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Vishay General Semiconductor - Diodes Division SMA5J30AHE3/61
- Part No.:
- SMA5J30AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30AHE3/61.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,584
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Product details
Overview
SMA5J30AHE3/61 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 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 48.4 V clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive ECUs, industrial sensor interfaces, and DC power rails.
For engineers reviewing the SMA5J30AHE3/61 datasheet, SMA5J30AHE3/61 pinout, SMA5J30AHE3/61 application, or SMA5J30AHE3/61 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 150 °C max junction temperature, 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 crowbar device triggered by transient overvoltage events exceeding its VBR threshold. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ps), enabling protection of downstream MOSFETs and ICs against inductive switching spikes and ESD.
The device delivers 500 W peak pulse power handling under standardized 10/1000 μs waveform conditions, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). Its unidirectional configuration supports forward-biased operation only, with cathode band marking and no reverse conduction capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 33.3 V / 36.8 V at 1 mA - guaranteed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 48.4 V at 10.3 A - clamped voltage during 500 W surge, limiting stress on protected circuitry |
| PPPM | 500 W - peak transient energy absorption capacity per 10/1000 μs waveform |
| TJ max | +150 °C - maximum allowable junction temperature supporting under-hood automotive use |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; safe for standard reflow without baking |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side (e.g., ground or return path) in protection configuration |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., 30 V rail); conducts surge current toward ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable reverse leakage (<1.0 μA) and long-term parameter consistency across temperature and humidity |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision for sensitive ICs |
| MSL Level 1 rating | Enables direct placement into reflow process without dry-pack or baking, reducing manufacturing overhead |
| 500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity in properly designed PCB layouts |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed microcontroller power inputs in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and chassis ground. Use Value: Limits transient voltage to ≤48.4 V during 500 W surges, preventing MCU brownout or latch-up while maintaining AEC-Q101 compliance. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted at connector entry point before signal conditioning stage. Use Value: Clamps induced lightning or EFT pulses to <48.4 V within nanoseconds, preserving ADC accuracy and avoiding system reset. |
| DC-DC Converter Input Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Shielding input stage of isolated 30 V input buck converters used in PoE-powered edge devices. IC Role / Device Role / Timing Role: Primary overvoltage clamp on HV input rail upstream of primary-side controller. Use Value: Absorbs repetitive 10/1000 μs surges up to 500 W without degradation, ensuring converter uptime in harsh electrical environments. |
Use Scenario: Front-end protection for 48 V telecom rectifier outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Unidirectional TVS installed between rectified DC bus and ground plane. Use Value: Withstands repeated 48 V-rated surges per IEC 61000-4-5, maintaining system availability during grid-induced transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30A-E3/61 | No AEC-Q101 qualification; commercial grade only; identical electrical specs and package | Restricted to non-automotive industrial or consumer use where automotive reliability not required | Select when cost sensitivity outweighs automotive qualification needs and full traceability is not mandated |
| SMCJ30AHE3/61 | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VWM/VBR/VC ratings | Used where higher surge margin is needed and PCB space allows larger footprint | Choose when system-level surge testing exceeds 500 W requirements or layout permits SMC package |
Compared with SMA5J30AHE3/61, the SMA5J30A-E3/61 offers identical clamping performance but lacks automotive qualification, while the SMCJ30AHE3/61 provides triple the surge power rating in a physically larger package - enabling design flexibility between cost, qualification, and robustness tiers.
Availability
SMA5J30AHE3/61 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and DC-DC converter input protection requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for SMA5J30AHE3/61 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 application-specific qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained automotive and industrial applications, combining AEC-Q101 validation with industry-standard DO-214AC packaging and robust surge handling.
FAQ
What is the clamping voltage of the SMA5J30AHE3/61 under maximum rated surge current?
The SMA5J30AHE3/61 has a maximum clamping voltage (VC) of 48.4 V when subjected to its rated peak pulse current (IPPM) of 10.3 A using the 10/1000 μs waveform. This value is measured at the device terminals under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a full-rated transient event. The SMA5J30AHE3/61 maintains this clamping performance across its qualified operating temperature range.
Is SMA5J30AHE3/61 suitable for bidirectional transient protection?
No, SMA5J30AHE3/61 is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical characteristics - including breakdown and clamping behavior - apply only in reverse bias (cathode positive). For bidirectional protection, Vishay specifies parts with "CA" suffix (e.g., SMA5J30CA). Using SMA5J30AHE3/61 in bidirectional configurations may result in forward conduction damage or inadequate protection.
Does SMA5J30AHE3/61 require derating at elevated ambient temperatures?
Yes, SMA5J30AHE3/61 must be derated above TA = 25 °C per Figure 2 in the datasheet. Its peak pulse power (PPPM) decreases linearly with rising junction temperature, reaching ~50 % of rated 500 W at TJ ≈ 100 °C. Designers must calculate actual junction temperature using RθJA = 80 °C/W and ensure TJ remains ≤150 °C under worst-case surge and ambient conditions.
What does the "HE3" suffix indicate in SMA5J30AHE3/61?
"HE3" denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. It distinguishes SMA5J30AHE3/61 from commercial-grade variants (e.g., "E3") and halogen-free versions ("HM3"). The "/61" indicates 7-inch tape-and-reel packaging with 1800 units per reel - a standard logistics code for SMT assembly lines.
Can SMA5J30AHE3/61 be used in place of SMAJ30AHE3?
No - SMA5J30AHE3/61 and SMAJ30AHE3 belong to different product families with distinct surge ratings: SMA5J30AHE3/61 is rated for 500 W PPPM, whereas SMAJ30AHE3 is rated for 400 W. Their VWM, VBR, and VC values differ slightly, and their thermal resistances are not interchangeable. Substitution requires verification of surge margin, layout thermal performance, and qualification alignment - SMA5J30AHE3/61 is not a drop-in replacement for SMAJ30AHE3.
SMA5J30AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMA5J30AHE3/61 FAQ
1.How can I place an order for SMA5J30AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30AHE3/61 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 SMA5J30AHE3/61 reliable?
The price and inventory of SMA5J30AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J30AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30AHE3/61?
SMA5J30AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30AHE3/61 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 SMA5J30AHE3/61?
For technical support, including SMA5J30AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30AHE3/61 requirements.
6.How does Aetrix verify that SMA5J30AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J30AHE3/61 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 SMA5J30AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J30AHE3/61?
All SMA5J30AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30AHE3/61, 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 SMA5J30AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J30AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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