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Vishay General Semiconductor - Diodes Division P6SMB24CAHE3/5B
- Part No.:
- P6SMB24CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB24CAHE3/5B.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB24CAHE3/5B 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 24 V standoff voltage (VWM), 33.2 V maximum clamping voltage (VC) at 18.1 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P6SMB24CAHE3/5B datasheet, P6SMB24CAHE3/5B pinout, P6SMB24CAHE3/5B application, or P6SMB24CAHE3/5B equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, low incremental surge resistance, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown in both directions, enabling robust transient suppression on AC-coupled or floating signal paths. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the SMB package supports high thermal dissipation under repetitive surge conditions.
The P6SMB24CAHE3/5B is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its 0.094 %/°C temperature coefficient of VBR ensures predictable clamping voltage drift across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 20.5 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown, min/max) | 22.8 V / 25.2 V at 1 mA - Confirmed voltage threshold where avalanche conduction initiates reliably in both directions. |
| VC (Clamping, max) | 33.2 V at 18.1 A - Peak voltage seen by downstream components during worst-case 10/1000 µs transient; critical for IC overvoltage margining. |
| IPPM | 18.1 A - Peak surge current handled without degradation; derived from 600 W rating and VC, defining protection capacity. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; enables protection against lightning-induced surges and inductive switching spikes. |
| TJ max. | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
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 | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; conducts surge current equally in either direction during overvoltage events. |
| Cathode | Transient current entry (bidirectional) | Second terminal of symmetrical PN junction; identical electrical role to Anode due to bidirectional construction; no band marking. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without derating in standard PCB layouts. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes voltage overshoot during transients, preserving margin for 3.3 V or 5 V logic interfaces and analog front-ends. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain, body electronics, and ADAS modules requiring zero-defect reliability and extended temperature operation. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without moisture sensitivity concerns, eliminating bake requirements in high-volume SMT lines. |
| Glass passivated junction | Ensures stable leakage current (<1 µA at VWM) and long-term parameter stability under thermal cycling and humidity stress. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs 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 entry point to shunt surge energy before it reaches transceiver ICs. Use Value: Maintains signal integrity under 100 V/50 ms load dump events while adding <1 pF parasitic capacitance to preserve CAN bit timing. |
Use Scenario: Safeguarding differential CAN H/L lines against ESD (IEC 61000-4-2 ±8 kV contact) and fast transient bursts in factory automation controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS pair (one per line) providing symmetrical clamping without disturbing differential signaling common-mode range. Use Value: Clamps transients to <35 V while maintaining <0.5 dB insertion loss up to 1 MHz - ensuring CAN FD data integrity at 5 Mbps. |
| Consumer Power Adapter Output Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-side overvoltage protection on 12 V/24 V DC outputs of wall adapters and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to clamp residual transients escaping primary-side protection. Use Value: Limits output voltage to 33.2 V during 600 W surges, preventing damage to connected USB-PD controllers or battery management ICs. |
Use Scenario: Primary protection on DSL line cards against induced surges from nearby power lines or lightning coupling into twisted-pair copper infrastructure. IC Role / Device Role / Timing Role: High-energy bidirectional suppressor mounted at line interface transformer secondary to absorb longitudinal mode surges. Use Value: Handles 10/1000 µs surges up to 600 W without degradation, meeting GR-1089-CORE Level 3 telecom surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24CA | Same VWM (20.5 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA). | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-4 Level 3. |
| 1.5KE24CA | Same VWM and bidirectional function, but through-hole DO-201 package; 1500 W PPPM, higher VC (38.9 V). | Higher clamping voltage reduces system-level overvoltage margin; incompatible with SMT-only production. | Choose only for legacy through-hole designs requiring higher single-pulse energy absorption, not for new SMT automotive platforms. |
Compared with SMAJ24CA and 1.5KE24CA, the P6SMB24CAHE3/5B delivers optimal balance of automotive qualification, 600 W surge handling, low-profile SMB packaging, and tight clamping - making it the preferred choice for new SMT-based automotive and industrial designs requiring AEC-Q101 compliance.
Availability
P6SMB24CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer power adapters, and telecom DSL line cards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB24CAHE3/5B 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 diodes, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom applications - engineered for AEC-Q101 compliance, low clamping ratios, and robust surge endurance in compact SMB packages.
FAQ
What is the clamping voltage of P6SMB24CAHE3/5B at its rated peak pulse current?
The P6SMB24CAHE3/5B has a maximum clamping voltage (VC) of 33.2 V at 18.1 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and confirmed in the Vishay datasheet revision 09-Jan-2024. The P6SMB24CAHE3/5B maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C) with minimal drift due to its 0.094 %/°C VBR temperature coefficient.
Is P6SMB24CAHE3/5B suitable for automotive applications?
Yes, the P6SMB24CAHE3/5B is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 Rev D. The P6SMB24CAHE3/5B is explicitly recommended for automotive sensor units, body control modules, and infotainment systems where transient immunity and long-term reliability are mandatory.
What does the "CA" suffix mean in P6SMB24CAHE3/5B?
The "CA" suffix in P6SMB24CAHE3/5B denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics in forward and reverse directions. This eliminates the need for polarity-aware placement and makes the P6SMB24CAHE3/5B ideal for protecting AC-coupled lines, differential buses like CAN, or floating sensor outputs.
What is the maximum operating temperature for P6SMB24CAHE3/5B?
The P6SMB24CAHE3/5B has a maximum junction temperature (TJ) of +150 °C and an operating storage temperature range of -65 °C to +150 °C. Its thermal resistance from junction to ambient (RθJA) is 100 °C/W under standard mounting conditions (0.2" × 0.2" copper pads), allowing reliable operation in under-hood automotive and industrial control cabinet environments. Derating curves in the P6SMB24CAHE3/5B datasheet confirm usable power dissipation down to 50 % at 100 °C ambient.
How does the P6SMB24CAHE3/5B compare to unidirectional variants like P6SMB24AHE3/5B?
The P6SMB24CAHE3/5B differs from unidirectional P6SMB24AHE3/5B solely in polarity configuration: the "CA" version is bidirectional with no cathode marking and symmetrical VBR/VC in both directions, while the "A" version is unidirectional with a marked cathode band and conducts only in reverse bias. Both share identical VWM (20.5 V), PPPM (600 W), and AEC-Q101 qualification. The P6SMB24CAHE3/5B is selected when protecting balanced or AC-signaled lines where polarity cannot be guaranteed.
P6SMB24CAHE3/5B 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
P6SMB24CAHE3/5B FAQ
1.How can I place an order for P6SMB24CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB24CAHE3/5B 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 P6SMB24CAHE3/5B reliable?
The price and inventory of P6SMB24CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB24CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB24CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB24CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB24CAHE3/5B?
P6SMB24CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB24CAHE3/5B 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 P6SMB24CAHE3/5B?
For technical support, including P6SMB24CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB24CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB24CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB24CAHE3/5B 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 P6SMB24CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB24CAHE3/5B?
All P6SMB24CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB24CAHE3/5B, 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 P6SMB24CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB24CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB24CAHE3/5B Tags
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