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Vishay General Semiconductor - Diodes Division TPSMB43AHE3/5BT
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- Part No.:
- TPSMB43AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB43AHE3/5BT.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,652
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Product details
Overview
TPSMB43AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching and lightning-induced transients on power rails and signal lines. It delivers 600 W peak pulse power (10/1000 µs), clamps at 59.3 V under 10.1 A surge, and operates up to +185 °C junction temperature-making it suitable for automotive engine control units, industrial motor drives, and telecom power supply protection.
For engineers reviewing the TPSMB43AHE3/5BT datasheet, TPSMB43AHE3/5BT pinout, TPSMB43AHE3/5BT application, or TPSMB43AHE3/5BT equivalent, key selection criteria include its 43 V breakdown voltage (VBR = 40.9–45.2 V), 36.8 V stand-off voltage (VWM), 10.1 A peak pulse current (IPPM), unidirectional polarity, and SMB (DO-214AA) package with cathode band marking.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity under high-energy transients. Its 185 °C maximum junction temperature and AEC-Q101 qualification support operation in under-hood automotive environments and high-reliability industrial systems.
The device exhibits a typical VBR temperature coefficient of +0.092 %/°C and maintains stable clamping performance across -65 °C to +185 °C. It meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker resistance requirements, confirming suitability for lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 40.9–45.2 V at 1 mA - defines minimum voltage at which clamping initiates; ensures reliable overvoltage detection above 36.8 V operating rail |
| Stand-off Voltage VWM | 36.8 V - maximum continuous reverse working voltage; sets safe DC operating margin below breakdown |
| Peak Pulse Power PPPM | 600 W (10/1000 µs waveform) - quantifies transient energy absorption capacity without failure |
| Clamping Voltage VC | 59.3 V at 10.1 A - actual voltage seen by protected circuit during worst-case surge; determines downstream component stress |
| Peak Pulse Current IPPM | 10.1 A - maximum non-repetitive surge current the device can safely divert |
| Junction Temperature Range | -65 °C to +185 °C - enables deployment in extreme ambient conditions including automotive under-hood and industrial enclosures |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.205" × 0.220" footprint and cathode band polarity marking |
Pinout & Package
TPSMB43AHE3/5BT is housed in an SMB (DO-214AA) plastic package with two terminals: anode and cathode. Polarity is marked by a color band at the cathode end. The package is RoHS-compliant, halogen-free (per HM3 suffix logic), and rated UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V and 36 V rails |
| TJ = 185 °C capability | Supports uninterrupted operation in high-temperature zones such as engine compartments and sealed industrial controllers |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| MSL Level 1, 260 °C peak reflow | Permits single-pass lead-free soldering without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Protecting 36 V battery-fed ECUs and body control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and ground to limit transient excursions to ≤59.3 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and CAN transceivers exposed to ISO 7637-2 Pulse 5a surges. |
Use Scenario: Safeguarding gate drivers and position sensors in variable-frequency AC motor inverters. IC Role / Device Role / Timing Role: Surge suppression on 24 V auxiliary supply and encoder feedback lines subject to commutation noise. Use Value: Maintains signal integrity and prevents false triggering in Hall-effect sensors and isolated gate drivers during high-di/dt switching. |
| Telecom DC Power Input | Consumer Appliance Power Supply |
|
Use Scenario: Clamping induced surges on -48 V or +24 V telecom rectifier outputs feeding base station radios. IC Role / Device Role / Timing Role: Primary overvoltage protection element on DC input before DC/DC converters and PMICs. Use Value: Limits voltage excursion to 59.3 V during lightning-induced surges, preserving downstream silicon with 65 V absolute max ratings. |
Use Scenario: Protecting smart home hub power inputs from mains-coupled transients during relay switching or HVAC compressor startup. IC Role / Device Role / Timing Role: Secondary-level TVS on 12 V or 24 V internal distribution rails feeding MCU and wireless SoCs. Use Value: Ensures >100,000-cycle reliability in consumer-grade products without derating or thermal shutdown events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | Same VBR range (40.9–45.2 V), but lower PPPM (400 W); SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients (e.g., IEC 61000-4-4); unsuitable for load dump or high-current inductive spikes | Select SMAJ43A only if space-constrained and surge energy is confirmed ≤400 W |
| SMCJ43A | Higher PPPM (1500 W); same VBR, larger SMC (DO-214AB) package; higher IPPM (34.6 A) | Overqualified for 600 W use cases; requires larger PCB area and higher thermal relief design effort | Choose SMCJ43A when protecting 48 V systems or where multi-pulse endurance beyond 600 W is required |
Compared with SMAJ43A and SMCJ43A, the TPSMB43AHE3/5BT provides optimal balance of 600 W surge handling, SMB footprint compatibility, and AEC-Q101 qualification-making it the preferred choice for cost-sensitive, thermally constrained automotive and industrial 36 V rail protection.
