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Vishay General Semiconductor - Diodes Division P6SMB82CAHM3_B/I
- Part No.:
- P6SMB82CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CAHM3_B/I.pdf
- Description:
- 600W,82V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,079
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Product details
Overview
P6SMB82CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 70.1 V standoff voltage (VWM), 77.9–86.1 V breakdown voltage (VBR at 1 mA), 113 V maximum clamping voltage (VC) at 5.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the P6SMB82CAHM3_B/I datasheet, P6SMB82CAHM3_B/I pinout, P6SMB82CAHM3_B/I application, or P6SMB82CAHM3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3_B suffix), SMB (DO-214AA) package compatibility, and compliance with IEC 61000-4-2/4-4/4-5 transient immunity requirements in harsh environments.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 μA at VWM), while the low incremental surge resistance supports fast energy absorption during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1, supporting lead-free reflow up to 260 °C peak. The HM3_B suffix confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction - validated for automotive under-hood and infotainment applications per stress test conditions including temperature cycling and HAST.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 70.1 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 77.9–86.1 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 113 V at 5.3 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capacity; enables robust protection against IEC 61000-4-5 4 kV surge tests. |
| IPPM (Peak Pulse Current) | 5.3 A - Maximum non-repetitive surge current supported; directly tied to PCB trace width and layout thermal design. |
| TJmax | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 3.94 mm footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 5.59 mm × 3.94 mm × 2.29 mm (L × W × H). Cathode band absent - bidirectional symmetry eliminates polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity across the device. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3_B) | Validated for automotive applications including engine control, ADAS sensors, and infotainment systems per stress test requirements. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 3 (2 kV line-to-line, 4 kV line-to-earth) surge immunity without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfacing with legacy analog circuits. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture-related popcorning or delamination risks. |
| Halogen-free & RoHS-compliant (HM3) | Fulfills EU ELV and China RoHS environmental mandates for automotive OEM supply chains. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, responding within <1 ns to suppress transients exceeding 70 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V microcontrollers and precision ADCs exposed to ±100 V spikes. |
Use Scenario: Shielding 24 V DC digital input channels in programmable logic controllers from inductive kickback caused by solenoid switching. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across input terminals, clamping voltage to ≤113 V during 500 ms 100 V surges. Use Value: Eliminates need for external series resistors or optocouplers in cost-sensitive industrial control designs. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links against lightning-induced surges on twisted-pair data lines. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to common ground, activated only during >70 V common-mode excursions. Use Value: Maintains signal integrity up to 20 Mbps while surviving repeated 4 kV contact discharge events per IEC 61000-4-2. |
Use Scenario: Adding secondary-level surge protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp limiting voltage overshoot during 8 kV air discharge ESD events. Use Value: Complements primary ESD diodes by absorbing residual energy that exceeds 15 kV HBM limits of integrated protection cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ85CA | 85 V VWM, 94.4–104.4 V VBR, 137 V VC at 4.4 A, same SMB package but lower PPPM (400 W). | Higher clamping voltage reduces margin for 3.3 V/5 V systems; suitable where 85 V system rail tolerance permits. | Select when lower cost and reduced surge energy (e.g., consumer-grade USB) outweigh tighter clamping needs. |
| SMCJ85CA | 85 V VWM, 94.4–104.4 V VBR, 137 V VC at 12.0 A, higher PPPM (1500 W), larger SMC (DO-214AB) package. | Requires PCB area increase (~25% larger footprint); better suited for high-energy industrial motor drives. | Choose for applications demanding >1000 W surge handling where board space allows SMC package integration. |
Compared with SMAJ85CA and SMCJ85CA, P6SMB82CAHM3_B/I delivers optimal balance of 600 W surge capability, 113 V clamping, AEC-Q101 qualification, and compact SMB footprint - making it preferred for space-constrained automotive and industrial edge nodes requiring certified reliability.
Availability
P6SMB82CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB82CAHM3_B/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - delivering consistent clamping performance across temperature and lifetime under repetitive surge stress.
FAQ
What does the "CA" suffix mean in P6SMB82CAHM3_B/I?
The "CA" suffix in P6SMB82CAHM3_B/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, unlike unidirectional "A" variants. This makes P6SMB82CAHM3_B/I ideal for protecting AC-coupled signals, differential buses like RS-485 or CAN, and any application where voltage polarity reversal is possible. The bidirectional behavior is intrinsic to the internal chip structure and requires no external circuit modification.
Is P6SMB82CAHM3_B/I suitable for automotive applications?
Yes, P6SMB82CAHM3_B/I is AEC-Q101 qualified (indicated by the HM3_B suffix), meaning it has passed rigorous stress testing including temperature cycling, humidity bias HAST, and mechanical shock - specifically for use in automotive electronic systems. It is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory. The device's 150 °C TJmax and MSL Level 1 rating further confirm its suitability for under-hood and infotainment applications.
How does the clamping voltage of P6SMB82CAHM3_B/I compare to its breakdown voltage?
P6SMB82CAHM3_B/I has a breakdown voltage (VBR) range of 77.9–86.1 V at 1 mA and a maximum clamping voltage (VC) of 113 V at 5.3 A (10/1000 μs). This yields a clamping ratio (VC/VBRmin) of approximately 1.42 - indicating tight, predictable voltage limiting during surge events. That ratio ensures protected downstream ICs experience minimal overvoltage stress, especially critical for 3.3 V or 5 V logic rails interfacing with higher-voltage analog or power domains.
What is the significance of the "HM3_B/I" suffix in P6SMB82CAHM3_B/I?
The "HM3_B/I" suffix in P6SMB82CAHM3_B/I encodes three critical attributes: "H" indicates tape-and-reel packaging on 13-inch reels, "M3" specifies halogen-free and RoHS-compliant construction, and "B" denotes AEC-Q101 qualification for automotive use. The "I" suffix confirms the reel quantity is 3200 units - enabling high-volume automated assembly. This full suffix ensures traceability, regulatory compliance, and application-specific validation required by Tier 1 automotive suppliers and industrial OEMs.
Can P6SMB82CAHM3_B/I replace older P6SMB82CA parts in existing designs?
Yes, P6SMB82CAHM3_B/I is a direct replacement for legacy P6SMB82CA variants in terms of electrical characteristics, SMB (DO-214AA) mechanical form factor, and soldering profile. Its AEC-Q101 qualification, halogen-free composition, and MSL Level 1 rating represent enhancements - not functional deviations - so no PCB layout or schematic changes are needed. Engineers may adopt P6SMB82CAHM3_B/I to meet updated automotive or environmental compliance requirements without redesigning protection circuitry.
P6SMB82CAHM3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB82CAHM3_B/I FAQ
1.How can I place an order for P6SMB82CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CAHM3_B/I 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 P6SMB82CAHM3_B/I reliable?
The price and inventory of P6SMB82CAHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB82CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CAHM3_B/I?
P6SMB82CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CAHM3_B/I 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 P6SMB82CAHM3_B/I?
For technical support, including P6SMB82CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB82CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB82CAHM3_B/I 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 P6SMB82CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB82CAHM3_B/I?
All P6SMB82CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CAHM3_B/I, 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 P6SMB82CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB82CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB82CAHM3_B/I Tags
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