My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB8.2CAHM3/I
- Part No.:
- P6SMB8.2CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHM3/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,829
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB8.2CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage (VC) at 49.6 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB8.2CAHM3/I datasheet, P6SMB8.2CAHM3/I pinout, P6SMB8.2CAHM3/I application, or P6SMB8.2CAHM3/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both polarities due to its bidirectional construction. Its glass-passivated junction ensures stable leakage (<200 μA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
Rated for -65 °C to +150 °C operating junction temperature, it delivers 600 W peak pulse power under JEDEC-standard 10/1000 μs waveform with 0.01% duty cycle. The SMB package supports automated placement and meets UL 94 V-0 flammability rating, while matte tin-plated terminals comply with J-STD-002 solderability and JESD 22-B102 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.02 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 7.79–8.61 V at 10 mA - Confirmed voltage range where device enters avalanche conduction; tight tolerance enables predictable clamping onset. |
| VC (Clamping Voltage) | 12.1 V at 49.6 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge; critical for IC-level overvoltage margining. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capacity per single event; validated per Fig. 1 derating curve. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; determines thermal rise under repetitive surge conditions. |
| TJ max. | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode/anode terminals are symmetric and interchangeable in bidirectional mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetric) | Transient current path | Both terminals serve identical roles in bidirectional clamping; no polarity dependency allows flexible PCB routing. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and leakage performance in both directions - eliminates need for orientation-aware layout. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces requiring long-term reliability. |
| Halogen-free & RoHS-compliant | HM3 suffix denotes halogen-free molding compound and lead-free matte tin terminations - compliant with IPC-J-STD-609. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/85% RH - enables direct placement without baking or dry pack handling. |
| 600 W peak pulse power | Robust surge immunity against IEC 61000-4-5 Level 4 (4 kV) and ISO 7637-2 Pulse 1/2a/3a events on 12 V systems. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt transients before reaching PHY layer. Use Value: Maintains signal integrity under ±15 kV contact ESD (IEC 61000-4-2) and 100 V/50 ms load dump (ISO 7637-2 Pulse 5a) without latch-up or degradation. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated input channels, coordinated with optocoupler input stage. Use Value: Limits clamped voltage to <12.1 V during 40 A surge events, ensuring downstream Schmitt-trigger inputs remain within safe logic thresholds. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Surge protection on RS-485/RS-232 data lines in base stations and network equipment exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Differential-mode TVS pair across A/B lines, referenced to local ground plane with low-inductance layout. Use Value: Clamps 1 kV/0.5 μs ring wave transients to <15 V peak, preserving data integrity and preventing receiver IC damage. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Across-motor terminals to absorb back-EMF during MOSFET switch-off transitions. Use Value: Absorbs 600 W peak energy without failure, extending MOSFET lifetime and eliminating need for snubber RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | Unidirectional variant with same VWM/VC but asymmetric conduction; lacks bidirectional symmetry. | Requires polarity-aware layout; unsuitable for AC-coupled or floating differential lines. | Select only when unidirectional protection suffices and board space permits discrete anode/cathode routing. |
| 1.5SMC8.2CA | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 60 °C/W vs. 100 °C/W. | Better thermal performance but occupies ~2.5× PCB area; not drop-in compatible with SMB footprints. | Choose when higher surge repetition rate or lower thermal resistance is required and layout allows larger footprint. |
Compared with SMAJ8.0CA and 1.5SMC8.2CA, P6SMB8.2CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, SMB footprint efficiency, and true bidirectional symmetry - making it optimal for space-constrained automotive and industrial designs requiring zero-orientation assembly and high-reliability surge immunity.
Availability
P6SMB8.2CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor drive circuits requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB8.2CAHM3/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom systems, engineered for robustness under harsh environmental stress and compatibility with automated manufacturing processes.
FAQ
What is the clamping voltage of P6SMB8.2CAHM3/I at its rated peak pulse current?
The P6SMB8.2CAHM3/I has a maximum clamping voltage (VC) of 12.1 V at 49.6 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB8.2CAHM3/I suitable for automotive applications?
Yes, P6SMB8.2CAHM3/I is AEC-Q101 qualified (denoted by HM3 suffix), having passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per automotive reliability standards. It is explicitly recommended for engine control units, body electronics, and ADAS sensor interfaces where sustained operation at 150 °C junction temperature and immunity to load dump transients are required.
Does P6SMB8.2CAHM3/I require polarity-aware PCB layout?
No, P6SMB8.2CAHM3/I is a bidirectional TVS diode with symmetric electrical characteristics in both directions - meaning it provides identical VBR, VC, and leakage performance regardless of terminal orientation. The device carries no polarity marking, and its SMB package allows zero-orientation placement, simplifying automated assembly and reducing layout constraints.
What is the thermal resistance of P6SMB8.2CAHM3/I under standard mounting conditions?
The P6SMB8.2CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This value governs temperature rise during repetitive surge events and must be factored into thermal design when operating near maximum power dissipation limits.
How does the HM3 suffix affect the compliance profile of P6SMB8.2CAHM3/I?
The HM3 suffix on P6SMB8.2CAHM3/I indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2. It also confirms AEC-Q101 qualification for automotive use - distinguishing it from commercial-grade M3 or E3 variants that lack automotive reliability validation.
P6SMB8.2CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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)
P6SMB8.2CAHM3/I FAQ
1.How can I place an order for P6SMB8.2CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHM3/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 P6SMB8.2CAHM3/I reliable?
The price and inventory of P6SMB8.2CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHM3/I?
P6SMB8.2CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHM3/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 P6SMB8.2CAHM3/I?
For technical support, including P6SMB8.2CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHM3/I requirements.
6.How does Aetrix verify that P6SMB8.2CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHM3/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 P6SMB8.2CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHM3/I?
All P6SMB8.2CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHM3/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 P6SMB8.2CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
