My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6J22AHM3/61
- Part No.:
- SMA6J22AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J22AHM3/61.pdf
- Description:
- TVS DIODE 22VWM 34.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,479
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6J22AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of sensitive electronics. It features a 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR at IT = 1 mA), 34.5 V maximum clamping voltage at 17.4 A (10/1000 μs), 600 W peak pulse power rating, and operates across –55 °C to +150 °C junction temperature range. It is used to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial and telecom equipment.
For engineers reviewing the SMA6J22AHM3/61 datasheet, SMA6J22AHM3/61 pinout, SMA6J22AHM3/61 application, or SMA6J22AHM3/61 equivalent, key selection criteria include clamping voltage at rated IPP, unidirectional polarity requirement, SMA package thermal resistance (RθJA = 120 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (< 0.2 μA leakage at 22 V), then rapidly avalanches when reverse voltage exceeds VBR to clamp transient energy. Its dynamic resistance (RD = 0.437 Ω) directly determines clamping voltage rise above VBR per surge current (VCL = RD × IPP + VBRmax).
The device is optimized for PCB-level surge immunity per IEC 61000-4-5 (8/20 μs waveform, 4000 W capability) and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Its halogen-free, RoHS-compliant M3 suffix and UL 94 V-0 molding compound meet industrial-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before significant leakage; defines circuit's normal operating margin. |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Breakdown threshold range; ensures reliable triggering without premature conduction. |
| VC @ IPP (10/1000 μs) | 34.5 V at 17.4 A - Clamped voltage during standard surge test; determines protected IC's maximum stress exposure. |
| PPPM (10/1000 μs) | 600 W - Peak transient power handling capacity; sets survivability limit for common inductive load spikes. |
| IFSM | 50 A - Non-repetitive forward surge rating; supports brief fault-current events without bond-wire failure. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial environments with derating. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on standard 5 mm × 5 mm copper pads; guides PCB thermal layout. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 4.50 mm × 2.79 mm × 2.20 mm (L × W × H); weight 0.064 g; UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient current sink path | Connected to protected line's low-side reference (e.g., GND or return path) during clamping event. |
| Cathode | Reverse-biased terminal / clamping node | Connected to protected line (e.g., signal or power rail); avalanche conduction begins here when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables precise clamping only on negative transients relative to cathode; avoids forward-conduction interference in DC-biased lines. |
| MSL Level 1 moisture sensitivity | Permits unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
| Halogen-free & RoHS-compliant (M3) | Meets global environmental regulations and eliminates corrosive halogen emissions during board assembly or field failure. |
| Low dynamic resistance (RD) | 0.437 Ω ensures minimal clamping voltage overshoot - critical for protecting 3.3 V or 5 V logic interfaces. |
| 150 °C maximum junction temperature | Supports sustained operation in enclosed industrial enclosures or near heat-generating components without derating penalties. |
Applications
| Industrial Motor Control | Telecom Power Supply Input |
|---|---|
|
Use Scenario: Protecting gate drivers and microcontroller I/O pins from flyback voltage spikes generated by relay or solenoid coil de-energization. IC Role / Device Role / Timing Role: Shunt clamping element placed between MOSFET gate and source, triggered within nanoseconds of overvoltage onset. Use Value: Limits gate-source voltage to ≤34.5 V, preventing oxide breakdown in 40 V-rated logic-level MOSFETs while surviving 50 A surge currents. |
Use Scenario: Safeguarding primary-side controller ICs and bulk capacitor inputs against AC line surges and lightning-induced transients entering via telecom power adapters. IC Role / Device Role / Timing Role: First-line transient suppressor mounted directly at AC/DC converter input terminals, clamping 8/20 μs surges up to 4000 W. Use Value: Maintains system uptime by absorbing 600 W (10/1000 μs) without degradation, enabling compliance with IEC 61000-4-5 Level 3. |
| Automotive Body Control Module | Consumer Sensor Interface Protection |
|
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers from load dump and jump-start induced transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN data line and chassis ground, activated only during negative-going spikes. Use Value: Withstands 22 V stand-off and clamps to 34.5 V, preserving signal integrity while meeting ISO 7637-2 Pulse 1/2a immunity requirements. |
Use Scenario: Guarding analog outputs of temperature/humidity sensors against ESD events and cable discharge in smart home hubs and wearables. IC Role / Device Role / Timing Role: Low-capacitance (typ. < 100 pF at 0 V) shunt protector on sensor output trace, minimizing signal distortion. Use Value: Provides < 0.2 μA leakage at 22 V, ensuring no measurable offset error in 16-bit ADC front-ends while passing IEC 61000-4-2 ±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J22A-E3/61 | Same electrical specs and package, but RoHS-compliant with lead finish containing lead (E3 suffix), not halogen-free. | Approved for industrial use where halogen-free mandate does not apply; not suitable for automotive or green-certified products. | Select SMA6J22A-E3/61 if leaded finish is acceptable and halogen-free compliance is not required. |
| SMBJ22A-M3/52 | Higher 600 W rating retained, but SMB (DO-214AA) package offers 20 % larger pad area and lower RθJA (90 °C/W vs. 120 °C/W). | Better thermal performance in high-power or high-ambient designs; requires PCB footprint change due to wider body (4.57 mm vs. 2.79 mm width). | Choose SMBJ22A-M3/52 when thermal headroom is constrained and board space allows larger package. |
Compared with SMA6J22AHM3/61, the E3 variant trades halogen-free status for broader legacy qualification, while the SMBJ22A-M3/52 improves thermal dissipation at the cost of footprint compatibility - both require explicit validation for mechanical fit and thermal margin in the target design.
