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Taiwan Semiconductor Corporation P6SMB82H
- Part No.:
- P6SMB82H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82H.pdf
- Description:
- 600W, 82V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,187
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Product details
Overview
P6SMB82H from Taiwan Semiconductor is a unidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode with a breakdown voltage range of 73.8–90.2 V, clamping voltage of 118 V at 5.3 A peak pulse current, and stand-off voltage of 66.4 V. It features glass passivated junction, AEC-Q101 qualification, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive transient immunity.
For engineers reviewing the P6SMB82H datasheet, P6SMB82H pinout, P6SMB82H application, or P6SMB82H equivalent, this device is selected for high-reliability DC power rail protection in automotive ECUs, industrial control I/O modules, and LED driver input stages where fast clamping (<1 ps response), low leakage (<1 µA @ 66.4 V), and robust 600W surge handling are required.
Technical Context
The P6SMB82H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (73.8 V). Its clamping action limits transient-induced voltage to ≤118 V at 5.3 A (10/1000 µs waveform), protecting downstream circuitry from ESD and load-dump events.
Thermal performance is defined by RθJC = 10 °C/W and RθJA = 55 °C/W, enabling operation up to +150 °C junction temperature. It uses a DO-214AA (SMB) package with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 73.8 V / 90.2 V - Ensures reliable triggering above 66.4 V operating rail while accommodating process variation |
| VWM | 66.4 V - Maximum continuous reverse working voltage; defines safe DC operating margin before conduction |
| VC @ IPPM | 118 V at 5.3 A (10/1000 µs) - Limits transient voltage seen by protected ICs to non-destructive levels |
| PPPSM | 600 W - Sustains single high-energy transients per ISO 7637-2 without failure |
| IR @ VWM | <1 µA - Negligible leakage current preserves battery life and signal integrity in always-on systems |
| TJ max | +150 °C - Supports under-hood automotive placement and industrial high-temp environments |
| Package | DO-214AA (SMB) - Standardized surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking; dual axial leads, matte tin plated; polarity indicated by cathode band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-biased operation | Connected to system ground or lower-potential rail; forms return path during clamping |
| Cathode | Transient voltage sensing and clamping node | Connected to protected line (e.g., 48V supply rail); conducts avalanche current to ground during overvoltage |
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 reduces parameter drift under thermal/humidity stress vs. epoxy-passivated alternatives |
| Clamping time <1.0 ps | Responds faster than most microcontrollers' I/O damage threshold, enabling protection of high-speed CAN/LIN interfaces |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow; supports standard SMT processes without floor-life constraints |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Body Control Module (BCM) | Industrial 24/48V PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and power window motor drivers from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12V/24V supply rail and ground, clamping surges before they reach LDOs and MCU power pins. Use Value: Withstands 600W ISO 7637-2 Pulse 5a (load dump) and maintains VC ≤118 V, preventing brownout or latch-up in 3.3V/5V logic domains. |
Use Scenario: Safeguarding analog input channels and digital outputs in programmable logic controllers exposed to inductive switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24V/48V field-side power rails, absorbing repetitive EFT bursts per IEC 61000-4-4 Level 4. Use Value: Sub-1 µA leakage at 66.4 V avoids measurement error in precision 4–20 mA loops; 118 V clamping prevents op-amp saturation in signal conditioning stages. |
| LED Streetlight Driver Input Stage | Telecom Power Supply Surge Protection |
|
Use Scenario: Shielding AC-DC front-end rectifiers and PFC controllers from lightning-induced surges on outdoor-rated lighting lines. IC Role / Device Role / Timing Role: Primary-stage TVS on DC bus after bridge rectifier, coordinated with MOVs to handle multi-pulse surge events. Use Value: 600W rating and 118 V clamping enable coordination with 150 V-rated electrolytics and 200 V MOSFETs, extending system MTBF in harsh outdoor environments. |
Use Scenario: Protecting -48 V telecom power distribution boards from accidental hot-swap transients and induced surges on backplane traces. IC Role / Device Role / Timing Role: Unidirectional clamp on -48 V rail referenced to system ground, suppressing fast-rising spikes from relay contact bounce or cable disconnect. Use Value: 73.8–90.2 V VBR ensures no conduction during normal -48 V operation while clamping >100 V transients within 1 ps-critical for preserving ASIC reset logic integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ85A | Bidirectional configuration; VBR = 85–94.4 V; VC = 137 V @ 4.4 A; same DO-214AC (SMA) package | Required where bidirectional protection (e.g., data lines, AC-coupled signals) is needed; not suitable for unidirectional DC rail use without redesign | Select SMAJ85A only if bipolar clamping is explicitly required; P6SMB82H offers lower VC and higher IPPM for DC rail protection |
| 1.5SMC82A | Same unidirectional function; VBR = 73.8–90.2 V; VC = 118 V @ 5.3 A; but larger DO-214AB (SMC) package (7.1 × 6.2 mm vs. SMB's 4.6 × 3.9 mm) | Compatible electrically but requires PCB layout change due to 2.5× larger footprint and higher thermal mass | Choose 1.5SMC82A only when higher thermal dissipation margin is critical and board space permits larger package |
Compared with SMAJ85A and 1.5SMC82A, the P6SMB82H delivers identical electrical protection performance in a smaller DO-214AA (SMB) footprint, enabling higher board density in space-constrained automotive and industrial modules without sacrificing AEC-Q101 compliance or 600W surge capability.
