My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB12AHM3_A/I
- Part No.:
- P6SMB12AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12AHM3_A/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,477
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB12AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 12 V breakdown voltage (VBR = 11.4–12.6 V at IT = 1.0 mA), 16.7 V maximum clamping voltage (VC) at 35.9 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in industrial and automotive electronics.
For engineers reviewing the P6SMB12AHM3_A/I datasheet, P6SMB12AHM3_A/I pinout, P6SMB12AHM3_A/I application, or P6SMB12AHM3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping performance under surge, and halogen-free RoHS-compliant construction - all critical for robust overvoltage protection design-in.
Technical Context
This TVS diode operates as a unidirectional clamping device: reverse-biased during normal operation (leakage < 5.0 μA at VWM = 10.2 V), then rapidly avalanches to limit transient voltages above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and supports repetitive 0.01% duty-cycle surges. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction - validated for automotive-grade reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA - defines precise avalanche initiation window for predictable clamping onset |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 μA |
| VC @ IPPM | 16.7 V at 35.9 A - clamped voltage during 600 W transient, limiting downstream stress on protected ICs |
| PPPM | 600 W (10/1000 μs) - peak surge energy handling capacity without failure |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, guiding PCB copper pad sizing for thermal management |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive or industrial enclosures |
| AEC-Q101 | Qualified - certified for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional configuration; enables forward surge current path up to 100 A (8.3 ms half-sine) |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., CAN_H, sensor VOUT, MCU I/O); avalanche conduction begins here when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in automotive ECUs |
| 16.7 V clamping at 35.9 A | Keeps protected IC supply rails below absolute maximum ratings during 10/1000 μs surges |
| AEC-Q101 qualified (HM3) | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standards |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door actuator drivers from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN data line and ground, clamping transients before they reach the transceiver's ESD structure. Use Value: Prevents latch-up or permanent damage to LIN PHY ICs during battery disconnect events, ensuring functional safety compliance (ISO 11898-4). | Use Scenario: Safeguarding analog output (4–20 mA) and digital I/O lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff voltage (10.2 V) isolates normal 24 V loop supply while clamping induced spikes from relay coil switching. Use Value: Maintains sensor signal integrity and avoids false readings or controller resets caused by >1 kV transients on field wiring. |
| Consumer Power Adapter Input Stage | Telecom Base Station DC Power Rail |
Use Scenario: Secondary-side overvoltage suppression on 5–12 V DC outputs of wall adapters exposed to lightning-induced surges via connected devices. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping element placed across output capacitor terminals. Use Value: Limits transient overshoot to ≤16.7 V, preventing damage to USB-PD controllers or downstream PMICs rated for 18 V max input. | Use Scenario: Protecting 48 V DC-DC converter inputs in outdoor telecom cabinets subjected to AC mains coupling and electrostatic discharge. IC Role / Device Role / Timing Role: Primary transient suppressor on 48 V rail upstream of point-of-load regulators, absorbing up to 600 W surges. Use Value: Extends system uptime by eliminating field failures due to repeated exposure to EN 61000-4-5 Level 4 surges (4 kV line-earth). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5B | Same VBR range (11.4–12.6 V), but 400 W PPPM and SMA package (higher RθJA = 140 °C/W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or 600 W surge margin |
| 1.5SMC12A | Same 600 W rating and VBR, but SMC (DO-214AB) package - larger footprint and higher thermal mass | Better thermal dissipation (RθJA ≈ 65 °C/W), but incompatible with dense SMB layouts | Choose when board space allows and junction temperature rise must stay < 30 °C under repeated surges |
Compared with SMAJ12A-E3/5B and 1.5SMC12A, P6SMB12AHM3_A/I uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and full 600 W surge capability - making it optimal for space-constrained automotive and industrial designs requiring certified reliability.
Availability
P6SMB12AHM3_A/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer power adapter protection, and telecom DC power rail hardening requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB12AHM3_A/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 high-reliability and automotive-grade solutions.
The P6SMB series targets robust transient suppression in harsh environments; engineered for AEC-Q101 compliance, high surge immunity, and automated SMT assembly in automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance of P6SMB12AHM3_A/I?
The P6SMB12AHM3_A/I has a specified breakdown voltage (VBR) range of 11.4 V to 12.6 V at test current IT = 1.0 mA, representing ±5% tolerance around the nominal 12 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margins in safety-critical circuits where overvoltage thresholds must be precisely controlled.
Is P6SMB12AHM3_A/I suitable for automotive applications?
Yes, P6SMB12AHM3_A/I is AEC-Q101 qualified (denoted by the HM3 suffix), meaning it has passed rigorous stress tests including temperature cycling, high-temperature operating life, and mechanical shock per JEDEC standards. It is explicitly designed for automotive use cases such as body control modules, infotainment power supplies, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory.
What does the "HM3" suffix indicate in P6SMB12AHM3_A/I?
The "HM3" suffix in P6SMB12AHM3_A/I signifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., E3/M3) and confirms compliance with automotive environmental and reliability requirements - including material content restrictions, whisker resistance (JESD 201 Class 2), and extended temperature operation up to +150 °C junction temperature.
How does P6SMB12AHM3_A/I compare to bidirectional TVS diodes like P6SMB12CA?
P6SMB12AHM3_A/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., 12 V supply rail to ground), offering lower leakage (< 5.0 μA at 10.2 V) and forward conduction capability. In contrast, P6SMB12CA is bidirectional and suited for AC or differential signal lines (e.g., RS-485), but exhibits higher reverse leakage and no forward surge rating. The choice depends on circuit topology and signal polarity requirements.
What is the maximum clamping voltage of P6SMB12AHM3_A/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB12AHM3_A/I is 16.7 V at peak pulse current IPPM = 35.9 A, measured with a 10/1000 μs waveform. This value represents the highest voltage the device allows across its terminals during a standardized surge event, directly determining the protection level afforded to downstream components such as microcontrollers or communication transceivers connected to the same rail.
P6SMB12AHM3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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)
P6SMB12AHM3_A/I FAQ
1.How can I place an order for P6SMB12AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12AHM3_A/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 P6SMB12AHM3_A/I reliable?
The price and inventory of P6SMB12AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB12AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12AHM3_A/I?
P6SMB12AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12AHM3_A/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 P6SMB12AHM3_A/I?
For technical support, including P6SMB12AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB12AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12AHM3_A/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 P6SMB12AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB12AHM3_A/I?
All P6SMB12AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12AHM3_A/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 P6SMB12AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB12AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12AHM3_A/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 …
