My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB8.2AHM3_B/H
- Part No.:
- P6SMB8.2AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHM3_B/H.pdf
- Description:
- 600W,8.2V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,928
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB8.2AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 7.02 V stand-off voltage (VWM), and 12.1 V maximum clamping voltage (VC) at 49.6 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the P6SMB8.2AHM3_B/H datasheet, P6SMB8.2AHM3_B/H pinout, P6SMB8.2AHM3_B/H application, or P6SMB8.2AHM3_B/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), polarity marking convention, and real-world protection use cases - all confirmed from Vishay's official P6SMB Series specification document (Rev. 09-Jan-2024, Doc. #88370).
Technical Context
The P6SMB8.2AHM3_B/H operates as a unidirectional avalanche clamp with glass-passivated junction, responding in sub-nanosecond time to transient overvoltages. Its breakdown voltage (VBR) is specified at 7.79–8.61 V with 10 mA test current, and it maintains stable clamping up to 150 °C junction temperature.
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification - validated for automotive-grade reliability under repetitive surge stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.02 V - Maximum continuous reverse operating voltage before conduction; sets safe margin below system rail (e.g., 5 V or 12 V logic/sensor lines). |
| VBR @ IT = 10 mA | 7.79–8.61 V - Verified avalanche onset range; ensures predictable turn-on during transients without premature leakage. |
| VC @ IPPM = 49.6 A | 12.1 V - Clamped voltage during 600 W 10/1000 μs surge; defines worst-case overvoltage seen by protected downstream circuitry. |
| PPPM | 600 W - Peak pulse power handling per single transient; supports robust protection in motor drive and power supply input stages. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); enables compatibility with high-energy inductive kick events. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments and sealed industrial enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band at one end; anode is unmarked opposite end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connects to protected line (e.g., 12 V rail or sensor output); conducts surge current to ground when VIN exceeds VWM. |
| Anode (unmarked end) | Reference node | Typically tied to system ground or lower-potential return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3_B/H) | Validated for automotive applications including engine control units and body electronics - supports PPAP and long-term reliability requirements. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients from relay coil de-energization or load dump without degradation across >1000 surges. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during clamping - critical for safeguarding 3.3 V or 5 V logic interfaces with tight voltage tolerances. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure or bond degradation. |
| Glass-passivated junction | Provides stable leakage performance (<200 μA at VWM) and long-term stability under thermal cycling and humidity stress. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits transient voltage to ≤12.1 V, preventing latch-up or gate oxide damage in downstream 12 V tolerant ICs while supporting AEC-Q101 compliance. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable-induced transients in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before reaching ADC input or op-amp buffer. Use Value: Clamps 8 kV contact ESD pulses within nanoseconds while adding <0.5 pF parasitic capacitance - preserving signal integrity in 100 kHz bandwidth sensor channels. |
| DC Motor Drive Board Protection | Telecom Power Supply Input Stage |
Use Scenario: Suppressing inductive kickback from brushed DC motors in robotic actuators and HVAC blower modules. IC Role / Device Role / Timing Role: TVS placed across motor terminals or H-bridge high-side FET drain-source to absorb flyback energy during PWM commutation. Use Value: Handles 100 A non-repetitive forward surge (IFSM) and dissipates 600 W peaks - enabling reliable operation without snubber RC networks. |
Use Scenario: Guarding primary-side rectifier and controller ICs in AC/DC adapters against lightning-induced surges on 48 V telecom distribution lines. IC Role / Device Role / Timing Role: First-line unidirectional clamp on DC input rail upstream of bulk capacitor and PWM controller. Use Value: Maintains 7.02 V stand-off while clamping to 12.1 V - compatible with 15 V-rated input capacitors and 20 V-rated controllers, reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VWM (6.4 V), higher VC (13.6 V at 43.3 A), same SMB package but not AEC-Q101 qualified. | Commercial-grade only; unsuitable for automotive production where AEC-Q101 traceability is mandated. | Select SMAJ8.0A only for cost-sensitive consumer or industrial designs without automotive qualification requirements. |
| 1.5SMC8.2A | Same VWM (7.02 V) and VC (12.1 V), but larger SMC (DO-214AB) package (2.79 mm height vs. SMB's 2.20 mm), higher RθJA (75 °C/W). | Requires more PCB area and offers inferior thermal performance in dense layouts; lacks AEC-Q101 certification in standard grade. | Choose 1.5SMC8.2A only if higher surge endurance (>1000 surges) is needed and board space permits larger footprint. |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2AHM3_B/H uniquely combines AEC-Q101 qualification, low-profile SMB packaging, and verified 600 W clamping performance - making it the preferred choice for space-constrained, automotive-grade transient suppression where reliability documentation and reflow compatibility are mandatory.
