My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SM6T220CAHE3_A/H
;;2.jpg)
- Part No.:
- SM6T220CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T220CAHE3_A/H.pdf
- Description:
- TVS DIODE 188VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SM6T220CAHE3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 220 V breakdown voltage (VBR), 328 V maximum clamping voltage (VC) at 2.0 A IPPM (10/1000 μs), 600 W peak pulse power rating, and AEC-Q101 qualification for automotive use - deployed to protect MOSFETs and sensor interfaces against inductive switching surges.
For engineers reviewing the SM6T220CAHE3_A/H datasheet, SM6T220CAHE3_A/H pinout, SM6T220CAHE3_A/H application, or SM6T220CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, 188 V stand-off voltage (VWM), low leakage (<1.0 μA), thermal resistance (RθJA = 100 °C/W), and RoHS-compliant, halogen-free AEC-Q101 qualified construction.
Technical Context
The SM6T220CAHE3_A/H operates as a bidirectional avalanche diode with symmetrical clamping in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage under reverse bias up to 188 V.
It delivers 600 W peak pulse power handling per 10/1000 μs waveform with a clamping voltage of 328 V at 2.0 A, and maintains operation across -65 °C to +150 °C junction temperature range. The device meets MSL Level 1 and is rated for 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1.0 mA test current - defines reliable avalanche initiation threshold in both directions |
| VWM | 188 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 328 V at 2.0 A (10/1000 μs) - clamping voltage limiting transient energy delivered to protected circuitry |
| PPPM | 600 W - peak surge power dissipation capability under standardized lightning/surge waveform |
| ID @ VWM | <1.0 μA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss |
| TJ Range | -65 °C to +150 °C - supports under-hood automotive and industrial environments without derating |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally symmetric; device has two terminals only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no fixed polarity assignment |
| Terminal 2 | Anode / Cathode (bidirectional) | Paired terminal completing symmetrical avalanche path - enables clamping of positive and negative transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift over temperature and lifetime |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (e.g., ESD, load dump) due to compact geometry |
| MSL Level 1, 260 °C compatible | Supports standard lead-free SMT reflow without preconditioning or special handling |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed across sensor supply and ground pins. Use Value: Limits transient voltage to ≤328 V while maintaining 188 V operating margin - prevents latch-up or damage to analog front-end ICs. |
Use Scenario: Safeguarding CANH/CANL differential pair in vehicle body control modules against ESD and coupled noise. IC Role / Device Role / Timing Role: Symmetrical transient clamp between CANH and CANL lines, referenced to local ground. Use Value: Clamps ±328 V surges without polarity biasing, preserving signal integrity and meeting ISO 11898-2 EMC requirements. |
| Telecom Line Card Surge Suppression | Power Supply Input Stage Protection |
Use Scenario: Shielding Ethernet PHY interface and PoE detection circuitry from lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Bidirectional TVS across differential pairs and to chassis ground in front-end protection network. Use Value: Absorbs 600 W surge energy within 1 ms, preventing damage to magnetics and PHY ICs while maintaining <1 μA leakage at 188 V. |
Use Scenario: Guarding 24 V DC input rails of industrial PLCs against inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Primary clamping device placed between input rail and ground, upstream of bulk capacitance. Use Value: Clamps transients to 328 V before they reach downstream regulators, ensuring system uptime and reducing field failure rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same SMB package, 220 V VBR, but 600 W rating at 10/1000 μs; VC = 328 V at 2.0 A - identical clamping performance | No AEC-Q101 qualification; commercial-grade only | Select when automotive qualification is not required and cost optimization is prioritized |
| 1.5KE220CA | Through-hole DO-15 package, same 220 V VBR, but higher VC = 356 V at 1.7 A and larger footprint | Larger thermal mass but incompatible with automated SMT assembly; unsuitable for space-constrained PCBs | Choose only for legacy through-hole designs or where manual assembly and higher surge margin justify board area penalty |
Compared with SMBJ220CA and 1.5KE220CA, the SM6T220CAHE3_A/H uniquely combines AEC-Q101 qualification, SMB surface-mount compatibility, and identical 328 V clamping at 2.0 A - making it the only drop-in solution for automotive SMT designs requiring certified reliability.
