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Vishay General Semiconductor - Diodes Division P6SMB30CAHE3_B/I
- Part No.:
- P6SMB30CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHE3_B/I.pdf
- Description:
- 600W,30V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,826
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Product details
Overview
P6SMB30CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), and 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), designed to protect signal lines and power rails in automotive and industrial electronics against ESD and lightning-induced transients.
For engineers reviewing the P6SMB30CAHE3_B/I datasheet, P6SMB30CAHE3_B/I pinout, P6SMB30CAHE3_B/I application, or P6SMB30CAHE3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 600 W peak pulse power rating with 10/1000 μs waveform, low thermal resistance (RθJL = 20 °C/W), and RoHS-compliant matte tin-plated terminals suitable for J-STD-002 soldering.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical reverse/forward conduction behavior due to its bidirectional construction, enabling suppression of both positive and negative polarity surges without polarity sensitivity. It features glass-passivated junctions for stable leakage performance and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
The P6SMB30CAHE3_B/I delivers 600 W peak pulse power handling under standardized 10/1000 μs waveform conditions at 0.01 % duty cycle, with clamping voltage tightly bounded at ≤41.4 V up to 14.5 A IPPM - critical for safeguarding 3.3 V, 5 V, and 24 V logic and interface circuits against ISO 7637-2 and IEC 61000-4-5 threats.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin for 24 V nominal systems. |
| VBR (Breakdown Voltage) | 33.3 V min - Voltage at which device enters avalanche conduction at 1 mA test current; ensures reliable triggering above normal operating range. |
| VC (Clamping Voltage) | 41.4 V max at 14.5 A - Peak voltage seen by protected circuit during worst-case transient; guarantees <42 V stress on 36 V-rated components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capacity under 10/1000 μs surge; supports compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line). |
| ID (Reverse Leakage) | 1.0 μA max at 30 V - Ultra-low leakage preserves signal integrity and battery life in always-on sensor interfaces. |
| TJ max | 150 °C - Maximum junction temperature rating enables operation in under-hood automotive environments and sealed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (bidirectional) | Accepts surge current regardless of polarity; no marking required on bidirectional variants like P6SMB30CAHE3_B/I. |
| Cathode | Transient current exit point (bidirectional) | Completes low-impedance path to ground or return rail during clamping; symmetric with anode in CA-type devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| 600 W peak pulse power | Supports robust immunity to high-energy transients such as load dump (ISO 7637-2 Pulse 5a) and lightning surges (IEC 61000-4-5). |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring long-term field reliability and zero defect rates. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or gate oxide damage in downstream MOSFETs and ICs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles without baking, simplifying SMT assembly for high-volume manufacturing. |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Communication Line |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors connected to vehicle ECUs exposed to alternator load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across differential sensor outputs (e.g., 0–5 V ratiometric signals) to limit transient excursions below 42 V. Use Value: Prevents sensor signal corruption and ECU input-stage damage while maintaining <1 μA leakage to avoid offset errors in precision measurement paths. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers in factory automation PLCs subjected to ground bounce and cable discharge events. IC Role / Device Role / Timing Role: Placed between A/B bus lines and ground to suppress common-mode surges up to ±4 kV (IEC 61000-4-5), leveraging symmetrical clamping. Use Value: Ensures uninterrupted data transmission by limiting bus voltage excursion to ≤±41.4 V, preserving transceiver functional safety and avoiding false logic states. |
| Consumer USB Port ESD Protection | Smart Meter Power Supply Input |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+ and D− lines behind primary polymer-based TVS, targeting human-body-model (HBM) discharges. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp absorbing sub-100 ns ESD spikes before they reach USB PHY ICs. Use Value: Achieves >15 kV HBM and >8 kV IEC 61000-4-2 contact discharge immunity without degrading 480 Mbps signal integrity due to low capacitance (<100 pF typical). |
Use Scenario: Input-stage surge suppression on 24 V DC power inputs of utility smart meters installed in outdoor substations vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Mounted across input rails to shunt 600 W transients into chassis ground, coordinated with upstream MOV and fuse. Use Value: Extends meter lifetime by preventing repeated thermal stress on DC-DC converter input capacitors and FETs during grid-switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33CA | Same SMB package, 33 V VWM, 36.7 V VBR min, 53.3 V VC max at 11.3 A - higher clamping voltage and lower IPPM than P6SMB30CAHE3_B/I. | Less effective for 24 V systems where <42 V clamping is mandatory; better suited for 36 V nominal rails. | Select when higher VWM margin is needed but tighter clamping is not critical. |
| 1.5KE33CA | Through-hole DO-201 package, same 33 V VWM, but larger footprint, higher RθJA (75 °C/W), and no AEC-Q101 qualification. | Not suitable for automated SMT lines or automotive applications requiring qualified components. | Choose only for legacy through-hole designs or non-automotive cost-sensitive prototypes. |
Compared with SMAJ33CA and 1.5KE33CA, the P6SMB30CAHE3_B/I offers superior clamping performance (41.4 V vs. 53.3 V), AEC-Q101 qualification for automotive use, and optimized SMT manufacturability - making it the preferred choice for space-constrained, high-reliability 24 V system protection.
