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Vishay General Semiconductor - Diodes Division P6SMB27CA-M3/52
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- Part No.:
- P6SMB27CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27CA-M3/52.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,132
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Product details
Overview
P6SMB27CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 27 V standoff voltage (VWM), 37.5 V clamping voltage (VC) at 16.0 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects sensitive signal lines and power rails in automotive, industrial, and telecom systems against ESD, lightning surges, and inductive switching transients.
For engineers reviewing the P6SMB27CA-M3/52 datasheet, P6SMB27CA-M3/52 pinout, P6SMB27CA-M3/52 application, or P6SMB27CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, 23.1 V minimum breakdown voltage (VBR), halogen-free RoHS-compliant construction (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant - critical for automotive-grade transient protection design.
Technical Context
The P6SMB27CA-M3/52 operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at 23.1 V), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
Designed for automated SMT placement, it delivers fast response time (<1.0 ns) and low incremental surge resistance, enabling effective suppression of sub-microsecond transients. Thermal resistance (RθJA = 100 °C/W) and 150 °C max junction temperature support reliable operation under repetitive surge conditions when mounted on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 23.1 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 25.7–28.4 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable clamping threshold across production lot. |
| VC (Clamping Voltage) | 37.5 V at 16.0 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability per single 10/1000 μs transient; enables robust protection in harsh environments. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Minimal standby current draw; preserves battery life and avoids false triggering in low-power sensor interfaces. |
| Package | SMB (DO-214AA) - Industry-standard 2-pin surface-mount outline; compatible with standard pick-and-place and reflow processes. |
| Construction | Halogen-free, RoHS-compliant (M3 suffix) - Meets environmental compliance requirements for commercial and automotive applications. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band absent per bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally above VBR in either polarity - eliminates orientation concerns during layout and assembly. |
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 constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when properly laid out - reduces need for cascaded protection stages. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to downstream ICs; critical for safeguarding 3.3 V or 5 V logic interfaces with tight absolute maximum ratings. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free manufacturing without pre-baking or special handling - lowers production cost and risk of moisture-induced failure. |
| AEC-Q101 qualification path | HM3 variant available; validates reliability for automotive infotainment, body control, and ADAS sensor interfaces requiring extended temperature and lifetime validation. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point, shunting surge energy to ground before reaching MCU or transceiver. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers (e.g., SN65HVD230) during 12 V system surges up to ±300 V, per ISO 7637-2 Pulse 5a. |
Use Scenario: Safeguarding long-haul RS-485 communication lines in factory automation PLCs exposed to motor drive noise and ground potential differences. IC Role / Device Role / Timing Role: Differential-line TVS pair (one per line) referenced to local ground, absorbing common-mode surges induced by nearby 480 VAC motor switching. Use Value: Maintains data integrity under IEC 61000-4-4 EFT bursts (4 kV) and IEC 61000-4-5 surges (2 kV), eliminating communication dropouts in noisy plant environments. |
| Consumer USB Port Protection | Telecom DSL Line Protection |
|
Use Scenario: ESD and hot-plug transient suppression on USB 2.0 D+ and D− lines in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector, with minimal trace length to preserve 480 Mbps signal integrity. Use Value: Passes IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without degrading eye diagram or increasing bit error rate - validated with TUSB2036 hub controller. |
Use Scenario: Primary surge protection on ADSL/VDSL line cards handling POTS/DSL coexistence and lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Series-connected bidirectional TVS on tip/ring lines, coordinated with gas discharge tube (GDT) front-end for staged energy handling. Use Value: Clamps induced surges to <40 V within 1 ns, preventing damage to SLIC and codec ICs (e.g., Si3226) while maintaining voice-band signal fidelity up to 4 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28CA | 28 V VWM, 45.4 V VC at 13.2 A; SMA package (smaller footprint, higher RθJA = 150 °C/W) | Limited to lower-energy transients due to 400 W PPPM; less suitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2/4-4 only. |
| SMCJ28CA | 28 V VWM, 43.5 V VC at 13.8 A; SMC package (larger, 1500 W PPPM, RθJA = 60 °C/W) | Over-specified for 600 W needs; requires larger PCB area and higher assembly cost | Choose only when future-proofing for higher surge immunity or thermal-limited layouts with poor copper pour. |
Compared with SMAJ28CA and SMCJ28CA, the P6SMB27CA-M3/52 delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, and thermal performance - making it the preferred choice for mid-tier industrial and automotive modules where space, cost, and reliability must be simultaneously optimized.
