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Vishay General Semiconductor - Diodes Division SMA5J30-E3/61
- Part No.:
- SMA5J30-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30-E3/61.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,777
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Product details
Overview
SMA5J30-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power lines and signal paths. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown range (VBR), 48.4 V clamping voltage at 10.3 A peak pulse current (IPPM), and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J30-E3/61 datasheet, SMA5J30-E3/61 pinout, SMA5J30-E3/61 application, or SMA5J30-E3/61 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, 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: under normal conditions it presents high impedance (>1 µA leakage at 30 V), then rapidly avalanches below 37 V to clamp transients. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, enabling consistent clamping performance across repeated 10/1000 µs surges up to 500 W.
Thermal design relies on low RθJA (80 °C/W typical) and RθJL (25 °C/W), supported by DO-214AC's lead-frame construction and solderable matte tin terminals meeting J-STD-002 and JESD 22-B102. The E3 suffix confirms JESD 201 Class 1A whisker resistance and commercial-grade RoHS compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected circuit DC rail. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance. |
| VC @ IPPM | 48.4 V - Clamped voltage during 10.3 A 10/1000 µs surge; determines maximum stress on downstream components. |
| PPPM | 500 W - Peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges. |
| IFSM | 40 A - Non-repetitive 8.3 ms forward surge rating; supports inrush current immunity in power supply inputs. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments. |
| Package | DO-214AC (SMA) - Surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height; optimized for automated placement. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two coplanar leads, cathode indicated by a band on one end. Terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102, and meet UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to lower-potential side of protected line; conducts only during positive transients relative to cathode. |
| Cathode (banded end) | Reverse-biased reference terminal | Connected to higher-potential side (e.g., VCC); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under thermal cycling and humidity. |
| AEC-Q101 qualified (E3 suffix variant is commercial; HE3 is AEC-Q101) | SMA5J30-E3/61 is RoHS-compliant commercial grade; for automotive use, SMA5J30HE3/61 is the AEC-Q101 qualified version. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision for sensitive 3.3 V/5 V logic. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow without moisture-induced popcorn failure or delamination. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND to clamp transients above 30 V. Use Value: Limits peak voltage to ≤48.4 V during 10/1000 µs surges, preventing damage to MCU power pins and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD and inductive switching noise on 0–5 V signal lines. Use Value: Sub-1 ns response time and <1 µA leakage at 30 V preserve signal integrity while blocking >5 kV HBM ESD events. |
| DC-DC Converter Input Protection | Consumer Power Adapter Output Clamping |
Use Scenario: Front-end surge suppression for 24 V input to isolated buck converters in PoE-powered equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp on primary-side DC bus before input filter capacitor. Use Value: 500 W pulse rating handles repetitive surges from upstream switching noise without degradation. | Use Scenario: Secondary-side transient suppression on 5 V/9 V USB-C adapter outputs. IC Role / Device Role / Timing Role: Unidirectional TVS between output rail and ground to prevent overvoltage damage to connected devices. Use Value: 30 V VWM avoids false triggering during normal 5–9 V regulation, while clamping to 48.4 V during lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30AHE3/61 | AEC-Q101 qualified; identical electrical specs but enhanced process validation for automotive temperature cycling and humidity testing. | Required for under-hood or safety-critical automotive modules; not needed for commercial power supplies. | Select SMA5J30AHE3/61 when automotive qualification is mandated; SMA5J30-E3/61 suffices for industrial/commercial designs. |
| SMC5J30A-E3/73 | Larger DO-214AB (SMC) package; same VWM/VBR/VC, but higher 600 W PPPM and 12.3 A IPPM. | Used where board space permits larger footprint and higher surge margin is required (e.g., telecom base station power inputs). | Choose SMC5J30A-E3/73 only if 600 W rating is needed; SMA5J30-E3/61 offers optimal power density for space-constrained layouts. |
Compared with SMA5J30AHE3/61, the SMA5J30-E3/61 lacks AEC-Q101 certification but matches all electrical parameters and packaging - making it ideal for cost-sensitive commercial designs. Versus SMC5J30A-E3/73, it trades 100 W pulse power for 30% smaller PCB area, prioritizing compactness over extreme surge headroom.
Availability
SMA5J30-E3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and DC-DC converter input protection requiring stable component supply and full traceability.
Supply support for SMA5J30-E3/61 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, power density, and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and consumer electronics where robust 500 W surge handling and automated assembly compatibility are essential.
FAQ
What is the polarity configuration of the SMA5J30-E3/61?
The SMA5J30-E3/61 is a unidirectional TVS diode, meaning it conducts only in the reverse direction (cathode to anode) when voltage exceeds its breakdown threshold. The banded end denotes the cathode terminal, and no marking appears on bi-directional variants. This polarity enables precise clamping on positive-going transients in DC power rails, unlike bi-directional types that protect AC or dual-polarity signals.
Does the SMA5J30-E3/61 meet automotive qualification standards?
No - the SMA5J30-E3/61 carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, the correct part is SMA5J30AHE3/61, which undergoes additional stress testing for temperature cycling, humidity resistance, and mechanical shock. Engineers must specify the HE3 variant explicitly when designing for automotive under-hood or safety-critical applications.
What is the maximum clamping voltage of the SMA5J30-E3/61 during a surge event?
The SMA5J30-E3/61 clamps to a maximum of 48.4 V when subjected to its rated 10.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at the device terminals and represents the highest voltage downstream components will experience during a worst-case surge, ensuring compatibility with 36 V-rated ICs and MOSFETs in protected circuits.
How does the DO-214AC (SMA) package of the SMA5J30-E3/61 support automated manufacturing?
The DO-214AC (SMA) package of the SMA5J30-E3/61 features coplanar leads, standardized 5.28 mm × 4.50 mm outline, and matte tin plating compliant with J-STD-002 solderability requirements. Its MSL Level 1 rating allows exposure to ambient conditions prior to reflow, and the 7" tape-and-reel delivery (61 code) is compatible with high-speed pick-and-place machines - enabling reliable, high-yield SMT assembly without special handling.
What thermal derating applies to the SMA5J30-E3/61 above 25 °C ambient?
The SMA5J30-E3/61 follows Vishay's standard derating curve: peak pulse power (PPPM) decreases linearly above 25 °C ambient, reaching ~50% of 500 W at +125 °C junction temperature. Derating is governed by thermal resistance values RθJA = 80 °C/W and RθJL = 25 °C/W, so effective power handling depends on PCB copper pad area (minimum 5.0 mm × 5.0 mm per terminal) and airflow - critical for sustained surge duty cycles in enclosed enclosures.
SMA5J30-E3/61 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):
- 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)
SMA5J30-E3/61 FAQ
1.How can I place an order for SMA5J30-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30-E3/61 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 SMA5J30-E3/61 reliable?
The price and inventory of SMA5J30-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J30-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30-E3/61?
SMA5J30-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30-E3/61 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 SMA5J30-E3/61?
For technical support, including SMA5J30-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30-E3/61 requirements.
6.How does Aetrix verify that SMA5J30-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J30-E3/61 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 SMA5J30-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J30-E3/61?
All SMA5J30-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30-E3/61, 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 SMA5J30-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J30-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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