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Taiwan Semiconductor Corporation P6SMB120AH
- Part No.:
- P6SMB120AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AH.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,341
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Product details
Overview
P6SMB120AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 114–126 V, clamping voltage of 165 V at 3.8 A peak pulse current, and stand-off voltage of 102 V - designed for automotive and industrial power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P6SMB120AH datasheet, P6SMB120AH pinout, P6SMB120AH application, or P6SMB120AH equivalent, this device delivers verified AEC-Q101 qualification, <1 μA reverse leakage at 102 V, 1.0 ps response time, DO-214AA (SMB) package compatibility, and robust clamping performance in high-reliability 12–48 V DC systems.
Technical Context
The P6SMB120AH operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve precise voltage clamping during fast-rising transients. Its 102 V stand-off voltage ensures stable operation under normal 120 V nominal system conditions while blocking leakage below 1 μA.
Thermal design is supported by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable power dissipation up to 3 W steady-state and 600 W non-repetitive 10/1000 μs pulses. It 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) | 114 V / 126 V - defines guaranteed avalanche initiation window under 1 mA test current |
| VWM | 102 V - maximum continuous reverse operating voltage before significant leakage |
| VC@IPPM | 165 V @ 3.8 A - clamped voltage during full 600 W transient, limiting downstream stress |
| PPPSM | 600 W - peak pulse power handling per 10/1000 μs waveform, critical for ISO 7637-2 compliance |
| IR @ VWM | <1 μA - ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | DO-214AA (SMB) - industry-standard SMT footprint with 0.090 g mass and UL 94V-0 molding |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking on one end; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or low-side return in unidirectional clamp configuration |
| Cathode | Transient voltage reference node | Connected to protected line (e.g., 120 V rail); conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal and humidity stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ESD-coupled noise) |
| Fast response time | <1.0 ps rise-to-breakdown enables suppression before sensitive ICs experience overstress |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial 48 V DC Distribution |
|---|---|
Use Scenario: Protecting engine control unit (ECU) power inputs from load dump and alternator transients in 12 V/24 V vehicle architectures. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤165 V, preventing damage to 150 V-rated DC-DC converters and microcontrollers. | Use Scenario: Safeguarding programmable logic controllers (PLCs) and motor drives powered from 48 V DC industrial buses. IC Role / Device Role / Timing Role: Primary overvoltage protection stage upstream of DC-DC regulators and isolation barriers. Use Value: Absorbs 600 W surges without degradation, maintaining system uptime during switching noise events. |
| LED Streetlight Driver Input | Telecom Power Supply Input |
Use Scenario: Shielding constant-current LED drivers from lightning-induced surges on outdoor AC/DC front-ends. IC Role / Device Role / Timing Role: Secondary surge suppression after MOVs, providing precise clamping near driver IC voltage ratings. Use Value: 102 V stand-off avoids false triggering during normal 120 VAC-derived DC bus ripple. | Use Scenario: Securing -48 V telecom rectifier outputs against backfeed transients and hot-swap events. IC Role / Device Role / Timing Role: Bidirectional-capable variant (P6SMB120AH) used in dual-rail configurations with polarity reversal tolerance. Use Value: 165 V clamping protects -48 V system components rated to ±200 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120A | Same DO-214AA package, identical 120 V nominal rating, but 600 W rating and 165 V clamping match P6SMB120AH within 2% | No AEC-Q101 qualification; intended for commercial/industrial use only | Select when automotive qualification is not required and cost optimization is prioritized |
| 1.5SMC120A | Higher 1.5 kW peak power rating, larger DO-214AB (SMC) package, 165 V clamping at 9.1 A | Requires PCB layout change due to larger footprint and higher thermal mass | Select when system-level surge energy exceeds 600 W or board space allows larger package |
Compared with SMBJ120A and 1.5SMC120A, the P6SMB120AH offers AEC-Q101 validation and DO-214AA compactness ideal for space-constrained automotive modules, while delivering matching clamping performance at lower cost than SMC alternatives.
Availability
P6SMB120AH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial 48 V DC distribution, and LED driver input stages requiring stable component supply across production lifecycles.
Supply support for P6SMB120AH 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, specializing in TVS diodes, rectifiers, MOSFETs, and power management devices.
The P6SMB120AH belongs to TSC's AEC-Q101-qualified P6SMB series of 600 W surface-mount TVS diodes, engineered specifically for robust transient immunity in automotive and harsh-environment industrial power systems.
FAQ
What is the breakdown voltage range of the P6SMB120AH?
The P6SMB120AH has a specified breakdown voltage (VBR) range of 114 V to 126 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight 10% tolerance ensures predictable clamping behavior in 120 V nominal systems and supports reliable coordination with downstream overvoltage protection circuits. The P6SMB120AH maintains this specification across its full operating temperature range of –55 °C to +150 °C.
Is the P6SMB120AH suitable for automotive applications?
Yes, the P6SMB120AH is AEC-Q101 qualified and explicitly designed for automotive use, meeting ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its glass-passivated junction, JESD201 Class 2 whisker resistance, and moisture sensitivity level 1 rating ensure reliability in under-hood environments. The P6SMB120AH is commonly deployed in engine control units, body control modules, and ADAS power supplies.
What is the clamping voltage of the P6SMB120AH at its rated peak pulse current?
The P6SMB120AH exhibits a maximum clamping voltage (VC) of 165 V at its rated peak pulse current (IPPM) of 3.8 A, defined for a 10/1000 μs waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case transients and is critical for ensuring compatibility with 150 V-rated downstream components. The P6SMB120AH achieves this performance with <1 μA leakage at 102 V stand-off voltage.
Does the P6SMB120AH have bidirectional capability?
No, the P6SMB120AH is a unidirectional TVS diode, indicated by the "H" suffix and cathode band marking. For bidirectional operation, Taiwan Semiconductor offers the P6SMB120AH variant with "AH" suffix - which is functionally identical but optimized for symmetrical clamping in AC-coupled or polarity-agnostic circuits. Always verify marking code (NEJ) and datasheet revision A2102 to confirm unidirectional configuration for the P6SMB120AH.
What package type does the P6SMB120AH use and what are its key mechanical attributes?
The P6SMB120AH uses the DO-214AA (SMB) surface-mount package: 4.57 mm × 3.94 mm × 2.29 mm body size, matte tin-plated leads compliant with J-STD-002, UL 94V-0 flammability-rated epoxy molding, and 0.090 g typical weight. Its low-profile design supports automated placement and reflow soldering, while the glass-passivated junction ensures mechanical stability during thermal cycling. The P6SMB120AH's DO-214AA footprint is compatible with standard SMB land patterns.
P6SMB120AH 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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
P6SMB120AH FAQ
1.How can I place an order for P6SMB120AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AH 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 P6SMB120AH reliable?
The price and inventory of P6SMB120AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120AH is usually 5 days.
3.What payment methods are accepted for P6SMB120AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AH?
P6SMB120AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AH 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 P6SMB120AH?
For technical support, including P6SMB120AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AH requirements.
6.How does Aetrix verify that P6SMB120AH is sourced from the original manufacturer or authorized distributors?
All P6SMB120AH 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 P6SMB120AH meets industry standards.
7.What is the process for return or replacement of P6SMB120AH?
All P6SMB120AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AH, 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 P6SMB120AH part is unused and in its original packaging.
Return procedure for P6SMB120AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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