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Vishay General Semiconductor - Diodes Division P6SMB27CAHE3_B/H
- Part No.:
- P6SMB27CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CAHE3_B/H.pdf
- Description:
- 600W,27V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,273
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Product details
Overview
P6SMB27CAHE3_B/H 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 23.1 V standoff voltage (VWM), 25.7–28.4 V breakdown voltage (VBR) at 1 mA, 37.5 V maximum clamping voltage (VC) at 16.0 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB27CAHE3_B/H datasheet, P6SMB27CAHE3_B/H pinout, P6SMB27CAHE3_B/H application, or P6SMB27CAHE3_B/H equivalent, this device is selected for bidirectional overvoltage protection where AEC-Q101 qualification, low-profile SMB (DO-214AA) packaging, and stable clamping under repetitive surge conditions are required.
Technical Context
The P6SMB27CAHE3_B/H operates as a bidirectional avalanche diode, symmetrically clamping transient voltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while its thermal resistance (RθJA = 100 °C/W) supports operation up to +150 °C junction temperature under defined PCB pad layout (0.2" × 0.2" copper).
It delivers 600 W peak pulse power per the 10/1000 μs standard waveform with 0.01% duty cycle, and exhibits a temperature coefficient of VBR of +0.096 %/°C - enabling predictable voltage shift across operating temperature ranges in automotive-grade designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 23.1 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown Voltage) | 25.7–28.4 V at IT = 1 mA - Confirmed avalanche onset range; ensures reliable triggering during fast transients. |
| VC (Clamping Voltage) | 37.5 V at IPPM = 16.0 A - Peak voltage seen by downstream components during 10/1000 μs surge; determines protection margin. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capacity under standardized surge waveform; validates robustness against lightning or inductive spikes. |
| IPPM (Peak Pulse Current) | 16.0 A - Maximum non-repetitive surge current it can divert without failure; sets minimum upstream fuse or trace sizing requirements. |
| Junction Temperature Range | –65 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments with wide thermal excursions. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports PPAP documentation. |
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 terminals, MSL Level 1, compatible with lead-free reflow (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction; either end connects to line being protected - enables single-component placement on AC or differential signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates immunity to IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| AEC-Q101 qualification (HE3 suffix) | Confirms reliability for automotive powertrain, body control, and ADAS modules requiring zero-defect field performance. |
| Low incremental surge resistance | Enables tighter clamping (VC – VBR = 9.1 V) versus competing 27 V TVS devices, reducing stress on downstream ICs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - simplifies SMT line integration and reduces handling cost. |
| Glass passivated junction | Ensures long-term parameter stability and low leakage (<1 μA at VWM) across temperature and humidity cycling. |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt transients before reaching signal conditioning ICs. Use Value: Maintains signal integrity below 37.5 V clamp during 16 A surges, preventing latch-up or damage to 3.3 V/5 V microcontrollers and ADC front-ends. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to relay coil kickback and EFT noise. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Limits transient overshoot to ≤37.5 V within <1 ns response time, preserving measurement accuracy and avoiding ADC saturation or op-amp rail-to-rail clipping. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding Ethernet PHY interfaces, RS-485 transceivers, and DSL line drivers from induced surges in building cabling and PoE-powered equipment. IC Role / Device Role / Timing Role: Primary-level TVS on differential pairs or power rails, positioned ahead of secondary protection (e.g., GDT + MOV cascade). Use Value: Absorbs up to 600 W of coupled lightning energy while maintaining <1 pF junction capacitance - minimizing signal distortion on high-speed lines. |
Use Scenario: Suppressing inductive spikes generated by brushed DC motor commutation in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Snubber-style clamp across motor terminals or H-bridge power FETs to prevent voltage runaway during turn-off. Use Value: Clamps flyback spikes to 37.5 V within nanoseconds, eliminating need for larger bulk capacitors and reducing EMI filter size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28CA | 28 V VWM, 31.1–34.4 V VBR, 45.4 V VC at 13.2 A, 400 W PPPM, SMA package (larger RθJA = 140 °C/W) | Limited to commercial-grade use; not AEC-Q101 qualified; lower surge rating requires derating in automotive environments. | Select when cost sensitivity outweighs AEC-Q101 compliance and 600 W surge headroom is unnecessary. |
| 1.5KE27CA | 27 V VWM, 28.5–31.5 V VBR, 41.4 V VC at 14.5 A, 1500 W PPPM, DO-201 package (through-hole, higher profile) | Through-hole mounting only; incompatible with automated SMT lines; unsuitable for space-constrained PCBs. | Choose only for legacy through-hole designs or where >1 kW surge handling justifies board real estate and assembly cost. |
Compared with SMAJ28CA and 1.5KE27CA, the P6SMB27CAHE3_B/H provides AEC-Q101 qualification, optimized SMT compatibility in SMB footprint, and balanced 600 W/37.5 V clamping - making it the preferred choice for new automotive and industrial surface-mount designs requiring validated reliability and compact layout.
