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Vishay General Semiconductor - Diodes Division TPSMB43AHE3_A/H
- Part No.:
- TPSMB43AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB43AHE3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,166
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Product details
Overview
TPSMB43AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive and lightning-induced transients on power rails and signal lines. It features a 43 V breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 10.1 A peak pulse current (IPPM), and 59.3 V clamping voltage (VC) - deployed in automotive power supply protection, industrial sensor interfaces, and telecom DC input stages.
For engineers reviewing the TPSMB43AHE3_A/H datasheet, TPSMB43AHE3_A/H pinout, TPSMB43AHE3_A/H application, or TPSMB43AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, SMB (DO-214AA) package compatibility with high-reliability PCB layouts, and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging passivated anisotropic rectifier technology to deliver stable breakdown behavior across temperature. Its 0.092 %/°C VBR temperature coefficient ensures predictable voltage threshold shift from −65 °C to +185 °C, critical for under-hood automotive environments.
The device sustains 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits low incremental surge resistance, enabling rapid energy absorption without thermal runaway. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V - defines precise clamping initiation threshold at 1 mA test current |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 59.3 V - clamped voltage during 10.1 A 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 600 W - peak transient power dissipation capability under standardized waveform |
| TJ max. | +185 °C - enables operation in high-temperature engine control units and power converters |
| IFSM | 75 A - withstands single-cycle inrush surges common in 12 V/24 V automotive systems |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.205" × 0.220" footprint |
Pinout & Package
TPSMB43AHE3_A/H uses the SMB (DO-214AA) package: a two-terminal, surface-mount plastic case with cathode band marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VIN > VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST |
| 185 °C junction rating | Supports placement near heat-generating components in engine control modules and ADAS ECUs |
| 600 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Level 4 surge events without degradation in industrial power supplies |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream MOSFETs, MCUs, and CAN transceivers |
| MSL Level 1 (260 °C peak reflow) | Enables standard lead-free SMT assembly without pre-baking or special handling |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 36.8 V. Use Value: Limits peak voltage to 59.3 V during 10.1 A transients, preventing damage to 40 V-rated DC-DC controllers and microcontrollers in TPSMB43AHE3_A/H-equipped designs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair to shunt fast transients while preserving signal integrity. Use Value: Delivers sub-1 ns response time and <1 μA leakage at 36.8 V, ensuring minimal impact on 24-bit ADC accuracy and long-term calibration stability. |
| Telecom DC Power Interface | Consumer Power Adapter Output Stage |
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges on Ethernet cables and DC feeds. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input rail, coordinated with upstream MOVs and secondary-side regulators. Use Value: Withstands 600 W pulses and maintains VC ≤ 59.3 V, meeting GR-1089-CORE Level 3 immunity requirements for central office equipment. |
Use Scenario: Secondary-side overvoltage suppression in USB PD and QC-compliant wall adapters. IC Role / Device Role / Timing Role: Final-stage clamping device after synchronous rectification, protecting USB-C port controllers and Type-C CC logic. Use Value: RoHS-compliant and halogen-free (HE3 suffix), supports global regulatory compliance while delivering 59.3 V clamping at 10.1 A for UL 62368-1 fault condition testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | Same VBR (40.9–45.2 V), lower PPPM = 400 W, SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 Pulse 5a | Select TPSMB43AHE3_A/H when 600 W surge handling and AEC-Q101 qualification are mandatory |
| SMCJ43A | Same VBR range, higher PPPM = 1500 W, larger SMC (DO-214AB) package | Requires more PCB area; over-spec'd for space-constrained automotive modules | Choose TPSMB43AHE3_A/H where SMB footprint and 600 W capability balance cost, size, and performance |
Compared with SMAJ43A and SMCJ43A, TPSMB43AHE3_A/H delivers optimal trade-off between surge robustness (600 W), automotive qualification (AEC-Q101), and compact SMB packaging - making it the preferred choice for mid-tier transient protection in ECU power domains and industrial I/O modules.
Availability
TPSMB43AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface boards, and telecom DC power supplies requiring stable component supply, AEC-Q101 compliance, and consistent SMB package sourcing.
Supply support for TPSMB43AHE3_A/H 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 and high-temperature performance.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) platform, engineered specifically for high-stability transient suppression in harsh-environment applications including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of TPSMB43AHE3_A/H at its rated peak pulse current?
The TPSMB43AHE3_A/H has a maximum clamping voltage (VC) of 59.3 V when subjected to its rated 10.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures predictable overvoltage limiting for downstream circuitry in TPSMB43AHE3_A/H-protected designs.
Is TPSMB43AHE3_A/H qualified for automotive use?
Yes, TPSMB43AHE3_A/H is AEC-Q101 qualified and manufactured with HE3 suffix - indicating RoHS compliance, high-temperature reliability up to 185 °C junction temperature, and full qualification for automotive powertrain, body, and infotainment systems. The "HE3" designation confirms its automotive-grade status per Vishay's ordering nomenclature.
What does the "_A/H" suffix mean in TPSMB43AHE3_A/H?
The "_A/H" suffix in TPSMB43AHE3_A/H indicates revision level "A" and packaging in 7-inch diameter plastic tape and reel (package code H), with a base quantity of 750 units per reel. This format aligns with standard SMT assembly requirements and ensures traceability and handling consistency for automated placement of TPSMB43AHE3_A/H in high-volume production.
How does TPSMB43AHE3_A/H compare to bidirectional TVS diodes?
TPSMB43AHE3_A/H is unidirectional and optimized for DC power line protection where polarity is fixed - offering lower leakage (<1 μA at 36.8 V) and tighter VBR tolerance than equivalent bidirectional parts. It is not suitable for AC or floating signal lines; for those, a bidirectional variant like TPSMB43CA would be required instead of TPSMB43AHE3_A/H.
What is the thermal derating behavior of TPSMB43AHE3_A/H above 25 °C ambient?
TPSMB43AHE3_A/H follows Vishay's standard derating curve (Fig. 2): peak pulse power decreases linearly above 25 °C ambient, reaching ~50 % of rated 600 W at 125 °C case temperature. Derating is based on junction temperature limits (TJ ≤ 185 °C), and actual performance depends on PCB copper pad area (0.2" × 0.2" recommended) in TPSMB43AHE3_A/H layouts.
TPSMB43AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (SMB)
TPSMB43AHE3_A/H FAQ
1.How can I place an order for TPSMB43AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB43AHE3_A/H 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_A/H reliable?
The price and inventory of TPSMB43AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB43AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB43AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB43AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB43AHE3_A/H?
TPSMB43AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB43AHE3_A/H 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_A/H?
For technical support, including TPSMB43AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB43AHE3_A/H requirements.
6.How does Aetrix verify that TPSMB43AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB43AHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB43AHE3_A/H?
All TPSMB43AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB43AHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for TPSMB43AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB43AHE3_A/H Tags
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