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Taiwan Semiconductor Corporation P6SMB150A
- Part No.:
- P6SMB150A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,472
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Product details
Overview
P6SMB150A from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a breakdown voltage range of 143–158 V, clamps transients to ≤207 V at 3.0 A peak pulse current, and operates with ≤1 µA reverse leakage at its 128 V stand-off voltage - ideal for protecting SMPS outputs and industrial power rails.
For engineers reviewing the P6SMB150A datasheet, P6SMB150A pinout, P6SMB150A application, or P6SMB150A equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 150°C junction rating, and verified clamping performance under 10/1000 µs surge waveforms.
Technical Context
The P6SMB150A uses a glass-passivated silicon junction optimized for fast response (<1.0 ps rise time from 0 V to VBR min) and stable clamping under repetitive or single-event transients. Its unidirectional configuration provides asymmetric protection with cathode-anode polarity, enabling integration into positive-rail protection schemes without bidirectional leakage concerns.
Thermally, it delivers RθJC = 10°C/W and RθJA = 55°C/W, supporting continuous operation up to 150°C junction temperature. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, ensuring robustness in automated SMT assembly and long-term reliability in harsh ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V - defines guaranteed breakdown onset across production lot; ensures consistent triggering above 128 V operating rail |
| VWM | 128 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM | 207 V at 3.0 A - clamping voltage during 10/1000 µs surge; limits downstream voltage stress to safe margin below 250 V IC ratings |
| PPPSM | 600 W - peak pulse power handling per single 10/1000 µs event; supports automotive load-dump and inductive switching surges |
| IR @ VWM | ≤1 µA - ultra-low reverse leakage preserves efficiency in high-impedance monitoring or low-power standby circuits |
| TJ max | 150 °C - enables deployment in enclosed power supplies or engine-bay-adjacent modules without thermal derating penalties |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline; compatible with IPC-7351B footprint and standard reflow profiles |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking on one end, weight ≈0.090 g. Complies with UL 94V-0 flammability and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected line connection | Connected to positive rail or signal line requiring clamping to ground; conducts during overvoltage events |
| Anode | Reference/ground connection | Tied to system ground or low-impedance return path; completes clamping loop during transient conduction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| ISO 7637-2 compliance | Validated against automotive electrical disturbance pulses (Pulse 1, 2a, 2b, 3a, 3b), enabling direct use in vehicle ECUs and body controllers |
| Fast response time | <1.0 ps rise time from 0 V to VBR min - intercepts ESD and fast-edge transients before sensitive circuitry reacts |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives - suitable for consumer electronics and export-restricted markets |
| Moisture sensitivity level 1 | No dry-pack or baking required prior to reflow; simplifies manufacturing and reduces process cost |
Applications
| Switching Mode Power Supply (SMPS) | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protection of 120–150 V DC output rails in AC/DC front-end converters and DC/DC post-regulators. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between output and ground to clamp inductive kickback and line surges. Use Value: Limits transient overshoot to ≤207 V, preventing damage to downstream MOSFETs, optocouplers, and feedback ICs rated for 250 V isolation. | Use Scenario: Guarding gate-drive supply lines and encoder feedback inputs in variable-frequency drives. IC Role / Device Role / Timing Role: Standoff-rated suppression element absorbing commutation spikes and EMI-coupled noise on control PCBs. Use Value: Maintains <1 µA leakage at 128 V, avoiding false triggering of under-voltage lockout while delivering 600 W pulse immunity. |
| Telecom Power Interface | Test & Measurement Equipment |
Use Scenario: Input-stage surge protection for 48 V telecom rectifiers and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on DC input bus, coordinated with upstream fuses and common-mode chokes. Use Value: Clamps 10/1000 µs transients to 207 V within 1 ps, meeting ITU-T K.20 and IEC 61000-4-5 Level 3 requirements. | Use Scenario: Protecting analog front-end inputs and reference voltage nodes in precision multimeters and oscilloscope channels. IC Role / Device Role / Timing Role: Low-capacitance transient shunt placed adjacent to ADC inputs and op-amp buffers. Use Value: Adds <1 µA leakage and minimal parasitic capacitance, preserving signal integrity while blocking >1 kV ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Same DO-214AA package, identical VBR (143–158 V), but higher VC = 243 V at 2.5 A; lower PPPSM = 600 W same rating | Higher clamping voltage reduces margin for 200 V-rated components; suitable where layout allows tighter thermal management | Select SMBJ150A only if existing design uses SMBJ-series footprints and thermal constraints permit higher VC |
| 1.5SMC150A | DO-214AB (SMC) package - larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm); same VBR/VC specs but higher IPPM = 3.2 A | Requires PCB redesign; preferred in high-energy industrial environments where 1.5 kW surge capability is needed | Choose 1.5SMC150A when board space permits and peak pulse current must exceed 3.0 A under 10/1000 µs waveform |
Compared with SMBJ150A and 1.5SMC150A, the P6SMB150A offers optimal balance of compact DO-214AA footprint, 207 V clamping ceiling, and proven ISO 7637-2 compliance - making it the preferred choice for space-constrained, automotive-grade, and high-volume SMPS designs.
