My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG43AHE3/57T
- Part No.:
- SMCG43AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG43AHE3/57T.pdf
- Description:
- TVS DIODE 43VWM 69.4VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,464
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG43AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMCG (DO-215AB) package, with 43 V stand-off voltage (VWM), 47.8–52.8 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 21.6 A peak pulse current (IPPM). It protects MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the SMCG43AHE3/57T datasheet, SMCG43AHE3/57T pinout, SMCG43AHE3/57T application, or SMCG43AHE3/57T equivalent, this device is selected for AEC-Q101-qualified, high-power transient suppression in space-constrained automotive and industrial PCB layouts where low-profile SMT placement and robust clamping at 69.4 V are required.
Technical Context
This unidirectional TVS diode operates as a clamping device triggered by reverse-biased avalanche breakdown above its 43 V stand-off threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response to 10/1000 µs transients.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to TJ = 150 °C. It meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 43 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 47.8 V / 52.8 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 69.4 V - Clamped voltage during 21.6 A 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - Peak transient energy handling capability under standardized waveform |
| ID @ VWM | ≤1.0 µA - Low leakage preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - Enables use in high-temperature automotive engine compartments |
| RθJA | 75 °C/W - Thermal resistance dictates heatsinking requirements on standard 8 mm × 8 mm copper pads |
Pinout & Package
Package: SMCG (DO-215AB), low-profile surface-mount case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to circuit ground or lower-potential node; conducts during forward surge (e.g., IFSM = 200 A) |
| Cathode | Avalanche clamping terminal | Connected to protected line; enters breakdown when reverse voltage exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift over life and temperature |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without preconditioning |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed automotive and industrial enclosures |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protects 12 V supply rail in ECU against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges above 43 V. Use Value: Limits voltage to ≤69.4 V during 1500 W transients, preventing damage to downstream DC/DC converters and microcontrollers. | Use Scenario: Shields 24 V digital input channels in programmable logic controllers from field-wiring induced spikes. IC Role / Device Role / Timing Role: Standoff-rated protection element on each optocoupler input path. Use Value: Maintains <1.0 µA leakage at 24 V nominal, ensuring clean logic-level detection while surviving 21.6 A surge events. |
| Automotive Cabin Sensor Signal Line | Telecom Base Station DC Power Interface |
Use Scenario: Safeguards LIN bus or analog sensor outputs (e.g., temperature, pressure) in passenger compartment modules. IC Role / Device Role / Timing Role: Point-of-entry clamping device on sensor output trace before connector interface. Use Value: Fast avalanche response prevents latch-up in connected ASICs during ESD or cable discharge events. | Use Scenario: Guards -48 V telecom power feed against lightning-induced surges entering base station cabinets. IC Role / Device Role / Timing Role: Primary unidirectional clamping stage upstream of bulk capacitance and secondary regulation. Use Value: Handles repetitive 10/1000 µs pulses up to 1500 W without degradation, meeting GR-1089-CORE immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/57T | Same VWM (43 V), lower PPPM (400 W), SMA (DO-214AC) package | Lower power handling; suitable for consumer-grade or non-automotive applications | Select when cost or board space is prioritized over automotive qualification and 1500 W surge capacity |
| SMCJ43A-E3/57T | Same VWM (43 V), same PPPM (1500 W), but SMC (DO-214AB) package - larger footprint and higher RθJA | Less thermally efficient (RθJA ≈ 15 °C/W higher); not AEC-Q101 qualified | Choose only if DO-215AB footprint is unavailable and AEC-Q101 compliance is not required |
Compared with SMAJ43A-E3/57T and SMCJ43A-E3/57T, the SMCG43AHE3/57T delivers identical electrical clamping performance in a smaller, AEC-Q101-qualified package with superior thermal resistance (RθJL = 15 °C/W), making it optimal for high-reliability automotive and industrial designs where layout area and junction temperature control are critical.
Availability
SMCG43AHE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom DC power interface applications requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMCG43AHE3/57T 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 protection devices with emphasis on reliability and automotive-grade validation.
The SMCG series is designed specifically for high-power, space-constrained transient suppression in AEC-Q101-compliant automotive and harsh-environment industrial systems.
FAQ
What is the clamping voltage of SMCG43AHE3/57T under maximum surge conditions?
The SMCG43AHE3/57T clamps to 69.4 V when subjected to its rated 21.6 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at the device terminals with the recommended 8.0 mm × 8.0 mm copper pad layout and defines the maximum voltage seen by downstream components during transient events.
Is SMCG43AHE3/57T qualified for automotive applications?
Yes, SMCG43AHE3/57T carries the HE3 suffix, indicating RoHS compliance and full AEC-Q101 qualification. It has passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock, making it suitable for engine control, body electronics, and ADAS sensor modules.
What does the "57T" suffix indicate in SMCG43AHE3/57T?
The "57T" denotes the preferred packaging format: 7-inch diameter plastic tape and reel containing 850 units. This configuration supports automated SMT placement and is specified in Vishay's ordering information table for the SMCG family.
How does the SMCG (DO-215AB) package compare thermally to SMA or SMC packages?
The SMCG (DO-215AB) package offers RθJL = 15 °C/W - significantly lower than SMA (≈30 °C/W) and competitive with SMC - due to its dual-leaded, low-profile construction optimized for heat transfer to PCB copper. This enables higher sustained power dissipation in compact layouts where the SMCG43AHE3/57T is deployed.
Can SMCG43AHE3/57T be used in bidirectional configurations?
No - SMCG43AHE3/57T is unidirectional, as confirmed by its "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" suffix (e.g., SMCG43CA), which lacks polarity marking and exhibits symmetrical breakdown in both directions.
SMCG43AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 21.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG43AHE3/57T FAQ
1.How can I place an order for SMCG43AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG43AHE3/57T 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 SMCG43AHE3/57T reliable?
The price and inventory of SMCG43AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG43AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG43AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG43AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG43AHE3/57T?
SMCG43AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG43AHE3/57T 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 SMCG43AHE3/57T?
For technical support, including SMCG43AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG43AHE3/57T requirements.
6.How does Aetrix verify that SMCG43AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG43AHE3/57T 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 SMCG43AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG43AHE3/57T?
All SMCG43AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG43AHE3/57T, 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 SMCG43AHE3/57T part is unused and in its original packaging.
Return procedure for SMCG43AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG43AHE3/57T 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 …
