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Vishay General Semiconductor - Diodes Division SAC22-E3/54
- Part No.:
- SAC22-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SAC22-E3/54.pdf
- Description:
- TVS DIODE 22VWM 35.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,875
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Product details
Overview
SAC22-E3/54 from Vishay General Semiconductor is a unidirectional low-capacitance TRANSZORB® transient voltage suppressor (TVS) diode in DO-15 package, designed for clamping fast voltage transients on signal or power lines. It features a 22 V working peak reverse voltage (VWM), 24.4 V minimum breakdown voltage at 1 mA, 35.4 V maximum clamping voltage at 5 A, 500 W peak pulse power (10/1000 µs), and operates from –55 °C to +175 °C junction temperature.
For engineers reviewing the SAC22-E3/54 datasheet, SAC22-E3/54 pinout, SAC22-E3/54 application, or SAC22-E3/54 equivalent, key selection criteria include clamping voltage under 5 A surge, unidirectional polarity for DC line protection, DO-15 mechanical compatibility, thermal derating above 25 °C, and compliance with JESD 22-B106 soldering conditions.
Technical Context
The SAC22-E3/54 functions as a unidirectional avalanche diode that enters conduction when reverse voltage exceeds its breakdown threshold (24.4–27.0 V), limiting transient energy by shunting excess current to ground. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5 µA at 22 V).
Designed for single-pulse transient suppression per IEC 61000-4-5 (10/1000 µs waveform), it delivers 500 W peak pulse power with low incremental surge resistance and fast response time (<1 ns), enabling protection of downstream ICs, MOSFETs, and sensor interfaces against inductive switching and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 24.4 V at 1 mA - Ensures reliable turn-on above normal operating voltage margin |
| VC (max) | 35.4 V at IPP = 5 A - Limits voltage seen by protected circuit during defined surge event |
| PPPM | 500 W (10/1000 µs) - Sustains high-energy transients without failure |
| ID (max) | 5 µA at VWM - Minimizes standby power loss and avoids false triggering |
| TJ max. | +175 °C - Supports operation in high-temperature industrial and automotive under-hood environments |
| Package | DO-15 (DO-204AC) - Industry-standard axial leaded package with 0.250" lead spacing and UL 94 V-0 molding |
Pinout & Package
DO-15 (DO-204AC) package: axial-leaded, molded epoxy body with cathode band marking; lead length ≥1.0" (25.4 mm), diameter 0.130–0.138" (3.3–3.5 mm), weight 0.432 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected line's lower-potential side (e.g., GND or return path) |
| Cathode | Reverse-biased clamping terminal | Connected to protected line's higher-potential side (e.g., VCC or signal line); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling |
| 500 W peak pulse power (10/1000 µs) | Handles high-energy transients common in industrial motor drives and telecom power supplies |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs during surge events |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102, supporting automated assembly |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance for high-reliability applications |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protection of gate drivers and feedback circuits in variable-frequency drives subjected to inductive kickback from relay coils and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across DC bus or signal input to clamp voltage spikes before they reach control ICs. Use Value: Prevents latch-up or permanent damage to microcontrollers and isolated gate drivers by limiting transients to ≤35.4 V at 5 A surge. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in engine control units from load dump and alternator ripple. IC Role / Device Role / Timing Role: Standoff protection device on low-voltage analog lines (5–24 V range), leveraging 22 V VWM to avoid interference during normal operation. Use Value: Maintains signal integrity with <5 µA leakage at 22 V while surviving repetitive 500 W pulses per ISO 7637-2 Pulse 1/2a. |
| Telecom Power Supply | Consumer USB Port Protection |
Use Scenario: Input-stage surge suppression on 24 V/48 V telecom rectifier modules exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary clamping element on DC output rail, coordinated with upstream MOVs and fuses. Use Value: Provides precise 35.4 V clamping ceiling compatible with 42 V-rated DC-DC controllers and reduces need for oversized capacitors. | Use Scenario: Reverse-polarity and ESD protection on 5 V USB VBUS lines in portable docking stations and smart hubs. IC Role / Device Role / Timing Role: Unidirectional standoff protector between upstream power source and downstream port controller IC. Use Value: Blocks >22 V faults while allowing full 5 V operation with negligible leakage, meeting USB-IF voltage tolerance 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 |
|---|---|---|---|
| SMBJ22A | DO-214AA package; 35.1 V VC at 5 A; 600 W PPPM; slightly lower clamping voltage | Surface-mount alternative requiring PCB layout change; better thermal dissipation on copper pour | Select SMBJ22A when space-constrained designs demand SMD mounting and higher pulse rating is needed |
| P6KE22A | DO-15 package; 36.0 V VC at 5.1 A; 600 W PPPM; higher clamping voltage and larger junction capacitance | Legacy through-hole option with broader industry familiarity but less stringent leakage (<10 µA) | Choose P6KE22A only if existing DO-15 footprint must be retained and 36.0 V clamping is acceptable |
Compared with SMBJ22A and P6KE22A, the SAC22-E3/54 offers tighter clamping (35.4 V), lower leakage (<5 µA), and RoHS-compliant E3 plating-making it optimal for new industrial and automotive designs where precision clamping and long-term reliability are critical.
