My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB180CAHM3_A/I
- Part No.:
- P6SMB180CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180CAHM3_A/I.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,831
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB180CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 154 V standoff voltage (VWM), 171–189 V breakdown voltage (VBR) at 1 mA, 246 V maximum clamping voltage (VC) at 2.4 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line cards.
For engineers reviewing the P6SMB180CAHM3_A/I datasheet, P6SMB180CAHM3_A/I pinout, P6SMB180CAHM3_A/I application, or P6SMB180CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with J-STD-020 MSL Level 1 reflow profile (260 °C peak).
Technical Context
This device operates as a voltage-clamped shunt protector: during transient events exceeding VWM (154 V), it avalanches symmetrically in both directions to limit voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 μA at VWM), while the low incremental surge resistance enables effective energy diversion without thermal runaway.
The P6SMB180CAHM3_A/I is rated for repetitive 10/1000 μs pulses at 0.01 % duty cycle and supports continuous power dissipation of 5.0 W at TA = 50 °C on infinite heatsink. Junction temperature range spans −65 °C to +150 °C, and its halogen-free, RoHS-compliant construction meets automotive-grade reliability per AEC-Q101 (HM3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 154 V - Maximum continuous reverse voltage before clamping initiates; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 171–189 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on under transients. |
| VC (Clamping Voltage) | 246 V at IPPM = 2.4 A - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capacity per standard 10/1000 μs waveform. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; dictates derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TC, HTRB. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking - bidirectional configuration confirmed by CA suffix and symmetric electrical characteristics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical bidirectional clamping behavior; either terminal serves as input or return path for surge current. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy ESD and lightning-induced surges common in industrial fieldbus and telecom interfaces. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body control modules and ADAS sensor front-ends. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements. |
| Low leakage (<1 μA at VWM) | Minimizes standby power loss and avoids false triggering in high-impedance monitoring circuits. |
Applications
| Automotive Sensor Interface | Industrial Fieldbus Protection |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers from load dump and ISO 7637-2 pulse 5a transients in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp induced surges before reaching transceiver IC. Use Value: Maintains signal integrity under 12 V/24 V system transients up to 150 V, leveraging 154 V VWM margin and 246 V VC clamping. |
Use Scenario: Safeguarding RS-485 nodes in factory automation against ground loop surges and EFT bursts. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pair (A/B) and shield to suppress common-mode transients. Use Value: Symmetric 171–189 V VBR ensures equal response to positive/negative surges, critical for full-duplex communication links. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection of DSL or PoE-powered Ethernet ports exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt limiter on DC input rail (e.g., 48 V PoE), coordinated with upstream fuse and downstream DC-DC converter. Use Value: 600 W PPPM rating handles IEC 61000-4-5 combination wave (10/700 μs) with margin, verified via 10/1000 μs correlation. |
Use Scenario: Overvoltage clamp on AC-DC adapter primary-side rectified output before bulk capacitor. IC Role / Device Role / Timing Role: Secondary-level transient suppressor complementing MOV-based primary protection. Use Value: Low leakage (<1 μA) prevents capacitor discharge drift; 150 °C TJ max supports enclosed, thermally constrained adapter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | Same VWM (154 V), VBR (171–189 V), and VC (246 V); identical SMB package but non-AEC-Q101 commercial grade (E3/M3 suffix). | Lacks automotive qualification; suitable for industrial/commercial systems where AEC-Q101 is not mandated. | Select SMBJ180CA when cost sensitivity outweighs automotive reliability requirements and MSL Level 1 compatibility remains essential. |
| 1.5SMC180CA | Higher package thermal resistance (RθJA ≈ 125 °C/W vs. 100 °C/W); same electrical specs but larger SMC (DO-214AB) footprint. | Requires PCB layout change; better suited for higher-power derating scenarios where SMB thermal limits are exceeded. | Choose 1.5SMC180CA only if sustained surge repetition demands lower junction temperature rise, accepting larger board area and rework. |
Compared with SMBJ180CA and 1.5SMC180CA, the P6SMB180CAHM3_A/I uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and 100 °C/W thermal performance - making it optimal for space-constrained automotive and industrial designs requiring validated reliability.
Availability
P6SMB180CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus nodes, and telecom line card surge protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for P6SMB180CAHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for fast response, repeatable clamping, and robustness under harsh thermal and electrical stress.
FAQ
What does the "CA" suffix indicate in P6SMB180CAHM3_A/I?
The "CA" suffix in P6SMB180CAHM3_A/I denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both polarities. This eliminates the need to observe polarity during placement and makes it ideal for protecting AC-coupled lines, differential buses like RS-485 or CAN, and floating sensor inputs where voltage transients may swing positive or negative relative to ground. The P6SMB180CAHM3_A/I achieves this via a back-to-back diode structure internal to the SMB package.
Is P6SMB180CAHM3_A/I suitable for automotive applications?
Yes, P6SMB180CAHM3_A/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and high-temperature reverse bias (HTRB), validating its suitability for under-hood and cabin-mounted automotive electronics such as body control modules, ADAS sensor interfaces, and infotainment power rails.
What is the maximum clamping voltage of P6SMB180CAHM3_A/I and how is it measured?
The maximum clamping voltage (VC) of P6SMB180CAHM3_A/I is 246 V, measured at a peak pulse current (IPPM) of 2.4 A using the standardized 10/1000 μs double-exponential waveform. This value represents the highest voltage that will appear across the device terminals during a worst-case transient event, directly limiting the stress imposed on downstream components. It is specified at TA = 25 °C and must be derated at elevated ambient temperatures per Figure 2 in the Vishay datasheet.
How does the SMB (DO-214AA) package of P6SMB180CAHM3_A/I compare thermally to larger packages like SMC?
The SMB (DO-214AA) package of P6SMB180CAHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, which is lower than the ~125 °C/W of the larger SMC (DO-214AB) package used in alternatives like 1.5SMC180CA. This means the P6SMB180CAHM3_A/I achieves more efficient heat dissipation per unit board area - critical for compact layouts - though absolute power handling remains limited to 5.0 W at TA = 50 °C on infinite heatsink, requiring careful thermal design in high-duty-cycle applications.
Does P6SMB180CAHM3_A/I require special PCB layout considerations?
Yes, P6SMB180CAHM3_A/I requires adherence to Vishay's recommended mounting pad layout: 0.205" × 0.220" (5.21 mm × 5.59 mm) copper pads per terminal, as specified in the datasheet. These dimensions optimize thermal conduction and surge current handling. Deviating from this layout - especially reducing pad size - increases thermal resistance and reduces peak pulse current capability. Additionally, minimize trace inductance by placing the device as close as possible to the protected port or connector.
P6SMB180CAHM3_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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 2.4A
- 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)
P6SMB180CAHM3_A/I FAQ
1.How can I place an order for P6SMB180CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180CAHM3_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 P6SMB180CAHM3_A/I reliable?
The price and inventory of P6SMB180CAHM3_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 P6SMB180CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB180CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180CAHM3_A/I?
P6SMB180CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180CAHM3_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 P6SMB180CAHM3_A/I?
For technical support, including P6SMB180CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB180CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB180CAHM3_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 P6SMB180CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB180CAHM3_A/I?
All P6SMB180CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180CAHM3_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 P6SMB180CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB180CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180CAHM3_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
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…
