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Vishay General Semiconductor - Diodes Division TPSMB39A-1BHE3_A/I
- Part No.:
- TPSMB39A-1BHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB39A-1BHE3_A/I.pdf
- Description:
- TVS DIODE 600W SMB DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPSMB39A-1BHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching and lightning-induced transients on power and signal lines. It features a 39 V breakdown voltage (VBR = 37.1–41.0 V at IT = 1 mA), 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage (VC) at 11.1 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature.
For engineers reviewing the TPSMB39A-1BHE3_A/I datasheet, TPSMB39A-1BHE3_A/I pinout, TPSMB39A-1BHE3_A/I application, or TPSMB39A-1BHE3_A/I equivalent, this page delivers verified electrical specs, SMB (DO-214AA) package details, automotive-grade reliability data (AEC-Q101 qualified), thermal derating curves, and real-world protection use cases for industrial sensor interfaces and automotive power rails.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its unidirectional polarity enables robust forward-biased clamping during positive transients while maintaining low leakage (<1 µA at VWM) across its full operating range.
The device is rated for repetitive 10/1000 µs surge waveforms at 0.01% duty cycle and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Its TJ max of +185 °C supports under-hood automotive applications where sustained thermal stress exceeds standard commercial-grade components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 33.3 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 53.9 V at 11.1 A - actual clamped voltage seen by protected IC during worst-case surge |
| PPPM | 600 W (10/1000 µs) - energy-handling capacity for transient suppression without failure |
| TJ max | +185 °C - enables operation in high-ambient environments like engine control units |
| Polarity | Unidirectional - protects against positive-going transients only; cathode band marks polarity |
| IFSM | 75 A (8.3 ms half-sine) - surge current rating for non-repetitive fault events |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, MSL Level 1 (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode of internal PN junction | Connected to protected line; conducts during positive overvoltage to clamp to VC |
| Anode | Cathode of internal PN junction | Typically tied to ground or lower-potential rail; completes clamping path during surge |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR drift <0.091 %/°C and long-term reliability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and UHAST |
| Low clamping ratio (VC/VBR) | 1.38 - minimizes overvoltage margin between clamping and breakdown, improving system-level protection margin |
| Fast response time | <1 ns - reacts before most microcontroller I/O pins or MOSFET gates can be damaged by ESD or inductive kick |
| MSL Level 1 compliance | Enables direct placement into high-volume SMT lines without dry-pack or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 33.3 V. Use Value: Withstands 600 W pulses and operates reliably at +185 °C, meeting AEC-Q101 requirements for under-hood deployment. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before reaching precision amplifier inputs. Use Value: Sub-1 ns response and 53.9 V clamping limit ensure downstream ADCs and transceivers remain within absolute maximum ratings. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to prevent damage to downstream USB-PD controllers or battery management ICs. Use Value: 33.3 V VWM allows compatibility with 24 V nominal outputs while providing 53.9 V clamping headroom. | Use Scenario: Protecting PoE-powered devices (IEEE 802.3af/at) from induced surges on 48 V DC feed lines. IC Role / Device Role / Timing Role: Unidirectional TVS on each DC pair to clamp common-mode transients without disrupting steady-state power delivery. Use Value: 600 W rating handles telecom-grade surge standards (IEC 61000-4-5 Level 4), and RoHS-compliant HE3 suffix ensures regulatory compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | VBR = 38–42.1 V; VC = 58.1 V at 10.3 A; same SMB package and unidirectional polarity | Higher clamping voltage (+4.2 V) reduces protection margin for 3.3 V or 5 V logic rails | Select when higher VWM (36 V) is required and clamping margin permits |
| TPSMB36AHE3_A/I | VBR = 34.2–37.8 V; VC = 49.9 V at 12 A; identical construction, AEC-Q101, HE3 suffix | Lower clamping voltage improves protection for 3.3 V systems but may false-trigger near 33.3 V nominal rails | Prefer for tighter clamping needs where VWM margin >3.5 V is acceptable |
Compared with SMBJ36A and TPSMB36AHE3_A/I, the TPSMB39A-1BHE3_A/I offers optimal balance of 33.3 V standoff and 53.9 V clamping for 24–36 V industrial and automotive power domains-delivering higher surge immunity than TPSMB36A while avoiding false triggering risks of lower-VWM alternatives.
