My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG90AHE3/52
- Part No.:
- SMBG90AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90AHE3/52.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,128
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG90AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, rated for 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It delivers 4.1 A maximum reverse leakage at VWM, clamps transients to ≤146 V at 4.1 A peak pulse current (IPPM), and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SMBG90AHE3/52 datasheet, SMBG90AHE3/52 pinout, SMBG90AHE3/52 application, or SMBG90AHE3/52 equivalent, this device is selected for robust overvoltage protection in DC power rails, sensor interfaces, and MOSFET gate drivers where fast response (<1 ns), low clamping ratio, and high surge reliability under repetitive transients are required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (100–111 V), it avalanches into low-impedance conduction, diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage across -55 °C to +150 °C operating range.
Designed for 10/1000 μs waveform compliance, SMBG90AHE3/52 sustains 600 W peak pulse power with 0.01% duty cycle and handles 100 A non-repetitive forward surge (8.3 ms half-sine), making it suitable for inductive load switching and ESD-laden environments without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse working voltage before clamping begins; defines safe DC operating margin. |
| VBR (min/max) | 100 V / 111 V - Breakdown initiates within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | ≤146 V - Clamped voltage at 4.1 A peak pulse current; determines maximum stress on protected IC or MOSFET. |
| IPPM | 4.1 A - Peak surge current capability under 10/1000 μs waveform; directly supports IEC 61000-4-5 Level 3 immunity. |
| PPPM | 600 W - Peak pulse power dissipation; enables handling of high-energy transients without failure. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive or industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode (unbanded end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current loop. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and inductive kickback in 12 V/24 V automotive systems. |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring long-term field reliability. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive ICs. |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime, even under humidity and thermal stress per J-STD-020 MSL level 1. |
| RoHS-compliant HE3 suffix | Meets automotive environmental requirements and supports lead-free reflow (260 °C peak) without degradation. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤146 V during 100 V/300 ms load dump events, preventing damage to MCU, CAN transceivers, and power management ICs. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules exposed to relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional SMBG90AHE3/52 protects grounded-signal lines referenced to supply. Use Value: Clamps induced spikes up to 600 W without degrading signal integrity or adding capacitance that affects 10 kHz sensor bandwidth. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Stage |
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during fast switching in motor drives. IC Role / Device Role / Timing Role: Connected cathode-to-gate, anode-to-source; clamps negative-going gate-source transients below -10 V. Use Value: Prevents gate oxide rupture by limiting VGS excursion to ≤146 V while maintaining <1 ns response-critical for 100 kHz+ PWM systems. | Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs subject to AC line coupling and lightning surges. IC Role / Device Role / Timing Role: Unidirectional configuration installed with cathode to -48 V rail, anode to system ground, absorbing positive transients. Use Value: Withstands repeated 600 W pulses per ITU-T K.20/K.21, ensuring uninterrupted service in central office and remote radio head equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A-E3/52 | Same VWM (90 V), lower PPPM (600 W same), but higher VC (150 V vs. 146 V); SMBJ has larger DO-214AA package. | Less space-constrained layouts; slightly reduced clamping margin may require tighter downstream voltage tolerance. | Select when board real estate allows larger footprint and legacy SMBJ design reuse is prioritized. |
| SMCJ90AHE3/52 | Same VWM/VBR, higher PPPM (1500 W), larger SMC (DO-214AB) package; identical AEC-Q101 qualification. | Higher-energy threat environments (e.g., heavy-duty vehicle alternators); requires PCB pad redesign. | Choose for enhanced surge margin where layout permits larger 7.11 × 6.22 mm package and 1500 W rating is mandated. |
Compared with SMBJ90A-E3/52 and SMCJ90AHE3/52, SMBG90AHE3/52 offers optimal balance of compact SMBG footprint, tight 146 V clamping, and AEC-Q101 validation-making it preferred for space-limited automotive modules where clamping precision and thermal performance are critical.
Availability
SMBG90AHE3/52 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC input stages requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG90AHE3/52 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 automotive-grade qualification.
The SMBG TransZORB® series was engineered specifically for high-reliability transient suppression in space-constrained automotive and industrial applications, combining low-profile packaging with AEC-Q101 validation and precise clamping performance.
FAQ
What is the clamping voltage of SMBG90AHE3/52 at its rated peak pulse current?
The SMBG90AHE3/52 has a maximum clamping voltage (VC) of 146 V when subjected to its peak pulse current (IPPM) of 4.1 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG90AHE3/52 achieves this clamping performance while maintaining low incremental resistance, ensuring consistent protection across temperature and aging conditions.
Is SMBG90AHE3/52 suitable for automotive applications?
Yes, SMBG90AHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to +150 °C. Its HE3 suffix denotes RoHS compliance and AEC-Q101 qualification, verified through temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD22. The SMBG90AHE3/52 is deployed in engine control units, body electronics, and ADAS sensors where transient immunity to ISO 7637-2 and ISO 16750-2 is mandatory.
What is the difference between SMBG90AHE3/52 and SMBG90CAHE3/52?
SMBG90AHE3/52 is unidirectional, with polarity marked by a cathode band and intended for DC line protection where current flows in one direction. SMBG90CAHE3/52 is bidirectional, lacking polarity marking and designed for AC or floating signal line protection-its breakdown occurs symmetrically in both directions. The "A" suffix denotes unidirectional; "CA" denotes bidirectional. Both share identical VWM (90 V), VBR, and PPPM, but only SMBG90AHE3/52 supports forward surge current (IFSM = 100 A).
What package type does SMBG90AHE3/52 use, and what are its key mechanical features?
SMBG90AHE3/52 uses the SMBG (DO-215AA) package: a low-profile surface-mount case measuring 4.57 × 3.94 × 2.10 mm, with matte tin-plated leads compliant with J-STD-002 solderability standards. It meets UL 94 V-0 flammability rating, supports MSL level 1 handling, and features a cathode band for polarity identification. The SMBG90AHE3/52's compact size enables high-density placement on automotive PCBs while maintaining thermal performance via optimized copper pad layout (0.2" × 0.2" per terminal).
Does SMBG90AHE3/52 have a specified junction capacitance value?
No specific junction capacitance (CJ) is published for SMBG90AHE3/52 in the official Vishay datasheet (Document Number: 88456). While Figure 4 shows typical CJ curves for the SMBG family, values are given only at zero bias and varying VWM; for SMBG90AHE3/52 (VWM = 90 V), no discrete CJ point is tabulated. Designers requiring low-capacitance protection should verify layout parasitics or consider specialized low-CJ variants-SMBG90AHE3/52 is optimized for power handling and clamping, not RF signal integrity.
SMBG90AHE3/52 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMBG90AHE3/52 FAQ
1.How can I place an order for SMBG90AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90AHE3/52 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 SMBG90AHE3/52 reliable?
The price and inventory of SMBG90AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG90AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90AHE3/52?
SMBG90AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90AHE3/52 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 SMBG90AHE3/52?
For technical support, including SMBG90AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90AHE3/52 requirements.
6.How does Aetrix verify that SMBG90AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG90AHE3/52 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 SMBG90AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG90AHE3/52?
All SMBG90AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90AHE3/52, 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 SMBG90AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG90AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90AHE3/52 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 …