Availability
SM6T220CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom line cards, and 24 V DC power supply input stages requiring stable component supply and long-term lifecycle support.
Supply support for SM6T220CAHE3_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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The SM6T Series is engineered specifically for robust transient voltage suppression in space-constrained, high-surge environments - emphasizing AEC-Q101 compliance, low-inductance SMB packaging, and precise bidirectional clamping control.
FAQ
What does the "CA" suffix indicate in SM6T220CAHE3_A/H?
The "CA" suffix in SM6T220CAHE3_A/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both polarities. This allows it to protect AC-coupled circuits, differential signal lines like CAN or RS-485, and ungrounded systems without requiring polarity-aware placement. Unlike unidirectional variants (e.g., SM6T220A), the SM6T220CAHE3_A/H has no cathode band marking and functions identically regardless of voltage polarity applied across its terminals.
Is SM6T220CAHE3_A/H suitable for automotive applications?
Yes, SM6T220CAHE3_A/H is explicitly AEC-Q101 qualified, as confirmed by its HE3 suffix and Vishay's ordering documentation. It is rated for operation from -65 °C to +150 °C, meets MSL Level 1, and is validated for under-hood environments including engine control units, body electronics, and ADAS sensor modules. Its 600 W surge rating and 328 V clamping voltage make it appropriate for protecting against load dump and ISO 7637-2 pulses.
What is the maximum clamping voltage of SM6T220CAHE3_A/H under surge conditions?
The maximum clamping voltage (VC) of SM6T220CAHE3_A/H is 328 V when subjected to a 10/1000 μs waveform at a peak pulse current (IPPM) of 2.0 A. This value is measured per JEDEC standards and represents the upper voltage limit imposed on protected circuitry during a standardized surge event. At lower currents, clamping voltage decreases proportionally - e.g., ~280 V at 1.0 A - ensuring tighter protection margins for smaller transients.
How does the SMB (DO-214AA) package of SM6T220CAHE3_A/H impact PCB layout?
The SMB (DO-214AA) package of SM6T220CAHE3_A/H requires minimal PCB area (typical footprint 3.94 mm × 2.20 mm) and uses standard SMT reflow profiles (peak 260 °C). Its low-inductance structure reduces voltage overshoot during fast transients, but demands adherence to Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout per terminal to maintain thermal performance and achieve rated 600 W pulse power. Thermal relief traces must be minimized to avoid derating.
What is the reverse leakage current specification for SM6T220CAHE3_A/H at rated VWM?
The reverse leakage current (ID) of SM6T220CAHE3_A/H is guaranteed to be less than 1.0 μA when biased at its maximum stand-off voltage (VWM) of 188 V and tested at 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in always-on automotive modules - critical for battery-operated ECUs and remote sensors where microamp-level drain must be controlled.
SM6T220CAHE3_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):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 2A
- 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)
SM6T220CAHE3_A/H FAQ
1.How can I place an order for SM6T220CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T220CAHE3_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 SM6T220CAHE3_A/H reliable?
The price and inventory of SM6T220CAHE3_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 SM6T220CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T220CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T220CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T220CAHE3_A/H?
SM6T220CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T220CAHE3_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 SM6T220CAHE3_A/H?
For technical support, including SM6T220CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T220CAHE3_A/H requirements.
6.How does Aetrix verify that SM6T220CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T220CAHE3_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 SM6T220CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T220CAHE3_A/H?
All SM6T220CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T220CAHE3_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 SM6T220CAHE3_A/H part is unused and in its original packaging.
Return procedure for SM6T220CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T220CAHE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
