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Taiwan Semiconductor Corporation P6SMB24CH
- Part No.:
- P6SMB24CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CH.pdf
- Description:
- 600W, 24V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:5,794
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Product details
Overview
P6SMB24CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, rated for 600W peak pulse power, 24V breakdown voltage (VBR = 21.6–26.4V), and clamping voltage of 34.7V at 18A peak pulse current - deployed for ESD and surge protection in automotive lighting control modules and industrial sensor interfaces.
For engineers reviewing the P6SMB24CH datasheet, P6SMB24CH pinout, P6SMB24CH application, or P6SMB24CH equivalent, key selection criteria include unidirectional/bidirectional configuration (CH suffix = bidirectional), clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction temperature limit of 150°C, and compliance with AEC-Q101 for automotive-grade reliability.
Technical Context
The P6SMB24CH implements 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 @ 19.4 V). Its bidirectional architecture enables symmetric clamping in both polarities, eliminating need for polarity-aware PCB layout in differential or AC-coupled signal paths.
Thermally, it features RθJC = 10°C/W and RθJA = 55°C/W, supporting sustained operation up to TJ = 150°C. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - enabling compatibility with standard reflow profiles and automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 21.6 V / 26.4 V - ensures reliable triggering above system operating voltage while maintaining margin against false clamping |
| VWM | 19.4 V - maximum continuous reverse working voltage; defines upper limit of safe DC/AC steady-state bias |
| VC @ IPPM | 34.7 V @ 18 A - clamping voltage during 10/1000 µs surge; determines peak stress on protected IC inputs |
| PPPSM | 600 W - non-repetitive peak pulse power handling per ISO 7637-2; defines single-event surge survivability |
| IR @ VWM | <1 µA - ultra-low reverse leakage minimizes standby power loss and avoids signal integrity degradation |
| TJ(max) | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 0.090 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking for polarity identification (bidirectional use renders band non-functional but retained for mechanical consistency).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked end) | Transient current entry point in negative polarity events | Provides symmetrical conduction path during reverse surges; bidirectional behavior eliminates need for orientation-specific placement |
| Cathode (band end) | Transient current entry point in positive polarity events | Enables clamping across both voltage polarities without external circuit modification or polarity awareness |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and lighting systems per stress test requirements |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Guarantees robustness against real-world automotive transients including load dump, inductive switching, and battery reversal |
| Moisture Sensitivity Level 1 | Permits unlimited floor life and standard reflow without baking - reduces manufacturing overhead and risk of popcorning |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives for environmentally compliant production and end-of-life handling |
Applications
| Automotive Lighting Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontroller GPIOs from load-dump spikes and ESD events in headlamp and tail lamp modules. IC Role / Device Role: Bidirectional TVS placed at connector interface and IC supply pins to clamp ±100 V transients. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic circuits by limiting voltage to ≤34.7 V during 10/1000 µs surges. | Use Scenario: Safeguarding analog front-end amplifiers and ADC inputs in 4–20 mA current-loop sensors exposed to field wiring transients. IC Role / Device Role: Placed across input terminals and supply rails to absorb coupled noise and lightning-induced surges. Use Value: Maintains signal fidelity by limiting transient overvoltage to <35 V while contributing <1 µA leakage at 19.4 V operating bias. |
| Automotive Body Electronics | Consumer Appliance Motor Control |
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers from battery line transients during ignition and alternator load dump. IC Role / Device Role: Bidirectional clamping device connected between VBAT and GND near ECUs and actuators. Use Value: Ensures uninterrupted communication by clamping ISO 7637-2 Pulse 2b (50 V, 100 ms) to ≤34.7 V without degrading baseline power efficiency. | Use Scenario: Protecting MCU reset lines and H-bridge gate drivers in washing machine and HVAC blower control boards. IC Role / Device Role: Mounted at board-level connectors and power rail entry points to suppress inductive kickback from brushed DC motors. Use Value: Extends product lifetime by absorbing 600 W surges without degradation, validated per AEC-Q101 temperature cycling and humidity testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | Same DO-214AA package, identical VBR range (21.6–26.4 V), but rated for 600 W per JEDEC standards; slightly higher VC = 38.9 V @ 15.4 A | Higher clamping voltage reduces margin for 3.3 V logic protection; preferred where legacy design uses ON Semi footprint | Select SMBJ24CA only if existing layout uses ON Semi's SMBJ series and VC margin allows |
| 1.5KE24CA | Through-hole DO-15 package, same VBR, but lower power rating (1500 W peak, derated to ~600 W at elevated TA); larger footprint and no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive applications requiring AEC-Q101; used in cost-sensitive industrial power supplies | Choose 1.5KE24CA only for through-hole prototyping or non-automotive applications where reflow compatibility is not required |
Compared with P6SMB24CH, SMBJ24CA offers identical packaging and surge rating but trades clamping performance for broader vendor support, while 1.5KE24CA sacrifices SMT compatibility and automotive qualification for higher single-pulse energy capacity in legacy designs.
