My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA5J24-E3/61
- Part No.:
- SMA5J24-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J24-E3/61.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,867
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA5J24-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-214AC (SMA) package, designed for high-energy surge protection on DC power rails and signal lines. It features 24 V standoff voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 38.9 V clamping voltage (VC) at 12.9 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. Used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMA5J24-E3/61 datasheet, SMA5J24-E3/61 pinout, SMA5J24-E3/61 application, or SMA5J24-E3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, AEC-Q101 qualification (via HE3 variant), RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity.
Technical Context
This device operates as a silicon avalanche diode that enters controlled breakdown above its VWM to clamp transient overvoltages. Its glass-passivated junction ensures stable leakage (<1.0 µA at 24 V) and fast response time (<1.0 ns), enabling protection against ESD, inductive switching spikes, and lightning-induced surges.
Thermal design relies on low RθJA (80 °C/W) and RθJL (25 °C/W), requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated 500 W dissipation. The cathode band marking confirms unidirectional polarity, and it is not rated for bidirectional use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - Ensures reliable turn-on margin above VWM under production tolerance |
| VC @ IPPM | 38.9 V at 12.9 A - Clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 500 W - Peak surge power handling capability under standardized waveform |
| IFSM | 40 A - Single half-sine surge current rating (8.3 ms), critical for inductive load switching |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial ambient environments |
| Leakage @ VWM | ≤1.0 µA - Minimizes standby power loss and avoids false triggering in low-current circuits |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode band denotes polarity; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-biased during clamping) | Connected to system ground or lower-potential rail; carries full surge current during transient |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 24 V supply); initiates avalanche conduction when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of VBR and leakage across temperature and life cycles |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| MSL Level 1 (260 °C peak) | Enables standard SMT reflow without preconditioning or baking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin |
| UL 94 V-0 molding compound | Meets flammability safety requirement for enclosed industrial and automotive enclosures |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power supplies and microcontroller power inputs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V rail and chassis ground to clamp surges up to ISO 7637-2 Pulse 5a. Use Value: Limits transient voltage to ≤38.9 V, preventing damage to downstream 3.3 V/5 V regulators and CAN transceivers. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS connected across sensor output and return to absorb induced transients from nearby motor drives or relay coils. Use Value: Maintains signal integrity with <1.0 µA leakage at 24 V, avoiding offset errors in precision current-loop circuits. |
| DC Motor Drive Gate Protection | Telecom Power Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gate drivers in brushed DC motor controllers from inductive kickback. IC Role / Device Role / Timing Role: TVS mounted between gate and source to clamp Miller-induced spikes during switching transitions. Use Value: Fast <1.0 ns response prevents unintended gate oxide breakdown while sustaining 40 A single-pulse surge (8.3 ms). | Use Scenario: Front-end surge suppression on 48 V telecom rectifier outputs feeding PoE midspans or base station backplanes. IC Role / Device Role / Timing Role: Primary unidirectional clamp on DC input before DC-DC converters and hot-swap controllers. Use Value: 500 W rating handles repeated lightning-induced surges per IEC 61000-4-5 Level 4 without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J24AHE3/61 | AEC-Q101 qualified; identical electrical specs; same DO-214AC package and marking | Required for automotive-grade designs needing component-level qualification evidence | Select SMA5J24AHE3/61 when automotive PPAP documentation and stress test reports are mandatory |
| SMC5J24A-E3/57T | DO-214AB (SMC) package; higher thermal mass; RθJA = 35 °C/W; same VWM/VC/PPPM | Better suited for high-power, low-frequency surge events where PCB space allows larger footprint | Choose SMC5J24A-E3/57T when board layout permits larger package and thermal performance exceeds SMA5J24-E3/61 limits |
Compared with SMA5J24AHE3/61, the SMA5J24-E3/61 lacks formal AEC-Q101 certification but shares identical electrical behavior and RoHS compliance; compared with SMC5J24A-E3/57T, it offers smaller footprint and automated placement compatibility at the cost of reduced thermal derating margin.
Availability
SMA5J24-E3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and DC motor drive gate protection requiring stable component supply, consistent lead-time visibility, and traceable sourcing.
Supply support for SMA5J24-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, and transient protection devices with emphasis on reliability, automotive qualification, and high-power density packaging.
The SMA5J series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where robustness and repeatable clamping performance are critical.
FAQ
What is the polarity configuration of SMA5J24-E3/61?
The SMA5J24-E3/61 is a unidirectional transient voltage suppressor diode. Its cathode is marked with a band on the DO-214AC (SMA) package body. During normal operation, the cathode connects to the protected line (e.g., +24 V), and the anode connects to ground. This configuration allows forward conduction only during negative transients, while clamping positive surges via reverse avalanche breakdown. Bidirectional operation is not supported.
Does SMA5J24-E3/61 meet automotive qualification standards?
The SMA5J24-E3/61 is RoHS-compliant and manufactured to commercial-grade specifications. For automotive applications requiring formal qualification, Vishay offers the SMA5J24AHE3/61 variant, which is AEC-Q101 qualified. SMA5J24-E3/61 itself does not carry AEC-Q101 certification, though its construction and thermal ratings align with many non-safety-critical automotive subsystems when validated per customer requirements.
What is the maximum clamping voltage of SMA5J24-E3/61 under surge conditions?
The SMA5J24-E3/61 has a maximum clamping voltage (VC) of 38.9 V at 12.9 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value represents the upper limit of voltage imposed on the protected circuit during a worst-case surge event and is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per terminal, as specified in the Vishay datasheet.
Can SMA5J24-E3/61 be used in bidirectional signal line protection?
No, SMA5J24-E3/61 is strictly unidirectional and must not be used for bidirectional signal line protection. Bidirectional operation requires CA-suffixed variants such as SMA5J24CA. Using SMA5J24-E3/61 on AC-coupled or differential lines risks failure during negative excursions, as it conducts freely in forward bias and provides no clamping in that direction. Always verify suffix and polarity marking before layout integration.
What is the moisture sensitivity level (MSL) rating for SMA5J24-E3/61?
The SMA5J24-E3/61 is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means the device can be exposed to ambient conditions indefinitely without dry-pack requirements and is compatible with standard lead-free reflow profiles. No baking or floor-life tracking is needed prior to assembly, simplifying manufacturing logistics for high-volume SMT lines.
SMA5J24-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 11.6A
- 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)
SMA5J24-E3/61 FAQ
1.How can I place an order for SMA5J24-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J24-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 SMA5J24-E3/61 reliable?
The price and inventory of SMA5J24-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 SMA5J24-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J24-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J24-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J24-E3/61?
SMA5J24-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J24-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 SMA5J24-E3/61?
For technical support, including SMA5J24-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J24-E3/61 requirements.
6.How does Aetrix verify that SMA5J24-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J24-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 SMA5J24-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J24-E3/61?
All SMA5J24-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J24-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 SMA5J24-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J24-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J24-E3/61 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
