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Vishay General Semiconductor - Diodes Division P6SMB30CAHM3_B/H
- Part No.:
- P6SMB30CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHM3_B/H.pdf
- Description:
- 600W,30V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,059
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Product details
Overview
P6SMB30CAHM3_B/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 and power lines. It features a 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB30CAHM3_B/H datasheet, P6SMB30CAHM3_B/H pinout, P6SMB30CAHM3_B/H application, or P6SMB30CAHM3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, MSL Level 1 moisture sensitivity, and compatibility with 0.2" × 0.2" copper pad thermal layout per JEDEC standards.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient overvoltage events exceeding VBR (~33.3–37.5 V), it avalanches to divert surge current away from downstream circuitry while maintaining VC ≤ 41.4 V. Its bidirectional structure enables symmetric clamping across both polarities without polarity marking.
It delivers 600 W peak pulse power handling under 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. The glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, critical for repeatable ESD and lightning surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 33.3–37.5 V at 1.0 mA - Voltage at which avalanche conduction begins; ensures reliable turn-on before damage to protected ICs. |
| VC (Clamping) | 41.4 V at IPPM = 14.5 A - Maximum voltage seen by protected circuit during full-rated surge; determines residual stress on downstream components. |
| PPPM | 600 W - Peak transient energy absorption capacity with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for automated placement and 0.2" × 0.2" copper pad thermal management. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; suffix HM3_B denotes halogen-free, RoHS-compliant AEC-Q101 version. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking required. Cathode/anode terminals are symmetrical; device functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity event) | Conducts during negative-going surges; forms symmetrical clamping path with cathode terminal. |
| Cathode | Transient current entry (positive polarity event) | Conducts during positive-going surges; completes bidirectional clamping loop with anode terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns - reduces BOM count vs. dual unidirectional TVS. |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control units, ADAS sensors, and infotainment interfaces subject to harsh thermal and vibration environments. |
| MSL Level 1 rating | Allows unlimited floor life and reflow soldering at peak 260 °C without preconditioning - simplifies manufacturing flow and eliminates bake-out steps. |
| 600 W peak pulse power | Supports high-energy transients such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/700 μs + 1.2/50 μs) when mounted on recommended 0.2" × 0.2" pads. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to clamp surges before reaching sensitive ASICs. Use Value: Limits voltage to ≤41.4 V during 14.5 A transients, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding RS-485/RS-232 communication ports and PLC analog input channels against EFT and surge events in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential signal pairs and supply rails to maintain signal integrity during EMC testing. Use Value: Symmetric clamping preserves common-mode rejection ratio (CMRR) and avoids DC bias shift in precision measurement circuits. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Suppressing line-to-line and line-to-ground surges on AC/DC adapter primary-side rectifier outputs and secondary-side 12 V/5 V rails. IC Role / Device Role / Timing Role: Secondary-side TVS placed after isolation barrier to protect DC-DC controllers and optocouplers from reflected transients. Use Value: 600 W rating handles repetitive surges from nearby motor switching without degradation, extending adapter field life. |
Use Scenario: Protecting Ethernet PHYs and DSL line drivers from lightning-induced surges entering via RJ-45 jacks in central office and CPE equipment. IC Role / Device Role / Timing Role: First-stage clamping device on twisted-pair lines before choke and common-mode filter to reduce let-through energy. Use Value: Low clamping voltage (41.4 V) prevents overvoltage stress on 3.3 V PHYs while maintaining fast response (<1 ns) to sub-microsecond transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W with 10/1000 μs waveform and not AEC-Q101 qualified. | Targeted at commercial/industrial use only; lacks automotive reliability validation and halogen-free certification. | Select SMBJ30CA for cost-sensitive non-automotive designs where AEC-Q101 is not mandated. |
| SMCJ30CA | Larger SMC (DO-214AB) package with higher 1500 W PPPM rating, same 30 V VWM and 41.4 V VC, but 2.5× larger footprint and higher RθJA (60 °C/W). | Suitable for higher-energy surge environments (e.g., outdoor telecom, solar inverters) requiring >600 W margin. | Choose SMCJ30CA when system-level surge testing exceeds IEC 61000-4-5 Level 4 or when thermal budget allows larger package. |
Compared with SMBJ30CA, P6SMB30CAHM3_B/H adds AEC-Q101 qualification and halogen-free compliance for automotive use, while SMCJ30CA trades smaller size for 2.5× higher surge power handling - making P6SMB30CAHM3_B/H optimal for space-constrained, automotive-grade signal line protection.