Availability
P6SMB24CH is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interface, and body electronics applications requiring stable component supply with AEC-Q101 qualification and ISO 7637-2 compliance.
Supply support for P6SMB24CH 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 validation capability.
The P6SMB series belongs to TSC's automotive-grade transient suppression portfolio, engineered specifically for robustness in harsh electrical environments including vehicle power networks and industrial fieldbus interfaces.
FAQ
What does the "CH" suffix indicate in P6SMB24CH?
The "CH" suffix denotes a bidirectional configuration - meaning the P6SMB24CH provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB24H), the CH version has no functional cathode marking and clamps equally in either polarity, simplifying layout for AC-coupled or floating signal lines.
Is P6SMB24CH qualified for automotive applications?
Yes, P6SMB24CH is AEC-Q101 qualified and tested per automotive stress requirements including temperature cycling, humidity bias, and mechanical shock. It also meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b specifications - making it suitable for under-hood and body-control module deployments where reliability under electrical transients is critical.
What is the maximum clamping voltage of P6SMB24CH and at what current?
The maximum clamping voltage of P6SMB24CH is 34.7 V, measured at a peak pulse current (IPPM) of 18 A under the standardized 10/1000 µs waveform. This value defines the highest voltage seen by downstream circuitry during a worst-case surge event and is confirmed in the Electrical Specifications table on page 2 of the TSC datasheet.
Can P6SMB24CH be used in place of a unidirectional TVS like P6SMB24H?
No - P6SMB24CH is bidirectional and cannot substitute directly for unidirectional P6SMB24H without circuit review. While both share identical VBR, VWM, and PPPSM, the CH variant conducts in both directions and lacks polarity-dependent forward voltage behavior. Substitution requires verifying that reverse conduction will not interfere with DC bias or signal integrity in the target application.
What is the thermal resistance profile of P6SMB24CH?
P6SMB24CH has a junction-to-case thermal resistance (RθJC) of 10°C/W and junction-to-ambient resistance (RθJA) of 55°C/W at TA = 25°C. These values enable effective heat dissipation in compact PCB layouts and support continuous operation up to +150°C junction temperature when mounted on standard 1 oz copper with recommended pad area per the DO-214AA footprint guidelines.
P6SMB24CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 18A
- 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)
P6SMB24CH FAQ
1.How can I place an order for P6SMB24CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CH 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 P6SMB24CH reliable?
The price and inventory of P6SMB24CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CH is usually 5 days.
3.What payment methods are accepted for P6SMB24CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CH?
P6SMB24CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CH 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 P6SMB24CH?
For technical support, including P6SMB24CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CH requirements.
6.How does Aetrix verify that P6SMB24CH is sourced from the original manufacturer or authorized distributors?
All P6SMB24CH 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 P6SMB24CH meets industry standards.
7.What is the process for return or replacement of P6SMB24CH?
All P6SMB24CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CH, 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 P6SMB24CH part is unused and in its original packaging.
Return procedure for P6SMB24CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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