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Taiwan Semiconductor Corporation P6SMB75CAH
- Part No.:
- P6SMB75CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75CAH.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,533
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Product details
Overview
P6SMB75CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage range 71.3–78.8 V, clamping voltage 103 V at 6.1 A peak pulse current, and AEC-Q101 qualification for automotive use. It protects power rails and signal lines against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in engine control units and body electronics.
For engineers reviewing the P6SMB75CAH datasheet, P6SMB75CAH pinout, P6SMB75CAH application, or P6SMB75CAH equivalent, key selection criteria include bidirectional clamping capability, 103 V VC@IPPM, AEC-Q101 qualification, moisture sensitivity level 1, and compatibility with automated SMT placement on 1.5 mm pitch PCBs.
Technical Context
The P6SMB75CAH uses a glass-passivated silicon junction to achieve fast response time (<1.0 ps from 0 V to VBR min) and low leakage (<1 µA @ 64.1 V). Its bidirectional configuration enables symmetric clamping in AC-coupled or floating bus applications without polarity concerns.
Thermal performance is defined by RθJA = 55 °C/W and RθJC = 10 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - Ensures reliable triggering above system nominal voltage while avoiding false clamping during normal operation |
| VWM | 64.1 V - Maximum continuous reverse working voltage compatible with 60 V DC automotive systems |
| VC @ IPPM | 103 V @ 6.1 A - Clamps induced surges to safe levels for downstream 100 V-rated MOSFETs or microcontrollers |
| PPPM | 600 W - Handles ISO 7637-2 Pulse 1 (inductive load dump) energy without degradation |
| IR @ VWM | <1 µA - Negligible standby current draw in always-on vehicle modules |
| TJ max | +150 °C - Supports under-hood placement near engines or power converters |
| Package | DO-214AA (SMB) - Standardized 4.5 × 3.9 × 2.3 mm SMT footprint with cathode band marking |
Pinout & Package
DO-214AA (SMB) package: surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Weight ≈ 0.090 g. Complies with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient current sink (bidirectional) | Accepts surge current in either polarity; connects to protected line or ground return path |
| Cathode (banded end) | Transient current sink (bidirectional) | Same function as anode due to symmetrical construction; no polarity dependency in circuit layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Enables stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| ISO 7637-2 compliance | Guarantees robustness against real-world automotive transients including load dump (Pulse 2b), supply interruption (Pulse 3b), and inductive switching (Pulse 1) |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; supports standard SMT assembly without dry pack handling |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained supply chains |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive CAN Bus Transient Suppression |
|---|---|
Use Scenario: Protects 12 V power rail of engine control unit against load dump transients up to 35 V and ISO 7637-2 Pulse 2b. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed between battery input and DC-DC converter input stage. Use Value: Limits clamped voltage to 103 V, ensuring downstream 100 V-rated input capacitors and regulators remain within absolute maximum ratings. | Use Scenario: Shields high-speed CAN FD transceivers from ESD and coupled noise on differential bus lines. IC Role / Device Role / Timing Role: Common-mode TVS pair across CAN_H/CAN_L, referenced to chassis ground. Use Value: Sub-1.0 ps response ensures clamping occurs before transceiver input stages experience overstress, preserving signal integrity at 5 Mbps. |
| Body Control Module (BCM) Sensor Interface | LED Headlamp Driver Output Protection |
Use Scenario: Guards analog sensor inputs (e.g., temperature, pressure) connected to BCM against EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point before signal conditioning amplifier. Use Value: <1 µA leakage at 64.1 V prevents DC offset errors in precision 16-bit ADC front-ends operating at ±5 V full scale. | Use Scenario: Suppresses inductive kickback from PWM-driven LED strings during rapid dimming transitions in adaptive driving beam systems. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across LED output terminals of buck controller IC. Use Value: 600 W peak power rating absorbs 10/1000 µs surge energy from 2 A inductive loads without thermal runaway or parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Same DO-214AA package, identical VBR (71.3–78.8 V) and VC (103 V), but not AEC-Q101 qualified | Limited to industrial or consumer applications where automotive qualification is not mandated | Select SMBJ75CA only when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC75CA | Higher PPPM (1500 W), larger DO-214AB (SMC) package (7.1 × 6.2 × 2.6 mm), same VBR/VC specs | Suitable for higher-energy transients (e.g., 12 V truck systems) but requires PCB area increase and rework of stencil | Choose 1.5SMC75CA only if system-level testing confirms need for >600 W surge handling |
Compared with SMBJ75CA and 1.5SMC75CA, the P6SMB75CAH uniquely combines AEC-Q101 qualification, DO-214AA footprint, and 600 W rating-making it the only drop-in solution for space-constrained automotive ECUs requiring production-grade reliability validation.
