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Vishay General Semiconductor - Diodes Division P6SMB30CAHE3/5B
- Part No.:
- P6SMB30CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHE3/5B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,792
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Product details
Overview
P6SMB30CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the 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 sensor interfaces.
For engineers reviewing the P6SMB30CAHE3/5B datasheet, P6SMB30CAHE3/5B pinout, P6SMB30CAHE3/5B application, or P6SMB30CAHE3/5B equivalent, key selection criteria include bidirectional surge clamping performance under 10/1000 μs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for suppressing ESD and inductive switching transients before IC damage occurs.
The device delivers 600 W peak pulse power (10/1000 μs waveform) with low incremental surge resistance, resulting in tight clamping ratio (VC/VBR ≈ 1.24) and minimal let-through energy. It is rated for continuous operation from –65 °C to +150 °C junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 33.3 V min - Voltage at which device enters avalanche breakdown at 1.0 mA test current; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 41.4 V max at IPPM = 14.5 A - Peak voltage seen by protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy-handling capability under standardized 10/1000 μs waveform; enables robust protection against lightning and load dump events. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating supports operation in under-hood automotive and industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs derating requirements when mounted on standard PCB copper pads. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional operation | Enables identical clamping behavior for positive and negative transients; eliminates need for orientation-aware layout. |
| Cathode | Current exit terminal in forward bias; symmetrical with anode in bidirectional operation | Matches anode electrical behavior; both terminals function identically as transient current sinks during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces, supporting long-term reliability under thermal cycling and vibration. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients from inductive load switching and ISO 7637-2 pulse 1/2a/5a without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage exposure to protected ICs such as CAN transceivers or ADC front-ends, reducing risk of latch-up or gate oxide rupture. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT reflow profiles without preconditioning, enabling drop-in use in high-volume manufacturing. |
| Glass passivated junction | Ensures stable leakage current and breakdown voltage over lifetime, critical for mission-critical protection in industrial PLCs and telecom infrastructure. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., temperature, pressure) in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role: Bidirectional transient clamp placed across signal line and ground, shunting surge current away from precision amplifier inputs. Use Value: Maintains signal fidelity under ISO 16750-2 pulses while meeting AEC-Q101 requirements for 15-year vehicle service life. |
Use Scenario: Safeguarding 4–20 mA current loop inputs in programmable logic controllers subjected to field wiring surges and ESD. IC Role / Device Role: Low-leakage TVS connected between loop terminals and chassis ground to suppress common-mode transients without affecting loop accuracy. Use Value: Enables <1.0 μA leakage at 30 V, preserving 0.1% measurement accuracy while clamping 1 kV EFT bursts to <42 V. |
| Telecom Line Interface | Consumer USB Port Protection |
|
Use Scenario: Shielding RS-485 transceiver I/O pins in base station remote radio units from lightning-induced surges on outdoor cabling. IC Role / Device Role: Bidirectional clamp across differential pair, referenced to local ground, absorbing asymmetric and common-mode transients. Use Value: Delivers 600 W pulse handling and 41.4 V clamping to keep transceiver VCC–IO voltage within safe SOA limits during IEC 61000-4-5 4 kV tests. |
Use Scenario: Adding secondary-level surge protection on USB 2.0 D+/D– lines in smart home hubs, supplementing internal ESD diodes. IC Role / Device Role: Low-capacitance (<100 pF) bidirectional TVS placed adjacent to connector to intercept fast-rising ESD events before reaching PHY. Use Value: Clamps ±15 kV contact discharge (IEC 61000-4-2) to <42 V while adding <0.3 pF parasitic capacitance per line, preserving signal integrity up to 480 Mbps. |
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 at 11.3 A; lower PPPM (400 W); not AEC-Q101 qualified | Targeted at commercial-grade consumer electronics where automotive qualification is unnecessary | Select SMAJ33CA only for cost-sensitive non-automotive designs with lower surge energy requirements. |
| SMCJ33CA | Higher-power SMC (DO-214AB) package, same 33 V VWM, 36.7 V VBR min, but 53.3 V VC at 33.5 A; 1500 W PPPM; AEC-Q101 available (HE3 suffix) | Used where higher surge immunity is required-e.g., 24 V power rail protection in heavy equipment | Choose SMCJ33CAHE3 when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space allows larger footprint. |
Compared with SMAJ33CA, P6SMB30CAHE3/5B offers AEC-Q101 qualification and tighter clamping (41.4 V vs. 53.3 V), making it superior for automotive signal-line protection; versus SMCJ33CAHE3, it trades peak power for smaller SMB footprint and lower thermal mass-ideal for dense sensor node layouts.
Availability
P6SMB30CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial I/O terminals, and telecom line interface circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB30CAHE3/5B 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The P6SMB Series is engineered for robust transient suppression in harsh environments, with emphasis on AEC-Q101 compliance, stable parametric performance over temperature, and seamless integration into automated SMT lines.
FAQ
What does the "CA" suffix indicate in P6SMB30CAHE3/5B?
The "CA" suffix in P6SMB30CAHE3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB30A), P6SMB30CAHE3/5B has no polarity marking and functions identically across either terminal orientation-critical for protecting AC-coupled or differential signal paths without layout constraints.
Is P6SMB30CAHE3/5B suitable for automotive applications?
Yes, P6SMB30CAHE3/5B is AEC-Q101 qualified (indicated by the "HE3" suffix), validated for use in automotive subsystems including body control modules, ADAS sensors, and infotainment interfaces. It operates reliably from –65 °C to +150 °C, withstands mechanical shock and thermal cycling, and meets stringent automotive surge immunity standards such as ISO 7637-2 and ISO 16750-2.
What is the clamping voltage of P6SMB30CAHE3/5B at its rated peak pulse current?
The maximum clamping voltage (VC) of P6SMB30CAHE3/5B is 41.4 V at a peak pulse current (IPPM) of 14.5 A, measured using the standardized 10/1000 μs double-exponential waveform. This value defines the highest voltage imposed on the protected circuit during worst-case surge events and is confirmed in the Vishay datasheet Document Number 88370, page 2.
How does the SMB (DO-214AA) package of P6SMB30CAHE3/5B compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB30CAHE3/5B measures 4.57 mm × 3.94 mm × 2.20 mm-smaller than SMC (DO-214AB) but larger than SMA (DO-214AC). It offers a balance of surge capability (600 W), board space efficiency, and thermal performance (RθJA = 100 °C/W), making P6SMB30CAHE3/5B ideal for space-constrained automotive and industrial PCBs where SMC-level power isn't required.
What is the reverse leakage current specification for P6SMB30CAHE3/5B at its stand-off voltage?
P6SMB30CAHE3/5B specifies a maximum reverse leakage current (ID) of 1.0 μA at its 30 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage preserves signal integrity in high-impedance sensor interfaces and ensures minimal power loss in battery-powered systems-verified in the Electrical Characteristics table on page 2 of the Vishay P6SMB datasheet.
P6SMB30CAHE3/5B 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB30CAHE3/5B FAQ
1.How can I place an order for P6SMB30CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHE3/5B 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 P6SMB30CAHE3/5B reliable?
The price and inventory of P6SMB30CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHE3/5B?
P6SMB30CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHE3/5B 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 P6SMB30CAHE3/5B?
For technical support, including P6SMB30CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB30CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHE3/5B 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 P6SMB30CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHE3/5B?
All P6SMB30CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHE3/5B, 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 P6SMB30CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB30CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAHE3/5B Tags
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