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Vishay General Semiconductor - Diodes Division SMA5J30CHE3/5A
- Part No.:
- SMA5J30CHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30CHE3/5A.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,922
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Product details
Overview
SMA5J30CHE3/5A 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 rails and signal lines. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown voltage (VBR), 48.4 V clamping voltage (VC) at 10.3 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used in automotive power supply input stages to protect downstream MOSFETs and microcontrollers.
For engineers reviewing the SMA5J30CHE3/5A datasheet, SMA5J30CHE3/5A pinout, SMA5J30CHE3/5A application, or SMA5J30CHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin plating, 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), but triggers into low-impedance conduction when transient voltage exceeds its 33.3 V minimum breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
The device delivers 500 W peak pulse power handling per 10/1000 µs waveform with 48.4 V clamping at 10.3 A, and exhibits low incremental surge resistance enabling effective energy diversion without excessive voltage overshoot. Thermal resistance is 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead), supporting robust thermal performance in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on timing. |
| VC @ IPPM | 48.4 V at 10.3 A - Clamped voltage during 500 W surge; determines maximum stress on protected ICs. |
| PPPM | 500 W - Peak pulse power dissipation capability with 10/1000 µs waveform; defines surge energy handling. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-214AC (SMA) - Surface-mount package with 5.28 mm length, 4.50 mm width, and 2.29 mm height; compatible with standard reflow profiles. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two axial leads; cathode identified by a band at one end. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes shunt path during overvoltage events. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 30 V rail); reverse-biased during normal operation; conducts when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-214AC package | Enables placement in space-constrained automotive ECUs and industrial controllers without height interference. |
| Glass-passivated chip junction | Ensures stable electrical parameters across temperature and lifetime, critical for mission-critical protection circuits. |
| 500 W peak pulse power rating | Handles ISO 7637-2 Pulse 1, 2a, 3a/b surges and IEC 61000-4-5 Level 3 transients without degradation. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, body electronics, and ADAS power domains. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow assembly without moisture-induced damage; no bake-out required prior to SMT. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 30 V battery-fed microcontroller power inputs in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS that clamps transients above 33.3 V while remaining high-impedance below 30 V. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤48.4 V during 10.3 A surges, preventing latch-up or permanent damage. | Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring noise. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp placed between field input and optocoupler input stage. Use Value: Maintains signal integrity by suppressing >1 kV transients to <48.4 V within nanoseconds, preserving input logic thresholds. |
| DC Motor Drive Gate Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Shielding N-channel MOSFET gate drivers in brushed DC motor controllers from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) unidirectional TVS placed between gate and source to clamp negative spikes. Use Value: Prevents gate oxide rupture by limiting negative excursions to ≤30 V reverse standoff and clamping positive overshoot to ≤48.4 V. | Use Scenario: Front-end protection of 48 V telecom rectifier outputs against lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Primary-level TVS in series with MOVs and filters to absorb fast-rising common-mode transients. Use Value: Provides precise 30 V clamping threshold and 500 W energy absorption, reducing reliance on bulkier secondary-stage components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J30AHE3/5A | Same electrical specs and AEC-Q101 qualification; differs only in packaging suffix (HE3 denotes AEC-Q101 grade, E3 is commercial grade). | No functional difference; both rated for automotive use. | Select SMA5J30CHE3/5A when full traceability to AEC-Q101 qualified lots is required per OEM sourcing policy. |
| SMCJ30AHE3/5A | Higher 1500 W PPPM, same VWM/VC, but in larger DO-214AB (SMC) package (7.11 mm × 6.22 mm). | Better suited for higher-energy threats (e.g., ISO 7637-2 Pulse 5a), but requires PCB area increase. | Choose SMCJ30AHE3/5A only if system-level testing confirms need for >500 W surge capacity and layout allows larger footprint. |
Compared with SMA5J30AHE3/5A, SMA5J30CHE3/5A offers identical protection performance with guaranteed AEC-Q101 compliance documentation; versus SMCJ30AHE3/5A, it trades 1500 W capability for 40% smaller board area and lower thermal mass - optimal for cost- and space-sensitive automotive modules.
Availability
SMA5J30CHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMA5J30CHE3/5A 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA5J series is engineered for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where compact size, AEC-Q101 validation, and repeatable clamping behavior are mandatory.
FAQ
What is the polarity configuration of the SMA5J30CHE3/5A?
The SMA5J30CHE3/5A is a unidirectional transient voltage suppressor diode. Its cathode is marked by a band on the DO-214AC (SMA) package body. During normal operation, it blocks current flow in reverse bias up to 30 V (VWM); it conducts only when the anode-to-cathode voltage exceeds the 33.3–36.8 V breakdown range. This polarity makes SMA5J30CHE3/5A suitable for DC rail protection where directionality matters.
Does the SMA5J30CHE3/5A meet automotive qualification standards?
Yes, the SMA5J30CHE3/5A is AEC-Q101 qualified, as confirmed in Vishay's official datasheet (Document Number: 88875, Revision: 24-Oct-12). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and electrostatic discharge - validating its suitability for automotive powertrain, chassis, and body electronics applications where reliability under thermal and mechanical stress is critical. The HE3 suffix explicitly denotes AEC-Q101 compliance.
What is the maximum clamping voltage of the SMA5J30CHE3/5A under surge conditions?
The SMA5J30CHE3/5A has a maximum clamping voltage (VC) of 48.4 V at 10.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. It ensures downstream components like 3.3 V or 5 V logic ICs remain within safe operating margins when the SMA5J30CHE3/5A diverts surge energy.
How does the SMA5J30CHE3/5A differ from the SMA5J30A-E3/5A variant?
The SMA5J30CHE3/5A and SMA5J30A-E3/5A share identical electrical specifications (VWM = 30 V, VBR = 33.3–36.8 V, VC = 48.4 V), but differ in qualification grade: SMA5J30CHE3/5A carries the HE3 suffix indicating AEC-Q101 qualification and traceable lot documentation, whereas SMA5J30A-E3/5A (E3 suffix) is commercial-grade. Both are RoHS-compliant and use matte tin-plated leads, but only SMA5J30CHE3/5A meets automotive OEM sourcing requirements.
What PCB pad layout is recommended for optimal thermal performance of the SMA5J30CHE3/5A?
Vishay specifies mounting the SMA5J30CHE3/5A on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W peak pulse power and maintain thermal resistance at 80 °C/W (junction-to-ambient). Smaller pads reduce heat dissipation and derate surge capability. The DO-214AC outline drawing (page 4 of datasheet 88875) defines exact land pattern dimensions, including 1.88 mm pad width and 5.28 mm overall length alignment.
SMA5J30CHE3/5A 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J30CHE3/5A FAQ
1.How can I place an order for SMA5J30CHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30CHE3/5A 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 SMA5J30CHE3/5A reliable?
The price and inventory of SMA5J30CHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30CHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J30CHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30CHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30CHE3/5A?
SMA5J30CHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30CHE3/5A 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 SMA5J30CHE3/5A?
For technical support, including SMA5J30CHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30CHE3/5A requirements.
6.How does Aetrix verify that SMA5J30CHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J30CHE3/5A 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 SMA5J30CHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J30CHE3/5A?
All SMA5J30CHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30CHE3/5A, 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 SMA5J30CHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J30CHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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