Availability
P6SMB75CAH is available at Aetrix Electronics and suitable for automotive ECU design, CAN bus protection, and LED driver output safeguarding requiring stable component supply across multi-year production cycles.
Supply support for P6SMB75CAH 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, and power MOSFETs for automotive and industrial markets.
The P6SMB series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for ISO 7637-2-compliant protection in 12 V/24 V automotive subsystems with stringent thermal and reliability requirements.
FAQ
What is the clamping voltage of the P6SMB75CAH and how is it measured?
The P6SMB75CAH has a maximum clamping voltage (VC) of 103 V at 6.1 A peak pulse current (IPPM), tested with a 10/1000 µs waveform per IEC 61000-4-5. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge events, ensuring compatibility with 100 V-rated components downstream of the P6SMB75CAH.
Is the P6SMB75CAH suitable for bidirectional signal line protection?
Yes, the P6SMB75CAH is explicitly designed for bidirectional operation, as confirmed by its "CAH" suffix and electrical specifications applying equally in both directions. Its symmetrical VBR (71.3–78.8 V) and VC (103 V) make it ideal for protecting AC-coupled interfaces like CAN, LIN, or RS-485 without polarity constraints-no external diode pairing needed for the P6SMB75CAH.
Does the P6SMB75CAH require special handling during PCB assembly?
No, the P6SMB75CAH has moisture sensitivity level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and placed directly into standard lead-free reflow profiles without baking. Its matte tin-plated leads meet J-STD-002 solderability requirements, enabling reliable first-pass yield in high-volume SMT lines using the P6SMB75CAH.
How does the P6SMB75CAH compare to unidirectional TVS diodes in automotive applications?
The P6SMB75CAH eliminates polarity-dependent layout errors common with unidirectional TVS diodes by providing identical clamping behavior in both directions. Unlike unidirectional variants (e.g., P6SMB75H), the P6SMB75CAH avoids misplacement risks in high-vibration environments and simplifies BOM management-critical for platforms using both 12 V and 24 V architectures where the same P6SMB75CAH part serves dual voltage domains.
What automotive standards does the P6SMB75CAH comply with beyond AEC-Q101?
In addition to AEC-Q101 qualification, the P6SMB75CAH meets ISO 7637-2 for electrical disturbances from conduction and coupling, covering Pulse 1 (inductive load disconnect), Pulse 2a/2b (supply interruption), and Pulse 3a/3b (capacitive coupling and EFT). These certifications are verified per the manufacturer's test report and apply directly to the P6SMB75CAH-not inferred from family data.
P6SMB75CAH 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
P6SMB75CAH FAQ
1.How can I place an order for P6SMB75CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75CAH 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 P6SMB75CAH reliable?
The price and inventory of P6SMB75CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75CAH is usually 5 days.
3.What payment methods are accepted for P6SMB75CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75CAH?
P6SMB75CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75CAH 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 P6SMB75CAH?
For technical support, including P6SMB75CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75CAH requirements.
6.How does Aetrix verify that P6SMB75CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB75CAH 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 P6SMB75CAH meets industry standards.
7.What is the process for return or replacement of P6SMB75CAH?
All P6SMB75CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75CAH, 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 P6SMB75CAH part is unused and in its original packaging.
Return procedure for P6SMB75CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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