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Vishay General Semiconductor - Diodes Division TPSMB27AHE3_A/I
- Part No.:
- TPSMB27AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB27AHE3_A/I.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
TPSMB27AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 27 V breakdown voltage (VBR = 25.7–28.4 V at IT = 1 mA), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 16 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMB27AHE3_A/I datasheet, TPSMB27AHE3_A/I pinout, TPSMB27AHE3_A/I application, or TPSMB27AHE3_A/I equivalent, this page delivers verified electrical specs, thermal limits, AEC-Q101 qualification status, SMB package dimensions, and real-world use cases in automotive ECUs, industrial sensor interfaces, and DC power input stages.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge conditions. Its unidirectional polarity enables robust forward-biased surge handling on positive-going transients, with low incremental surge resistance ensuring minimal voltage overshoot during fast 10/1000 µs pulses.
The device is rated for 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and maintains reliable operation across –65 °C to +185 °C junction temperature range. Its MSL Level 1 rating (260 °C peak reflow) and matte tin-plated leads support high-yield automated assembly in automotive-grade production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 25.7–28.4 V at 1 mA test current - defines precise voltage threshold where clamping initiates |
| Stand-off Voltage VWM | 23.1 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| Clamping Voltage VC | 37.5 V at 16 A IPPM - limits transient voltage seen by downstream ICs during surge events |
| Peak Pulse Power PPPM | 600 W (10/1000 µs waveform) - sustains high-energy surges without failure |
| Junction Temperature Range | –65 °C to +185 °C - supports under-hood automotive and industrial high-temp environments |
| AEC-Q101 Qualified | Yes - validated for automotive reliability per stress test requirements |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" x 0.130" footprint |
Pinout & Package
TPSMB27AHE3_A/I is housed in an SMB (DO-214AA) plastic package with cathode-indicating band. The two-terminal device has no internal circuitry beyond the PN junction; polarity is unidirectional with cathode terminal marked by a band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE > VBR |
| Anode | Reference / return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against ISO 7637-2 Pulse 1/2a/5a-level transients in 12 V automotive systems |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power converters) without derating concerns |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity handling requirements for SMT assembly |
| AEC-Q101 qualified (HE3 suffix) | Confirms compliance with automotive-grade reliability testing including HTGB, HTRB, and TCT |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected MOSFETs or microcontrollers during clamping |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting 12 V supply rails in BCMs from load-dump and inductive switching transients generated by relays and solenoids. IC Role / Device Role: Primary overvoltage clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤37.5 V, preventing damage to 40 V-rated buck controllers and enabling robust operation per ISO 16750-2. | Use Scenario: Safeguarding 24 V digital input channels of programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role: Front-end transient suppressor on each optocoupler input channel before series current-limiting resistor. Use Value: Clamps 1 kV/500 A surge (10/1000 µs) to <38 V, preserving optocoupler CTR and enabling IEC 61000-4-5 Level 3 compliance. |
| Automotive Infotainment Power Supply | Telecom Remote Radio Unit (RRU) DC Feed |
Use Scenario: Shielding USB-C PD controller and display power management ICs from battery line transients during engine cranking. IC Role / Device Role: Secondary clamping device downstream of primary fuse and LC filter, placed adjacent to PMIC input pins. Use Value: Maintains VWM = 23.1 V margin above nominal 20 V infotainment rail, ensuring zero leakage during normal operation while responding in <1 ns. | Use Scenario: Protecting 48 V DC power feed lines to remote radio units from lightning-induced surges on outdoor telecom infrastructure. IC Role / Device Role: Parallel-connected TVS on DC input before DC-DC isolation stage, sized for 600 W pulse handling. Use Value: Withstands repeated 10/1000 µs surges up to 16 A without degradation, supporting Telcordia GR-1089-CORE Level 3 surge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W), same SMB package, VBR = 29.1–32.2 V, VC = 45.4 V at 8.8 A | Less robust for high-energy automotive load dump; suitable only for lower-tier surge classes | Select SMAJ28A only if system-level testing confirms 400 W rating suffices and higher clamping voltage is acceptable |
| SMCJ28A | Higher PPPM (1500 W), larger SMC (DO-214AB) package, VBR = 29.1–32.2 V, VC = 45.4 V at 33 A | Requires PCB layout change due to larger footprint; over-spec'd for space-constrained automotive modules | Choose SMCJ28A only when 1500 W surge immunity is mandated and board area permits SMC package |
Compared with SMAJ28A and SMCJ28A, TPSMB27AHE3_A/I delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, 37.5 V clamping, and AEC-Q101 qualification - making it the preferred choice for space-limited, thermally demanding automotive and industrial power rail protection.
Availability
TPSMB27AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom remote radio units requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMB27AHE3_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 reliability and high-temperature performance.
The TPSMB series was engineered specifically for automotive and industrial transient suppression, targeting AEC-Q101 compliance, 185 °C operation, and robust 10/1000 µs surge handling in compact SMB packages.
FAQ
What is the exact breakdown voltage range for TPSMB27AHE3_A/I?
The TPSMB27AHE3_A/I has a guaranteed breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent clamping behavior across production lots and supports design margining for automotive 12 V and 24 V systems where precise overvoltage thresholds are critical.
Is TPSMB27AHE3_A/I qualified for automotive applications?
Yes, TPSMB27AHE3_A/I is AEC-Q101 qualified - confirmed by Vishay's documentation and indicated by the "HE3" suffix. It meets stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), making it suitable for under-hood and chassis-mounted automotive modules requiring certified reliability.
What is the maximum clamping voltage of TPSMB27AHE3_A/I and at what current is it specified?
The maximum clamping voltage (VC) of TPSMB27AHE3_A/I is 37.5 V, measured at 16 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value reflects worst-case voltage seen by protected circuitry during surge events and is critical for verifying compatibility with downstream IC voltage ratings.
Does TPSMB27AHE3_A/I have a bidirectional configuration option?
No, TPSMB27AHE3_A/I is unidirectional only, as explicitly stated in the Vishay datasheet. Bidirectional variants are not offered in the TPSMB family; for AC or bipolar transient protection, engineers must select alternate families such as the TPSTMB series or discrete back-to-back configurations.
What packaging and reel options are available for TPSMB27AHE3_A/I?
TPSMB27AHE3_A/I ships in 13" diameter plastic tape and reel format with a base quantity of 3200 pieces per reel. The "I" in the part number denotes this specific delivery mode, distinguishing it from the 7" reel variant (suffix "H"). Both HE3 variants are RoHS-compliant and AEC-Q101 qualified.
TPSMB27AHE3_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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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 (SMB)
TPSMB27AHE3_A/I FAQ
1.How can I place an order for TPSMB27AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB27AHE3_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 TPSMB27AHE3_A/I reliable?
The price and inventory of TPSMB27AHE3_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 TPSMB27AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB27AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB27AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB27AHE3_A/I?
TPSMB27AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB27AHE3_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 TPSMB27AHE3_A/I?
For technical support, including TPSMB27AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB27AHE3_A/I requirements.
6.How does Aetrix verify that TPSMB27AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB27AHE3_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 TPSMB27AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB27AHE3_A/I?
All TPSMB27AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB27AHE3_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 TPSMB27AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMB27AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB27AHE3_A/I Tags
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