My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J30AHE3_A/H
- Part No.:
- SMA5J30AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J30AHE3_A/H.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,812
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J30AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection with 30 V standoff voltage (VWM), 33.3–36.8 V breakdown (VBR), 48.4 V clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM). It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMA5J30AHE3_A/H datasheet, SMA5J30AHE3_A/H pinout, SMA5J30AHE3_A/H application, or SMA5J30AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 µs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and low incremental surge resistance. Its 10/1000 µs waveform response delivers consistent clamping across temperature (–55 °C to +150 °C) with derating above 25 °C per Fig. 2.
The SMA5J30AHE3_A/H is rated for 40 A non-repetitive forward surge current (IFSM) and exhibits 1.0 µA maximum reverse leakage at VWM - critical for low-power sensor interface protection. Its MSL Level 1 rating and matte tin-plated leads ensure robust solderability per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 33.3 V / 36.8 V - guaranteed avalanche initiation range at 1 mA test current |
| VC @ IPPM | 48.4 V - clamped voltage during 10.3 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 500 W - peak transient energy absorption capability under standardized waveform |
| RθJA | 80 °C/W - thermal resistance from junction to ambient, defining power derating on standard PCB pads |
| IFSM | 40 A - single half-sine surge current handling (8.3 ms), supporting inductive load switching events |
| ID @ VWM | 1.0 µA - ultra-low leakage ensures minimal standby current draw in battery-powered systems |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads and cathode band marking. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail in unidirectional clamp configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line; conducts during overvoltage to shunt surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| AEC-Q101 qualified | Validated for automotive-grade operation including temperature cycling, HTRB, and ESD testing |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (< 1 ns response time) |
| MSL Level 1, 260 °C peak reflow | Enables compatibility with standard lead-free SMT assembly without moisture sensitivity concerns |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between supply rail and chassis ground. Use Value: Limits transient voltage to ≤48.4 V, preventing damage to 36 V-rated DC-DC converters and microcontrollers. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Point-of-entry protection on 4–20 mA or 0–5 V signal paths. Use Value: Sub-µA leakage preserves signal integrity; 48.4 V clamping prevents op-amp input stage breakdown. |
| Consumer Power Adapter Input Stage | Telecom Equipment Surge Interface |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier outputs from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-side transient suppressor after bridge rectifier, before bulk capacitor. Use Value: 500 W PPPM rating absorbs IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation. | Use Scenario: Front-end protection on Ethernet PHY power and data lines in base station remote units. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 3.3 V/5 V bias rails feeding RF front-end ICs. Use Value: 1.0 µA leakage avoids loading low-current bias networks; AEC-Q101 qualification supports extended field life. |
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 | Commercial-grade (non-AEC-Q101), same electrical specs and SMA package | Lacks automotive qualification; not suitable for under-hood or safety-critical modules | Select when cost-sensitive industrial or consumer designs do not require automotive reliability validation |
| SMCJ30AHE3_A/H | Same AEC-Q101 qualification but in larger SMC (DO-214AB) package with 600 W PPPM rating | Higher surge capacity and lower RθJA (40 °C/W); requires larger PCB footprint | Choose for higher-energy threats (e.g., ISO 7637-2 Pulse 5a) where space permits |
Compared with SMA5J30A-E3/61, the SMA5J30AHE3_A/H adds automotive qualification without electrical trade-offs; versus SMCJ30AHE3_A/H, it trades 100 W surge margin and 40 °C/W thermal advantage for 30 % smaller board area and identical AEC-Q101 compliance.
Availability
SMA5J30AHE3_A/H is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, consumer adapter inputs, and telecom equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J30AHE3_A/H 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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT designs, targeting automotive, industrial, and communications systems where AEC-Q101 compliance and robust surge immunity are mandatory.
FAQ
What is the clamping voltage of the SMA5J30AHE3_A/H under a 10/1000 µs surge?
The SMA5J30AHE3_A/H has a maximum clamping voltage (VC) of 48.4 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J30AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is the SMA5J30AHE3_A/H qualified for automotive applications?
Yes, the SMA5J30AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88875. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making the SMA5J30AHE3_A/H suitable for under-hood and body-control module applications where reliability under harsh conditions is required.
What is the thermal resistance of the SMA5J30AHE3_A/H, and how does it affect layout?
The SMA5J30AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. This value means each watt of dissipated surge energy raises the junction temperature by 80 °C above ambient - so layout must provide adequate copper area and avoid thermal bottlenecks to prevent exceeding the 150 °C max junction temperature during repetitive events.
Does the SMA5J30AHE3_A/H have polarity marking, and how is it identified?
Yes, the SMA5J30AHE3_A/H is unidirectional and features a visible cathode band on the SMA (DO-214AC) package body. This band identifies the cathode terminal, which must be connected to the line being protected, while the anode connects to ground or the lower-potential reference. No marking appears on bidirectional variants, but the SMA5J30AHE3_A/H explicitly uses the "A" suffix denoting unidirectional construction.
What is the maximum reverse leakage current of the SMA5J30AHE3_A/H at its standoff voltage?
The SMA5J30AHE3_A/H specifies a maximum reverse leakage current (ID) of 1.0 µA at its 30 V standoff voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal power loss in always-on circuits and preserves accuracy in high-impedance sensor interfaces - a critical parameter for battery-operated and precision analog systems using the SMA5J30AHE3_A/H.
SMA5J30AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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_A/H FAQ
1.How can I place an order for SMA5J30AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J30AHE3_A/H 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_A/H reliable?
The price and inventory of SMA5J30AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J30AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMA5J30AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J30AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J30AHE3_A/H?
SMA5J30AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J30AHE3_A/H 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_A/H?
For technical support, including SMA5J30AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J30AHE3_A/H requirements.
6.How does Aetrix verify that SMA5J30AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMA5J30AHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SMA5J30AHE3_A/H?
All SMA5J30AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J30AHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SMA5J30AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J30AHE3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
