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Vishay General Semiconductor - Diodes Division TPSMB8.2HE3/52T
- Part No.:
- TPSMB8.2HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB8.2HE3/52T.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,308
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Product details
Overview
TPSMB8.2HE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching transients and ESD events on power rails and signal lines. It features a 8.2 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 49.6 V clamping voltage at 49.6 A peak surge current, and operates up to +185 °C junction temperature - ideal for automotive power supply protection.
For engineers reviewing the TPSMB8.2HE3/52T datasheet, TPSMB8.2HE3/52T pinout, TPSMB8.2HE3/52T application, or TPSMB8.2HE3/52T equivalent, this page delivers verified electrical specs, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal derating curves, and direct alternatives for circuit-level ESD/surge hardening in high-reliability designs.
Technical Context
The TPSMB8.2HE3/52T uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity under repetitive 10/1000 µs transients. Its unidirectional polarity and 7.02 V working voltage enable robust overvoltage blocking in DC power paths without reverse leakage degradation at elevated temperatures.
Rated for TJ = –65 °C to +185 °C and qualified per AEC-Q101, the device supports automotive-grade reliability with MSL Level 1 moisture sensitivity and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 - critical for reflow-soldered engine control units and ADAS sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 V / 8.20 V / 8.61 V at 10 mA - defines precise voltage threshold where avalanche conduction begins, enabling accurate system-level overvoltage trip point setting |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 100 µA; ensures no false triggering during normal 5–6 V rail operation |
| VC @ IPPM | 49.6 V at 49.6 A - clamped voltage during worst-case 600 W transient; determines downstream IC survivability margin (e.g., 48 V-rated CAN transceivers) |
| PPPM | 600 W (10/1000 µs waveform) - peak surge energy handling capacity; supports ISO 7637-2 Pulse 1/2a/5a compliance in 12 V automotive systems |
| IFSM | 75 A (8.3 ms half-sine) - forward surge rating; validates robustness against load-dump events in alternator-connected circuits |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, DC-DC inductors) without thermal derating penalties |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline with 5.0 mm × 5.0 mm copper pad requirement; compatible with automated pick-and-place and reflow |
Pinout & Package
TPSMB8.2HE3/52T is housed in an SMB (DO-214AA) surface-mount package with cathode indicated by a color band. The device has two terminals: anode and cathode, mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V rail); conducts avalanche current to ground during overvoltage, requiring low-inductance grounding path |
| Anode | Reference/ground return | Typically tied to system ground plane; must maintain < 10 nH inductance to preserve clamping speed and prevent voltage overshoot |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - eliminates need for additional qualification effort in Tier-1 BOMs |
| 185 °C junction rating | Enables operation in under-hood environments (e.g., battery management, motor drivers) without thermal shutdown or parameter drift |
| 600 W peak pulse power | Withstands ISO 16750-2 load dump surges up to 35 V for 400 ms and ISO 7637-2 Pulse 5a (75 V, 100 ms) when properly laid out |
| Low clamping ratio (VC/VBR ≈ 6.05) | Minimizes overvoltage stress on downstream ICs - e.g., keeps 5 V logic rails below 50 V during 1 kV EFT bursts |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without popcorn cracking or delamination - reduces manufacturing yield loss |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Clamping |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control modules (ECMs) against load dump and inductive kickback from fuel injectors or relays. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers to limit transient excursions to safe levels. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V MCUs by clamping transients to ≤49.6 V while maintaining <100 µA leakage at nominal 12 V operation. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs exposed to relay-coil switching noise. IC Role / Device Role / Timing Role: Signal-line TVS on 0–10 V or 4–20 mA sensor outputs to absorb fast-rising EFT bursts (IEC 61000-4-4) and electrostatic discharges. Use Value: Maintains signal integrity with <0.5 pF junction capacitance at zero bias, avoiding bandwidth reduction in 10 kHz sensor bandwidth applications. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Clamp |
Use Scenario: Securing 48 V PoE-powered Ethernet switches against lightning-induced surges on DC input rails. IC Role / Device Role / Timing Role: Secondary-stage TVS after primary MOV/GDT protection, providing precise low-clamp backup for IEEE 802.3bt-compliant power circuits. Use Value: Delivers 600 W surge handling with 49.6 V clamping - ensuring PoE PD controllers (e.g., TPS2375) remain within absolute maximum ratings during Category 4 surge tests. | Use Scenario: Adding robustness to USB-C power delivery ports in portable monitors against accidental 20 V adapter misconnection or hot-plug transients. IC Role / Device Role / Timing Role: Standoff protector between VBUS and internal buck converter input, rated for 7.02 V continuous operation and 49.6 V transient clamping. Use Value: Survives >1000 ESD strikes per IEC 61000-4-2 Level 4 (±15 kV contact) without parametric shift - validated via AEC-Q101 human-body model testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VBR (7.6–8.4 V), same SMB package, 400 W PPPM, not AEC-Q101 qualified | Limited to industrial/commercial use; insufficient for automotive load dump immunity due to lower power rating | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is unnecessary |
| TPSMB8.2AHM3/52T | Identical electrical specs; halogen-free molding compound and whisker-resistant plating per JESD 201 Class 2 | Required for RoHS+halogen-free compliance in EU automotive programs (e.g., VW TL 813) | Choose for strict environmental compliance mandates where HE3 suffix does not meet material declarations |
Compared with SMAJ8.0A and TPSMB8.2AHM3/52T, the TPSMB8.2HE3/52T uniquely balances AEC-Q101 qualification, 600 W surge capability, and RoHS compliance - making it the default choice for production automotive ECUs where both reliability and regulatory alignment are mandatory.
