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Vishay General Semiconductor - Diodes Division SA30CAHE3/54
- Part No.:
- SA30CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA30CAHE3/54.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,568
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Product details
Overview
SA30CAHE3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage at 10 A peak pulse current, 500 W peak pulse power rating with 10/1000 μs waveform, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA30CAHE3/54 datasheet, SA30CAHE3/54 pinout, SA30CAHE3/54 application, or SA30CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, TJ = -55 °C to +175 °C operating range, low incremental surge resistance, and compliance with JESD 201 Class 2 whisker testing.
Technical Context
The SA30CAHE3/54 operates as a voltage-clamping protection device that conducts above its breakdown voltage (VBR min/max = 33.3 V / 36.8 V at 1 mA) to divert transient energy away from sensitive downstream circuitry. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating polarity marking requirements.
It delivers 500 W peak pulse power dissipation under standardized 10/1000 μs waveform conditions with 0.01 % duty cycle, and maintains stable performance across -55 °C to +175 °C junction temperature range. The glass-passivated junction and matte tin-plated leads support robust solderability and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 33.3 V / 36.8 V at 1 mA - Confirmed breakdown threshold defining clamping onset |
| VC @ IPPM | 48.4 V at 10 A - Measured clamping voltage during 10/1000 μs transient, limiting stress on protected ICs |
| PPPM | 500 W - Peak transient energy absorption capacity per IEC 61000-4-5 standard waveform |
| TJ Range | -55 °C to +175 °C - Enables deployment in under-hood automotive and industrial control environments |
| Qualification | AEC-Q101 qualified - Validated for automotive electronics reliability and lifetime requirements |
| Package | DO-15 (DO-204AC) - Industry-standard axial leaded package compatible with legacy through-hole assembly |
Pinout & Package
SA30CAHE3/54 uses a DO-15 (DO-204AC) axial-leaded package with no polarity marking, consistent with bidirectional TVS construction. Leads are matte tin plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional conduction path | Identical electrical behavior in either orientation; no cathode band required |
| Lead 1 | Terminal A | One end of the PN junction; connects to line or rail requiring transient protection |
| Lead 2 | Terminal B | Opposite end of the PN junction; completes clamping path to ground or reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable leakage performance and long-term reliability under thermal cycling and humidity stress |
| 500 W peak pulse power (10/1000 μs) | Provides robust protection against IEC 61000-4-4/5 level 4 surges without degradation |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off) |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability applications over extended service life |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and chassis ground. Use Value: Limits voltage excursions to ≤48.4 V during 10 A transients, preventing damage to microcontrollers and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on differential or single-ended signal lines. Use Value: Clamps ESD events up to ±30 kV (air) while maintaining signal integrity due to fast response time and minimal leakage (<1 μA at 30 V). |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing 48 V DC input stages of PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk DC input prior to DC/DC conversion. Use Value: Absorbs 500 W surge energy without failure, enabling compliance with ITU-T K.20 and IEC 61000-4-5 standards. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-the-line snubber connected directly across motor terminals. Use Value: Diverts >10 A transient currents within nanoseconds, reducing electromagnetic interference and extending MOSFET lifespan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30CA | Same VWM (30 V), lower PPPM (400 W), SMA package (surface-mount) | Requires PCB rework for SMT assembly; unsuitable for through-hole legacy designs | Select when board space is constrained and reflow compatibility is required |
| P6SMB33CA | Higher VWM (33 V), same DO-214AA package, 600 W PPPM | Clamps at higher voltage (VC = 53.3 V @ 9.4 A); better for 3.3 V rail tolerance margins | Select when tighter VWM tolerance and higher surge margin are prioritized over exact 30 V match |
Compared with SMAJ30CA and P6SMB33CA, SA30CAHE3/54 offers AEC-Q101 qualification and DO-15 through-hole compatibility-critical for automotive service replacements and industrial retrofits where leaded assembly remains standard-and delivers precise 30 V stand-off with verified 48.4 V clamping at 10 A.
Availability
SA30CAHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply and long-lifecycle support.
Supply support for SA30CAHE3/54 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 and automotive-grade validation.
The SAxxCA series is engineered specifically for bidirectional transient suppression in harsh-environment applications, balancing clamping precision, surge robustness, and qualification rigor for mission-critical systems.
FAQ
What is the breakdown voltage range of the SA30CAHE3/54?
The SA30CAHE3/54 has a minimum breakdown voltage (VBR) of 33.3 V and a maximum of 36.8 V at 1 mA test current, as specified in the Vishay datasheet document 88378. This range defines the voltage threshold at which the SA30CAHE3/54 begins conducting significantly to clamp transients. The guaranteed VBR window ensures predictable clamping behavior across production lots and temperature extremes.
Is the SA30CAHE3/54 suitable for automotive applications?
Yes, the SA30CAHE3/54 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment systems. Its -55 °C to +175 °C operating junction temperature range, glass-passivated junction, and JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements. The SA30CAHE3/54 is explicitly listed in Vishay's AEC-Q101 qualified product table.
What does the "HE3/54" suffix indicate in SA30CAHE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "54" specifies the preferred package code for 13-inch paper tape and reel packaging with 4000 units per reel. This ordering code ensures traceable sourcing and consistent mechanical handling for automated assembly. The SA30CAHE3/54 is not interchangeable with non-HE3 variants in automotive production.
How does the clamping voltage of SA30CAHE3/54 compare to its stand-off voltage?
The SA30CAHE3/54 has a 30 V stand-off voltage (VWM) and clamps at 48.4 V when subjected to a 10 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This 18.4 V differential represents the voltage overhead required to activate full surge conduction-critical for ensuring protected ICs remain below absolute maximum ratings during transient events. The ratio VC/VWM = 1.61 reflects optimized junction design for fast, low-overshoot clamping.
Can SA30CAHE3/54 be used in bidirectional signal line protection?
Yes, SA30CAHE3/54 is explicitly designed for bidirectional applications, with symmetric electrical characteristics in both polarities. Its unmarked DO-15 package and matched VBR min/max values (33.3 V / 36.8 V) confirm true bidirectional operation-ideal for protecting AC-coupled data lines, RS-485 buses, or audio paths where polarity reversal may occur. Unlike unidirectional variants, SA30CAHE3/54 requires no orientation during placement.
SA30CAHE3/54 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 10A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA30CAHE3/54 FAQ
1.How can I place an order for SA30CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA30CAHE3/54 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 SA30CAHE3/54 reliable?
The price and inventory of SA30CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA30CAHE3/54 is usually 5 days.
3.What payment methods are accepted for SA30CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA30CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA30CAHE3/54?
SA30CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA30CAHE3/54 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 SA30CAHE3/54?
For technical support, including SA30CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA30CAHE3/54 requirements.
6.How does Aetrix verify that SA30CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All SA30CAHE3/54 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 SA30CAHE3/54 meets industry standards.
7.What is the process for return or replacement of SA30CAHE3/54?
All SA30CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA30CAHE3/54, 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 SA30CAHE3/54 part is unused and in its original packaging.
Return procedure for SA30CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA30CAHE3/54 Tags
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