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Vishay General Semiconductor - Diodes Division SMBG48CHE3/52
- Part No.:
- SMBG48CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG48CHE3/52.pdf
- Description:
- TVS DIODE 48VWM 85.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
SMBG48CHE3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 48 V stand-off voltage (VWM), 53.3–58.9 V breakdown voltage (VBR), 7.8 A peak pulse current (IPPM), 77.4 V maximum clamping voltage (VC) at IPPM, and 600 W peak pulse power (10/1000 µs). It is AEC-Q101 qualified and used in automotive sensor protection circuits.
For engineers reviewing the SMBG48CHE3/52 datasheet, SMBG48CHE3/52 pinout, SMBG48CHE3/52 application, or SMBG48CHE3/52 equivalent, key selection criteria include bi-directional clamping capability, 77.4 V clamping at 7.8 A, AEC-Q101 qualification, RoHS-compliant HE3 termination, and DO-215AA thermal performance with RθJA = 100 °C/W.
Technical Context
This device operates as a voltage-clamped surge protector in bi-directional configurations, responding to both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low leakage (<1.0 µA at VWM), while the 10/1000 µs waveform rating confirms suitability for ISO 7637-2 and IEC 61000-4-5 compliant designs.
Thermally, it supports continuous operation up to TJ = 150 °C and derates linearly above 25 °C ambient per Figure 2. The DO-215AA package provides 20 °C/W junction-to-lead thermal resistance, enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads - critical for sustaining repetitive surge events in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 48 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe working range for protected line. |
| VBR (min/max) | 53.3 V / 58.9 V at 1.0 mA - Ensures reliable turn-on within tight tolerance; guarantees clamping begins no later than 58.9 V under surge. |
| VC @ IPPM | 77.4 V at 7.8 A - Clamped voltage seen by downstream circuit during 600 W transient; determines maximum stress on protected IC. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; validates compliance with automotive load-dump and inductive-switching standards. |
| IPPM | 7.8 A - Peak current the device safely shunts during standardized surge; directly relates to PCB trace sizing and layout robustness. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood environments without thermal shutdown. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive applications including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
DO-215AA (SMBG) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminations solderable per J-STD-002/JESD 22-B102; meets UL 94 V-0; no polarity marking for bi-directional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No functional distinction between terminals; either lead conducts during positive or negative transients - simplifies PCB routing and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated clamping performance under standardized surge waveforms required for automotive and industrial immunity testing. |
| AEC-Q101 qualification | Guarantees long-term reliability in automotive environments including thermal cycling, humidity, and mechanical shock. |
| Glass passivated junction | Ensures stable VBR over time and temperature, minimizing drift in clamping threshold across life cycle. |
| MSL Level 1 (260 °C peak) | Enables standard SMT reflow without moisture-related damage; eliminates pre-bake requirement for production assembly. |
| RoHS-compliant HE3 termination | Meets JESD 201 Class 2 whisker resistance; suitable for high-reliability automotive and industrial applications. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Lines |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from inductive switching spikes and battery dump transients. IC Role / Device Role / Timing Role: Bi-directional clamping element placed across sensor supply and ground, absorbing ±100 V surges before they reach analog front-end ICs. Use Value: Prevents sensor IC latch-up or permanent damage during cold-cranking or alternator load dump, maintaining ASIL-B system integrity. |
Use Scenario: Shielding CAN_H and CAN_L differential pair against ESD and fast transient bursts in factory automation controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS placed across bus lines to clamp common-mode transients without distorting 1 Mbps CAN signaling. Use Value: Maintains signal integrity below 100 pF junction capacitance (typ.) while limiting voltage to <77.4 V - preserving bit error rate in noisy plant-floor environments. |
| Consumer Power Adapter Inputs | Telecom Line Interface Cards |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifiers and controller ICs from lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-level surge suppression after MOV, providing precise clamping where fast response and repeatable VC are critical. Use Value: Delivers consistent 77.4 V clamping at 7.8 A - tighter control than MOVs - reducing stress on 600 V MOSFETs and improving adapter MTBF. |
