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Vishay General Semiconductor - Diodes Division TPSMB10AHE3/52T
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- Part No.:
- TPSMB10AHE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB10AHE3/52T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,665
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Product details
Overview
TPSMB10AHE3/52T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for clamping inductive switching surges and lightning-induced transients on power and signal lines. It features a 10.0 V breakdown voltage (VBR), 8.55 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 14.5 A peak pulse current (IPPM), and 41.4 V maximum clamping voltage (VC) - deployed in automotive sensor protection, industrial I/O interfaces, and DC power rail surge suppression.
For engineers reviewing the TPSMB10AHE3/52T datasheet, TPSMB10AHE3/52T pinout, TPSMB10AHE3/52T application, or TPSMB10AHE3/52T equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification, TJ = 185 °C operation, and verified clamping performance under 10/1000 µs surge conditions.
Technical Context
The TPSMB10AHE3/52T employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity during transient events. Its junction temperature rating of 185 °C enables stable operation in high-ambient environments such as engine control units and industrial motor drives.
Designed exclusively for unidirectional operation, it delivers fast response time (<1 ns) and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The device is qualified to AEC-Q101 and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 9.5 / 10.0 / 10.5 V - ensures reliable triggering above normal operating voltage while avoiding false clamping |
| VWM | 8.55 V - defines maximum continuous reverse working voltage before leakage exceeds 5 µA |
| VC @ IPPM | 41.4 V - limits downstream voltage stress during 14.5 A transient events (10/1000 µs) |
| PPPM | 600 W - supports robust surge immunity in automotive and industrial 12 V/24 V systems |
| TJ max. | 185 °C - enables placement near heat sources without derating in under-hood or enclosed industrial modules |
| IR @ VWM | 5 µA - minimizes standby power loss in battery-powered sensor nodes |
| αT | 0.064 %/°C - allows accurate VBR prediction across temperature for precision protection design |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode indicated by molded band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). RoHS-compliant, halogen-free option available (HM3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-referenced clamping node | Connected to protected line; conducts during overvoltage to shunt current to ground/anode rail |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping loop during transient |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against ISO 7637-2 Pulse 1/2a/5a in 12 V automotive systems |
| AEC-Q101 qualified (HE3 suffix) | Validates reliability for automotive electronics including ADAS sensors and body control modules |
| TJ = 185 °C capability | Supports mounting on hot PCB areas without thermal derating in engine management or power conversion |
| MSL Level 1, 260 °C peak reflow | Permits standard SMT assembly without moisture sensitivity handling or baking |
| Low clamping ratio (VC/VBR ≈ 4.14) | Reduces voltage overshoot margin required in downstream IC selection (e.g., MCU I/O tolerance) |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and ground to limit transient voltage before reaching sensitive input stages. Use Value: Prevents latch-up or permanent damage to transceiver ICs during ISO 16750-2 load dump events up to 35 V, leveraging 41.4 V clamping at 14.5 A. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils and solenoid drivers. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input lines, absorbing repetitive 600 W transients without degradation. Use Value: Maintains long-term reliability under industrial duty cycles (0.01 %) with no parameter drift after >1000 surges, validated per AEC-Q101. |
| DC Power Rail Surge Suppression | Consumer Device USB/Power Port |
Use Scenario: Clamping 12 V/24 V supply rails in motor drives and LED drivers subjected to inductive kickback. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to divert surge energy away from DC-DC controllers and gate drivers. Use Value: Limits rail overshoot to ≤41.4 V during 75 A surge (8.3 ms half-sine), preventing overvoltage shutdown or MOSFET avalanche failure. | Use Scenario: Secondary-level surge protection on 5 V USB VBUS and auxiliary power inputs in smart home hubs and portable chargers. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 8.55 V) clamping device placed upstream of USB PD controllers and charging ICs. Use Value: Blocks 1 kV ESD (IEC 61000-4-2) and 10/1000 µs surges while adding <1 nF capacitance - preserving signal integrity on high-speed data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Same SMB package, identical VBR (10.0 V), but rated for 600 W with 10/1000 µs waveform and not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Select SMBJ10A when AEC-Q101 is not required and cost optimization is prioritized |
| TPSMB10AHM3/52T | Identical electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (HM3 vs HE3) | Required for RoHS + halogen-free compliance mandates (e.g., EU automotive Tier 1 programs) | Choose TPSMB10AHM3/52T where halogen-free material specification is contractually enforced |
Compared with SMBJ10A and TPSMB10AHM3/52T, the TPSMB10AHE3/52T provides AEC-Q101 qualification with standard RoHS compliance - making it the default choice for automotive-grade designs requiring traceable, high-temperature-stable TVS protection without halogen-free constraints.