Availability
TPSMB39A-1BHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom power feed circuits requiring stable component supply with AEC-Q101 qualification and high-temperature reliability.
Supply support for TPSMB39A-1BHE3_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, high-temperature, and automotive-qualified solutions.
The TPSMB series belongs to Vishay's PAR® family of surface-mount TVS diodes engineered specifically for robust transient suppression in harsh environments-including under-hood automotive, industrial automation, and infrastructure equipment-where thermal stability and AEC-Q101 compliance are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMB39A-1BHE3_A/I?
The TPSMB39A-1BHE3_A/I has a guaranteed breakdown voltage (VBR) range of 37.1 V to 41.0 V at a test current of 1 mA, per Vishay's datasheet revision 23-Jan-2024 (Document Number: 88406). This specification is measured after applying the square-wave pulse for 300 µs and reflects the minimum and maximum values across production lots. The typical value is 39.0 V, and the temperature coefficient is +0.091 %/°C.
Is TPSMB39A-1BHE3_A/I AEC-Q101 qualified?
Yes, the TPSMB39A-1BHE3_A/I is AEC-Q101 qualified. As confirmed in the Vishay datasheet, all base P/NHE3 parts-including TPSMB39A-1BHE3_A/I-are explicitly marked as AEC-Q101 qualified. This qualification covers stress tests such as high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST), making it suitable for automotive applications like body control modules and powertrain subsystems.
What does the "HE3" suffix mean in TPSMB39A-1BHE3_A/I?
The "HE3" suffix in TPSMB39A-1BHE3_A/I indicates that the part is RoHS-compliant and AEC-Q101 qualified. Per Vishay's ordering information, "Base P/NHE3_X" denotes RoHS-compliant and AEC-Q101 qualified versions, where "_X" is the revision code (here, "A/I" specifies tape-and-reel packaging: 13-inch reel, 3200 units). The "HE3" also confirms compliance with JESD 201 Class 2 whisker testing and J-STD-002 solderability standards.
What is the clamping voltage of TPSMB39A-1BHE3_A/I at its rated peak pulse current?
The TPSMB39A-1BHE3_A/I has a maximum clamping voltage (VC) of 53.9 V at its rated peak pulse current (IPPM) of 11.1 A, tested with a 10/1000 µs waveform. This value represents the upper limit of voltage imposed on the protected circuit during a worst-case transient event. It is derived from the device's dynamic impedance and ensures downstream components remain within safe operating limits when exposed to standardized surge conditions.
Can TPSMB39A-1BHE3_A/I replace TPSMB36AHE3_A/I in an existing design?
TPSMB39A-1BHE3_A/I is not a direct replacement for TPSMB36AHE3_A/I due to differences in key parameters: VWM increases from 30.8 V to 33.3 V, VBR shifts from 34.2–37.8 V to 37.1–41.0 V, and VC rises from 49.9 V to 53.9 V. While both share the same SMB package and AEC-Q101 qualification, the higher clamping voltage of TPSMB39A-1BHE3_A/I may reduce protection margin for 3.3 V or 5 V logic. Review system-level surge thresholds before substitution.
TPSMB39A-1BHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 11.1A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
TPSMB39A-1BHE3_A/I FAQ
1.How can I place an order for TPSMB39A-1BHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB39A-1BHE3_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 TPSMB39A-1BHE3_A/I reliable?
The price and inventory of TPSMB39A-1BHE3_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 TPSMB39A-1BHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB39A-1BHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB39A-1BHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB39A-1BHE3_A/I?
TPSMB39A-1BHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB39A-1BHE3_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 TPSMB39A-1BHE3_A/I?
For technical support, including TPSMB39A-1BHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB39A-1BHE3_A/I requirements.
6.How does Aetrix verify that TPSMB39A-1BHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB39A-1BHE3_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 TPSMB39A-1BHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB39A-1BHE3_A/I?
All TPSMB39A-1BHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB39A-1BHE3_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 TPSMB39A-1BHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMB39A-1BHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB39A-1BHE3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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