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Vishay General Semiconductor - Diodes Division P6SMB9.1CAHM3_B/H
- Part No.:
- P6SMB9.1CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1CAHM3_B/H.pdf
- Description:
- 600W,9.1V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,643
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Product details
Overview
P6SMB9.1CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power with 10/1000 μs waveform, 9.1 V breakdown voltage (VBR min/max = 8.65–9.55 V at IT = 1.0 mA), and 13.4 V maximum clamping voltage (VC) at IPPM. It protects signal lines and power rails in automotive sensor units, industrial control interfaces, and telecom front-end circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB9.1CAHM3_B/H datasheet, P6SMB9.1CAHM3_B/H pinout, P6SMB9.1CAHM3_B/H application, or P6SMB9.1CAHM3_B/H equivalent, this device delivers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive surge conditions - critical for automotive-grade board-level transient protection design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VWM = 7.78 V, VBR = 8.65–9.55 V, and VC = 13.4 V at IPPM = 44.8 A. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of fast-rising transients such as ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4).
Designed for surface-mount assembly on standard PCB pads (0.2" × 0.2"), it features glass-passivated junctions, matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102, and thermal resistance RθJA = 100 °C/W. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 8.65–9.55 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| Stand-off Voltage VWM | 7.78 V - maximum continuous reverse working voltage before leakage exceeds 50 μA; sets safe operating margin below VBR |
| Clamping Voltage VC | 13.4 V at 44.8 A peak pulse - limits transient voltage seen by protected IC to ≤13.4 V during 600 W surge |
| Peak Pulse Power PPPM | 600 W with 10/1000 μs waveform - sustains high-energy surges without failure under standardized lightning/inductive test conditions |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline (5.59 mm × 3.94 mm × 2.20 mm) enabling automated placement and 0.2" copper pad thermal management |
| AEC-Q101 Qualified | Yes - validated for automotive applications including engine control modules, ADAS sensors, and infotainment power rails |
| Moisture Sensitivity | MSL Level 1 (260 °C peak reflow) - supports lead-free soldering without preconditioning or dry-pack requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts avalanche current in either direction when voltage exceeds ±VBR |
| Case (body) | Thermal and mechanical interface | No electrical connection; transfers heat to PCB copper pads (0.2" × 0.2" per terminal recommended) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485, USB D+/D−) without polarity concerns |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 Ω source impedance) surges without degradation |
| AEC-Q101 qualification | Validated for automotive temperature cycling (-40 °C to +125 °C), humidity storage, and mechanical shock per JESD22 standards |
| Halogen-free & RoHS | Meets EU Directive 2011/65/EU and JEDEC JS709E; eliminates brominated flame retardants while maintaining UL 94 V-0 flammability rating |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes overvoltage stress on downstream components - critical for protecting 3.3 V or 5 V logic interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to shunt transients before reaching ADC input or signal conditioner IC. Use Value: Clamps 13.4 V max during 44.8 A surge, preserving sensor accuracy and preventing latch-up in 5 V rail-connected signal chains. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection element on 24 V DC inputs, absorbing repetitive switching transients from solenoid valves and contactors. Use Value: Withstands 600 W pulses at 0.01% duty cycle, enabling long-term reliability without derating in high-noise industrial cabinets. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY or xDSL line drivers against lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: Primary protection stage ahead of GDT or polymer PTC, limiting let-through voltage to downstream TVS arrays. Use Value: Fast <1 ns response ensures clamping initiates before secondary protectors activate, reducing total clamping time by >30%. |
Use Scenario: Preventing ESD damage to USB 2.0 data lines (D+/D−) in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor placed adjacent to USB connector, minimizing signal integrity impact. Use Value: 13.4 V clamping voltage prevents gate oxide rupture in 3.3 V USB transceivers while meeting IEC 61000-4-2 ±15 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Unidirectional; VBR = 9.0–10.0 V; VC = 14.4 V at 41.7 A; same SMB package | Requires external polarity awareness; unsuitable for AC or differential lines without additional circuitry | Select only if unidirectional operation is acceptable and layout allows cathode orientation control. |
| SMCJ9.0CA | Bidirectional; higher PPPM = 1500 W; VBR = 9.0–10.0 V; VC = 14.4 V at 104 A; larger SMC (DO-214AB) package | Offers higher surge capacity but requires 2.5× more PCB area and different pad layout | Choose when system-level surge testing exceeds 600 W or when legacy SMC footprint is fixed. |
Compared with SMAJ9.0A and SMCJ9.0CA, P6SMB9.1CAHM3_B/H uniquely balances AEC-Q101 qualification, SMB footprint efficiency, and bidirectional 600 W capability - making it optimal for space-constrained automotive and industrial edge nodes where polarity-agnostic protection and process compatibility are mandatory.
