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Taiwan Semiconductor Corporation P6SMB22H
- Part No.:
- P6SMB22H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22H.pdf
- Description:
- 600W, 22V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,089
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Product details
Overview
P6SMB22H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 19.8–24.2 V, stand-off voltage of 17.8 V, and clamping voltage of 31.9 V at 19 A peak pulse current. It features glass-passivated junction, AEC-Q101 qualification, and DO-214AA (SMB) packaging-designed for automotive ESD and load-dump protection in power supply rails and signal lines.
For engineers reviewing the P6SMB22H datasheet, P6SMB22H pinout, P6SMB22H application, or P6SMB22H equivalent, key selection criteria include its 17.8 V working voltage, 31.9 V clamping performance under 10/1000 µs surge, ±0.092 %/°C VBR temperature coefficient, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transients.
Technical Context
The P6SMB22H operates as a unidirectional avalanche diode, leveraging glass-passivated PN junction technology to deliver fast sub-nanosecond response (<1.0 ps from 0 V to VBR,min) and low leakage (<1 µA at 17.8 V). Its thermal design supports 150 °C maximum junction temperature with RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation in high-temperature automotive engine-bay environments.
It meets AEC-Q101 stress requirements including mechanical shock, temperature cycling, and humidity testing, and is rated for moisture sensitivity level 1 per J-STD-020-ensuring compatibility with standard SMT reflow profiles without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 19.8 V / 24.2 V - defines guaranteed avalanche initiation window under 1.0 mA test current |
| VWM | 17.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 31.9 V at 19 A - clamping voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPSM | 600 W - peak pulse power handling capability per single non-repetitive 10/1000 µs waveform |
| TJ,max | 150 °C - enables placement near heat sources in automotive ECUs without derating concerns |
| Temp. Coeff. VBR | 0.092 %/°C - ensures predictable voltage drift across -55 °C to +150 °C operating range |
| Package | DO-214AA (SMB) - industry-standard 2-pin surface-mount outline with 0.090 g mass and J-STD-002 solderability |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Dimensions conform to JEDEC DO-214AA standard; suitable for automated pick-and-place.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal | Connected to protected line (e.g., 12 V rail); conducts surge current to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, mechanical shock, and HAST |
| Glass-passivated junction | Enhances long-term reliability and stability of VBR vs. time/temperature versus epoxy-passivated alternatives |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect/load dump), and Pulse 3a/3b (switching transients) |
| Low-profile SMB package | Enables high-density PCB layouts while maintaining 600 W surge capability-no trade-off between size and robustness |
| Moisture sensitivity level 1 | Eliminates need for dry-packaging or baking prior to SMT assembly, reducing manufacturing cost and risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load-dump transients up to 35 V in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between VIN and GND, conducting only during overvoltage events. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤31.9 V during 10/1000 µs surges, preventing latch-up or permanent damage. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure or temperature sensors) connected to PLC I/O modules exposed to EFT bursts. IC Role / Device Role / Timing Role: Reverse-biased TVS on signal line to shunt ESD/EFT energy before reaching ADC input stage. Use Value: Clamps transients within <1.0 ps while maintaining <1 µA leakage at 17.8 V, preserving signal integrity and measurement accuracy. |
| LED Lighting Driver Protection | Automotive CAN Bus Power Line Protection |
Use Scenario: Shielding constant-current LED driver ICs from inductive kickback generated by relay-controlled ballast circuits. IC Role / Device Role / Timing Role: Unidirectional TVS placed across driver input terminals to absorb repetitive 600 W pulses. Use Value: Withstands ≥1000 surges at rated power due to robust glass-passivated junction and 150 °C TJ,max. | Use Scenario: Protecting 12 V supply rail feeding isolated CAN transceivers in gateway ECUs subjected to battery reversal and jump-start conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC line upstream of DC/DC converter, coordinated with secondary TVS on data lines. Use Value: Meets ISO 7637-2 Pulse 2a (load dump) and Pulse 3b (EFT), ensuring CAN communication continuity during harsh electrical events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Same DO-214AA package, bidirectional, VBR = 24.4–26.9 V, VC = 35.5 V @ 17.1 A | Supports AC-coupled or dual-polarity signal lines; higher clamping voltage reduces margin for 12 V systems | Select SMBJ22A only if bidirectional protection is required; otherwise P6SMB22H offers tighter VBR tolerance and lower VC. |
| 1.5SMC22A | DO-214AB (SMC) package, larger footprint, same VBR/VC, PPPSM = 1500 W | Higher power rating suits infrequent but extreme surges; incompatible with SMB land patterns | Choose 1.5SMC22A only when board space allows and surge duty cycle demands >600 W capability. |
Compared with SMBJ22A and 1.5SMC22A, the P6SMB22H provides optimal balance of compact SMB footprint, AEC-Q101 qualification, 31.9 V clamping headroom for 12 V systems, and production-ready moisture level 1 handling-making it the preferred choice for high-volume automotive and industrial SMT deployments.
Availability
P6SMB22H is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED lighting drivers, and CAN bus power rail protection requiring stable component supply across extended temperature ranges and rigorous reliability standards.
Supply support for P6SMB22H 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-compliant production lines.
The P6SMB series was developed specifically for automotive-grade transient suppression, emphasizing robustness under ISO 7637-2 stress, low-profile SMT compatibility, and zero-bake manufacturability-targeting ECU, lighting, and ADAS subsystems.
FAQ
What is the polarity configuration of the P6SMB22H?
The P6SMB22H is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA package. It conducts only when the cathode is at a higher potential than the anode-ideal for DC rail clamping where reverse voltage is not expected. This differs from bidirectional variants like P6SMB22AH, which protect both polarities.
Does the P6SMB22H meet automotive qualification standards?
Yes, the P6SMB22H is AEC-Q101 qualified and tested for automotive reliability-including temperature cycling, mechanical shock, and humidity exposure. It also complies with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b, making it suitable for under-hood and chassis-mounted electronic control units per OEM requirements.
What is the maximum clamping voltage of the P6SMB22H under surge conditions?
The P6SMB22H has a maximum clamping voltage (VC) of 31.9 V at 19 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees safe voltage limiting for downstream 3.3 V or 5 V logic powered from a 12 V rail.
Can the P6SMB22H be used in bidirectional signal protection?
No-the P6SMB22H is unidirectional and unsuitable for AC or bipolar signal lines. For bidirectional protection, use the P6SMB22AH variant, which features symmetric breakdown characteristics in both directions and identical package dimensions. Substituting P6SMB22H in such applications risks failure during negative transients.
What is the thermal resistance profile of the P6SMB22H?
The P6SMB22H has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient resistance (RθJA) of 55 °C/W at 25 °C ambient. These values assume standard PCB copper area; actual RθJA improves with added thermal pad copper, supporting continuous operation up to 150 °C junction temperature.
P6SMB22H 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):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 19A
- 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)
P6SMB22H FAQ
1.How can I place an order for P6SMB22H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22H 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 P6SMB22H reliable?
The price and inventory of P6SMB22H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22H is usually 5 days.
3.What payment methods are accepted for P6SMB22H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22H?
P6SMB22H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22H 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 P6SMB22H?
For technical support, including P6SMB22H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22H requirements.
6.How does Aetrix verify that P6SMB22H is sourced from the original manufacturer or authorized distributors?
All P6SMB22H 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 P6SMB22H meets industry standards.
7.What is the process for return or replacement of P6SMB22H?
All P6SMB22H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22H, 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 P6SMB22H part is unused and in its original packaging.
Return procedure for P6SMB22H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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