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Taiwan Semiconductor Corporation P6SMB30AH
- Part No.:
- P6SMB30AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AH.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,439
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Product details
Overview
P6SMB30AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage 28.5–31.5 V, clamping voltage 41.4 V at 15 A, and stand-off voltage 25.6 V. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB30AH datasheet, P6SMB30AH pinout, P6SMB30AH application, or P6SMB30AH equivalent, key selection criteria include unidirectional polarity, 15 A peak pulse current capability, 41.4 V clamping performance at rated surge, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6SMB30AH uses a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to VBR min) and low leakage (<1 µA at 25.6 V). Its thermal design supports 150 °C maximum junction temperature with RθJC = 10 °C/W and RθJA = 55 °C/W.
It operates as a single-die, unidirectional TVS device with cathode band marking, compliant with JESD201 Class 2 whisker resistance and moisture sensitivity level 1 (J-STD-020). Electrical characteristics are specified at TA = 25 °C with 1.0 mA test current for VBR measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - ensures reliable triggering above 25.6 V stand-off without false conduction |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 41.4 V at 15 A - clamping voltage limits downstream IC stress during 10/1000 µs surges |
| PPPSM | 600 W - peak pulse power rating for non-repetitive 10/1000 µs transients |
| IPPM | 15 A - maximum peak pulse current the device safely clamps without failure |
| TJ max | 150 °C - enables operation in under-hood automotive environments and high-ambient industrial settings |
| Leakage @ VWM | <1 µA - minimizes standby power loss in always-on systems |
Pinout & Package
DO-214AA (SMB) surface-mount package: 2-terminal, single-die unidirectional configuration with molded epoxy case meeting UL 94V-0, matte tin-plated leads, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or low-side return path in unidirectional protection topology |
| Cathode (marked) | Transient current sink during reverse-biased clamping | Connected to protected line (e.g., 24 V rail); absorbs surge energy into ground when VLINE exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal cycling and humidity stress |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Meets full automotive transient immunity requirements for 12 V and 24 V systems |
| Fast response time <1.0 ps | Clamps ESD and fast-edge transients before sensitive downstream logic or analog circuitry is damaged |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling prior to assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in vehicle body control modules against load dump and inductive switching spikes. IC Role / Device Role: Unidirectional TVS placed between 24 V rail and chassis ground to clamp transients exceeding 25.6 V. Use Value: Limits voltage seen by MCU power inputs to ≤41.4 V during 15 A surges, preventing latch-up or permanent damage per ISO 7637-2 Pulse 2b. | Use Scenario: Safeguarding analog front-end inputs of industrial pressure/temperature sensors connected to long cables. IC Role / Device Role: TVS mounted at connector interface to shunt induced EFT and lightning-induced surges to ground. Use Value: Clamps fast transients (≤1.0 ps rise) before they propagate into precision ADC input stages, preserving signal integrity and measurement accuracy. |
| LED Driver Output Protection | DC-DC Converter Input Protection |
Use Scenario: Shielding constant-current LED driver outputs from back-EMF generated by hot-plug or cable disconnect events. IC Role / Device Role: Unidirectional TVS on output rail to absorb inductive kickback from LED string wiring. Use Value: Withstands 600 W peak pulses and clamps to 41.4 V, preventing overvoltage damage to MOSFET switches and current-sense amplifiers. | Use Scenario: Guarding buck converter input against voltage spikes from upstream battery or power distribution networks. IC Role / Device Role: Primary transient suppression stage before input capacitor and controller IC. Use Value: Low 25.6 V stand-off allows integration on 24 V input rails while maintaining <1 µA leakage to avoid quiescent current penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | Same DO-214AA package, identical VBR range (28.5–31.5 V), but rated for 600 W with VC = 48.4 V at 12.4 A (higher clamping voltage) | Higher clamping degrades protection margin for 3.3 V/5 V logic interfaces downstream of protected rail | Select P6SMB30AH when lower clamping voltage (41.4 V) is required to meet tighter system-level overvoltage thresholds. |
| 1.5SMC33A | DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm), same VBR, VC = 49.9 V at 12.0 A | Requires PCB layout change; not suitable for space-constrained automotive modules | Choose P6SMB30AH for SMB-compatible designs where board area and automated placement compatibility are critical. |
Compared with SMBJ30A and 1.5SMC33A, the P6SMB30AH delivers superior clamping performance (41.4 V vs. ≥48.4 V) in the smallest standardized SMB footprint, making it optimal for compact, high-reliability 24 V automotive and industrial power protection where voltage margin and layout density are constrained.