Availability
P6SMB150A is available at Aetrix Electronics and suitable for switching mode power supplies, industrial motor drives, and telecom power interfaces requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB150A 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 qualified product lines.
The P6SMB150A belongs to TSC's P6SMB series of 600 W surface-mount TVS diodes, engineered specifically for robust overvoltage protection in automotive, industrial, and telecom power systems where reliability under ISO 7637-2 stress is mandatory.
FAQ
What is the polarity configuration of the P6SMB150A?
The P6SMB150A is a unidirectional TVS diode with cathode-anode polarity, indicated by a band on the cathode end. It conducts only during positive transients relative to ground, making it suitable for protecting positive DC rails. Unlike bidirectional variants (e.g., P6SMB150CA), the P6SMB150A does not conduct on negative excursions - critical for applications requiring asymmetric clamping behavior.
Does the P6SMB150A meet automotive surge immunity standards?
Yes, the P6SMB150A meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements for electrical disturbances in road vehicles. Its 600 W peak pulse rating, 207 V clamping voltage at 3.0 A, and fast <1.0 ps response ensure reliable suppression of load dump, inductive switching, and coupled noise events - validated per test waveforms defined in the standard.
What is the maximum steady-state power dissipation for the P6SMB150A?
The P6SMB150A has a steady-state power dissipation (Ptot) of 3 W at TA = 25°C. This rating applies only to continuous DC or low-frequency AC conditions - not transient events. Derating is required above 25°C ambient per the published thermal curve (RθJA = 55°C/W), and actual operational power remains negligible during normal blocking due to <1 µA leakage at 128 V.
Can the P6SMB150A be used in bidirectional protection circuits?
No - the P6SMB150A is strictly unidirectional. For bidirectional protection, TSC offers the P6SMB150CA variant, which provides symmetrical clamping in both polarities. Using the P6SMB150A in a bidirectional configuration would result in forward conduction and potential failure during negative transients; always verify suffix 'A' denotes unidirectional construction per TSC's ordering code convention.
What is the junction-to-case thermal resistance (RθJC) of the P6SMB150A?
The P6SMB150A has a typical junction-to-case thermal resistance (RθJC) of 10°C/W, measured under standardized test conditions. This value enables accurate thermal modeling when mounted on copper pads or heat-spreading planes, supporting junction temperature prediction under pulsed or sustained power dissipation - essential for reliability validation in high-ambient environments like engine compartments or enclosed power enclosures.
P6SMB150A 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB150A FAQ
1.How can I place an order for P6SMB150A through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150A 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 P6SMB150A reliable?
The price and inventory of P6SMB150A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB150A is usually 5 days.
3.What payment methods are accepted for P6SMB150A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150A?
P6SMB150A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150A 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 P6SMB150A?
For technical support, including P6SMB150A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150A requirements.
6.How does Aetrix verify that P6SMB150A is sourced from the original manufacturer or authorized distributors?
All P6SMB150A 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 P6SMB150A meets industry standards.
7.What is the process for return or replacement of P6SMB150A?
All P6SMB150A units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150A, 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 P6SMB150A part is unused and in its original packaging.
Return procedure for P6SMB150A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150A Tags
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