Availability
P6SMB30CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface boards requiring stable component supply with AEC-Q101 traceability and halogen-free compliance.
Supply support for P6SMB30CAHM3_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 high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB Series targets cost-effective, high-power transient suppression in space-constrained surface-mount applications - engineered specifically for automotive, industrial, and consumer electronics needing robust, standardized TVS protection with AEC-Q101 validation.
FAQ
What does the "HM3_B/H" suffix mean in P6SMB30CAHM3_B/H?
The "HM3" indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "B" denotes revision level for P6SMB6.8A–P6SMB220A devices; "H" specifies 7-inch tape-and-reel packaging (750 units per reel). This suffix confirms P6SMB30CAHM3_B/H meets automotive reliability, environmental, and logistics requirements - distinct from commercial-grade M3 or E3 variants.
Is P6SMB30CAHM3_B/H suitable for protecting 3.3 V logic interfaces?
No - P6SMB30CAHM3_B/H has a 30 V stand-off voltage and 41.4 V clamping voltage, far exceeding safe limits for 3.3 V ICs. It is intended for 24 V or higher systems like automotive 12 V/24 V power rails, industrial 24 V I/O, or telecom -48 V lines. For 3.3 V logic, lower-voltage TVS devices such as SMAJ3.3A or SOD323-packaged options are appropriate. P6SMB30CAHM3_B/H must be applied only where protected circuitry tolerates ≥41.4 V transient exposure.
Does P6SMB30CAHM3_B/H require a heatsink for 600 W surge handling?
No external heatsink is required - the 600 W rating is defined for a single 10/1000 μs pulse with device mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per JEDEC standards. Thermal dissipation relies on PCB copper area, not added heatsinks. Repeated surges demand derating per Fig. 2 in the datasheet, and continuous power dissipation is limited to 5.0 W at TA = 50 °C. P6SMB30CAHM3_B/H performance is fully validated under this standard layout.
How does the bidirectional design of P6SMB30CAHM3_B/H affect PCB layout?
The bidirectional design eliminates polarity marking and orientation constraints - P6SMB30CAHM3_B/H can be placed in either direction on the PCB without functional impact. This simplifies layout, reduces assembly errors, and enables symmetric placement on differential lines (e.g., RS-485, CAN). No cathode band identification is needed, unlike unidirectional TVS diodes. Layout must still follow 0.2" × 0.2" pad recommendations to ensure thermal and surge performance of P6SMB30CAHM3_B/H.
What is the maximum operating temperature for P6SMB30CAHM3_B/H?
The maximum junction temperature (TJ max.) for P6SMB30CAHM3_B/H is +150 °C, with operating and storage range from -65 °C to +150 °C. This rating is maintained under AEC-Q101 qualification and supports operation in under-hood automotive environments and industrial enclosures. Derating of peak pulse power begins above TA = 25 °C per Fig. 2; at 125 °C ambient, P6SMB30CAHM3_B/H retains ~50% of its 600 W rating. Thermal design must ensure junction temperature stays within this limit during surge events.
P6SMB30CAHM3_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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30CAHM3_B/H FAQ
1.How can I place an order for P6SMB30CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHM3_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 P6SMB30CAHM3_B/H reliable?
The price and inventory of P6SMB30CAHM3_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 P6SMB30CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHM3_B/H?
P6SMB30CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHM3_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 P6SMB30CAHM3_B/H?
For technical support, including P6SMB30CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB30CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHM3_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 P6SMB30CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHM3_B/H?
All P6SMB30CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHM3_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 P6SMB30CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB30CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAHM3_B/H Tags
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