Availability
P6SMB30AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED lighting drivers, and DC-DC converter input protection requiring stable component supply and AEC-Q101-compliant transient suppression.
Supply support for P6SMB30AH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 qualification capabilities.
The P6SMB30AH belongs to TSC's P6SMBx(A)H series of 600 W surface-mount TVS diodes, engineered specifically for robust, cost-effective transient protection in automotive and harsh-environment industrial power systems.
FAQ
What is the polarity configuration of the P6SMB30AH?
The P6SMB30AH is a unidirectional TVS diode with cathode band marking. It conducts only during reverse-biased overvoltage events - i.e., when the cathode side exceeds the anode side by ≥28.5 V. This configuration is ideal for protecting positive supply rails referenced to ground, unlike bidirectional variants (e.g., P6SMB30CAH) used in AC or floating signal lines. The P6SMB30AH must be oriented with cathode toward the protected line.
Does the P6SMB30AH meet automotive qualification standards?
Yes, the P6SMB30AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. It is rated for operation from −55 °C to +150 °C, features JESD201 Class 2 whisker resistance, and carries moisture sensitivity level 1 - all essential for under-hood and body-control module deployment. These qualifications are verified per Taiwan Semiconductor's official A2102 specification release.
What is the clamping voltage of the P6SMB30AH and how is it measured?
The P6SMB30AH has a maximum clamping voltage (VC) of 41.4 V at 15 A peak pulse current (IPPM), tested using the standardized 10/1000 µs double-exponential surge waveform. This value represents the upper limit of voltage imposed on the protected circuit during worst-case transient events. Lower clamping than alternatives like SMBJ30A (48.4 V) gives the P6SMB30AH tighter overvoltage margin for downstream 3.3 V or 5 V logic interfaces.
Can the P6SMB30AH be used in bidirectional signal protection?
No - the P6SMB30AH is strictly unidirectional and unsuitable for AC-coupled or bipolar signal lines. For bidirectional protection (e.g., CAN bus, RS-485, or audio lines), use the P6SMB30CAH variant, which provides symmetrical clamping in both directions with identical VBR and VC specifications. Substituting P6SMB30AH in such applications risks permanent forward conduction and failure during negative transients.
What is the thermal resistance profile of the P6SMB30AH and why does it matter?
The P6SMB30AH has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient (RθJA) of 55 °C/W, measured under standard JEDEC conditions. These values determine how effectively heat from surge dissipation transfers to PCB copper or heatsinking. In high-duty-cycle surge environments, exceeding 150 °C junction temperature causes parametric shift or failure - so proper pad design (≥25 mm² copper pour) is essential to maintain reliability. The P6SMB30AH's low RθJC supports robust thermal coupling in compact layouts.
P6SMB30AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- 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):
- 15A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB30AH FAQ
1.How can I place an order for P6SMB30AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AH 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 P6SMB30AH reliable?
The price and inventory of P6SMB30AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30AH is usually 5 days.
3.What payment methods are accepted for P6SMB30AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AH?
P6SMB30AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AH 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 P6SMB30AH?
For technical support, including P6SMB30AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AH requirements.
6.How does Aetrix verify that P6SMB30AH is sourced from the original manufacturer or authorized distributors?
All P6SMB30AH 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 P6SMB30AH meets industry standards.
7.What is the process for return or replacement of P6SMB30AH?
All P6SMB30AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AH, 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 P6SMB30AH part is unused and in its original packaging.
Return procedure for P6SMB30AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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