Availability
P6SMB9.1CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply, AEC-Q101 validation, and halogen-free compliance.
Supply support for P6SMB9.1CAHM3_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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P6SMB Series targets board-level transient suppression in harsh environments, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 variants for automotive electronics.
FAQ
What does the "CA" suffix indicate in P6SMB9.1CAHM3_B/H?
The "CA" suffix in P6SMB9.1CAHM3_B/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions, with identical VBR, VWM, and VC ratings. This eliminates polarity marking on the SMB package and simplifies layout for AC-coupled or differential signal paths. P6SMB9.1CAHM3_B/H is not polarity-sensitive and functions identically regardless of terminal orientation.
Is P6SMB9.1CAHM3_B/H suitable for automotive applications?
Yes, P6SMB9.1CAHM3_B/H is AEC-Q101 qualified (as indicated by the "HM3_B" suffix), tested for temperature cycling, humidity exposure, mechanical shock, and high-temperature operating life per automotive reliability standards. It is approved for use in engine control units, body electronics, ADAS sensor interfaces, and infotainment power rails where robust transient immunity is required.
What is the maximum clamping voltage of P6SMB9.1CAHM3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB9.1CAHM3_B/H is 13.4 V, measured at its peak pulse current (IPPM) of 44.8 A using the standardized 10/1000 μs waveform. This value represents the highest voltage the device allows to pass through to the protected circuit during a 600 W transient event, ensuring downstream 5 V or 3.3 V ICs remain within safe operating limits.
How does the HM3 suffix differ from E3 or M3 in P6SMB9.1CAHM3_B/H?
The "HM3" suffix in P6SMB9.1CAHM3_B/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinct from "E3" (RoHS-compliant commercial grade) and "M3" (halogen-free RoHS-compliant commercial grade). Only HM3 and HE3 variants carry automotive qualification; HM3 adds halogen-free chemistry while maintaining the same SMB footprint and electrical specs as P6SMB9.1CAHM3_B/H.
What PCB pad layout is recommended for optimal thermal performance of P6SMB9.1CAHM3_B/H?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal for P6SMB9.1CAHM3_B/H to achieve rated thermal resistance (RθJA = 100 °C/W) and sustain 600 W pulse power. Use solid internal ground/power planes connected via multiple thermal vias under each pad. Avoid narrow traces or isolated pads, as insufficient copper reduces surge current handling and risks solder joint fatigue during repetitive transients.
P6SMB9.1CAHM3_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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- 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)
P6SMB9.1CAHM3_B/H FAQ
1.How can I place an order for P6SMB9.1CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1CAHM3_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 P6SMB9.1CAHM3_B/H reliable?
The price and inventory of P6SMB9.1CAHM3_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 P6SMB9.1CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB9.1CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1CAHM3_B/H?
P6SMB9.1CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1CAHM3_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 P6SMB9.1CAHM3_B/H?
For technical support, including P6SMB9.1CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB9.1CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1CAHM3_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 P6SMB9.1CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB9.1CAHM3_B/H?
All P6SMB9.1CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1CAHM3_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 P6SMB9.1CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB9.1CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1CAHM3_B/H Tags
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