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Vishay General Semiconductor - Diodes Division P6SMB180CAHM3_A/H
- Part No.:
- P6SMB180CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB180CAHM3_A/H.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB180CAHM3_A/H 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 180 V standoff voltage (VWM), 246 V clamping voltage (VC) at 2.4 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the P6SMB180CAHM3_A/H datasheet, P6SMB180CAHM3_A/H pinout, P6SMB180CAHM3_A/H application, or P6SMB180CAHM3_A/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance enables rapid energy diversion without voltage overshoot.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. It meets J-STD-020 MSL Level 1 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified per ordering suffix HM3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (Breakdown) | 171–189 V at 1 mA - Verified breakdown threshold range ensuring consistent turn-on under ESD/surge events. |
| VC (Clamping) | 246 V at IPPM = 2.4 A - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for IC survivability. |
| PPPM | 600 W - Sustains high-energy surges (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| ID (Leakage) | <1.0 μA at 154 V - Negligible standby current draw; avoids loading sensitive analog or low-power circuits. |
| TJ max. | 150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Low-profile SMD footprint (4.57 mm × 3.94 mm) compatible with automated assembly and IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity required in PCB layout. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing symmetrical clamping path; enables placement across differential or single-ended lines without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for ADAS sensor ECUs and body control modules. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients such as load dump simulations and lightning-induced surges in industrial fieldbus nodes. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20 reflow profile compatibility up to 260 °C peak. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream components - critical for protecting 175 V-rated MOSFETs or 200 V capacitors. |
| MSL Level 1 moisture sensitivity | Unlimited floor life at ≤30 °C/60% RH; eliminates bake requirement prior to reflow soldering. |
Applications
| Automotive Sensor Protection | Industrial PLC Analog Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensors from ISO 7637-2 coupled transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity during 100 V/500 ms load dump events while preserving <1 μA leakage for accurate 12-bit ADC reference stability. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers exposed to motor drive noise and relay switching spikes. IC Role / Device Role / Timing Role: Primary overvoltage suppression element across input terminals, coordinated with series current-limiting resistors and filtering caps. Use Value: Clamps transients to ≤246 V within nanoseconds, preventing latch-up in op-amps and protecting precision instrumentation amplifiers. |
| Telecom Line Interface | Consumer Power Adapter EMI Filter |
|
Use Scenario: Front-end protection for Ethernet PHYs and PoE injectors subjected to IEC 61000-4-5 combination wave surges (10/700 μs). IC Role / Device Role / Timing Role: First-stage transient suppressor in multi-stage protection network, working with GDTs and common-mode chokes. Use Value: Limits let-through voltage to <250 V during 4 kV surges, enabling use of lower-voltage-rated isolation transformers and magnetics. |
Use Scenario: Secondary-side DC output protection in AC/DC adapters against capacitor discharge transients and hot-plug events. IC Role / Device Role / Timing Role: Fast-response clamp across +VOUT and GND to prevent overvoltage damage to USB-PD controllers and load switches. Use Value: Delivers 600 W surge handling without degradation after >1000 strikes, supporting 5-year consumer product warranty requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ180CA | Same VWM (154 V) and VC (246 V), but lower PPPM (400 W); SMA package (smaller thermal mass). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ±8 kV contact); not AEC-Q101 qualified. | Select when cost or board space is prioritized over automotive qualification and 600 W surge margin. |
| 1.5SMC180CA | Identical electrical specs (VWM, VBR, VC, PPPM), but larger SMC (DO-214AB) package with higher RθJA (60 °C/W vs. 100 °C/W). | Better thermal dissipation under sustained surge duty cycles; requires larger PCB footprint. | Choose when system-level thermal management favors higher steady-state power handling over compactness. |
Compared with SMAJ180CA and 1.5SMC180CA, P6SMB180CAHM3_A/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W rating - making it optimal for space-constrained automotive and industrial designs requiring validated reliability.
Availability
P6SMB180CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom line interface circuits requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for P6SMB180CAHM3_A/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, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in harsh environments - engineered specifically for AEC-Q101 compliance, low-profile SMT integration, and repeatable clamping performance across temperature and lifetime.
FAQ
What does the "CA" suffix indicate in P6SMB180CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration: P6SMB180CAHM3_A/H provides symmetrical clamping for both positive and negative transients, unlike unidirectional variants (e.g., P6SMB180AHM3_A/H). This eliminates polarity concerns during PCB placement and supports differential line protection without additional components. The CA variant is explicitly listed in Vishay's P6SMB datasheet Table 1 with verified VBR min/max and VC values.
Is P6SMB180CAHM3_A/H qualified to AEC-Q101?
Yes, P6SMB180CAHM3_A/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix per Vishay's ordering information table (page 3) and mechanical data section. The HM3 designation indicates halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - validated for automotive applications including temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD22-A114.
What is the maximum clamping voltage for P6SMB180CAHM3_A/H under surge conditions?
The maximum clamping voltage (VC) for P6SMB180CAHM3_A/H is 246 V, measured at a peak pulse current (IPPM) of 2.4 A with a 10/1000 μs waveform per Figure 1 and Table 1 of the Vishay datasheet (Document Number: 88370). This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Can P6SMB180CAHM3_A/H replace P6SMB180A in a design?
No - P6SMB180CAHM3_A/H is bidirectional, while P6SMB180A is unidirectional. Substituting them requires verifying circuit topology: unidirectional types require correct cathode orientation and cannot suppress negative transients alone. The CA variant enables symmetric protection without polarity constraints but has different leakage and capacitance profiles. Always validate layout and system-level surge response before replacement.
What is the thermal resistance of P6SMB180CAHM3_A/H, and how does it affect layout?
P6SMB180CAHM3_A/H 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 Thermal Characteristics table (page 3). To maintain safe junction temperatures under repeated surges, PCB layout must adhere to this minimum pad area - reducing copper area increases thermal impedance and risks exceeding the 150 °C TJ max rating during high-duty-cycle events.
P6SMB180CAHM3_A/H 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/H FAQ
1.How can I place an order for P6SMB180CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB180CAHM3_A/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 P6SMB180CAHM3_A/H reliable?
The price and inventory of P6SMB180CAHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for P6SMB180CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB180CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB180CAHM3_A/H?
P6SMB180CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB180CAHM3_A/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 P6SMB180CAHM3_A/H?
For technical support, including P6SMB180CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB180CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB180CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB180CAHM3_A/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 P6SMB180CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB180CAHM3_A/H?
All P6SMB180CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB180CAHM3_A/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 P6SMB180CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB180CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB180CAHM3_A/H Tags
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