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Taiwan Semiconductor Corporation P6SMB82AH
- Part No.:
- P6SMB82AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82AH.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,214
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Product details
Overview
P6SMB82AH from Taiwan Semiconductor is a unidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode with a nominal breakdown voltage of 77.9–86.1 V, clamping voltage of 113 V at 5.5 A peak pulse current, and stand-off voltage of 70.1 V. It features glass-passivated junction, AEC-Q101 qualification, and DO-214AA (SMB) package for automotive ESD and load-dump protection.
For engineers reviewing the P6SMB82AH datasheet, P6SMB82AH pinout, P6SMB82AH application, or P6SMB82AH equivalent, key selection criteria include its 113 V clamping performance under 10/1000 µs surge, <1 µA leakage at 70.1 V, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics robustness.
Technical Context
The P6SMB82AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (77.9 V) at 1 mA test current. Its fast response time (<1.0 ps) ensures suppression before transient energy damages downstream ICs.
Thermal design relies on RθJC = 10 °C/W and RθJA = 55 °C/W, enabling reliable operation up to TJ = 150 °C. The device sustains non-repetitive 600 W peak pulse power per 10/1000 µs waveform and handles 100 A forward surge current (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - defines guaranteed avalanche initiation range at 1 mA, critical for precise overvoltage threshold setting |
| VWM | 70.1 V - maximum continuous reverse operating voltage; ensures no conduction during normal system operation |
| VC @ IPPM | 113 V at 5.5 A - clamped voltage during worst-case 10/1000 µs transient; determines protected circuit's maximum stress level |
| PPPSM | 600 W - peak pulse power handling capacity; supports high-energy automotive load-dump events |
| IR @ VWM | <1 µA - ultra-low reverse leakage preserves battery life in always-on automotive modules |
| TJ max | +150 °C - enables under-hood deployment without derating in engine control units and body controllers |
| Package | DO-214AA (SMB) - industry-standard SMT footprint compatible with automated placement and reflow soldering |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during surge |
| Cathode | Protected line connection | Connected to supply rail (e.g., 12 V or 24 V bus); conducts avalanche current when VAK > VBR |
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 | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives in humid environments |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ESD-coupled noise) waveforms |
| Low profile SMB package | Height ≤ 2.6 mm enables use in space-constrained ECUs and ADAS sensor modules |
| Junction-to-case thermal resistance | RθJC = 10 °C/W - supports direct thermal coupling to PCB copper pour for improved power dissipation |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed microcontroller power input in engine control unit exposed to load-dump transients up to 35 V. IC Role / Device Role: Primary TVS clamp on main supply rail, diverting surge current away from LDO regulators and MCU VDD. Use Value: Clamps to 113 V within <1 ps, limiting stress on 16 V-rated input capacitors and preventing brownout-induced MCU reset. | Use Scenario: RS-485 transceiver data lines in factory automation PLC I/O module subject to EFT bursts per IEC 61000-4-4. IC Role / Device Role: Secondary-level TVS on signal lines, placed after common-mode choke to suppress differential-mode surges. Use Value: Sub-1 µA leakage avoids DC bias shift on 120 Ω termination; 113 V clamping prevents transceiver latch-up during 4 kV EFT events. |
| LED Lighting Driver Input Protection | DC-DC Converter Input Stage Protection |
Use Scenario: Constant-current LED driver in commercial vehicle headlamp subjected to ISO 16750-2 jump-start pulses (up to 24 V). IC Role / Device Role: Front-end TVS on buck converter input, upstream of input capacitor and controller IC. Use Value: Withstands repetitive 600 W pulses without degradation; 70.1 V VWM allows full 24 V operation while blocking false triggering. | Use Scenario: 48 V-to-12 V isolated DC-DC converter in telecom power shelf exposed to lightning-induced surges on primary side. IC Role / Device Role: Bulk transient suppressor across primary winding input, coordinated with MOV and fuse. Use Value: 113 V clamping voltage aligns with 150 V MOSFET VDSS rating, ensuring FET remains within SOA during 10/1000 µs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ82A | Same DO-214AA package; VBR = 91.1–100.9 V, VC = 131 V @ 4.6 A, PPPSM = 600 W | Higher clamping voltage increases stress on downstream 100 V-rated components | Select when higher VBR tolerance is needed to avoid nuisance clamping near 82 V nominal rails |
| 1.5SMC82A | DO-214AB (SMC) package; VBR = 91.1–100.9 V, VC = 131 V @ 4.6 A, PPPSM = 1500 W | Larger footprint and higher power rating suit industrial mains-input stages, not space-constrained automotive PCBs | Choose for higher surge endurance where board area permits and 1500 W rating is required |
Compared with SMBJ82A and 1.5SMC82A, the P6SMB82AH offers tighter VBR (77.9–86.1 V) and lower clamping (113 V), making it optimal for precision 82 V threshold protection in automotive modules where layout space and thermal constraints are critical.