Availability
TPSMB10AHE3/52T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and DC power rail surge suppression requiring stable component supply, long-lifecycle support, and AEC-Q101 assurance.
Supply support for TPSMB10AHE3/52T 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 reliability, high-temperature operation, and automotive qualification.
The TPSMB series was engineered specifically for high-reliability transient suppression in harsh environments - targeting under-hood automotive, industrial automation, and telecom infrastructure where 185 °C junction operation and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance of the TPSMB10AHE3/52T?
The TPSMB10AHE3/52T has a specified breakdown voltage (VBR) range of 9.5 V (min) to 10.5 V (max) at 1 mA test current, with a nominal value of 10.0 V. This ±5 % tolerance ensures consistent clamping behavior across production lots while allowing design margin for worst-case overvoltage scenarios. The TPSMB10AHE3/52T maintains this specification across its full operating temperature range (-65 °C to +185 °C), supported by a temperature coefficient of 0.064 %/°C.
Is the TPSMB10AHE3/52T suitable for bidirectional transient protection?
No, the TPSMB10AHE3/52T is a unidirectional TVS diode and must be used with correct polarity - cathode connected to the line being protected, anode to reference ground. It does not provide symmetrical clamping for AC or bipolar transients. For bidirectional protection, a dedicated bidirectional part such as TPSMB10CAHE3/52T would be required. The TPSMB10AHE3/52T datasheet explicitly states "Available in unidirectional polarity only" and shows cathode band marking.
Does the TPSMB10AHE3/52T meet automotive qualification standards?
Yes, the TPSMB10AHE3/52T is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating suitability for automotive applications such as body electronics, infotainment, and ADAS sensor interfaces. The TPSMB10AHE3/52T operates reliably up to 185 °C junction temperature, exceeding typical automotive under-hood requirements.
What is the maximum clamping voltage of the TPSMB10AHE3/52T under surge conditions?
The TPSMB10AHE3/52T exhibits a maximum clamping voltage (VC) of 41.4 V at its rated peak pulse current (IPPM) of 14.5 A, tested with the standard 10/1000 µs waveform. This clamping level is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The TPSMB10AHE3/52T achieves this with low incremental surge resistance, ensuring predictable and repeatable protection performance in real-world surge conditions.
Can the TPSMB10AHE3/52T be used in high-humidity or outdoor environments?
Yes, the TPSMB10AHE3/52T is encapsulated in an SMB (DO-214AA) package with molding compound meeting UL 94 V-0 flammability rating and moisture sensitivity level (MSL) 1 - indicating excellent resistance to humidity, thermal shock, and environmental aging. Its passivated anisotropic rectifier structure enhances long-term stability in humid or thermally cycled conditions. The TPSMB10AHE3/52T is widely deployed in outdoor industrial sensors and automotive exterior modules where condensation and thermal cycling are common.
TPSMB10AHE3/52T 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):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 41.4A
- 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)
TPSMB10AHE3/52T FAQ
1.How can I place an order for TPSMB10AHE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB10AHE3/52T 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 TPSMB10AHE3/52T reliable?
The price and inventory of TPSMB10AHE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB10AHE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB10AHE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB10AHE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB10AHE3/52T?
TPSMB10AHE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB10AHE3/52T 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 TPSMB10AHE3/52T?
For technical support, including TPSMB10AHE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB10AHE3/52T requirements.
6.How does Aetrix verify that TPSMB10AHE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB10AHE3/52T 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 TPSMB10AHE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB10AHE3/52T?
All TPSMB10AHE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB10AHE3/52T, 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 TPSMB10AHE3/52T part is unused and in its original packaging.
Return procedure for TPSMB10AHE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB10AHE3/52T Tags
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