Availability
P6SMB27CAHE3_B/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC analog input protection, and telecom line interface hardening requiring stable component supply, AEC-Q101 traceability, and consistent SMB (DO-214AA) form factor.
Supply support for P6SMB27CAHE3_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, TVS, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB series is engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure - delivering standardized 600 W surge capability, AEC-Q101 variants, and tight parametric control across voltage grades.
FAQ
What does the "CA" suffix indicate in P6SMB27CAHE3_B/H?
The "CA" suffix in P6SMB27CAHE3_B/H denotes a bidirectional configuration - meaning the device clamps transient voltages equally in both polarities, with no anode/cathode distinction. This makes P6SMB27CAHE3_B/H ideal for protecting AC-coupled signals, differential buses like RS-485 or CAN, and ungrounded power rails where polarity reversal may occur during fault conditions.
Is P6SMB27CAHE3_B/H suitable for automotive applications?
Yes, P6SMB27CAHE3_B/H is AEC-Q101 qualified (indicated by the "HE3" and "_B" suffixes), having passed stress tests including high-temperature operating life, temperature cycling, and ESD. It is approved for use in automotive subsystems such as body control modules, sensor interfaces, and infotainment power supplies where robust transient immunity and zero-defect reliability are mandated.
What is the maximum clamping voltage of P6SMB27CAHE3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB27CAHE3_B/H is 37.5 V at a peak pulse current (IPPM) of 16.0 A, measured with a 10/1000 μs waveform. This value defines the highest voltage downstream components will experience during a standardized surge event - critical for ensuring compatibility with 3.3 V, 5 V, or 24 V system rails.
How does the SMB (DO-214AA) package of P6SMB27CAHE3_B/H compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB27CAHE3_B/H offers a 4.57 mm × 3.94 mm footprint - smaller than SMC but larger than SMA - balancing surge capability (600 W) with board space efficiency. Unlike SMA, SMB supports higher power dissipation (5.0 W) and lower thermal resistance (RθJL = 20 °C/W), making P6SMB27CAHE3_B/H more thermally robust in high-duty-cycle surge scenarios.
What is the standoff voltage (VWM) of P6SMB27CAHE3_B/H, and why is it important?
The standoff voltage (VWM) of P6SMB27CAHE3_B/H is 23.1 V - the maximum continuous reverse voltage the device blocks without entering avalanche conduction. This parameter ensures normal circuit operation remains undisturbed while guaranteeing rapid clamping when transients exceed this threshold; selecting VWM ≥110% of operating voltage prevents false triggering in P6SMB27CAHE3_B/H deployments.
P6SMB27CAHE3_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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6SMB27CAHE3_B/H FAQ
1.How can I place an order for P6SMB27CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CAHE3_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 P6SMB27CAHE3_B/H reliable?
The price and inventory of P6SMB27CAHE3_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 P6SMB27CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB27CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CAHE3_B/H?
P6SMB27CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CAHE3_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 P6SMB27CAHE3_B/H?
For technical support, including P6SMB27CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB27CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB27CAHE3_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 P6SMB27CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB27CAHE3_B/H?
All P6SMB27CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CAHE3_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 P6SMB27CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB27CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27CAHE3_B/H Tags
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