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Vishay General Semiconductor - Diodes Division SMA5J30C-E3/5A
- Part No.:
- SMA5J30C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30C-E3/5A.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,043
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Product details
Overview
SMA5J30C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection on signal and power lines. It features a 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification - used in automotive sensor interface protection.
For engineers reviewing the SMA5J30C-E3/5A datasheet, SMA5J30C-E3/5A pinout, SMA5J30C-E3/5A application, or SMA5J30C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin plating for automated SMT assembly.
Technical Context
This TVS diode operates symmetrically in both directions due to its bi-directional construction, enabling suppression of positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the DO-214AC package provides low thermal resistance (RθJA = 80 °C/W) and compatibility with standard reflow profiles up to 260 °C peak.
The device meets AEC-Q101 stress requirements for automotive applications and delivers consistent clamping performance across -55 °C to +150 °C junction temperature range. Its 1.0 µA max reverse leakage at VWM supports low-power signal line protection without loading sensitive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before conduction begins; defines safe signal swing margin. |
| VBR min/max | 33.3 V / 36.8 V - Breakdown voltage range at 1 mA test current; ensures reliable turn-on during transients. |
| VC @ IPPM | 48.4 V - Clamped voltage at 10.3 A peak pulse current; limits downstream component stress during ESD/surge events. |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs waveform); determines survivability under standardized surge conditions. |
| TJ range | -55 °C to +150 °C - Operating and storage junction temperature range; supports under-hood automotive deployment. |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; allows indefinite dry pack storage and direct reflow without baking. |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-020 and JESD 22-B102; no polarity marking for bi-directional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient path | Both terminals function identically; connected across protected line and ground (or rail-to-rail) without orientation dependency. |
| Case | Non-electrical mechanical body | Electrically isolated plastic housing; no internal connection to die - no thermal or electrical tie to PCB copper except via soldered leads. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, LIN, sensor bridges) without external polarity management. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing - suitable for front-end electronics in ADAS and body control modules. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients by reducing dynamic impedance - critical for protecting low-voltage logic interfaces (e.g., 3.3 V MCU I/O). |
| Glass passivated junction | Provides stable, repeatable breakdown characteristics over lifetime and temperature, eliminating parameter drift seen in non-passivated silicon devices. |
Applications
| Automotive Sensor Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between sensor output and microcontroller ADC input. Use Value: Limits induced surges to ≤48.4 V, preventing ADC saturation and latch-up in 3.3 V or 5 V signal chains while maintaining <1.0 µA leakage at 30 V bias. | Use Scenario: Shielding RS-485 transceiver I/O pins against ESD and lightning-induced surges in factory automation PLCs. IC Role / Device Role / Timing Role: Bi-directional TVS mounted across differential bus pair (A/B) and ground. Use Value: Clamps ±1 kV ESD (IEC 61000-4-2) and 10/1000 µs surges to safe levels without distorting 10 Mbps data integrity due to low capacitance and symmetrical response. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage protection on 12 V DC output rails of wall adapters subjected to accidental AC mains coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting transient energy from DC output to common ground. Use Value: Withstands repetitive 500 W pulses without degradation; 30 V VWM avoids false triggering during normal 12 V ±10 % regulation, while 48.4 V VC protects downstream regulators. | Use Scenario: Primary-level surge suppression on POTS line interfaces in VoIP gateways exposed to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Bi-directional TVS connected between tip/ring and ground to clamp mode-common transients. Use Value: Handles 10/700 µs telecom surges per ITU-T K.20; AEC-Q101 qualification ensures long-term stability in uncontrolled environmental deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ30CA | Same DO-214AC package, 30 V VWM, 48.4 V VC @ 10.3 A, but rated for 400 W PPPM (vs. 500 W for SMA5J30C-E3/5A). | Lower peak power derating above 25 °C; less margin for high-temperature industrial environments. | Select when cost sensitivity outweighs need for full 500 W surge headroom at elevated ambient temperatures. |
| ON Semiconductor 1.5SMC33CA | DO-214AB (SMC) package (larger footprint), 33 V VWM, 53.3 V VC @ 9.4 A, 1500 W PPPM - higher power but incompatible pinout and layout. | Requires PCB redesign; suited for primary-side AC line protection rather than compact secondary-side signal protection. | Choose only if system-level surge requirements exceed 500 W and board space permits larger SMC package. |
Compared with SMAJ30CA and 1.5SMC33CA, SMA5J30C-E3/5A offers optimal balance of 500 W surge capacity, DO-214AC footprint compatibility, and AEC-Q101 qualification - making it preferred for space-constrained, automotive-grade signal line protection where layout reuse and qualification traceability are mandatory.
Availability
SMA5J30C-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus nodes, and telecom line card designs requiring stable component supply with AEC-Q101 compliance and RoHS assurance.
Supply support for SMA5J30C-E3/5A 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, power density, and automotive qualification.
The SMA5J series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and communications systems where bi-directional clamping and AEC-Q101 validation are required.
FAQ
What does the "C" suffix in SMA5J30C-E3/5A indicate?
The "C" in SMA5J30C-E3/5A denotes bi-directional functionality - meaning the device clamps transients equally in both polarities. Unlike uni-directional variants (e.g., SMA5J30A), SMA5J30C-E3/5A has no cathode band marking and is used where AC signals or differential lines require symmetric overvoltage protection without polarity constraints. This is confirmed in Vishay's datasheet section "Devices for Bi-Direction Applications".
Is SMA5J30C-E3/5A RoHS compliant and lead-free?
Yes, SMA5J30C-E3/5A is RoHS compliant and lead-free. The "E3" suffix explicitly indicates commercial-grade RoHS compliance per Directive 2011/65/EU, with matte tin-plated leads and halogen-free molding compound meeting JEDEC JS709A standards. This is documented in the "Ordering Information" and "Material Categorization" sections of Vishay document 88875.
What is the maximum clamping voltage of SMA5J30C-E3/5A and at what current is it specified?
The maximum clamping voltage (VC) of SMA5J30C-E3/5A is 48.4 V, measured at a peak pulse current (IPPM) of 10.3 A using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SMA5J30C-E3/5A require orientation during PCB placement?
No, SMA5J30C-E3/5A does not require specific orientation during PCB placement. As a bi-directional TVS diode, it has identical electrical behavior at both terminals and carries no polarity marking (unlike uni-directional versions with a cathode band). The DO-214AC package is symmetrical, enabling automated pick-and-place without rotation verification.
What is the thermal resistance specification for SMA5J30C-E3/5A?
SMA5J30C-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in Vishay document 88875. Its junction-to-lead resistance (RθJL) is 25 °C/W - critical for estimating temperature rise under sustained surge duty cycles or elevated ambient conditions.
SMA5J30C-E3/5A 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J30C-E3/5A FAQ
1.How can I place an order for SMA5J30C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30C-E3/5A 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 SMA5J30C-E3/5A reliable?
The price and inventory of SMA5J30C-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J30C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30C-E3/5A?
SMA5J30C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30C-E3/5A 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 SMA5J30C-E3/5A?
For technical support, including SMA5J30C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30C-E3/5A requirements.
6.How does Aetrix verify that SMA5J30C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J30C-E3/5A 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 SMA5J30C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J30C-E3/5A?
All SMA5J30C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30C-E3/5A, 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 SMA5J30C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J30C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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