My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J22AHE3_A/H
- Part No.:
- SMA5J22AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J22AHE3_A/H.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,061
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J22AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR), 35.5 V clamping voltage at 14.1 A peak pulse current, 500 W peak pulse power rating, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J22AHE3_A/H datasheet, SMA5J22AHE3_A/H pinout, SMA5J22AHE3_A/H application, or SMA5J22AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs transients, junction temperature derating above 25 °C, unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, activating when reverse voltage exceeds VBR to divert surge current away from sensitive downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting MOSFET gates and IC inputs against ESD and inductive switching spikes.
Thermal design relies on low RθJA (80 °C/W) and RθJL (25 °C/W), enabling reliable operation up to TJ = 150 °C. The device is rated for non-repetitive 8.3 ms half-sine surges up to 40 A (IFSM) and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC bias margin. |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 35.5 V at 14.1 A (10/1000 µs) - Clamping voltage during worst-case surge; determines maximum stress on protected IC. |
| PPPM | 500 W - Peak pulse power handling capability; supports robust protection against lightning-induced or load-switching transients. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); validates resilience to short-duration overcurrent events. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial ambient environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band at one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; carries surge current during clamping. |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to higher-potential side; initiates avalanche breakdown when VRM > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over lifetime and temperature extremes. |
| MSL Level 1 (260 °C) | Enables single-reflow assembly without moisture-related popcorning or delamination risk. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic interfaces. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and ground to clamp surges exceeding 22 V. Use Value: Limits voltage seen by downstream PMICs and microcontrollers to ≤35.5 V during 14.1 A 10/1000 µs pulses, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal line to absorb ESD and switching noise without distorting millivolt-level signals. Use Value: Maintains signal integrity with <1.0 µA leakage at 22 V and fast sub-nanosecond response, avoiding baseline shift or sampling error. |
| Consumer USB Power Delivery Protection | Telecom Base Station DC Feed Protection |
Use Scenario: Guarding USB-C PD port input stages against hot-plug transients and cable discharge events. IC Role / Device Role / Timing Role: Primary clamping device on VBUS line upstream of buck converter and load switch. Use Value: Withstands 500 W surges while maintaining 22 V operational headroom, ensuring compliance with IEC 61000-4-5 Level 4 immunity requirements. |
Use Scenario: Protecting remote radio unit (RRU) DC power feed lines from induced lightning surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: First-stage TVS on -48 V DC supply rail, coordinated with MOVs and gas discharge tubes. Use Value: Provides precise 35.5 V clamping to prevent overvoltage failure of GaN FETs and monitoring ICs, extending system uptime in harsh environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J22A-E3/61 | Commercial-grade (non-AEC-Q101), same electrical specs and SMA package. | Lacks automotive qualification; suitable for consumer/industrial designs not requiring AEC validation. | Select when cost sensitivity outweighs automotive reliability requirements and no temperature cycling or HTRB validation is needed. |
| SMA6J22AHE3_A/H | 600 W PPPM, identical VWM/VBR/VC, same AEC-Q101 qualification and package. | Higher surge energy handling; used where IEC 61000-4-5 Level 5 or ISO 7637-2 Pulse 5a stress levels apply. | Choose when system-level surge testing requires ≥600 W clamping capacity while retaining footprint and thermal profile compatibility. |
Compared with SMA5J22AHE3_A/H, SMA5J22A-E3/61 reduces qualification overhead but forfeits automotive traceability, while SMA6J22AHE3_A/H delivers 20 % higher pulse power without layout change-enabling scalable protection across platform variants.
Availability
SMA5J22AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMA5J22AHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMA5J series targets high-power-density transient suppression in space-constrained SMT designs, with focus on automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust 10/1000 µs surge handling.
FAQ
What is the clamping voltage of the SMA5J22AHE3_A/H under standard test conditions?
The SMA5J22AHE3_A/H has a maximum clamping voltage (VC) of 35.5 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 14.1 A. This value is measured at TA = 25 °C with the device mounted on 5.0 mm × 5.0 mm copper pads per the recommended layout. The SMA5J22AHE3_A/H maintains this clamping performance across its qualified operating temperature range.
Is the SMA5J22AHE3_A/H suitable for automotive applications?
Yes, the SMA5J22AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per the AEC-Q101 standard. The SMA5J22AHE3_A/H is commonly deployed in engine control units, body electronics, and ADAS power rails where reliability under thermal and mechanical stress is mandatory.
How does the SMA5J22AHE3_A/H differ from bidirectional TVS diodes like SMA5J22CA?
The SMA5J22AHE3_A/H is unidirectional and functions only in reverse-bias clamping mode, with cathode marked by a band. In contrast, SMA5J22CA is bidirectional and provides symmetrical clamping in both polarities, with no polarity marking. The SMA5J22AHE3_A/H offers lower leakage (<1.0 µA at 22 V) and is preferred for DC power line protection, whereas SMA5J22CA suits AC-coupled or differential signal lines.
What is the thermal resistance specification for the SMA5J22AHE3_A/H?
The SMA5J22AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead resistance (RθJL) of 25 °C/W, measured under standard JEDEC conditions with recommended PCB pad layout. These values enable accurate thermal modeling for designs operating up to +150 °C junction temperature, especially in automotive under-hood environments where the SMA5J22AHE3_A/H is frequently deployed.
Can the SMA5J22AHE3_A/H be used in automated SMT assembly processes?
Yes, the SMA5J22AHE3_A/H is optimized for automated surface-mount placement with its low-profile SMA (DO-214AC) package and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. It meets MSL Level 1 with a 260 °C reflow peak, eliminating pre-baking requirements. The SMA5J22AHE3_A/H is supplied in 7" tape-and-reel format (code H, 1800 units/reel), supporting high-volume manufacturing.
SMA5J22AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 14.1A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J22AHE3_A/H FAQ
1.How can I place an order for SMA5J22AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J22AHE3_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 SMA5J22AHE3_A/H reliable?
The price and inventory of SMA5J22AHE3_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 SMA5J22AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMA5J22AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J22AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J22AHE3_A/H?
SMA5J22AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J22AHE3_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 SMA5J22AHE3_A/H?
For technical support, including SMA5J22AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J22AHE3_A/H requirements.
6.How does Aetrix verify that SMA5J22AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMA5J22AHE3_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 SMA5J22AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMA5J22AHE3_A/H?
All SMA5J22AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J22AHE3_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 SMA5J22AHE3_A/H part is unused and in its original packaging.
Return procedure for SMA5J22AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J22AHE3_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 …