Availability
SMA6J22AHM3/61 is available at Aetrix Electronics and suitable for industrial motor control, telecom power supply input, and automotive body control module applications requiring stable component supply, long-term lifecycle support, and halogen-free compliance.
Supply support for SMA6J22AHM3/61 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 reliability, precision, and application-specific optimization.
The SMA6J series is part of Vishay's Transient Voltage Suppressor portfolio, engineered specifically for high-energy, surface-mount surge protection in space-constrained industrial and communications systems where MSL Level 1 reflow and halogen-free compliance are mandatory.
FAQ
What is the clamping voltage of the SMA6J22AHM3/61 at its rated peak pulse current?
The SMA6J22AHM3/61 has a maximum clamping voltage (VC) of 34.5 V at 17.4 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a typical inductive switching transient. The SMA6J22AHM3/61 maintains this clamping performance across its specified operating temperature range.
Does the SMA6J22AHM3/61 support automated SMT assembly?
Yes, the SMA6J22AHM3/61 is qualified for automated surface-mount assembly. Its SMA (DO-214AC) package meets MSL Level 1 per J-STD-020, allowing unlimited floor life and standard 260 °C peak reflow without preconditioning. Matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, ensuring consistent wetting and joint reliability for the SMA6J22AHM3/61.
Is the SMA6J22AHM3/61 unidirectional or bidirectional?
The SMA6J22AHM3/61 is a unidirectional transient voltage suppressor, meaning it conducts only in reverse bias above its breakdown voltage and blocks forward current like a standard diode. Its cathode band marking identifies the terminal that must be connected to the line being protected. This polarity makes the SMA6J22AHM3/61 suitable for DC-biased applications such as power rails and digital I/O lines.
What is the maximum junction temperature rating for the SMA6J22AHM3/61?
The SMA6J22AHM3/61 has a maximum junction temperature (TJ max.) of +150 °C, enabling reliable operation in high-ambient environments such as enclosed industrial drives or under-hood automotive modules. Thermal design must account for its junction-to-ambient thermal resistance of 120 °C/W on standard 5 mm × 5 mm copper pads, and derating curves in the datasheet apply above TA = 25 °C.
How does the M3 suffix affect the material composition of the SMA6J22AHM3/61?
The M3 suffix on the SMA6J22AHM3/61 indicates halogen-free, RoHS-compliant construction with no brominated flame retardants in the epoxy molding compound. It also meets JESD 201 Class 2 whisker resistance and carries Vishay's industrial-grade qualification. This distinguishes the SMA6J22AHM3/61 from E3-suffix variants, which are RoHS-compliant but contain lead in the termination finish and are not halogen-free.
SMA6J22AHM3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 34.5V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J22AHM3/61 FAQ
1.How can I place an order for SMA6J22AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J22AHM3/61 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 SMA6J22AHM3/61 reliable?
The price and inventory of SMA6J22AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J22AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J22AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J22AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J22AHM3/61?
SMA6J22AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J22AHM3/61 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 SMA6J22AHM3/61?
For technical support, including SMA6J22AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J22AHM3/61 requirements.
6.How does Aetrix verify that SMA6J22AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J22AHM3/61 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 SMA6J22AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J22AHM3/61?
All SMA6J22AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J22AHM3/61, 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 SMA6J22AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J22AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J22AHM3/61 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
