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Vishay General Semiconductor - Diodes Division P6SMB27CAHM3_A/H
- Part No.:
- P6SMB27CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CAHM3_A/H.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,063
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Product details
Overview
P6SMB27CAHM3_A/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 23.1 V stand-off 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 rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB27CAHM3_A/H datasheet, P6SMB27CAHM3_A/H pinout, P6SMB27CAHM3_A/H application, or P6SMB27CAHM3_A/H equivalent, this part delivers AEC-Q101 qualified transient suppression in halogen-free, RoHS-compliant packaging with MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility - critical for automotive-grade ESD and load-dump protection design validation.
Technical Context
The P6SMB27CAHM3_A/H operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while its low incremental surge resistance enables rapid energy diversion during fast-rising ESD or inductive switching events.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, supporting reliable operation up to TJ = +150 °C. The device is rated for repetitive 10/1000 μs pulses at 0.01% duty cycle and meets JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 23.1 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 25.7–28.4 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC (Clamping) | 37.5 V at 16.0 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; determines downstream component stress. |
| PPPM | 600 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 surge events. |
| ID (Leakage) | <1.0 μA at VWM - Minimal standby current; preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive and high-ambient industrial deployment. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage exceeds ±VBR, enabling single-device protection of AC or differential lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces per stress test requirements. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for Tier-1 automotive supply chains and industrial CE-marked equipment. |
| MSL Level 1, 260 °C peak | Enables standard lead-free reflow assembly without pre-baking; eliminates moisture-related popcorning risk. |
| 600 W 10/1000 μs rating | Provides immunity to ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges in 12 V/24 V vehicle systems. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V/5 V logic and analog front-ends. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in passenger vehicles. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching PHY layer. Use Value: Maintains signal fidelity under ISO 16750-2 load dump (up to 35 V, 100 ms) and prevents latch-up in 5 V sensor interface ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Parallel-connected TVS across 24 V DC input terminals to clamp inductive kickback spikes up to 1 kV. Use Value: Extends mean time between failures (MTBF) by limiting transient-induced gate oxide stress in optocoupler input stages. |
| Telecom Power Rail Protection | Consumer Appliance Motor Control |
Use Scenario: Securing 48 V PoE-powered Ethernet switch ports against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC output rails upstream of DC/DC converters and PHY ICs. Use Value: Limits clamped voltage to ≤37.5 V, ensuring safe operation of 36 V-rated PoE controller ICs (e.g., MAX5980). |
Use Scenario: Shielding microcontroller GPIOs and H-bridge drivers in washing machine motor control boards from brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on low-voltage signal traces adjacent to triac and MOSFET gate drive paths. Use Value: Prevents false triggering of interrupt pins and resets caused by sub-100 ns edge transients exceeding 30 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Lower PPPM (400 W), higher VC (38.9 V at 10.3 A), SMA package (smaller thermal mass) | Less robust for repetitive 12 V automotive load dump; suited for space-constrained consumer PCBs | Select when board area is constrained and peak surge energy is ≤400 W; verify thermal derating at >70 °C ambient. |
| 1.5KE27CA | Higher PPPM (1500 W), axial-leaded DO-201 package, slower response due to higher parasitic inductance | Not suitable for high-frequency ESD or SMT-only assembly; requires through-hole layout and manual soldering | Choose only for legacy through-hole designs where 1.5 kW surge margin is mandatory and reflow compatibility is not required. |
Compared with SMAJ24CA and 1.5KE27CA, the P6SMB27CAHM3_A/H uniquely balances 600 W surge capacity, AEC-Q101 qualification, SMB surface-mount compatibility, and 37.5 V clamping - making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and standardized assembly.
Availability
P6SMB27CAHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom PoE power supplies, and appliance motor control boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB27CAHM3_A/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, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The P6SMB Series targets cost-sensitive yet mission-critical transient suppression needs in automotive, industrial, and telecom infrastructure - delivering standardized TVS performance in compact SMB packages with AEC-Q101 and halogen-free options.
FAQ
What does the "CA" suffix indicate in P6SMB27CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration: the P6SMB27CAHM3_A/H conducts and clamps symmetrically for both positive and negative voltage transients, unlike unidirectional "A" variants. This makes it ideal for protecting AC-coupled lines, differential buses like CAN, or any circuit where polarity reversal may occur during surge events. The device has no cathode marking, confirming its bidirectional nature.
Is P6SMB27CAHM3_A/H suitable for automotive applications?
Yes - the P6SMB27CAHM3_A/H carries AEC-Q101 qualification (indicated by the "HM3" suffix), meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life required for automotive under-hood and cabin electronics. Its 150 °C max junction temperature and MSL Level 1 rating further validate suitability for engine control units and ADAS sensor modules.
How does the clamping voltage of P6SMB27CAHM3_A/H compare to its breakdown voltage?
The P6SMB27CAHM3_A/H has a breakdown voltage (VBR) range of 25.7–28.4 V at 1 mA and a maximum clamping voltage (VC) of 37.5 V at 16.0 A. This yields a clamping ratio of ~1.35, indicating tight voltage control during surge events. That ratio ensures protected ICs experience minimal overvoltage - critical for safeguarding 3.3 V or 5 V logic interfaces without additional series impedance.
What is the significance of the "HM3" suffix in P6SMB27CAHM3_A/H?
The "HM3" suffix in P6SMB27CAHM3_A/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or "M3" versions and confirms compliance with automotive environmental and reliability standards. The "H" denotes 7″ tape-and-reel packaging (750 units per reel), while "A/H" indicates revision level "A" and packaging code "H".
Can P6SMB27CAHM3_A/H replace P6SMB27A in a design?
No - P6SMB27CAHM3_A/H is bidirectional, whereas P6SMB27A is unidirectional and features a cathode band. Substituting them requires verifying circuit polarity and transient directionality: using the bidirectional P6SMB27CAHM3_A/H on a unidirectional line introduces unnecessary leakage paths and may compromise forward conduction behavior. Always match device polarity to system architecture.
P6SMB27CAHM3_A/H 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:
- Obsolete
- 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)
P6SMB27CAHM3_A/H FAQ
1.How can I place an order for P6SMB27CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CAHM3_A/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 P6SMB27CAHM3_A/H reliable?
The price and inventory of P6SMB27CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB27CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CAHM3_A/H?
P6SMB27CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CAHM3_A/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 P6SMB27CAHM3_A/H?
For technical support, including P6SMB27CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB27CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB27CAHM3_A/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 P6SMB27CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB27CAHM3_A/H?
All P6SMB27CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CAHM3_A/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 P6SMB27CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB27CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27CAHM3_A/H Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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