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Vishay General Semiconductor - Diodes Division TPSMC39HE3_A/H
- Part No.:
- TPSMC39HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC39HE3_A/H.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,846
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Product details
Overview
TPSMC39HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 39 V breakdown voltage (VBR = 37.1–41.0 V at IT = 1 mA), 1500 W peak pulse power (10/1000 μs), and 185 °C maximum junction temperature. It protects MOSFETs, ICs, and sensor signal lines in automotive powertrain control units against inductive switching transients.
For engineers reviewing the TPSMC39HE3_A/H datasheet, TPSMC39HE3_A/H pinout, TPSMC39HE3_A/H application, or TPSMC39HE3_A/H equivalent, key selection criteria include clamping voltage (VC = 53.9 V at IPPM), low leakage (<1.0 μA at VWM = 33.3 V), AEC-Q101 qualification, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under high-temperature operation up to 185 °C, with thermal coefficient of VBR at +0.091 %/°C. Its unidirectional polarity enables robust reverse-biased surge suppression on DC power rails and signal paths.
The device meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 (260 °C peak reflow), supporting automotive-grade soldering processes. Clamping performance is validated per ANSI/IEEE C62.35 using 10/1000 μs waveform, with VC ≤ 53.9 V at IPPM = 27.8 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V at IT = 1 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 33.3 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 53.9 V at 27.8 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 μs) - peak surge energy handling capacity without failure |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| IR @ VWM | ≤1.0 μA at 25 °C - ensures minimal standby current drain in battery-powered systems |
| AEC-Q101 | Qualified - certified for automotive electronic modules per stress test requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by band. Dimensions: 7.11 × 6.22 × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit terminal during reverse avalanche clamping | Connected to protected line (e.g., 12 V rail or CAN_H); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Withstands high-energy transients from load dump or relay coil de-energization without degradation |
| 185 °C junction rating | Supports extended operation in engine control units and power inverters without derating |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, body electronics, and ADAS sensors |
| MSL Level 1 (260 °C) | Enables single-reflow assembly with standard lead-free PCB processes without preconditioning |
| Low VC/VBR ratio (1.38) | Minimizes overvoltage exposure to protected ICs while maintaining margin against false triggering |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 12 V supply rails feeding engine ECU microcontrollers. IC Role / Device Role: Unidirectional TVS placed between battery input and LDO regulator input. Use Value: Clamps surge to ≤53.9 V, preventing LDO overvoltage shutdown and MCU brownout during alternator regulation failure. |
Use Scenario: Protecting gate drivers and current-sense amplifiers from flyback spikes generated by IGBT switching in HVAC inverter stages. IC Role / Device Role: TVS mounted across motor phase output terminals and ground plane. Use Value: Limits voltage overshoot to <54 V, avoiding gate oxide rupture in 600 V IGBTs and preserving analog front-end accuracy. |
| Automotive Sensor Signal Lines | Telecom Power Interface |
|
Use Scenario: Shielding LIN bus transceivers and pressure sensor outputs from ESD and cable discharge events in cabin modules. IC Role / Device Role: TVS placed on LIN data line (single-line topology) with cathode to VCC, anode to GND. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), holding line voltage below 5.5 V during event. |
Use Scenario: Safeguarding PoE (Power over Ethernet) midspan injectors against lightning-induced surges on 48 V DC feed lines. IC Role / Device Role: TVS installed on primary side of isolated DC/DC converter input stage. Use Value: Absorbs 1500 W surge energy per IEEE C62.41 Category B, maintaining converter uptime during outdoor telecom cabinet strikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Lower PPPM (600 W), smaller SMB package, VBR = 36–40 V, VC = 58.1 V at 10.3 A | Not AEC-Q101 qualified; suitable for consumer/industrial but not automotive under-hood use | Select when space-constrained layouts require smaller footprint and surge energy demand is ≤600 W |
| TPSMC36HE3_A/H | Lower VBR (34.2–37.8 V), same package, VC = 49.9 V at 30.1 A, identical AEC-Q101 and MSL Level 1 ratings | Better suited for 3.3 V or 5 V logic rail protection where lower clamping voltage is critical | Choose when protecting 24 V nominal systems with tighter voltage margins or lower VWM tolerance (30.8 V) |
Compared with TPSMC39HE3_A/H, SMBJ36A offers reduced surge capability and no automotive qualification, while TPSMC36HE3_A/H provides lower clamping voltage and stand-off voltage for tighter-rail designs-both share SMC packaging but differ in voltage grading and application scope.
Availability
TPSMC39HE3_A/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power interface applications requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPSMC39HE3_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 TPSMC39HE3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial environments demanding AEC-Q101 qualification and 185 °C operation.
FAQ
What is the breakdown voltage tolerance for TPSMC39HE3_A/H?
The TPSMC39HE3_A/H has a specified breakdown voltage range of 37.1 V (minimum) to 41.0 V (maximum) at test current IT = 1 mA, with typical value 39.0 V. This ±5% tolerance ensures consistent clamping onset across production lots and supports reliable design margining in 36–42 V system rails.
Is TPSMC39HE3_A/H suitable for bidirectional transient suppression?
No, TPSMC39HE3_A/H is unidirectional only, as confirmed in the Vishay datasheet under FEATURES and ELECTRICAL CHARACTERISTICS. It must be used with cathode connected to the protected line and anode to ground. For bidirectional protection, a separate device such as SMAJ33CA or dual-diode array would be required.
Does TPSMC39HE3_A/H meet RoHS and halogen-free requirements?
Yes, the HE3 suffix indicates RoHS-compliant construction. Per the datasheet, "Base P/NHE3_X – RoHS-compliant and AEC-Q101 qualified." Halogen-free status applies only to HM3-suffixed variants; TPSMC39HE3_A/H is RoHS-compliant but not halogen-free certified.
What is the maximum clamping voltage of TPSMC39HE3_A/H under surge conditions?
The maximum clamping voltage VC of TPSMC39HE3_A/H is 53.9 V at peak pulse current IPPM = 27.8 A, measured with 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected circuitry remains within safe operating limits during standardized surge events.
Can TPSMC39HE3_A/H be used in reflow soldering processes without preconditioning?
Yes, TPSMC39HE3_A/H is rated MSL Level 1 per J-STD-020, with maximum peak reflow temperature of 260 °C. No floor life limitation or baking preconditioning is required prior to standard lead-free reflow, simplifying manufacturing for automotive and industrial PCB assembly.
TPSMC39HE3_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):
- 31.6V
- Voltage - Breakdown (Min):
- 35.1V
- Voltage - Clamping (Max) @ Ipp:
- 56.4V
- Current - Peak Pulse (10/1000µs):
- 26.6A
- 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)
TPSMC39HE3_A/H FAQ
1.How can I place an order for TPSMC39HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC39HE3_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 TPSMC39HE3_A/H reliable?
The price and inventory of TPSMC39HE3_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 TPSMC39HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC39HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC39HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC39HE3_A/H?
TPSMC39HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC39HE3_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 TPSMC39HE3_A/H?
For technical support, including TPSMC39HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC39HE3_A/H requirements.
6.How does Aetrix verify that TPSMC39HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC39HE3_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 TPSMC39HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC39HE3_A/H?
All TPSMC39HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC39HE3_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 TPSMC39HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC39HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC39HE3_A/H Tags
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