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Vishay General Semiconductor - Diodes Division SM6T22CAHE3_A/H
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- Part No.:
- SM6T22CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T22CAHE3_A/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,658
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Product details
Overview
SM6T22CAHE3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 22 V breakdown voltage (VBR = 20.9–23.1 V at IT = 1.0 mA), and 30.6 V maximum clamping voltage (VC) at IPPM. It provides robust ESD and surge protection for automotive sensor signal lines.
For engineers reviewing the SM6T22CAHE3_A/H datasheet, SM6T22CAHE3_A/H pinout, SM6T22CAHE3_A/H application, or SM6T22CAHE3_A/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, 150 °C max junction temperature, low inductance, and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VWM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM = 18.8 V) and repeatable clamping performance under repetitive transients.
The device is thermally optimized for surface-mount reliability: RθJA = 100 °C/W (typ.), RθJL = 20 °C/W (typ.), and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak. AEC-Q101 qualification confirms suitability for automotive powertrain and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at IT = 1.0 mA - defines reliable conduction onset under surge conditions |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 30.6 V at 20.0 A (10/1000 μs) - clamping voltage limiting downstream IC stress during 600 W transient |
| PPPM | 600 W - peak pulse power handling capability per standard 10/1000 μs waveform |
| TJ max | +150 °C - enables operation in under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMT outline with 2.20 mm height and 5.59 mm length |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
SM6T22CAHE3_A/H uses an SMB (DO-214AA) surface-mount package with two terminals: anode and cathode. As a bidirectional device, it has no polarity marking; both terminals are functionally symmetric and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | Accepts surge current regardless of voltage polarity; connects to protected line |
| Cathode | Transient current exit point (either polarity) | Completes low-impedance path to ground or reference rail during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges on automotive data buses |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 rating | Supports standard lead-free reflow without baking or special handling prior to assembly |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and infotainment interfaces |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤30.6 V, preventing latch-up or damage to 3.3 V/5 V ADC front-ends while maintaining signal integrity. | Use Scenario: Guarding CAN_H/CAN_L differential pair against ESD (IEC 61000-4-2 ±15 kV) and fast transients in factory automation gateways. IC Role / Device Role / Timing Role: Low-inductance bidirectional TVS mounted directly at connector entry point. Use Value: Clamps common-mode surges without distorting CAN bit timing due to sub-1 nH parasitic inductance and symmetrical response. |
| Consumer USB Type-C Port | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB Type-C CC and VCONN lines against hot-plug ESD events in portable docking stations. IC Role / Device Role / Timing Role: Standalone bidirectional TVS placed inline with each CC pin before controller IC. Use Value: Maintains <1.0 μA leakage at 5 V VWM, ensuring proper USB PD negotiation while surviving ±15 kV contact discharge. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Primary surge suppression stage before transformer-coupled interface IC. Use Value: Absorbs up to 600 W (10/1000 μs) without degradation, preserving signal fidelity over 0.1–30 MHz band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | 400 W PPPM, same VBR range, SMA package (larger footprint, higher RθJA) | Lower power handling; less suitable for ISO 7637-2 Pulse 5a load dump | Select when board space allows larger package and surge energy is limited to ≤400 W |
| 1.5KE22CA | 1500 W PPPM, through-hole DO-201 package, higher VC (35.5 V) | Not SMT-compatible; requires wave soldering; higher clamping increases IC stress | Choose only for legacy through-hole designs where 1.5 kW surge margin outweighs SMT and layout constraints |
Compared with SMAJ22CA and 1.5KE22CA, SM6T22CAHE3_A/H delivers optimal balance of 600 W surge capacity, SMB footprint, AEC-Q101 qualification, and 30.6 V clamping-making it the preferred choice for new automotive and industrial SMT designs requiring certified reliability.
Availability
SM6T22CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer USB-C docking systems, and telecom DSL line interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for SM6T22CAHE3_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, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade performance.
The SM6T Series is designed specifically for surface-mount transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where bidirectional clamping, AEC-Q101 validation, and consistent 600 W surge capability are mandatory.
FAQ
What does the "CA" suffix indicate in SM6T22CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration: SM6T22CAHE3_A/H clamps transient voltages equally in both polarities, unlike unidirectional variants (e.g., SM6T22A). This eliminates polarity concerns during PCB layout and enables protection of AC-coupled or floating signal paths without external diode pairing. The CA version maintains identical VBR, VC, and PPPM specs in either direction, confirmed in Vishay's SM6T datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SM6T22CAHE3_A/H compatible with lead-free reflow processes?
Yes, SM6T22CAHE3_A/H meets J-STD-020 MSL Level 1 and supports peak reflow temperatures up to 260 °C, fully compliant with RoHS and lead-free soldering requirements. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and the molding compound is UL 94 V-0 rated. No pre-baking is required, simplifying manufacturing flow for high-volume SMT assembly.
How does the AEC-Q101 qualification impact SM6T22CAHE3_A/H usage?
SM6T22CAHE3_A/H's AEC-Q101 qualification certifies its reliability for automotive applications, including extended temperature operation (−65 °C to +150 °C), resistance to mechanical shock/vibration, and robustness against humidity, temperature cycling, and high-temperature reverse bias. This enables direct use in engine control units, ADAS camera modules, and body electronics without additional qualification testing by the end customer.
What is the maximum clamping voltage of SM6T22CAHE3_A/H under standard test conditions?
The maximum clamping voltage (VC) of SM6T22CAHE3_A/H is 30.6 V when subjected to a 10/1000 μs waveform at IPPM = 20.0 A, as specified in the Vishay SM6T datasheet Table "ELECTRICAL CHARACTERISTICS". This value is measured across both terminals during transient conduction and represents the upper limit of voltage imposed on protected circuitry during a 600 W surge event.
Can SM6T22CAHE3_A/H replace SM6T22A in an existing design?
No-SM6T22CAHE3_A/H is bidirectional while SM6T22A is unidirectional; they are not functionally interchangeable. Replacing SM6T22A with SM6T22CAHE3_A/H may cause improper clamping on DC-biased lines or violate polarity-sensitive protection schemes. Layout, grounding, and system-level surge testing must be revalidated. Use SM6T22CAHE3_A/H only where bidirectional symmetry is explicitly required and verified.
SM6T22CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 20A
- 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 (SMBJ)
SM6T22CAHE3_A/H FAQ
1.How can I place an order for SM6T22CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T22CAHE3_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 SM6T22CAHE3_A/H reliable?
The price and inventory of SM6T22CAHE3_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 SM6T22CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T22CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T22CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T22CAHE3_A/H?
SM6T22CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T22CAHE3_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 SM6T22CAHE3_A/H?
For technical support, including SM6T22CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T22CAHE3_A/H requirements.
6.How does Aetrix verify that SM6T22CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T22CAHE3_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 SM6T22CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T22CAHE3_A/H?
All SM6T22CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T22CAHE3_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 SM6T22CAHE3_A/H part is unused and in its original packaging.
Return procedure for SM6T22CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T22CAHE3_A/H Tags
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