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Vishay General Semiconductor - Diodes Division TPSMB7.5AHE3/52T
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- Part No.:
- TPSMB7.5AHE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB7.5AHE3/52T.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,004
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Product details
Overview
TPSMB7.5AHE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 11.3 V maximum clamping voltage at 53.1 A peak current, and operates up to +185 °C junction temperature - enabling use in automotive engine control units and industrial motor drives.
For engineers reviewing the TPSMB7.5AHE3/52T datasheet, TPSMB7.5AHE3/52T pinout, TPSMB7.5AHE3/52T application, or TPSMB7.5AHE3/52T equivalent, this page delivers verified electrical specs, SMB (DO-214AA) package dimensions, cathode/anode terminal mapping, AEC-Q101 qualification status, and real-world protection use cases for high-reliability 12 V system designs.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for stable clamping under repetitive surge stress. Its 185 °C maximum junction temperature and MSL Level 1 rating support reflow soldering at 260 °C peak and operation in under-hood automotive environments.
The device delivers 53.1 A peak pulse current (IPPM) with 11.3 V clamping voltage (VC) at rated 600 W, achieving low incremental surge resistance and sub-nanosecond response time - critical for protecting MOSFET gates and microcontroller I/O pins against fast-rising transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 / 7.50 / 7.88 V at 10 mA - ensures reliable turn-on before downstream IC damage threshold |
| VWM | 6.4 V - blocks normal 5–6 V rail noise while allowing conduction above safe margin |
| VC @ IPPM | 11.3 V at 53.1 A - limits voltage seen by protected load during 10/1000 µs surge |
| PPPM | 600 W - sustains single-pulse energy without degradation in automotive load-dump scenarios |
| IFSM | 75 A (8.3 ms half-sine) - withstands motor commutation surges without bond-wire failure |
| TJ max. | +185 °C - enables placement near heat sources in engine control modules |
| Polarity | Unidirectional - protects DC rails only; requires correct cathode orientation toward positive rail |
Pinout & Package
TPSMB7.5AHE3/52T uses the SMB (DO-214AA) surface-mount package: 4.57 mm × 3.94 mm body, 2.20 mm cathode band width, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Polarity is marked by a color band denoting the cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink | Connected to protected line (e.g., 12 V rail); conducts when transient exceeds VBR |
| Anode | Reference/return path | Connected to ground or lower-potential node; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22 standards |
| Junction passivation | Reduces leakage drift and improves long-term stability under thermal stress in industrial power supplies |
| MSL Level 1 | Enables single-reflow assembly without moisture-related popcorning at 260 °C peak temperature |
| Low VC/VBR ratio (1.51) | Minimizes clamping overshoot relative to breakdown, improving protection margin for 5 V logic interfaces |
| 0.052 %/°C tempco | Ensures predictable VBR shift across -65 °C to +185 °C, simplifying thermal derating in engine compartments |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from alternator load dump and solenoid coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 12 V supply and local LDO input. Use Value: Limits transient voltage to ≤11.3 V during 600 W surges, preventing latch-up in 5 V tolerant peripherals. |
Use Scenario: Shields 24 V digital input optocoupler front-end from field wiring inductive kick and ESD events. IC Role / Device Role / Timing Role: Primary overvoltage protection stage upstream of series current-limiting resistor. Use Value: Clamps 1 kV/1.2 µs surge to <12 V within 1 ns, preserving optocoupler CTR and isolation integrity. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Input Stage |
Use Scenario: Guards BLDC driver IC power pins against back-EMF from brushed DC motors in HVAC blowers. IC Role / Device Role / Timing Role: Parallel-connected TVS on 12 V gate drive rail adjacent to MOSFET source. Use Value: Absorbs 75 A single-half-sine surge (8.3 ms), avoiding MOSFET avalanche failure during stall conditions. |
Use Scenario: Suppresses AC line surge coupling into 48 V telecom rectifier output bus. IC Role / Device Role / Timing Role: Secondary protection after MOV, placed directly at DC output connector. Use Value: Provides precise 11.3 V clamping with <1 µA leakage at 6.4 V, minimizing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A | Same SMB package, 7.5 V VBR, but rated for 600 W with higher VC = 12.0 V and no AEC-Q101 qualification | Lacks automotive qualification; suitable for commercial/industrial use only | Select SMBJ7.5A only if AEC-Q101 compliance is not required and higher clamping voltage is acceptable |
| 1.5SMC7.5A | Higher-power SMC package (1500 W), same VBR range, VC = 12.9 V, TJ max = 175 °C, non-AEC-Q101 | Requires larger PCB footprint; used where higher single-pulse energy handling is needed | Choose 1.5SMC7.5A when surge energy exceeds 600 W capability and board space allows SMC outline |
Compared with SMBJ7.5A and 1.5SMC7.5A, the TPSMB7.5AHE3/52T uniquely combines AEC-Q101 qualification, 185 °C operation, and tight 11.3 V clamping in the compact SMB footprint - making it the only choice for space-constrained, high-temperature automotive modules requiring zero-derating up to +150 °C ambient.