Availability
P6SMB30CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, consumer USB ports, and smart meter power supplies requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB30CAHE3_B/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, engineered for robustness under harsh electrical and thermal conditions with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the clamping voltage of P6SMB30CAHE3_B/I at its rated peak pulse current?
The P6SMB30CAHE3_B/I has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected circuits remain within safe voltage limits during surge events. The P6SMB30CAHE3_B/I achieves this with low incremental surge resistance and fast response time, making it suitable for protecting sensitive 24 V system nodes.
Is P6SMB30CAHE3_B/I qualified for automotive applications?
Yes, the P6SMB30CAHE3_B/I carries AEC-Q101 qualification, confirmed by the "HE3" and "_B" suffixes in its ordering code, indicating it meets stress-test requirements for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and ESD. This makes the P6SMB30CAHE3_B/I appropriate for under-hood and cabin electronics where long-term field stability is mandatory.
How does the bidirectional design of P6SMB30CAHE3_B/I affect its placement in circuit layouts?
The bidirectional nature of P6SMB30CAHE3_B/I eliminates polarity constraints - it can be placed across any two nodes (e.g., RS-485 A/B lines or USB D+/D−) without regard to orientation, simplifying layout and reducing BOM complexity. Unlike unidirectional TVS diodes, the P6SMB30CAHE3_B/I has no cathode band marking, and its symmetrical IV curve ensures identical clamping in both directions, ideal for AC-coupled or floating interfaces.
What is the maximum steady-state power dissipation for P6SMB30CAHE3_B/I?
The P6SMB30CAHE3_B/I has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C on an infinite heatsink. In practical PCB layouts with 0.2" × 0.2" copper pads per terminal, derating applies above 25 °C ambient per Figure 2 in the datasheet. This rating supports continuous operation in thermally managed industrial enclosures but is not intended for sustained DC overvoltage conditions - the device is optimized for transient, not steady-state, energy absorption.
Does P6SMB30CAHE3_B/I meet lead-free and halogen-free requirements?
Yes, the "HE3" suffix in P6SMB30CAHE3_B/I denotes RoHS-compliant construction with matte tin-plated leads and halogen-free molding compound, satisfying both EU RoHS Directive 2011/65/EU and JEDEC JS709C material restrictions. The device also complies with JESD 201 Class 2 whisker resistance and J-STD-002 solderability standards, ensuring compatibility with modern lead-free reflow processes.
P6SMB30CAHE3_B/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:
- 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)
P6SMB30CAHE3_B/I FAQ
1.How can I place an order for P6SMB30CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHE3_B/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 P6SMB30CAHE3_B/I reliable?
The price and inventory of P6SMB30CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHE3_B/I?
P6SMB30CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHE3_B/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 P6SMB30CAHE3_B/I?
For technical support, including P6SMB30CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB30CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHE3_B/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 P6SMB30CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHE3_B/I?
All P6SMB30CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHE3_B/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 P6SMB30CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB30CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAHE3_B/I Tags
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