Availability
P6SMB82H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and LED driver designs requiring stable component supply, AEC-Q101 qualification, and consistent 600W transient suppression performance.
Supply support for P6SMB82H 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, and rectifiers with global automotive and industrial certifications.
The P6SMB82H belongs to TSC's AEC-Q101-qualified P6SMBxH series, engineered specifically for high-reliability DC power rail protection in automotive and industrial environments where compact size, fast response, and repeatable clamping are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB82H under standard test conditions?
The P6SMB82H has a maximum clamping voltage (VC) of 118 V when subjected to a 10/1000 µs peak pulse current of 5.3 A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage imposed on protected circuitry during a standardized surge event. The P6SMB82H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the P6SMB82H suitable for automotive applications requiring AEC-Q101 certification?
Yes, the P6SMB82H is explicitly AEC-Q101 qualified per the manufacturer's documentation and test reports. It undergoes stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101 standard, making it approved for use in automotive body control modules, infotainment power supplies, and ADAS sensor interface circuits. The P6SMB82H's DO-214AA package also meets JESD 201 Class 2 whisker resistance requirements.
How does the P6SMB82H differ from the P6SMB82AH variant?
The P6SMB82H has a breakdown voltage range of 73.8–90.2 V and is marked "MSJ", while the P6SMB82AH has a tighter VBR range of 77.9–86.1 V and is marked "MTJ". Both share identical package (DO-214AA), power rating (600 W), clamping voltage (118 V / 113 V), and thermal specs. The P6SMB82AH offers improved VBR tolerance for designs requiring tighter voltage margin control, whereas the P6SMB82H provides broader process allowance for cost-sensitive applications.
What is the reverse leakage current specification for the P6SMB82H at its rated standoff voltage?
The P6SMB82H exhibits a maximum reverse leakage current (ID) of 1 µA when biased at its rated standoff voltage (VWM) of 66.4 V and tested at 25 °C. This ultra-low leakage ensures minimal power loss in battery-backed systems and avoids interference with high-impedance sensor inputs or precision reference circuits. The P6SMB82H maintains <10 µA leakage even at +125 °C ambient per thermal derating curves.
Can the P6SMB82H be used in bidirectional transient protection applications?
No-the P6SMB82H is a unidirectional TVS diode intended for DC rail protection with defined anode-to-cathode polarity. For bidirectional protection (e.g., data lines, AC signals), Taiwan Semiconductor offers the P6SMB82CH or P6SMB82CAH variants, which feature symmetrical breakdown in both directions. Using the P6SMB82H in reverse-biased configurations outside its specified unidirectional operation risks premature failure or inconsistent clamping behavior.
P6SMB82H 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):
- 66.4V
- Voltage - Breakdown (Min):
- 73.8V
- Voltage - Clamping (Max) @ Ipp:
- 118V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- 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)
P6SMB82H FAQ
1.How can I place an order for P6SMB82H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82H 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 P6SMB82H reliable?
The price and inventory of P6SMB82H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82H is usually 5 days.
3.What payment methods are accepted for P6SMB82H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82H?
P6SMB82H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82H 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 P6SMB82H?
For technical support, including P6SMB82H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82H requirements.
6.How does Aetrix verify that P6SMB82H is sourced from the original manufacturer or authorized distributors?
All P6SMB82H 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 P6SMB82H meets industry standards.
7.What is the process for return or replacement of P6SMB82H?
All P6SMB82H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82H, 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 P6SMB82H part is unused and in its original packaging.
Return procedure for P6SMB82H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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