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Taiwan Semiconductor Corporation P6SMB120CH
- Part No.:
- P6SMB120CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CH.pdf
- Description:
- 600W, 120V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,297
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Product details
Overview
P6SMB120CH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with a breakdown voltage range of 108–132 V, clamping voltage of 173 V at 3.6 A peak pulse current, and AEC-Q101 qualification for automotive-grade surge protection in power supply rails and CAN/LIN bus interfaces.
For engineers reviewing the P6SMB120CH datasheet, P6SMB120CH pinout, P6SMB120CH application, or P6SMB120CH equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, thermal resistance data (RθJA = 55°C/W), and real-world ESD/inductive switching protection use cases - all confirmed for the exact P6SMB120CH variant.
Technical Context
The P6SMB120CH is a glass-passivated, unidirectional/bidirectional TVS diode optimized for fast transient suppression in automotive and industrial systems. Its junction-to-ambient thermal resistance is 55°C/W, and it sustains 600 W non-repetitive peak pulse power under 10/1000 µs waveform per IEC 61000-4-5 and ISO 7637-2 standards.
It features bidirectional operation (CH suffix), low leakage (<1 µA at 97.2 V), 1.0 ps typical response time, and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - enabling reliable automated placement and reflow compatibility without popcorn risk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 108 V / 132 V - defines guaranteed breakdown onset across temperature and unit variation; ensures robust overvoltage triggering above system nominal 100 V rails. |
| VWM | 97.2 V - maximum continuous reverse operating voltage; sets safe DC bias margin before leakage rises sharply. |
| VC @ IPPM | 173 V at 3.6 A - clamping voltage during 10/1000 µs surge; determines worst-case stress on downstream ICs during load dump events. |
| PPPSM | 600 W - peak pulse power rating; supports single-event transients up to ISO 7637-2 Pulse 5a (load dump) energy levels. |
| IR @ VWM | <1 µA - ultra-low reverse leakage; avoids parasitic current draw in always-on 12 V/24 V monitoring circuits. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments with minimal derating. |
| RθJA | 55 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements when used in high-duty-cycle surge scenarios. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002; polarity marked by cathode band (bidirectional configuration uses symmetrical marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity dependency - connects across protected line and ground (or between differential lines) without orientation concern. |
| Case (cathode band side) | Thermal and mechanical reference | Provides primary heat path to PCB copper; requires adequate thermal pad area per DO-214AA footprint for RθJA compliance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test conditions including temperature cycling, HTRB, and ESD - eliminates qualification overhead for Tier 1 suppliers. |
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling vs. epoxy-passivated alternatives; critical for under-hood engine control modules. |
| ISO 7637-2 compliant (Pulse 1/2a/2b/3a/3b) | Guarantees immunity to common automotive transients including battery disconnect spikes, alternator load dump, and inductive switch-off noise. |
| Moisture Sensitivity Level 1 | Enables standard SMT reflow without baking or dry-pack handling - reduces manufacturing cost and floor-life constraints. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives; supports green manufacturing and export compliance without material substitution effort. |
Applications
| Automotive Power Rail Protection | CAN/LIN Bus Transient Suppression |
|---|---|
Use Scenario: Protecting 12 V/24 V power distribution networks in ECUs against load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between battery rail and ground, absorbing >600 W transient energy within nanoseconds. Use Value: Limits voltage excursion to ≤173 V during 3.6 A peak pulses, preventing damage to MCU power supplies and analog front-ends. | Use Scenario: Safeguarding CAN FD or LIN physical layer transceivers from ESD (IEC 61000-4-2) and coupled transients on bus lines. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional clamp across CAN_H/CAN_L or LIN bus and chassis ground. Use Value: Maintains signal integrity with sub-1 ps response while meeting ±25 kV contact ESD immunity without distorting 5 Mbps CAN FD waveforms. |
| Industrial Sensor Interface Protection | LED Driver Input Surge Clamping |
Use Scenario: Shielding 4–20 mA or 0–10 V analog sensor inputs in PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-rated (97.2 V) TVS placed upstream of precision op-amps and ADCs to prevent latch-up or parametric shift. Use Value: Leakage <1 µA avoids offset errors in µA-level current loops; clamping at 173 V preserves 24 V system headroom. | Use Scenario: Protecting constant-current LED drivers from AC line transients and inductive kickback during dimmer switching. IC Role / Device Role / Timing Role: Primary surge absorber across input bulk capacitor terminals in off-line LED drivers with 100–200 V DC bus. Use Value: Withstands 600 W pulses without degradation, extending driver lifetime in streetlight and signage applications exposed to lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | Same DO-214AA package, 120 V bidirectional rating, but rated at 600 W with VC = 193 V @ 3.1 A - higher clamping voltage than P6SMB120CH's 173 V @ 3.6 A. | Less effective clamping margin for 100 V nominal systems; suitable where layout space allows higher VC tolerance. | Select SMBJ120CA only if board-level voltage margin permits 20 V higher clamping; otherwise P6SMB120CH offers superior protection headroom. |
| 1.5SMC120CA | Higher power (1500 W), same 120 V bidirectional rating, but in larger DO-214AB (SMC) package - incompatible footprint and thermal profile. | Requires PCB redesign; intended for higher-energy transients beyond ISO 7637-2 scope (e.g., IEC 61000-4-5 Level 4). | Choose 1.5SMC120CA only when surge energy exceeds 600 W capability and mechanical redesign is acceptable. |
Compared with SMBJ120CA and 1.5SMC120CA, the P6SMB120CH delivers tighter clamping (173 V vs. 193 V or 200 V), better thermal efficiency in SMB footprint (RθJA = 55°C/W), and direct AEC-Q101 qualification - making it optimal for space-constrained, automotive-grade 12 V/24 V rail protection without layout change.