Availability
P6SMB82AH is available at Aetrix Electronics and suitable for automotive ECU power rail protection, industrial sensor interface hardening, and LED driver input surge suppression requiring stable component supply across production lifecycles.
Supply support for P6SMB82AH 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, serving automotive, industrial, and consumer markets since 1979.
The P6SMB82AH 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 automotive power distribution and electronic control systems.
FAQ
What is the breakdown voltage range for P6SMB82AH?
The P6SMB82AH has a guaranteed breakdown voltage range of 77.9 V to 86.1 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in 82 V nominal systems. The P6SMB82AH's VBR is validated during 100% production testing.
Is P6SMB82AH unidirectional or bidirectional?
The P6SMB82AH is a unidirectional TVS diode, indicated by the absence of "C" or "CA" prefix in its part number and confirmed by its single cathode band marking. It conducts only during reverse-biased overvoltage events and blocks forward current like a standard rectifier diode. Bidirectional variants (e.g., P6SMB82CAH) are available separately for AC-line or differential-signal protection.
Does P6SMB82AH meet automotive reliability standards?
Yes, the P6SMB82AH is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for automotive electrical disturbances. Its glass-passivated junction, JESD201 Class 2 whisker resistance, and moisture sensitivity level 1 rating further validate its suitability for under-hood and chassis-mounted automotive applications. The P6SMB82AH's qualification data is documented in Taiwan Semiconductor's official AEC-Q101 report.
What is the maximum clamping voltage of P6SMB82AH under surge conditions?
The P6SMB82AH clamps to a maximum of 113 V when subjected to its rated 5.5 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at TA = 25°C and represents the upper limit of voltage seen by protected circuitry during worst-case transient events. Derating applies above 25°C ambient per the pulse derating curve in the P6SMB82AH datasheet.
Can P6SMB82AH be used in DC-DC converter input protection?
Yes, the P6SMB82AH is commonly deployed for input-stage transient protection in DC-DC converters, especially in automotive 12 V/24 V systems. Its 70.1 V stand-off voltage allows safe operation across nominal input ranges, while its 113 V clamping voltage aligns with 150 V-rated MOSFETs and input capacitors. The P6SMB82AH's low leakage (<1 µA) prevents efficiency loss in always-on converter standby modes.
P6SMB82AH 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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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)
P6SMB82AH FAQ
1.How can I place an order for P6SMB82AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82AH 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 P6SMB82AH reliable?
The price and inventory of P6SMB82AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82AH is usually 5 days.
3.What payment methods are accepted for P6SMB82AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82AH?
P6SMB82AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82AH 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 P6SMB82AH?
For technical support, including P6SMB82AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82AH requirements.
6.How does Aetrix verify that P6SMB82AH is sourced from the original manufacturer or authorized distributors?
All P6SMB82AH 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 P6SMB82AH meets industry standards.
7.What is the process for return or replacement of P6SMB82AH?
All P6SMB82AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82AH, 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 P6SMB82AH part is unused and in its original packaging.
Return procedure for P6SMB82AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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