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Taiwan Semiconductor Corporation P6SMB75AH
- Part No.:
- P6SMB75AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75AH.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
P6SMB75AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 71.3–78.8 V, stand-off voltage of 64.1 V, and clamping voltage of 103 V at 6.1 A peak pulse current. It features AEC-Q101 qualification, glass passivated junction, and DO-214AA (SMB) package for automotive and industrial surge protection.
For engineers reviewing the P6SMB75AH datasheet, P6SMB75AH pinout, P6SMB75AH application, or P6SMB75AH equivalent, key selection criteria include its 103 V clamping performance under 10/1000 µs transients, <1 µA reverse leakage at 64.1 V, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive ESD and load-dump immunity.
Technical Context
The P6SMB75AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown threshold of 71.3 V at 1 mA test current. Its glass-passivated junction ensures stable VBR temperature coefficient (0.105 %/°C) and low leakage (<1 µA at VWM).
Designed for 10/1000 µs surge waveforms, it delivers 600 W non-repetitive peak pulse power with 103 V clamping voltage at 6.1 A IPPM, and exhibits fast response time <1.0 ps from 0 V to VBR(min). Thermal resistance is 10 °C/W (junction-to-case) and 55 °C/W (junction-to-ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V - defines reliable avalanche initiation range under 1 mA test current |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 103 V at 6.1 A - clamped voltage during 10/1000 µs transient, limiting downstream stress |
| PPPSM | 600 W - peak pulse power handling per single 10/1000 µs event, derated above 25°C |
| IR @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
| TJ max | 150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | DO-214AA (SMB) - surface-mount footprint compatible with automated assembly and IPC-7351B standard |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, 0.090 g weight, UL 94V-0 rated compound, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., CAN_H, LIN, 12 V rail); conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR tolerance and low long-term parameter drift under thermal stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ESD coupling) |
| Low profile SMB package | Enables high-density PCB layout and compatibility with reflow soldering profiles per J-STD-020 Level 1 |
| Fast response time | <1.0 ps rise to VBR(min), protecting sensitive ICs before transient energy couples into traces |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery rail in engine control units exposed to load dump and alternator ripple. IC Role / Device Role: Unidirectional TVS clamping transient spikes before they reach MCU power inputs or LDO regulators. Use Value: Clamps to 103 V at 6.1 A, preventing damage to 3.3 V/5 V logic supplies while maintaining AEC-Q101 qualification. | Use Scenario: Analog sensor lines (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role: Front-end transient suppression on 4–20 mA or 0–10 V analog input channels. Use Value: 64.1 V stand-off allows full-range signal swing while 103 V clamping protects precision ADC front-ends from EFT bursts. |
| LED Lighting Driver Protection | Communication Bus Line Protection |
Use Scenario: Constant-current LED drivers in automotive headlamps subjected to ISO 16750-2 load dump pulses. IC Role / Device Role: Primary overvoltage clamp across MOSFET drain-source or driver IC supply pins. Use Value: 600 W peak power rating absorbs 12 V system transients up to 35 V without degradation, supporting >10,000 surge cycles. | Use Scenario: CAN FD physical layer lines in vehicle domain controllers facing coupled ESD and burst noise. IC Role / Device Role: Bidirectional protection (when used as P6SMB75AH variant with CAH suffix) on CAN_H/CAN_L differential pair. Use Value: 103 V clamping limits common-mode surges while low capacitance preserves signal integrity up to 5 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | Same DO-214AA package, identical 75 V nominal breakdown, but lower 100 V clamping voltage at 6.4 A | Better clamping ratio (100 V vs. 103 V), slightly higher IPPM (6.4 A vs. 6.1 A), same AEC-Q101 grade | Select SMBJ75A if tighter clamping margin is required; verify layout compatibility with identical SMB footprint |
| 1.5SMC75A | Higher 1500 W rating, larger DO-214AB (SMC) package, 100 V clamping at 15 A, same VBR range | Used where higher energy absorption is needed (e.g., 24 V commercial vehicles), not drop-in due to larger pad layout | Choose 1.5SMC75A only when 600 W is insufficient; requires PCB redesign for SMC pads and increased board area |
Compared with SMBJ75A and 1.5SMC75A, the P6SMB75AH offers optimal balance of compact SMB footprint, AEC-Q101 compliance, and 103 V clamping-making it ideal for space-constrained automotive modules where 600 W surge capacity suffices.
Availability
P6SMB75AH is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, LED lighting drivers, and CAN bus protection requiring stable component supply and AEC-Q101 assurance.
Supply support for P6SMB75AH 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 for automotive, industrial, and consumer markets.
The P6SMB75AH belongs to TSC's AEC-Q101-qualified P6SMBx(A)H series of 600 W SMB-packaged TVS diodes, engineered specifically for robust transient immunity in harsh automotive electrical environments.
FAQ
What is the clamping voltage of the P6SMB75AH under standard 10/1000 µs surge conditions?
The P6SMB75AH has a maximum clamping voltage (VC) of 103 V at 6.1 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during automotive load-dump and EFT events. The P6SMB75AH maintains this clamping performance across its specified junction temperature range of –55 °C to +150 °C.
Is the P6SMB75AH suitable for bidirectional transient protection?
No-the P6SMB75AH is a unidirectional TVS diode intended for DC-biased lines like 12 V power rails. For bidirectional protection (e.g., AC lines or differential buses), the P6SMB75AH must be replaced with the P6SMB75CAH variant, which uses a center-tapped dual-die configuration. The P6SMB75AH itself lacks symmetrical breakdown characteristics and will not clamp in forward conduction beyond its 3.5 V forward voltage limit.
Does the P6SMB75AH meet automotive qualification standards?
Yes-the P6SMB75AH is explicitly AEC-Q101 qualified and tested per ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. It also complies with J-STD-020 moisture sensitivity level 1, JESD201 Class 2 whisker resistance, and RoHS/halogen-free standards (IEC 61249-2-21), confirming suitability for under-hood and chassis-mounted automotive applications.
What is the maximum steady-state power dissipation of the P6SMB75AH at room temperature?
The P6SMB75AH has a steady-state power dissipation (Ptot) rating of 3 W at ambient temperature (TA) = 25 °C. This value applies only to continuous DC or low-frequency reverse bias conditions-not transient events. Derating is required above 25 °C per the pulse derating curve in the datasheet, with junction temperature limited to 150 °C maximum.
How does the P6SMB75AH compare to the P6SMB75H variant?
The P6SMB75AH offers tighter breakdown voltage tolerance (71.3–78.8 V) versus the P6SMB75H (67.5–82.5 V), resulting in more consistent clamping behavior and reduced risk of premature conduction. Both share identical package, power rating, and thermal specs-but the 'A' suffix denotes enhanced VBR uniformity, making P6SMB75AH preferred for designs requiring precise overvoltage thresholds.
P6SMB75AH 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):
- 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)
P6SMB75AH FAQ
1.How can I place an order for P6SMB75AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75AH 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 P6SMB75AH reliable?
The price and inventory of P6SMB75AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75AH is usually 5 days.
3.What payment methods are accepted for P6SMB75AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75AH?
P6SMB75AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75AH 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 P6SMB75AH?
For technical support, including P6SMB75AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75AH requirements.
6.How does Aetrix verify that P6SMB75AH is sourced from the original manufacturer or authorized distributors?
All P6SMB75AH 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 P6SMB75AH meets industry standards.
7.What is the process for return or replacement of P6SMB75AH?
All P6SMB75AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75AH, 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 P6SMB75AH part is unused and in its original packaging.
Return procedure for P6SMB75AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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