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Taiwan Semiconductor Corporation P6SMB15AH
- Part No.:
- P6SMB15AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15AH.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,308
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Product details
Overview
P6SMB15AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 14.3–15.8 V, clamping voltage of 21.2 V at 29 A peak pulse current, and stand-off voltage of 12.8 V - designed for automotive-grade ESD and load-dump protection in power rails and signal lines.
For engineers reviewing the P6SMB15AH datasheet, P6SMB15AH pinout, P6SMB15AH application, or P6SMB15AH equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AA (SMB) package compatibility, 1.0 mA test current specification, <1 μA leakage at 12.8 V, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance for automotive transients.
Technical Context
The P6SMB15AH operates as a unidirectional avalanche diode, activated when reverse voltage exceeds its minimum breakdown threshold (14.3 V), delivering fast clamping (<1.0 ps response) to limit transient energy. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA @ VWM).
Thermally, it features RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to TJ = +150 °C. It supports 100 A non-repetitive forward surge (8.3 ms half-sine) and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V - defines guaranteed conduction onset under 1.0 mA test current; critical for margin against false triggering |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage rises; sets safe DC rail margin |
| VC @ IPPM | 21.2 V @ 29 A - clamped voltage during 10/1000 µs surge; determines protected circuit's peak stress level |
| IPPM | 29 A - peak pulse current capability under 600 W 10/1000 µs waveform; defines transient energy handling |
| ID @ VWM | <1 µA - ultra-low reverse leakage at stand-off voltage; preserves low-power system quiescent current |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments |
| Package | DO-214AA (SMB) - industry-standard SMT footprint (4.57 × 3.94 mm), compatible with automated placement and reflow |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Weight: 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional configuration; carries full surge current during clamping |
| Cathode | Protected line connection / high-side terminal | Connected to the line being protected (e.g., 12 V battery rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications per stress test requirements (HTOL, TC, HAST, etc.) |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift over temperature and life |
| ISO 7637-2 compliance | Withstands defined automotive transient pulses (Pulse 1: inductive load dump; Pulse 2a/2b: supply interruption; Pulse 3a/3b: switching noise) |
| Moisture sensitivity level 1 | No floor-life limitation or baking required before SMT assembly - simplifies manufacturing flow |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green electronics initiatives |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump and jump-start surges. IC Role / Device Role: Unidirectional TVS placed between battery rail and input filter capacitor. Use Value: Clamps transients to ≤21.2 V, preventing damage to downstream regulators and microcontrollers rated for 24 V absolute max. | Use Scenario: Analog sensor outputs (e.g., pressure, temp) routed across noisy industrial enclosures. IC Role / Device Role: TVS on signal line between sensor and ADC input, referenced to local ground. Use Value: Limits ESD and coupling-induced spikes to sub-22 V, preserving 16-bit ADC accuracy and avoiding latch-up. |
| LED Lighting Driver Input Protection | Automotive CAN Transceiver Bus Line Protection |
Use Scenario: Constant-current LED drivers powered from vehicle battery with PWM dimming. IC Role / Device Role: TVS on driver input to absorb inductive kickback from relay or MOSFET switching. Use Value: Withstands 600 W 10/1000 µs pulses without degradation, ensuring >100,000-cycle reliability in headlamp modules. | Use Scenario: CANH/CANL lines in body control modules subjected to EFT and ESD per ISO 16750-2. IC Role / Device Role: Unidirectional P6SMB15AH on CANH (with separate device on CANL) referenced to power ground. Use Value: Maintains bus integrity during 1 kV EFT bursts by clamping to 21.2 V while adding <1 pF capacitance - no data rate impact at 500 kbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Same DO-214AA package, identical VBR (14.3–15.8 V), but lower PPPSM = 600 W (same rating), higher VC = 24.4 V @ 24.5 A | Higher clamping voltage reduces margin for 16 V-tolerant ICs; suitable where layout allows higher protected-rail headroom | Select SMBJ15A only if existing design uses it and VC margin permits; P6SMB15AH offers tighter clamping |
| 1.5SMC15A | DO-214AB (SMC) package (larger: 7.11 × 6.22 mm); same electrical specs but higher thermal mass and RθJA = 35 °C/W | Requires PCB pad redesign; preferred for high-temperature ambient (>105 °C) or repeated surge duty cycles | Choose 1.5SMC15A for enhanced thermal endurance; P6SMB15AH prioritizes space-constrained SMT layouts |
Compared with SMBJ15A and 1.5SMC15A, the P6SMB15AH delivers superior clamping performance in the smallest footprint, making it optimal for space-limited automotive modules where both low VC and AEC-Q101 compliance are mandatory.
Availability
P6SMB15AH is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor interfaces, LED driver inputs, and CAN bus protection requiring stable component supply with full traceability and lifecycle support.
Supply support for P6SMB15AH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The P6SMB15AH belongs to TSC's AEC-Q101-qualified SMB series of transient voltage suppressors, engineered specifically for robust, high-reliability protection in harsh automotive and industrial power environments.
FAQ
What is the polarity configuration of the P6SMB15AH?
The P6SMB15AH is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA package. It conducts only in reverse bias above VBR, making it suitable for DC rail protection where polarity is fixed - unlike bidirectional variants (e.g., P6SMB15CAH) used on AC or differential lines. The P6SMB15AH must be oriented with cathode toward the protected line.
Does the P6SMB15AH meet automotive qualification standards?
Yes, the P6SMB15AH is AEC-Q101 qualified and tested per the full stress test schedule including HTOL, temperature cycling, and humidity testing. It also complies with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b for automotive transient immunity - confirming suitability for under-hood and body-control module applications per P6SMB15AH datasheet specifications.
What is the maximum clamping voltage of the P6SMB15AH under standard test conditions?
The P6SMB15AH has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 29 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on the protected circuit during worst-case transient events - a critical parameter for ensuring downstream IC survival.
Can the P6SMB15AH be used in bidirectional signal protection applications?
No - the P6SMB15AH is unidirectional and not rated for symmetrical clamping in both polarities. For bidirectional protection (e.g., USB, RS-485, or CAN bus), use the P6SMB15CAH variant instead, which provides matched VBR and VC in both directions. Using P6SMB15AH on AC or floating lines risks failure during positive transients due to lack of forward conduction rating.
What is the leakage current specification for the P6SMB15AH at its stand-off voltage?
The P6SMB15AH exhibits a maximum reverse leakage current (ID) of less than 1 µA when biased at its rated stand-off voltage (VWM) of 12.8 V and measured at TA = 25 °C. This ultra-low leakage ensures minimal impact on battery-powered systems and preserves signal integrity in high-impedance sensor interfaces - a key advantage confirmed in the P6SMB15AH electrical specifications table.
P6SMB15AH 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 29A
- 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)
P6SMB15AH FAQ
1.How can I place an order for P6SMB15AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15AH 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 P6SMB15AH reliable?
The price and inventory of P6SMB15AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15AH is usually 5 days.
3.What payment methods are accepted for P6SMB15AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15AH?
P6SMB15AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15AH 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 P6SMB15AH?
For technical support, including P6SMB15AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15AH requirements.
6.How does Aetrix verify that P6SMB15AH is sourced from the original manufacturer or authorized distributors?
All P6SMB15AH 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 P6SMB15AH meets industry standards.
7.What is the process for return or replacement of P6SMB15AH?
All P6SMB15AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15AH, 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 P6SMB15AH part is unused and in its original packaging.
Return procedure for P6SMB15AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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