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Vishay General Semiconductor - Diodes Division TPSMB30AHE3_A/I
- Part No.:
- TPSMB30AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB30AHE3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,243
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Product details
Overview
TPSMB30AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. 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 maximum 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 - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMB30AHE3_A/I datasheet, TPSMB30AHE3_A/I pinout, TPSMB30AHE3_A/I application, or TPSMB30AHE3_A/I equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal derating curves, and direct alternative part comparisons for ESD/surge protection design-in.
Technical Context
The TPSMB30AHE3_A/I 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 maintains <3.5 V forward voltage at 50 A and meets J-STD-020 MSL Level 1 (260 °C reflow peak). The device is RoHS-compliant, halogen-free optional (HM3 suffix), and qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V at IT = 1 mA - defines reliable conduction onset under surge conditions |
| VWM | 25.6 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| VC @ IPPM | 41.4 V at 14.5 A - clamped voltage seen by protected circuit during 600 W transient |
| PPPM | 600 W (10/1000 µs waveform) - peak surge energy absorption capability |
| TJ max. | +185 °C - enables operation in engine control units and industrial motor drives |
| IFSM | 75 A (8.3 ms half-sine) - withstands repetitive load dump events without degradation |
| αT | 0.088 %/°C - temperature coefficient of VBR used to calculate breakdown shift over temperature |
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); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts transient energy to ground when VWM exceeded |
| Anode | Reference/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 under-hood use including temperature cycling, humidity bias, and mechanical shock |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| 185 °C junction capability | Supports placement near heat sources (e.g., power MOSFETs, DC-DC converters) without derating |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream ICs during transient events |
| 0.088 %/°C VBR tempco | Ensures predictable clamping threshold across -65 °C to +185 °C operating range |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 24 V CAN/LIN bus power inputs against ISO 7637-2 load dump pulses and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VBAT and GND, clamping transients before they reach LDOs or transceivers. Use Value: Withstands 75 A surge (8.3 ms) and clamps to ≤41.4 V, preserving 36 V-rated downstream components. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Standoff protection on 0–10 V or 4–20 mA output lines exposed to cable ESD and relay coil flyback. Use Value: 25.6 V VWM ensures no leakage during normal operation; 41.4 V VC prevents ADC saturation during ±8 kV contact ESD. |
| Consumer Power Adapter Input | Telecom DC Feeder Protection |
|
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters after primary-side regulation. IC Role / Device Role / Timing Role: Parallel-connected TVS on 20 V output rail to absorb residual switching spikes and surge coupling. Use Value: 600 W PPPM handles repetitive 10/1000 µs transients from nearby AC/DC converter noise without thermal runaway. |
Use Scenario: DC power feed protection in remote radio head (RRH) units powered via 48 V PoE-like infrastructure. IC Role / Device Role / Timing Role: Front-end clamping on -48 V input to prevent damage from induced lightning surges on long outdoor cables. Use Value: 185 °C TJ rating allows mounting directly on heatsink-equipped DC/DC modules without derating. |
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 (28.5–31.5 V), but lower PPPM = 400 W; SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select SMAJ30A only for cost-sensitive consumer designs where 400 W suffices and automotive qualification is unnecessary. |
| SMCJ30A | Higher PPPM = 1500 W; same VBR and VC; larger SMC (DO-214AB) package | Used where higher surge margin is required (e.g., 10/1000 µs >20 A), but requires more PCB area | Choose SMCJ30A when system-level testing shows >14.5 A peak surge exposure or when extended lifetime under repeated stress is critical. |
Compared with SMAJ30A and SMCJ30A, the TPSMB30AHE3_A/I delivers optimal balance of 600 W surge capacity, AEC-Q101 compliance, SMB footprint, and +185 °C operation - making it the preferred choice for space-constrained automotive and industrial power protection where reliability and thermal robustness are mandatory.
Availability
TPSMB30AHE3_A/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, and telecom DC feeder systems requiring stable component supply, AEC-Q101 qualification, and high-temperature resilience.
Supply support for TPSMB30AHE3_A/I 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 performance, and automotive-grade validation.
The TPSMB series was engineered specifically for robust transient suppression in harsh environments - targeting automotive ECUs, industrial controls, and telecom infrastructure where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the TPSMB30AHE3_A/I under standard test conditions?
The TPSMB30AHE3_A/I has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 14.5 A using a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and ANSI/IEEE C62.35 standards and represents the upper voltage limit imposed on the protected circuit during surge events. The TPSMB30AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPSMB30AHE3_A/I qualified for automotive applications?
Yes, the TPSMB30AHE3_A/I is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock - making the TPSMB30AHE3_A/I suitable for under-hood and body-control module applications.
What does the "HE3" and "_A/I" suffix mean in TPSMB30AHE3_A/I?
The "HE3" suffix indicates RoHS-compliance and AEC-Q101 qualification; "_A" denotes the revision level (Revision A), and "/I" specifies packaging in 13-inch plastic tape and reel with 3200 units per reel. This packaging format supports automated SMT placement and is distinct from the 7-inch reel option (/H). The TPSMB30AHE3_A/I is fully compatible with standard SMB pick-and-place equipment.
How does the TPSMB30AHE3_A/I compare to bidirectional TVS diodes in surge protection?
The TPSMB30AHE3_A/I is unidirectional and optimized for DC power line protection where reverse voltage is blocked by system design - offering lower leakage and tighter VBR tolerance than bidirectional equivalents. Unlike bidirectional TVS devices, the TPSMB30AHE3_A/I does not conduct during normal negative excursions, making it ideal for 24 V automotive rails and regulated DC supplies where polarity is fixed.
Can the TPSMB30AHE3_A/I be used in parallel for higher surge current handling?
No - the TPSMB30AHE3_A/I is not recommended for parallel operation due to parameter variation (e.g., VBR tolerance ±5 %) that causes current imbalance and potential thermal runaway. For higher surge ratings, Vishay specifies the SMCJ30A (1500 W) in the same voltage grade. System-level testing is required before any parallel configuration; the TPSMB30AHE3_A/I is characterized and qualified as a single-device solution.
TPSMB30AHE3_A/I 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
TPSMB30AHE3_A/I FAQ
1.How can I place an order for TPSMB30AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB30AHE3_A/I 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 TPSMB30AHE3_A/I reliable?
The price and inventory of TPSMB30AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB30AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB30AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB30AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB30AHE3_A/I?
TPSMB30AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB30AHE3_A/I 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 TPSMB30AHE3_A/I?
For technical support, including TPSMB30AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB30AHE3_A/I requirements.
6.How does Aetrix verify that TPSMB30AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB30AHE3_A/I 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 TPSMB30AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB30AHE3_A/I?
All TPSMB30AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB30AHE3_A/I, 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 TPSMB30AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMB30AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB30AHE3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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