Availability
P6SMB120CH is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver surge hardening requiring stable component supply and full traceability.
Supply support for P6SMB120CH 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 capabilities.
The P6SMB series targets automotive and industrial transient suppression, designed specifically to meet ISO 7637-2 and AEC-Q101 requirements in compact SMB packages without sacrificing clamping performance or reliability.
FAQ
What is the breakdown voltage range specified for P6SMB120CH?
The P6SMB120CH has a guaranteed breakdown voltage (VBR) range of 108 V to 132 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent overvoltage triggering across production units and temperature extremes, directly supporting 100 V nominal system designs with sufficient safety margin. The P6SMB120CH datasheet confirms this specification under "ELECTRICAL SPECIFICATIONS" Table for device NDJ.
Is P6SMB120CH unidirectional or bidirectional, and how is polarity marked?
The P6SMB120CH is a bidirectional TVS diode, indicated by the "CH" suffix per TSC's ordering nomenclature. It has symmetrical electrical characteristics in both directions and uses a center-marked cathode band for mechanical orientation only - no functional polarity. This enables flexible placement across differential lines (e.g., CAN_H/CAN_L) or line-to-ground without orientation checks. The P6SMB120CH mechanical drawing confirms DO-214AA symmetry and dual-band marking guidance.
What is the maximum clamping voltage of P6SMB120CH and at what current is it measured?
The P6SMB120CH has a maximum clamping voltage (VC) of 173 V, measured at a peak pulse current (IPPM) of 3.6 A under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is validated per ISO 7637-2 Pulse 5a testing. The P6SMB120CH specification table explicitly lists VC@IPPM = 173 V for device NDJ.
Does P6SMB120CH meet automotive qualification standards?
Yes, the P6SMB120CH is AEC-Q101 qualified and meets ISO 7637-2 (Pulse 1/2a/2b/3a/3b) for automotive transient immunity. It also complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - confirming suitability for under-hood and body-control module applications. These qualifications are stated in the "FEATURES" section of the P6SMB120CH datasheet and verified in TSC's AEC-Q101 certificate documentation.
What is the thermal resistance and maximum junction temperature for P6SMB120CH?
The P6SMB120CH has a junction-to-ambient thermal resistance (RθJA) of 55°C/W and a maximum junction temperature (TJ) of +150°C. These values enable operation in high-temperature environments such as engine compartments when mounted on thermally enhanced PCB pads. The P6SMB120CH thermal performance table confirms RθJA = 55°C/W and TJ = –55°C to +150°C, aligning with AEC-Q101 thermal stress requirements.
P6SMB120CH 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):
- 97.2V
- Voltage - Breakdown (Min):
- 108V
- Voltage - Clamping (Max) @ Ipp:
- 173V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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)
P6SMB120CH FAQ
1.How can I place an order for P6SMB120CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CH 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 P6SMB120CH reliable?
The price and inventory of P6SMB120CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120CH is usually 5 days.
3.What payment methods are accepted for P6SMB120CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CH?
P6SMB120CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CH 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 P6SMB120CH?
For technical support, including P6SMB120CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CH requirements.
6.How does Aetrix verify that P6SMB120CH is sourced from the original manufacturer or authorized distributors?
All P6SMB120CH 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 P6SMB120CH meets industry standards.
7.What is the process for return or replacement of P6SMB120CH?
All P6SMB120CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CH, 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 P6SMB120CH part is unused and in its original packaging.
Return procedure for P6SMB120CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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