Availability
SAC22-E3/54 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, and telecom power supply applications requiring stable component supply, consistent DO-15 form factor, and verified transient suppression performance.
Supply support for SAC22-E3/54 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, thermal performance, and application-specific optimization.
The SAC series was developed specifically for high-energy, low-leakage transient suppression in harsh-environment DC power and signal lines-targeting industrial automation, transportation, and infrastructure systems.
FAQ
What is the maximum clamping voltage of the SAC22-E3/54 at 5 A surge current?
The SAC22-E3/54 has a maximum clamping voltage (VC) of 35.4 V when subjected to a 5 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across the operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The SAC22-E3/54 achieves this clamping performance while maintaining low leakage and stable breakdown characteristics.
Is the SAC22-E3/54 suitable for bidirectional transient protection?
No, the SAC22-E3/54 is a unidirectional TVS diode and is not suitable for bidirectional protection. It conducts only in reverse bias above its breakdown voltage and blocks forward current like a standard diode. For AC or bidirectional signal lines, two SAC22-E3/54 devices must be used in series opposition, or a dedicated bidirectional part such as SAC22C-E3/54 should be selected instead.
What is the junction operating temperature range for the SAC22-E3/54?
The SAC22-E3/54 supports a junction and storage temperature range of –55 °C to +175 °C. This wide range enables deployment in extreme environments including under-hood automotive systems, industrial motor drives, and outdoor telecom equipment. Derating of peak pulse power applies above 25 °C ambient, per Figure 2 in the official Vishay datasheet for SAC22-E3/54.
Does the SAC22-E3/54 meet RoHS requirements?
Yes, the SAC22-E3/54 carries the E3 suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and Vishay's material categorization standard. It also satisfies JESD 201 Class 1A whisker resistance testing, making it appropriate for high-reliability applications where tin whisker growth could compromise long-term solder joint integrity.
What is the typical reverse leakage current of the SAC22-E3/54 at its rated standoff voltage?
At its 22 V working peak reverse voltage (VWM), the SAC22-E3/54 exhibits a maximum reverse leakage current (ID) of 5 µA at 25 °C. This low leakage minimizes power loss in standby mode and prevents false triggering in precision analog or low-power sensor circuits. Leakage increases with temperature but remains within specification up to +175 °C junction temperature.
SAC22-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- 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:
- 35.4V
- Current - Peak Pulse (10/1000µs):
- 14A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SAC22-E3/54 FAQ
1.How can I place an order for SAC22-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SAC22-E3/54 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 SAC22-E3/54 reliable?
The price and inventory of SAC22-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAC22-E3/54 is usually 5 days.
3.What payment methods are accepted for SAC22-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAC22-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAC22-E3/54?
SAC22-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAC22-E3/54 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 SAC22-E3/54?
For technical support, including SAC22-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAC22-E3/54 requirements.
6.How does Aetrix verify that SAC22-E3/54 is sourced from the original manufacturer or authorized distributors?
All SAC22-E3/54 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 SAC22-E3/54 meets industry standards.
7.What is the process for return or replacement of SAC22-E3/54?
All SAC22-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SAC22-E3/54, 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 SAC22-E3/54 part is unused and in its original packaging.
Return procedure for SAC22-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SAC22-E3/54 Tags
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