My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG24AHE3/5B
- Part No.:
- SMBG24AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24AHE3/5B.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,067
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG24AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR at 1 mA), 38.9 V maximum clamping voltage (VC) at 15.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SMBG24AHE3/5B datasheet, SMBG24AHE3/5B pinout, SMBG24AHE3/5B application, or SMBG24AHE3/5B equivalent, key selection criteria include clamping performance under 15.4 A surge, AEC-Q101 qualification for automotive use, RoHS compliance with matte tin leads, and thermal resistance (RθJA = 100 °C/W) on standard 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device that remains high-impedance below 24 V and rapidly transitions to low-impedance conduction above its 26.7–29.5 V breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting MOSFET gates and microcontroller I/O pins from ESD and inductive switching transients.
The SMBG24AHE3/5B is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), junction temperature range of –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its cathode-band polarity marking and DO-215AA mechanical outline enable automated placement and reliable solder joint formation per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 38.9 V at 15.4 A - Clamped voltage during 600 W 10/1000 µs surge; limits stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability; supports repetitive 0.01% duty cycle surges. |
| IFSM | 100 A - Single 8.3 ms half-sine surge rating; protects against motor driver or relay coil energy release. |
| Junction Temp | –55 °C to +150 °C - Wide operational envelope suitable for under-hood automotive and industrial environments. |
| Leakage @ VWM | <1.0 µA - Minimal standby current draw; avoids signal integrity degradation on high-impedance nodes. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile gull-wing lead frame with 0.235–0.255 inch body length, 0.130–0.155 inch width, and 0.075–0.095 inch height; meets UL 94 V-0 flammability rating and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or common return path; forms shunt path during overvoltage events. |
| Cathode | High-side protected node terminal | Connected to signal/power line being protected; marked by visible band on package body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test conditions. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime, critical for long-term field operation. |
| 600 W peak pulse power (10/1000 µs) | Provides robust immunity against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events in 12 V systems. |
| Matte tin plated leads | Guarantees solderability per J-STD-002 and JESD22-B102; compatible with lead-free reflow profiles up to 260 °C. |
| MSL Level 1 rating | Enables unlimited floor life and single-reflow assembly without dry-pack requirements or baking. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between signal line and chassis ground, responding within nanoseconds to limit voltage excursion. Use Value: Clamps transients to ≤38.9 V while absorbing 600 W pulses, preserving signal integrity and preventing latch-up in 5 V/3.3 V interface ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to 24 V DC field wiring surges and relay contact bounce. IC Role / Device Role / Timing Role: Unidirectional suppression element on each input channel, referenced to common ground with defined VWM margin. Use Value: Maintains <1.0 µA leakage at 24 V nominal supply, enabling accurate voltage-level detection while surviving repeated 100 A surge events. |
| Motor Drive Gate Protection | Power Supply Input Protection |
Use Scenario: Shielding high-side and low-side MOSFET gate drivers in BLDC inverters from Miller-induced spikes and shoot-through transients. IC Role / Device Role / Timing Role: Fast-turn-on TVS connected between gate and source terminals to clamp dv/dt-induced overshoot. Use Value: Sub-1 ns response time and 26.7–29.5 V VBR ensure clamping occurs before gate oxide breakdown in 30 V-rated FETs. | Use Scenario: Front-end surge suppression on 24 V DC power inputs of embedded controllers subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary shunt protector upstream of DC-DC converters and LDOs, sized for 600 W peak dissipation. Use Value: 38.9 V clamping voltage prevents overvoltage damage to 24 V-rated regulators and maintains system uptime during transient events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-E3/5B | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package (SMB vs. SMBG); RθJA = 110 °C/W vs. 100 °C/W. | Less thermal margin on dense PCBs; identical clamping performance for most 24 V signal lines. | Select SMBJ24A-E3/5B only if legacy SMB footprint is required; SMBG24AHE3/5B offers superior thermal performance. |
| SMCJ24AHE3/5B | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, same VWM/VBR/VC; RθJA = 40 °C/W. | Used where higher surge endurance or lower thermal resistance is mandatory, e.g., main power rail protection. | Choose SMCJ24AHE3/5B when system-level surge tests exceed 600 W; SMBG24AHE3/5B fits space-constrained layouts. |
Compared with SMBJ24A-E3/5B, SMBG24AHE3/5B delivers lower thermal resistance for equivalent surge ratings; versus SMCJ24AHE3/5B, it trades 900 W peak power headroom for 40% smaller board area and compatibility with fine-pitch automated placement.
Availability
SMBG24AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, motor drive gate circuits, and 24 V DC power supply inputs requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBG24AHE3/5B 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 SMBG series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems - delivering AEC-Q101-qualified, low-leakage, fast-response TVS diodes in compact surface-mount packages.
FAQ
What is the clamping voltage of SMBG24AHE3/5B at its rated peak pulse current?
The SMBG24AHE3/5B has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG24AHE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG24AHE3/5B qualified for automotive applications?
Yes, SMBG24AHE3/5B is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature reverse bias, temperature cycling, and ESD robustness required for automotive electronic components. Its HE3 suffix explicitly denotes AEC-Q101 qualification, and it is routinely deployed in engine control units, body control modules, and ADAS sensor interfaces where reliability under harsh conditions is mandatory.
What does the "HE3/5B" suffix indicate in SMBG24AHE3/5B?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification, while "5B" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3200 units. This format supports high-volume automated pick-and-place assembly. The SMBG24AHE3/5B is not halogen-free (that would require HM3 suffix) but meets all applicable environmental and automotive reliability standards.
How does SMBG24AHE3/5B compare to bidirectional TVS diodes like SMBG24CA?
The SMBG24AHE3/5B is unidirectional and intended for DC-biased lines where polarity is fixed, offering lower leakage (<1.0 µA) and no symmetrical breakdown behavior. In contrast, SMBG24CA is bidirectional with identical VWM and VBR in both directions, suited for AC or floating signal paths. The SMBG24AHE3/5B cannot replace SMBG24CA in AC-coupled applications due to its inherent polarity dependence and asymmetric conduction.
What is the thermal resistance of SMBG24AHE3/5B, and how does it affect layout design?
The SMBG24AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet; reducing pad size increases thermal impedance and may derate surge capability. For sustained surge duty cycles, designers should verify junction temperature rise using this RθJA and actual power dissipation in the SMBG24AHE3/5B.
SMBG24AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 15.4A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG24AHE3/5B FAQ
1.How can I place an order for SMBG24AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24AHE3/5B 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 SMBG24AHE3/5B reliable?
The price and inventory of SMBG24AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG24AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24AHE3/5B?
SMBG24AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24AHE3/5B 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 SMBG24AHE3/5B?
For technical support, including SMBG24AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24AHE3/5B requirements.
6.How does Aetrix verify that SMBG24AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG24AHE3/5B 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 SMBG24AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG24AHE3/5B?
All SMBG24AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24AHE3/5B, 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 SMBG24AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG24AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24AHE3/5B 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 …
