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Vishay General Semiconductor - Diodes Division TPSMB43HE3/52T
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- Part No.:
- TPSMB43HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB43HE3/52T.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,308
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Product details
Overview
TPSMB43HE3/52T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for high-reliability overvoltage protection of sensitive electronics. It features a 43 V breakdown voltage (VBR = 40.9–45.2 V at IT = 1 mA), 36.8 V stand-off voltage (VWM), 59.3 V clamping voltage (VC) at 10.1 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 and sensor line protection.
For engineers reviewing the TPSMB43HE3/52T datasheet, TPSMB43HE3/52T pinout, TPSMB43HE3/52T application, or TPSMB43HE3/52T equivalent, this page delivers verified electrical specs, SMB (DO-214AA) package details, AEC-Q101 qualification status, clamping performance under surge conditions, and direct alternatives for automotive-grade circuit protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance across temperature. Its unidirectional polarity and 10.1 A peak pulse current rating (IPPM) at 59.3 V clamping enable robust suppression of inductive switching transients on 24 V/36 V automotive systems.
The device is rated for 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), meets MSL Level 1 per J-STD-020, and supports lead-free reflow up to 260 °C. Its 0.092 %/°C temperature coefficient of VBR ensures predictable voltage drift over -65 °C to +185 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V at IT = 1 mA - defines precise voltage threshold where clamping initiates |
| VWM | 36.8 V - maximum continuous reverse working voltage before leakage rises significantly |
| VC @ IPPM | 59.3 V at 10.1 A (10/1000 µs) - actual clamped voltage seen by protected IC during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability without failure under standardized waveform |
| IFSM | 75 A - withstands single 8.3 ms half-sine surge common in automotive load-dump events |
| TJ max. | +185 °C - enables operation in under-hood environments and high-power industrial enclosures |
| αT | 0.092 %/°C - quantifies VBR drift with temperature; critical for precision clamp margining |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-indicating band, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VWM |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standard |
| 185 °C junction rating | Enables placement near heat sources (e.g., power converters, motor drivers) without derating |
| 600 W 10/1000 µs pulse rating | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and ISO 16750-2 load-dump immunity requirements |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs, MCUs, and CAN transceivers during transients |
| MSL Level 1, 260 °C reflow compatible | Eliminates moisture sensitivity concerns and supports standard SMT assembly without baking |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in body control modules against load-dump transients up to 35 V and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and chassis ground to clamp surges before they reach DC/DC regulators and microcontrollers. Use Value: Withstands 75 A IFSM and maintains VC ≤ 59.3 V, ensuring downstream 36 V-rated components remain within safe operating area. |
Use Scenario: Shielding analog and digital signal lines (e.g., LIN, PWM, thermistor inputs) in factory automation sensors from ESD and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before trace inductance amplifies voltage spikes. Use Value: 10.1 A IPPM and 59.3 V VC prevent latch-up or gate oxide damage in precision op-amps and ADC front-ends. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding primary-side input of AC/DC adapters and PoE injectors against lightning-induced surges on 48 V telecom rails. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of bridge rectifiers and bulk capacitors to absorb energy before it propagates into SMPS controllers. Use Value: 600 W PPPM and 185 °C TJ rating allow reliable operation in sealed, convection-cooled enclosures without thermal derating. |
Use Scenario: Protecting gate drivers and logic-level MOSFETs in smart appliance motor inverters from back-EMF spikes during commutation. IC Role / Device Role / Timing Role: TVS placed across motor phase outputs or driver supply pins to clamp inductive flyback voltage exceeding VDS ratings. Use Value: Fast response time and 0.092 %/°C αT ensure consistent clamping margin across ambient temperatures from -40 °C to +85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | Same VBR (40.9–45.2 V), but lower PPPM = 400 W; SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use | Select when space-constrained and surge energy is <400 W; verify thermal margin in PCB layout |
| SMCJ43A | Higher PPPM = 1500 W; same VBR and VC; larger SMC (DO-214AB) package | Overqualified for 600 W needs; requires more board area and higher mounting pad copper | Choose only if future-proofing for higher surge standards (e.g., ISO 16750-2 Class IV) or parallel redundancy is planned |
Compared with SMAJ43A and SMCJ43A, the TPSMB43HE3/52T delivers optimal balance of 600 W surge handling, AEC-Q101 compliance, SMB footprint, and 185 °C operation - making it the preferred choice for cost-sensitive, thermally demanding automotive and industrial designs where both reliability and board space matter.
Availability
TPSMB43HE3/52T is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMB43HE3/52T 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, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS platform, engineered specifically for high-temperature stability and repeatable clamping performance in harsh-environment applications such as engine control, ADAS, and industrial automation.
FAQ
What is the clamping voltage of the TPSMB43HE3/52T under a 10/1000 µs surge?
The TPSMB43HE3/52T has a maximum clamping voltage (VC) of 59.3 V at 10.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per JEDEC test conditions and reflects the actual voltage imposed on protected circuitry during worst-case transient events. The TPSMB43HE3/52T maintains this clamping performance across its full operating temperature range due to its low temperature coefficient of 0.092 %/°C.
Is the TPSMB43HE3/52T qualified for automotive applications?
Yes, the TPSMB43HE3/52T is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3". It meets rigorous stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - making it suitable for under-hood and cabin electronics. The TPSMB43HE3/52T also supports lead-free reflow up to 260 °C and carries MSL Level 1 rating for uncompromised manufacturability.
What is the difference between TPSMB43HE3/52T and TPSMB43AHE3?
The "/52T" suffix in TPSMB43HE3/52T denotes a specific tape-and-reel packaging configuration (13-inch reel, 3200 units per reel) per Vishay's ordering nomenclature. Electrically and mechanically, TPSMB43HE3/52T is identical to TPSMB43AHE3 - both share the same VBR, VC, PPPM, package (SMB), and AEC-Q101 qualification. The core device is the TPSMB43A; HE3 indicates RoHS-compliant, AEC-Q101 qualified version.
Can the TPSMB43HE3/52T be used in bidirectional configurations?
No, the TPSMB43HE3/52T is unidirectional only, as explicitly stated in Vishay's datasheet. Its internal structure supports clamping only in reverse-bias mode - the cathode must be connected toward the protected line and anode to ground. For bidirectional protection (e.g., AC lines or data buses), a separate bidirectional TVS like SMBJ43CA or two unidirectional devices in series-opposed configuration would be required instead of the TPSMB43HE3/52T.
What is the maximum steady-state reverse leakage current of the TPSMB43HE3/52T at 36.8 V?
At VWM = 36.8 V and TA = 25 °C, the TPSMB43HE3/52T exhibits a maximum reverse leakage current (IR) of 1 µA. At elevated temperature (TJ = 150 °C), leakage increases to 5 µA - still well below typical thresholds that could affect low-power sensor bias networks or battery-backed circuits. This low leakage preserves signal integrity and minimizes standby power loss in always-on systems using the TPSMB43HE3/52T.
TPSMB43HE3/52T 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):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
TPSMB43HE3/52T FAQ
1.How can I place an order for TPSMB43HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB43HE3/52T 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 TPSMB43HE3/52T reliable?
The price and inventory of TPSMB43HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB43HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB43HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB43HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB43HE3/52T?
TPSMB43HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB43HE3/52T 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 TPSMB43HE3/52T?
For technical support, including TPSMB43HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB43HE3/52T requirements.
6.How does Aetrix verify that TPSMB43HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB43HE3/52T 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 TPSMB43HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB43HE3/52T?
All TPSMB43HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB43HE3/52T, 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 TPSMB43HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB43HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB43HE3/52T Tags
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