Availability
P6SMB8.2AHM3_B/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, DC motor drive board hardening, and telecom power supply input staging requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB8.2AHM3_B/H 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under repetitive surge stress, automated assembly, and extended temperature operation.
FAQ
What is the exact breakdown voltage range for P6SMB8.2AHM3_B/H?
The P6SMB8.2AHM3_B/H has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, per Vishay's official P6SMB Series datasheet (Doc. #88370, Rev. 09-Jan-2024). This range reflects manufacturing tolerance and ensures consistent avalanche initiation across production lots. The P6SMB8.2AHM3_B/H maintains this specification under standard test conditions (TA = 25 °C) and is validated for use in both commercial and AEC-Q101 automotive applications.
Is P6SMB8.2AHM3_B/H suitable for bidirectional transient protection?
No, the P6SMB8.2AHM3_B/H is a unidirectional TVS diode - indicated by the "A" suffix and absence of "CA" in the part number. It conducts only in reverse bias (cathode positive) and must be oriented with the banded end toward the protected line. For bidirectional protection, Vishay specifies variants like P6SMB8.2CA; using P6SMB8.2AHM3_B/H in bidirectional configurations risks forward conduction and failure. Always verify polarity during layout for the P6SMB8.2AHM3_B/H.
Does P6SMB8.2AHM3_B/H meet AEC-Q101 requirements?
Yes, the "HM3_B/H" suffix explicitly denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification - confirmed in Vishay's ordering information table (page 3, Doc. #88370). This includes stress testing for temperature cycling, humidity bias, mechanical shock, and surge endurance per AEC-Q101 Rev D. The P6SMB8.2AHM3_B/H is approved for use in automotive powertrain, chassis, and body electronics where qualification evidence is contractually required.
What is the maximum clamping voltage of P6SMB8.2AHM3_B/H under surge conditions?
The P6SMB8.2AHM3_B/H clamps to a maximum of 12.1 V when subjected to its rated peak pulse current of 49.6 A (10/1000 μs waveform), as specified in the Electrical Characteristics table (page 2, Doc. #88370). This value represents worst-case voltage seen by protected circuitry during standardized surge testing and is measured at TA = 25 °C. Derating applies above ambient temperature per Fig. 2 in the same datasheet.
How does the SMB package of P6SMB8.2AHM3_B/H compare to SOD-123 or DO-214AC?
The SMB (DO-214AA) package of P6SMB8.2AHM3_B/H measures 4.57 mm × 3.94 mm × 2.20 mm - larger than SOD-123 (2.7 mm × 1.7 mm) but smaller than DO-214AC (SMC, 6.22 mm × 4.57 mm). Its 100 °C/W thermal resistance requires minimum 0.2" × 0.2" copper pads per terminal (per datasheet note), unlike SOD-123's lower power rating. The P6SMB8.2AHM3_B/H's SMB footprint balances surge capability and board space - making it incompatible with SOD-123 land patterns and mechanically distinct from DO-214AC.
P6SMB8.2AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB8.2AHM3_B/H FAQ
1.How can I place an order for P6SMB8.2AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHM3_B/H 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 P6SMB8.2AHM3_B/H reliable?
The price and inventory of P6SMB8.2AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHM3_B/H?
P6SMB8.2AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHM3_B/H 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 P6SMB8.2AHM3_B/H?
For technical support, including P6SMB8.2AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB8.2AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHM3_B/H 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 P6SMB8.2AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHM3_B/H?
All P6SMB8.2AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHM3_B/H, 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 P6SMB8.2AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB8.2AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHM3_B/H 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
