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Vishay General Semiconductor - Diodes Division TPSMB30HE3/52T
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- Part No.:
- TPSMB30HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30HE3/52T.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,833
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Product details
Overview
TPSMB30HE3/52T 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 30 V breakdown voltage (VBR = 28.5–31.5 V at IT = 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V clamping voltage (VC) at 14.5 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power line and sensor interface protection.
For engineers reviewing the TPSMB30HE3/52T datasheet, TPSMB30HE3/52T pinout, TPSMB30HE3/52T application, or TPSMB30HE3/52T equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal derating curves, and real-world design guidance for ESD/surge protection in automotive ECUs and industrial control modules.
Technical Context
The TPSMB30HE3/52T employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable clamping performance under high-temperature stress (TJ = 185 °C). Its unidirectional polarity and low incremental surge resistance ensure fast response (<1 ns) and minimal voltage overshoot during 10/1000 µs transients.
Rated for 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), it meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C. The device is AEC-Q101 qualified (HE3 suffix), RoHS-compliant, and halogen-free optional (HM3), targeting automotive-grade reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 V / 30.0 V / 31.5 V at 1 mA - defines precise voltage threshold where avalanche conduction begins, critical for accurate system-level overvoltage trip point alignment |
| VWM | 25.6 V - maximum continuous reverse operating voltage; must exceed normal circuit operating voltage to prevent leakage-induced power loss or false triggering |
| VC @ IPPM | 41.4 V at 14.5 A - clamped voltage during 10/1000 µs surge; determines protected IC's maximum stress level and dictates required margin for downstream component survival |
| PPPM | 600 W - peak pulse power handling capacity; enables robust suppression of ISO 7637-2 Pulse 1/2a/5a transients without degradation |
| TJ max. | +185 °C - extended junction temperature rating supports under-hood automotive placement and long-term reliability in thermally constrained PCB layouts |
| IFSM | 75 A - surge current withstand capability for 8.3 ms half-sine wave; validates resilience against load dump events in 12 V vehicle systems |
| Polarity | Unidirectional - protects only against positive transients relative to cathode; requires correct orientation in series with power rail or signal line |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1, UL 94 V-0 molding compound. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., 12 V supply or CAN_H); conducts surge current to ground when VLINE exceeds VBR |
| Anode | Reference/ground return path | Must be tied directly to low-impedance system ground plane; trace inductance here directly impacts clamping effectiveness |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive use per stress test requirements including HTOL, TC, UHAST, and ESD - eliminates need for additional qualification effort in Tier-1 designs |
| 185 °C maximum junction temperature | Enables operation in engine bay, transmission control, or ADAS modules without thermal derating penalties or forced cooling |
| 600 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Level IV immunity requirements for 12 V systems, supporting robustness against coupled transients from relay switching or alternator load dump |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs, microcontrollers, or CAN transceivers during surge events |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without moisture sensitivity concerns or baking requirements, reducing manufacturing cost and cycle time |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply rails in body control modules (BCM) and lighting drivers from ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery input and DC/DC converter input stage to clamp transients before they reach regulation circuitry. Use Value: Withstands 75 A surge current and clamps to 41.4 V, ensuring downstream LDOs and MCUs remain within absolute maximum ratings during 12 V system disturbances. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure or temperature sensors in factory automation equipment exposed to motor drive noise. IC Role / Device Role / Timing Role: TVS placed across sensor output terminals to shunt EFT bursts (IEC 61000-4-4) and lightning-induced surges on long cable runs. Use Value: 25.6 V stand-off voltage avoids interference with nominal 24 V loop supply, while 41.4 V clamping prevents op-amp saturation or DAC damage during 1 kV/50 Ω surge events. |
| Automotive CAN Bus Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Secondary protection on CAN_H/CAN_L lines in infotainment head units, supplementing primary common-mode choke and ESD diodes. IC Role / Device Role / Timing Role: Unidirectional TVS connected from CAN_H to ground and CAN_L to ground to absorb differential-mode surges exceeding transceiver limits. Use Value: Fast <1 ns response and low VC preserve signal integrity during ISO 11898-2 EMC testing, preventing bit errors or bus lock-up during 10/1000 µs transients. |
Use Scenario: Overvoltage suppression on H-bridge gate drive outputs in smart home appliance BLDC motor controllers subjected to back-EMF spikes. IC Role / Device Role / Timing Role: TVS mounted at motor driver IC output pins to clamp inductive kickback from stalled or reversing motors. Use Value: 600 W pulse rating and 185 °C operation allow sustained protection in enclosed, thermally limited enclosures without thermal runaway or parameter drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR range (28.5–31.5 V), but lower PPPM = 400 W and TJ max. = +150 °C; not AEC-Q101 qualified | Limited to consumer/industrial use; unsuitable for automotive under-hood deployment or ISO 7637-2 Level IV compliance | Select SMAJ30A only for cost-sensitive, non-automotive applications with lower surge energy requirements and ambient temperatures ≤ +125 °C. |
| SMCJ30A | Higher PPPM = 1500 W, same VBR, but larger SMC (DO-214AB) package; AEC-Q101 available only in HM3 variant | Requires larger PCB footprint and higher mounting pad area; better suited for high-energy transients like lightning (IEC 61000-4-5) | Choose SMCJ30A when system-level testing reveals insufficient margin with 600 W rating, or when protecting high-power motor drives with >100 A surge exposure. |
Compared with SMAJ30A and SMCJ30A, the TPSMB30HE3/52T delivers optimal balance of automotive qualification, compact SMB footprint, 600 W surge capacity, and +185 °C operation - making it the preferred choice for space-constrained, thermally aggressive automotive and industrial control applications requiring certified reliability.