Availability
TPSMB43AHE3/5BT is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive control, and telecom DC power input applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 compliance.
Supply support for TPSMB43AHE3/5BT 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, MOSFETs, and protection devices with emphasis on high-reliability, high-temperature, and automotive-qualified solutions.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor family, engineered specifically for robust, repeatable clamping in harsh environments including under-hood automotive, factory automation, and outdoor telecom infrastructure.
FAQ
What is the exact breakdown voltage range for TPSMB43AHE3/5BT?
The TPSMB43AHE3/5BT has a guaranteed breakdown voltage (VBR) range of 40.9 V to 45.2 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent clamping initiation across production lots and temperature extremes, and is verified per the Vishay datasheet revision 23-Jan-2024 (Document Number: 88406). The nominal VBR is 43.0 V.
Is TPSMB43AHE3/5BT AEC-Q101 qualified?
Yes, TPSMB43AHE3/5BT is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, validated for automotive-grade reliability including high-temperature reverse bias (HTRB), temperature cycling, and ESD testing. This qualification is documented in the official Vishay datasheet for the TPSMB6.8A–TPSMB43A family.
What does the "5BT" suffix indicate in TPSMB43AHE3/5BT?
The "5BT" suffix in TPSMB43AHE3/5BT specifies the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This matches the ordering code format defined in the Vishay datasheet's "Ordering Information" section, where "I" denotes 13″ reels and "5BT" is the corresponding tape-and-reel variant identifier for the HE3 version.
Can TPSMB43AHE3/5BT be used in bidirectional configurations?
No, TPSMB43AHE3/5BT is unidirectional only, as confirmed in the Vishay datasheet features section. It protects against positive transients on the cathode side relative to anode (i.e., anode grounded). For bidirectional protection, a separate device such as the TPSMB43CA or a back-to-back unidirectional pair would be required-not the TPSMB43AHE3/5BT itself.
What is the maximum clamping voltage of TPSMB43AHE3/5BT under surge conditions?
The maximum clamping voltage (VC) of TPSMB43AHE3/5BT is 59.3 V at 10.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and represents the highest voltage the protected circuit will experience during a full-rated surge event, directly limiting stress on downstream components like MCUs and transceivers.
TPSMB43AHE3/5BT 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- 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)
TPSMB43AHE3/5BT FAQ
1.How can I place an order for TPSMB43AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB43AHE3/5BT 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 TPSMB43AHE3/5BT reliable?
The price and inventory of TPSMB43AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB43AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB43AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB43AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB43AHE3/5BT?
TPSMB43AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB43AHE3/5BT 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 TPSMB43AHE3/5BT?
For technical support, including TPSMB43AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB43AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB43AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB43AHE3/5BT 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 TPSMB43AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB43AHE3/5BT?
All TPSMB43AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB43AHE3/5BT, 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 TPSMB43AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB43AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB43AHE3/5BT Tags
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