Availability
TPSMB8.2HE3/52T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface clamping, and telecom DC input protection requiring stable component supply across multi-year production cycles.
Supply support for TPSMB8.2HE3/52T 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 and automotive-grade performance.
The TPSMB series was engineered specifically for high-temperature, high-surge automotive and industrial applications - delivering AEC-Q101-qualified transient suppression in compact SMB packages with extended junction temperature capability.
FAQ
What is the exact breakdown voltage range for TPSMB8.2HE3/52T at 10 mA test current?
The TPSMB8.2HE3/52T has a guaranteed breakdown voltage range of 7.79 V (minimum) to 8.61 V (maximum) at 10 mA test current, with a typical value of 8.20 V. This tight VBR tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in safety-critical automotive systems. All values are measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 23-Jan-2024.
Is TPSMB8.2HE3/52T qualified to AEC-Q101, and what does that mean for automotive use?
Yes, TPSMB8.2HE3/52T is AEC-Q101 qualified - verified through accelerated stress testing including HTGB, HTRB, TCT, and ESD per JESD22 standards. This qualification confirms its suitability for automotive powertrain, chassis, and body electronics where long-term reliability under thermal cycling, humidity, and vibration is mandatory. The TPSMB8.2HE3/52T meets these requirements with its 185 °C junction rating and MSL Level 1 reflow compatibility.
What is the clamping voltage of TPSMB8.2HE3/52T under a 600 W 10/1000 µs surge?
The clamping voltage (VC) of TPSMB8.2HE3/52T is 49.6 V at its rated peak pulse current of 49.6 A - corresponding to the 600 W 10/1000 µs waveform. This value is measured per Fig. 1 and Table 1 in the Vishay datasheet and represents the maximum voltage seen by downstream components during worst-case transient events. It directly determines whether protected ICs remain within their absolute maximum voltage ratings.
Can TPSMB8.2HE3/52T be used in bidirectional configurations?
No, TPSMB8.2HE3/52T is unidirectional only - explicitly stated in the Vishay datasheet under FEATURES. It conducts avalanche current only when cathode voltage exceeds anode voltage by ≥VBR. For AC or bipolar signal line protection, a dedicated bidirectional TVS (e.g., TPSMB8.2CA) or back-to-back unidirectional pair would be required. Using TPSMB8.2HE3/52T in reverse-biased AC applications risks permanent failure.
What is the maximum steady-state reverse leakage current for TPSMB8.2HE3/52T at 7.02 V and 150 °C?
At VWM = 7.02 V and TJ = 150 °C, the maximum reverse leakage current (ID) for TPSMB8.2HE3/52T is 200 µA - specified in the Electrical Characteristics table on page 2 of the Vishay datasheet. This elevated leakage at high temperature is fully characterized and accounted for in thermal design margins; it remains well below thresholds that would cause system-level power budget violations in typical automotive applications.
TPSMB8.2HE3/52T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 48A
- 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)
TPSMB8.2HE3/52T FAQ
1.How can I place an order for TPSMB8.2HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB8.2HE3/52T 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 TPSMB8.2HE3/52T reliable?
The price and inventory of TPSMB8.2HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB8.2HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB8.2HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB8.2HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB8.2HE3/52T?
TPSMB8.2HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB8.2HE3/52T 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 TPSMB8.2HE3/52T?
For technical support, including TPSMB8.2HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB8.2HE3/52T requirements.
6.How does Aetrix verify that TPSMB8.2HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB8.2HE3/52T 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 TPSMB8.2HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB8.2HE3/52T?
All TPSMB8.2HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB8.2HE3/52T, 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 TPSMB8.2HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB8.2HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB8.2HE3/52T Tags
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