Availability
TPSMB7.5AHE3/52T is available at Aetrix Electronics and suitable for automotive ECU designs, industrial PLC input protection, and telecom power supply surge hardening requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for TPSMB7.5AHE3/52T 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The TPSMB series was engineered specifically for AEC-Q101-compliant transient suppression in high-temperature environments - targeting engine control, transmission control, and ADAS power domains where traditional TVS diodes fail prematurely.
FAQ
What is the maximum clamping voltage of the TPSMB7.5AHE3/52T at its rated peak pulse current?
The TPSMB7.5AHE3/52T has a maximum clamping voltage (VC) of 11.3 V at its specified peak pulse current (IPPM) of 53.1 A under a 10/1000 µs waveform. This value is measured per JEDEC standard test conditions and ensures downstream components see no more than 11.3 V during surge events. The TPSMB7.5AHE3/52T maintains this clamping performance across its full operating temperature range.
Is the TPSMB7.5AHE3/52T qualified for automotive applications?
Yes, the TPSMB7.5AHE3/52T is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing - validating its suitability for under-hood automotive systems. The TPSMB7.5AHE3/52T meets these requirements without derating up to +150 °C ambient.
What does the "HE3" suffix indicate in TPSMB7.5AHE3/52T?
The "HE3" suffix in TPSMB7.5AHE3/52T identifies a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. It also passes JESD 201 Class 2 whisker testing. The "52T" denotes tape-and-reel packaging in 13-inch reels with 3200 units per reel - a standard logistics configuration for automated SMT assembly. The TPSMB7.5AHE3/52T is fully traceable to Vishay's certified manufacturing lot data.
Can the TPSMB7.5AHE3/52T be used in bidirectional protection circuits?
No, the TPSMB7.5AHE3/52T is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts surge current from cathode to anode and blocks reverse voltage up to VWM = 6.4 V. For bidirectional protection (e.g., AC line or differential signal lines), a separate bidirectional TVS such as SMBJ7.5CA must be used. Using the TPSMB7.5AHE3/52T in reverse-biased configurations risks permanent breakdown and failure.
What is the thermal derating behavior of the TPSMB7.5AHE3/52T above 25 °C ambient?
The TPSMB7.5AHE3/52T follows Vishay's standard derating curve (Fig. 2 in datasheet 88406): peak pulse power decreases linearly from 600 W at 25 °C to ~300 W at 125 °C ambient, with full capability restored at junction temperatures up to +185 °C. Derating is based on initial junction temperature, not ambient alone. The TPSMB7.5AHE3/52T supports continuous operation at +150 °C ambient when mounted on 5 mm × 5 mm copper pads per terminal, as validated in thermal characterization.
TPSMB7.5AHE3/52T 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53.1A
- 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)
TPSMB7.5AHE3/52T FAQ
1.How can I place an order for TPSMB7.5AHE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB7.5AHE3/52T 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 TPSMB7.5AHE3/52T reliable?
The price and inventory of TPSMB7.5AHE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB7.5AHE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB7.5AHE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB7.5AHE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB7.5AHE3/52T?
TPSMB7.5AHE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB7.5AHE3/52T 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 TPSMB7.5AHE3/52T?
For technical support, including TPSMB7.5AHE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB7.5AHE3/52T requirements.
6.How does Aetrix verify that TPSMB7.5AHE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB7.5AHE3/52T 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 TPSMB7.5AHE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB7.5AHE3/52T?
All TPSMB7.5AHE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB7.5AHE3/52T, 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 TPSMB7.5AHE3/52T part is unused and in its original packaging.
Return procedure for TPSMB7.5AHE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB7.5AHE3/52T Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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