Availability
TPSMB30HE3/52T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer appliance motor drive circuits requiring stable component supply, AEC-Q101 compliance, and high-temperature surge resilience.
Supply support for TPSMB30HE3/52T 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, efficiency, and application-specific optimization.
The TPSMB30HE3/52T belongs to Vishay's PAR® (Protection Against Transients) family of surface-mount TVS diodes engineered specifically for high-temperature, high-reliability automotive and industrial surge protection - delivering consistent clamping performance across extended thermal and lifetime stress conditions.
FAQ
What is the exact breakdown voltage range for TPSMB30HE3/52T?
The TPSMB30HE3/52T has a guaranteed breakdown voltage (VBR) range of 28.5 V to 31.5 V at test current IT = 1 mA, per Vishay Document Number 88406. This specification ensures predictable turn-on behavior during overvoltage events and allows designers to verify margin against protected IC absolute maximum ratings. The nominal VBR is 30.0 V, and the device exhibits a typical temperature coefficient of +0.088 %/°C.
Is TPSMB30HE3/52T AEC-Q101 qualified?
Yes, TPSMB30HE3/52T is AEC-Q101 qualified, as confirmed by its HE3 suffix and explicit listing in Vishay's qualification documentation. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TC), unbiased highly accelerated stress test (UHAST), and ESD (HBM/MM). The qualification applies specifically to the HE3 variant and supports use in automotive powertrain, chassis, and body electronics.
What is the clamping voltage of TPSMB30HE3/52T at its rated peak pulse current?
The TPSMB30HE3/52T clamps to a maximum of 41.4 V at its rated peak pulse current (IPPM) of 14.5 A under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay Document 88406 and defines the upper voltage limit imposed on protected circuitry during surge events - a critical parameter for ensuring downstream components remain within safe operating area.
Does TPSMB30HE3/52T support lead-free reflow soldering?
Yes, TPSMB30HE3/52T is rated for lead-free reflow with a maximum peak temperature of 260 °C, meeting J-STD-020 MSL Level 1 requirements. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and the device passes JESD 201 Class 2 whisker testing. No pre-baking is required prior to assembly, simplifying manufacturing flow.
What package type does TPSMB30HE3/52T use, and what are its key mechanical features?
TPSMB30HE3/52T uses the SMB (DO-214AA) surface-mount package, measuring 4.57 mm × 3.94 mm × 2.20 mm. Key features include UL 94 V-0 flammability-rated molding compound, cathode identification via molded band, and copper pad layout recommendations (0.2" × 0.2") for optimal thermal and surge performance. The package is optimized for automated pick-and-place and high-volume SMT assembly.
TPSMB30HE3/52T 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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 13.8A
- 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)
TPSMB30HE3/52T FAQ
1.How can I place an order for TPSMB30HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30HE3/52T 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 TPSMB30HE3/52T reliable?
The price and inventory of TPSMB30HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB30HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB30HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30HE3/52T?
TPSMB30HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30HE3/52T 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 TPSMB30HE3/52T?
For technical support, including TPSMB30HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30HE3/52T requirements.
6.How does Aetrix verify that TPSMB30HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB30HE3/52T 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 TPSMB30HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB30HE3/52T?
All TPSMB30HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30HE3/52T, 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 TPSMB30HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB30HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30HE3/52T Tags
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