Availability
P6SMB27CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and consumer USB port protection requiring stable component supply, halogen-free compliance, and repeatable surge performance across production lots.
Supply support for P6SMB27CA-M3/52 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, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB series targets cost-sensitive yet robust transient protection across automotive, industrial, and telecom end equipment - delivering standardized TVS performance in compact SMB packages with scalable voltage and power options.
FAQ
What is the clamping voltage of P6SMB27CA-M3/52 at its rated peak pulse current?
The P6SMB27CA-M3/52 has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings. The P6SMB27CA-M3/52 maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is P6SMB27CA-M3/52 suitable for automotive applications?
Yes, the P6SMB27CA-M3/52 is halogen-free and RoHS-compliant, and its base P6SMB27CA family supports AEC-Q101 qualification via the HM3 suffix variant (e.g., P6SMB27CAHM3_B/H). While the M3 suffix itself denotes commercial-grade halogen-free construction, design-in for automotive use requires specifying the HM3 variant with appropriate revision code. The P6SMB27CA-M3/52 shares identical electrical characteristics and SMB package with qualified versions, enabling seamless migration.
How does the bidirectional nature of P6SMB27CA-M3/52 affect PCB layout?
The P6SMB27CA-M3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout for differential or AC-coupled signals (e.g., RS-485, CAN, audio lines), removes risk of reverse installation, and allows symmetric routing to ground. Layout best practices still apply: minimize trace inductance with short, direct paths to ground plane and use 5.0 mm × 5.0 mm copper pads per terminal to maintain specified thermal and surge performance for the P6SMB27CA-M3/52.
What is the maximum reverse leakage current for P6SMB27CA-M3/52 at its stand-off voltage?
The P6SMB27CA-M3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 23.1 V, measured at TA = 25 °C. This ultra-low leakage ensures negligible power loss in battery-powered or high-impedance sensing circuits and prevents false triggering in precision analog front-ends. Leakage remains below 5.0 μA up to 80 % of VWM across the full -65 °C to +150 °C operating range, as verified in Vishay's characterization data for the P6SMB27CA-M3/52.
Can P6SMB27CA-M3/52 replace unidirectional TVS diodes in existing designs?
No - the P6SMB27CA-M3/52 is strictly bidirectional and lacks a defined cathode/anode polarity, so it cannot substitute for unidirectional TVS diodes (e.g., P6SMB27A-M3/52) in DC-biased applications like power rail clamping. Attempting replacement may result in unintended forward conduction or failure to clamp correctly. For DC applications requiring unidirectional protection, the P6SMB27A-M3/52 (same package, unidirectional) is the correct counterpart - both share identical VWM, VBR, and VC specs but differ fundamentally in conduction symmetry.
P6SMB27CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB27CA-M3/52 FAQ
1.How can I place an order for P6SMB27CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27CA-M3/52 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 P6SMB27CA-M3/52 reliable?
The price and inventory of P6SMB27CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB27CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27CA-M3/52?
P6SMB27CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27CA-M3/52 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 P6SMB27CA-M3/52?
For technical support, including P6SMB27CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB27CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB27CA-M3/52 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 P6SMB27CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB27CA-M3/52?
All P6SMB27CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27CA-M3/52, 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 P6SMB27CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB27CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27CA-M3/52 Tags
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