, or TPSMC39AHE3_A/H equivalent, key selection considerations include unidirectional polarity, SMC (DO-214AB) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and clamping performance under 10/1000 µs transients.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high reliability under thermal stress. Its unidirectional structure provides low clamping voltage during positive-going transients while blocking reverse leakage below 33.3 V.
Rated for 1500 W peak pulse power per 10/1000 µs waveform and 200 A non-repetitive forward surge (8.3 ms half-sine), it supports automotive-grade operation with MSL Level 1 moisture sensitivity and JESD201 Class 2 whisker resistance - enabled by matte tin-plated leads and RoHS-compliant, halogen-free molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V - defines minimum voltage at which device enters avalanche conduction under 1 mA test current |
| VWM | 33.3 V - maximum continuous reverse working voltage before significant leakage begins |
| IPPM | 27.8 A - peak surge current capability at 10/1000 µs waveform, directly determining clamping robustness |
| VC | 53.9 V - maximum clamped voltage across device at IPPM, critical for downstream component overvoltage margin |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without derating penalties |
| Polarity | Unidirectional - protects against positive transients only; cathode marked by band on SMC package |
| PPPM | 1500 W - peak pulse power handling capacity under standardized 10/1000 µs surge condition |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case with matte tin-plated leads; dimensions 7.11 mm × 6.22 mm × 2.90 mm (L × W × H); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 12 V rail or sensor input); voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, AC/DC life test, and temperature cycling |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and thermal cycling |
| MSL Level 1 | Allows unlimited floor life and reflow at 260 °C peak without baking - simplifies SMT manufacturing |
| Low incremental surge resistance | Enables tighter clamping (53.9 V at 27.8 A) versus competing 39 V TVS devices with higher dynamic impedance |
| TJ = 185 °C capability | Eliminates thermal derating in engine control units and ADAS modules where ambient exceeds 125 °C |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 33.3 V. Use Value: Clamps to 53.9 V at 27.8 A, ensuring downstream regulators and microcontrollers remain within absolute maximum ratings. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground to absorb fast transients without distorting millivolt-level signals. Use Value: Sub-1 μA leakage at 33.3 V preserves signal integrity; 1500 W rating handles IEC 61000-4-5 surge coupling. |
| Telecom DC Power Input Protection | Consumer Device USB/Power Port Protection |
Use Scenario: Safeguarding PoE-powered equipment inputs against lightning-induced surges on 48 V DC lines. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of DC-DC converter, absorbing energy before regulation. Use Value: 1500 W peak power and 185 °C junction rating support sustained operation in outdoor telecom enclosures. |
Use Scenario: Preventing damage to USB-C PD controllers and charging ICs from hot-plug and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line to block >33.3 V transients while passing normal 5–20 V PD profiles. Use Value: Fast response time (<1 ns) and low clamping ensure PD communication remains uninterrupted during transient events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3_A/H | Lower VBR (34.2–37.8 V), lower PPPM (600 W), SMB package (smaller footprint, lower thermal mass) | Suitable for space-constrained consumer ports but insufficient for automotive load dump compliance | Select when board area is limited and surge energy ≤600 W; verify clamping margin with system-level testing |
| TPSMC36AHE3_A/H | 36 V VBR (34.2–37.8 V), same SMC package and 1500 W rating, 49.9 V clamping at 30.1 A | Better fit for 36 V nominal systems (e.g., dual-battery trucks); slightly lower clamping than TPSMC39AHE3_A/H | Prefer for 36 V architectures requiring tighter overvoltage margin; identical mounting and qualification |
Compared with SMBJ36AHE3_A/H and TPSMC36AHE3_A/H, TPSMC39AHE3_A/H offers higher standoff (33.3 V vs. 30.8 V) and clamping headroom for 39 V nominal rails, while maintaining AEC-Q101 qualification and SMC thermal performance - making it optimal for 12 V/42 V hybrid automotive subsystems.
Availability
TPSMC39AHE3_A/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface, and telecom DC input protection requiring stable component supply and long-term lifecycle assurance.
Supply support for TPSMC39AHE3_A/H 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 and high-temperature performance.
The TPSMC series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive and industrial environments, prioritizing high junction temperature tolerance and repeatable clamping behavior under surge stress.
FAQ
What is the maximum clamping voltage of the TPSMC39AHE3_A/H under rated surge conditions?
The TPSMC39AHE3_A/H clamps to a maximum of 53.9 V when subjected to its rated 27.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures protected circuitry remains within safe operating limits during transient events. The clamping voltage is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88407.
Is the TPSMC39AHE3_A/H qualified for automotive applications?
Yes, the TPSMC39AHE3_A/H is AEC-Q101 qualified, as explicitly stated in the Mechanical Data section and Notes column of the Vishay datasheet (document 88407). The HE3 suffix denotes RoHS-compliance and AEC-Q101 qualification, enabling use in engine control, body electronics, and ADAS modules where automotive-grade reliability is mandatory.
What does the "HE3" suffix indicate in TPSMC39AHE3_A/H?
The "HE3" suffix in TPSMC39AHE3_A/H indicates RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards. It also satisfies JESD201 Class 2 whisker resistance requirements - critical for long-life automotive and industrial deployments.
Can the TPSMC39AHE3_A/H replace the TPSMC36AHE3_A/H in a design?
The TPSMC39AHE3_A/H is not a direct replacement for TPSMC36AHE3_A/H due to its higher breakdown (37.1–41.0 V vs. 34.2–37.8 V) and clamping (53.9 V vs. 49.9 V) voltages. While both share the SMC package and AEC-Q101 qualification, substituting requires verifying that the protected circuit's overvoltage tolerance accommodates the 4 V higher clamping level of TPSMC39AHE3_A/H.
What is the thermal resistance junction-to-ambient (RθJA) for the TPSMC39AHE3_A/H?
Vishay does not publish a specific RθJA value for the TPSMC39AHE3_A/H in document 88407. Thermal performance is defined by derating curves (Fig. 2) and tested on 8.0 mm × 8.0 mm copper pads per terminal. For thermal modeling, users should apply the published pulse power derating data rather than assume a fixed RθJA, as PCB layout dominates thermal behavior in SMC-packaged TVS devices.
TPSMC39AHE3_A/H 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 27.8A
- 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)
TPSMC39AHE3_A/H FAQ
1.How can I place an order for TPSMC39AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC39AHE3_A/H 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 TPSMC39AHE3_A/H reliable?
The price and inventory of TPSMC39AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC39AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC39AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC39AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC39AHE3_A/H?
TPSMC39AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC39AHE3_A/H 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 TPSMC39AHE3_A/H?
For technical support, including TPSMC39AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC39AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC39AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC39AHE3_A/H 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 TPSMC39AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC39AHE3_A/H?
All TPSMC39AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC39AHE3_A/H, 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 TPSMC39AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC39AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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