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Vishay General Semiconductor - Diodes Division P6SMB56CAHE3/52
- Part No.:
- P6SMB56CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB56CAHE3/52.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,509
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Product details
Overview
P6SMB56CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 56 V breakdown voltage (VBR min/max = 53.2–58.8 V at 1 mA), 47.8 V stand-off voltage (VWM), and clamps to ≤77.0 V at 7.8 A peak pulse current (IPPM) under 10/1000 µs waveform. Used in automotive sensor interfaces and industrial I/O protection where AEC-Q101 qualification and 600 W surge capability are required.
For engineers reviewing the P6SMB56CAHE3/52 datasheet, P6SMB56CAHE3/52 pinout, P6SMB56CAHE3/52 application, or P6SMB56CAHE3/52 equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, bidirectional clamping behavior, AEC-Q101 qualification status, and direct alternatives with documented differences in breakdown tolerance and leakage performance.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VWM, and IPPM ratings in either direction. Its glass-passivated junction ensures stable clamping under repetitive surges, and low incremental surge resistance enables rapid energy absorption without thermal runaway.
The device complies with J-STD-020 MSL Level 1 (peak reflow 260 °C), uses matte tin-plated leads per J-STD-002, and achieves 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads - critical for sustained transient suppression in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1 mA - defines reliable conduction onset under bidirectional surge conditions |
| VWM | 47.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| VC @ IPPM | ≤77.0 V at 7.8 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient power dissipation capability at 0.01% duty cycle |
| IPPM | 7.8 A - maximum non-repetitive surge current the device safely clamps |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads; dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (bidirectional) | Terminal that accepts forward current in one polarity and reverse surge current in the other; no marking on bidirectional devices |
| Cathode | Current exit terminal (bidirectional) | Terminal that sources current in one polarity and sinks surge current in the other; no band or marking on P6SMB56CAHE3/52 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates polarity concerns in AC-coupled or floating signal lines |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without failure when properly mounted |
| Low clamping ratio (VC/VBR) | 1.45 (77.0 V / 53.2 V) - minimizes overvoltage stress on downstream ICs during transient events |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak - no moisture sensitivity handling required |
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 ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching signal conditioning circuitry. Use Value: Prevents latch-up or permanent damage to 5 V or 12 V sensor front-ends while maintaining signal integrity during 10/1000 µs surges up to ±77 V. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Primary transient suppressor on each isolated input channel, mounted adjacent to terminal block. Use Value: Enables robust operation in factory environments with frequent relay switching and motor drive noise, sustaining 600 W surges without derating at +85 °C ambient. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers from lightning-induced surges on outdoor cabling in telecom access equipment. IC Role / Device Role / Timing Role: First-stage protector on differential data lines, coordinated with GDT or MOV secondary stages. Use Value: Limits common-mode voltage excursion to ≤77 V within nanoseconds, preserving signal eye diagram integrity during 10/1000 µs transients. |
Use Scenario: Adding secondary-level surge immunity to USB-C or barrel-jack DC inputs in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance (<200 pF) bidirectional clamp between VIN and GND, downstream of primary fuse. Use Value: Absorbs 8 kV contact ESD (IEC 61000-4-2) and 1 kV line surge (IEC 61000-4-5) without affecting 5–20 V DC regulation or causing system reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58CA | Higher VBR (55–61 V), same VWM (49.5 V), lower IPPM (6.5 A), same PPPM (600 W) | Marginally higher clamping voltage (80.5 V) reduces headroom for 56 V rail systems | Select when tighter VBR tolerance is not required and legacy SMA footprint compatibility is prioritized |
| SMCJ58CA | Same VBR range (55–61 V), higher PPPM (1500 W), larger SMC (DO-214AB) package | Requires PCB layout change; suited for higher-energy surge environments (e.g., industrial mains coupling) | Choose only when 600 W is insufficient and board space allows SMC footprint; not drop-in compatible |
Compared with SMAJ58CA and SMCJ58CA, P6SMB56CAHE3/52 offers tighter VBR tolerance (±5.3%), AEC-Q101 qualification out-of-box, and SMB footprint optimized for high-density automotive PCBs - making it the preferred choice for space-constrained, automotive-grade designs requiring precise 56 V clamping.
Availability
P6SMB56CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter ESD hardening requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB56CAHE3/52 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 reliability and automotive qualification.
The P6SMB Series targets cost-sensitive, high-volume transient protection applications where AEC-Q101 compliance, SMB footprint efficiency, and 600 W surge capability are essential - especially in automotive body electronics and industrial control.
FAQ
What does the "CA" suffix indicate in P6SMB56CAHE3/52?
The "CA" suffix in P6SMB56CAHE3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities - unlike unidirectional variants (e.g., P6SMB56A). This eliminates polarity marking requirements and simplifies placement on AC-coupled or floating signal lines, and is confirmed in Vishay's P6SMB datasheet revision 09-Jan-2024, section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is P6SMB56CAHE3/52 qualified to AEC-Q101, and what does that cover?
Yes, P6SMB56CAHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix and confirmed in the Vishay P6SMB datasheet (Document Number: 88370, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), validating its suitability for automotive under-hood and cabin applications where reliability is mission-critical.
What is the maximum clamping voltage of P6SMB56CAHE3/52, and under what test condition?
The maximum clamping voltage (VC) of P6SMB56CAHE3/52 is 77.0 V, measured at a peak pulse current (IPPM) of 7.8 A using the standardized 10/1000 µs double-exponential waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table of the Vishay P6SMB datasheet and represents the worst-case voltage imposed on protected circuitry during a surge event.
Can P6SMB56CAHE3/52 be used in place of a unidirectional TVS like P6SMB56A?
No - P6SMB56CAHE3/52 is bidirectional and lacks cathode band marking, while P6SMB56A is unidirectional with defined anode/cathode polarity. Substituting them requires verifying circuit topology: bidirectional use is mandatory for AC signals or floating grounds, whereas unidirectional parts are required for DC-biased rails where reverse conduction must be blocked. The P6SMB56CAHE3/52 datasheet explicitly states "no marking on bidirectional types", confirming functional incompatibility.
What is the thermal resistance and recommended pad layout for P6SMB56CAHE3/52?
P6SMB56CAHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the "THERMAL CHARACTERISTICS" section of the Vishay datasheet. Deviating from this pad size increases thermal impedance and risks exceeding the +150 °C maximum junction temperature during repetitive surges.
P6SMB56CAHE3/52 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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)
P6SMB56CAHE3/52 FAQ
1.How can I place an order for P6SMB56CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB56CAHE3/52 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 P6SMB56CAHE3/52 reliable?
The price and inventory of P6SMB56CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB56CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB56CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB56CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB56CAHE3/52?
P6SMB56CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB56CAHE3/52 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 P6SMB56CAHE3/52?
For technical support, including P6SMB56CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB56CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB56CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB56CAHE3/52 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 P6SMB56CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB56CAHE3/52?
All P6SMB56CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB56CAHE3/52, 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 P6SMB56CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB56CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB56CAHE3/52 Tags
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