Use Scenario: Protecting Ethernet PHY interfaces and line drivers on telecom DSLAM line cards from induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Bi-directional TVS connected between tip/ring and ground to suppress longitudinal mode transients without affecting DC bias or AC signaling. Use Value: Enables compliance with GR-1089-CORE Level 3 (10/1000 µs, 1 kV) while maintaining <1 µA leakage at 48 V - preventing false disconnects in powered line cards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ48CA | Same VWM (48 V), identical DO-214AA package, but lower PPPM = 600 W same rating; however, higher VC = 79.4 V at 7.5 A and non-AEC-Q101 rated. | Not qualified for automotive use; suitable only for commercial/industrial grade systems where AEC-Q101 is not mandated. | Select SMBJ48CA only if AEC-Q101 is unnecessary and board space allows DO-214AA footprint. |
| SMCJ48CA | Higher PPPM = 1500 W, larger DO-214AB package, VC = 77.4 V at 19.9 A; same VWM/VBR range but significantly higher surge current capability. | Used where multi-event surge endurance or higher single-event energy (e.g., ISO 16750-2 Pulse 5a) is required. | Choose SMCJ48CA when system-level testing demands >600 W margin or when thermal mass must absorb repeated transients. |
Compared with SMBG48CHE3/52, SMBJ48CA offers identical clamping voltage but lacks automotive qualification and has slightly higher VC, while SMCJ48CA delivers triple the surge power in a larger footprint - making SMBG48CHE3/52 optimal for space-constrained AEC-Q101 designs needing precise 600 W clamping.
Availability
SMBG48CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN nodes, and telecom line interface cards requiring stable component supply with full AEC-Q101 traceability and RoHS/REACH compliance.
Supply support for SMBG48CHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial applications, balancing low profile, AEC-Q101 compliance, and repeatable clamping performance.
FAQ
What is the polarity configuration of SMBG48CHE3/52?
SMBG48CHE3/52 is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. It clamps voltage transients equally in both directions - ideal for protecting AC-coupled or differential signal lines like CAN or RS-485 where polarity reversal may occur. This eliminates orientation errors during automated placement.
Does SMBG48CHE3/52 meet AEC-Q101 requirements?
Yes, SMBG48CHE3/52 is explicitly AEC-Q101 qualified, as confirmed in Vishay's datasheet revision 12-Nov-12 (Document Number: 88456). It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 Rev D, making it suitable for automotive powertrain and chassis applications.
What is the maximum clamping voltage for SMBG48CHE3/52 under surge conditions?
The maximum clamping voltage (VC) for SMBG48CHE3/52 is 77.4 V at 7.8 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured and guaranteed per datasheet Table "ELECTRICAL CHARACTERISTICS", ensuring predictable overvoltage protection for downstream ICs.
How does the HE3 suffix affect SMBG48CHE3/52?
HE3 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike E3 (commercial grade), HE3 ensures enhanced metallurgical stability for automotive under-hood environments and guarantees compliance with automotive supply chain material requirements.
What package type does SMBG48CHE3/52 use, and what are its mounting requirements?
SMBG48CHE3/52 uses the DO-215AA (SMBG) package - a low-profile gull-wing SMD outline with 5.0 mm × 5.0 mm copper pad recommendation per terminal. Mounting per Vishay's recommended pad layout ensures thermal performance (RθJA = 100 °C/W) and mechanical reliability during reflow and thermal cycling.
SMBG48CHE3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 48V
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 85.5V
- Current - Peak Pulse (10/1000µs):
- 7A
- 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)
SMBG48CHE3/52 FAQ
1.How can I place an order for SMBG48CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG48CHE3/52 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 SMBG48CHE3/52 reliable?
The price and inventory of SMBG48CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG48CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG48CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG48CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG48CHE3/52?
SMBG48CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG48CHE3/52 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 SMBG48CHE3/52?
For technical support, including SMBG48CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG48CHE3/52 requirements.
6.How does Aetrix verify that SMBG48CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG48CHE3/52 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 SMBG48CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG48CHE3/52?
All SMBG48CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG48CHE3/52, 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 SMBG48CHE3/52 part is unused and in its original packaging.
Return procedure for SMBG48CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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