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Vishay General Semiconductor - Diodes Division P6SMB120CAHM3/H
- Part No.:
- P6SMB120CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAHM3/H.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,130
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Product details
Overview
P6SMB120CAHM3/H 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 or power lines. It features a 102 V stand-off voltage (VWM), 114–126 V breakdown voltage (VBR) at 1 mA test current, 165 V maximum clamping voltage (VC) at 3.6 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB120CAHM3/H datasheet, P6SMB120CAHM3/H pinout, P6SMB120CAHM3/H application, or P6SMB120CAHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), polarity configuration for bidirectional operation, and real-world protection use cases aligned 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 without requiring orientation-specific PCB layout. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (260 °C peak reflow), supporting automated SMT assembly. Its halogen-free, RoHS-compliant construction (HM3 suffix) and AEC-Q101 qualification confirm suitability for automotive under-hood and infotainment systems where reliability under thermal cycling and vibration is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 114–126 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during overvoltage events. |
| VC (Clamping) | 165 V at IPPM = 3.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM | 600 W - Surge energy handling capacity with standard 10/1000 μs waveform; supports repetitive 0.01% duty cycle. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive applications per stress test requirements including HTOL, TC, and HTRB. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Bidirectional configuration has no polarity marking; symmetrical terminal function.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band marking required for bidirectional operation. |
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 | Handles IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation when mounted per recommended pad layout. |
| AEC-Q101 qualified (HM3) | Validated for automotive-grade reliability including temperature cycling, high-temperature operating life, and unbiased HAST. |
| MSL Level 1 (260 °C) | Supports lead-free reflow without popcorn cracking or delamination; no pre-bake required prior to assembly. |
| Low leakage (<1.0 μA) | Minimizes standby power loss and avoids false triggering in high-impedance sensor interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed directly at connector interface before signal conditioning circuitry. Use Value: Limits induced surge voltage to ≤165 V, preserving integrity of 5 V or 3.3 V rail-powered sensors and transceivers. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring transients caused by relay coil de-energization. IC Role / Device Role / Timing Role: Primary surge suppression element on 24 V DC input channels, located adjacent to terminal block. Use Value: Withstands 600 W pulses without failure, maintaining functional safety compliance for SIL2-rated systems. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHY interfaces and PoE injectors against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level TVS on differential data lines, coordinated with common-mode chokes and primary MOVs. Use Value: Clamps common-mode transients to <170 V while adding <0.5 pF capacitance, avoiding signal integrity degradation at 100BASE-TX speeds. |
Use Scenario: Protecting USB-C PD output rails and secondary-side synchronous rectifiers in compact AC/DC adapters. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter after regulation, absorbing residual switching spikes and hot-plug transients. Use Value: Halogen-free HM3 construction meets IEC 62368-1 flammability and environmental compliance for end-user devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120CA | Same VWM (102 V), VC = 165 V, but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for automotive load dump where 600 W margin is required. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ±8 kV contact discharge only. |
| SMCJ120CA | Same VWM and VC, but higher PPPM (1500 W); larger SMC (DO-214AB) package with lower RθJA (35 °C/W). | Overqualified for most 24 V/48 V systems; requires more PCB area and may not fit tight connector footprints. | Choose when protecting high-power motor drives or battery management systems exposed to repeated 10/1000 μs surges >1 kA. |
Compared with SMAJ120CA and SMCJ120CA, P6SMB120CAHM3/H delivers optimal balance of 600 W surge rating, SMB footprint compatibility, AEC-Q101 qualification, and thermal performance - making it the preferred choice for space-constrained automotive and industrial modules requiring validated reliability without over-engineering.
Availability
P6SMB120CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB120CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The P6SMB Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, low clamping voltage, and repeatable surge endurance are mandatory.
FAQ
What is the clamping voltage of P6SMB120CAHM3/H under a 10/1000 μs surge?
The P6SMB120CAHM3/H exhibits a maximum clamping voltage (VC) of 165 V when subjected to its rated peak pulse current of 3.6 A using the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC guidelines and represents the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB120CAHM3/H suitable for automotive applications?
Yes, P6SMB120CAHM3/H is AEC-Q101 qualified (denoted by the HM3 suffix), confirming compliance with automotive stress tests including high-temperature operating life, temperature cycling, and humidity testing. Its halogen-free, RoHS-compliant construction and MSL Level 1 reflow rating further support use in engine control units, body electronics, and ADAS sensor modules where reliability under thermal and mechanical stress is essential.
How does the bidirectional design of P6SMB120CAHM3/H affect PCB layout?
The bidirectional configuration of P6SMB120CAHM3/H eliminates polarity marking - both terminals are functionally identical, allowing placement without orientation constraints. This simplifies layout for AC-coupled lines, differential pairs, or floating grounds, reduces assembly errors, and avoids the need for duplicate unidirectional devices. No cathode band is present, and schematic symbols must reflect symmetrical connection.
What is the maximum operating temperature for P6SMB120CAHM3/H?
P6SMB120CAHM3/H has a maximum junction temperature (TJ max.) of +150 °C, enabling reliable operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. Derating of peak pulse power begins above 25 °C ambient per Figure 2 in the datasheet, with 50% power capability retained at +100 °C case temperature when mounted per recommended pad layout.
Does P6SMB120CAHM3/H meet RoHS and halogen-free requirements?
Yes, the HM3 suffix in P6SMB120CAHM3/H explicitly indicates halogen-free, RoHS-compliant construction per Vishay's material categorization standard (www.vishay.com/doc?99912). The device uses matte tin-plated leads and UL 94 V-0 molding compound, satisfying environmental compliance mandates for automotive, industrial, and consumer electronics sold in EU, China, and other regulated markets.
P6SMB120CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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)
P6SMB120CAHM3/H FAQ
1.How can I place an order for P6SMB120CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAHM3/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 P6SMB120CAHM3/H reliable?
The price and inventory of P6SMB120CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB120CAHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB120CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAHM3/H?
P6SMB120CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAHM3/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 P6SMB120CAHM3/H?
For technical support, including P6SMB120CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAHM3/H requirements.
6.How does Aetrix verify that P6SMB120CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAHM3/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 P6SMB120CAHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB120CAHM3/H?
All P6SMB120CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAHM3/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 P6SMB120CAHM3/H part is unused and in its original packaging.
Return procedure for P6SMB120CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120CAHM3/H Tags
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