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Vishay General Semiconductor - Diodes Division P6SMB100CA-E3/5B
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- Part No.:
- P6SMB100CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB100CA-E3/5B.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,527
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Product details
Overview
P6SMB100CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V maximum clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects signal lines and power rails in automotive sensor interfaces and industrial I/O modules against ESD and inductive switching transients.
For engineers reviewing the P6SMB100CA-E3/5B datasheet, P6SMB100CA-E3/5B pinout, P6SMB100CA-E3/5B application, or P6SMB100CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low incremental surge resistance, AEC-Q101 qualification status, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates identically in both polarities, with symmetrical breakdown (VBR = 95–105 V at 1 mA) and clamping behavior. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and fast response time (<1 ns), enabling protection of high-speed analog and digital signal paths without signal distortion.
The device is rated for 150 °C maximum junction temperature and features MSL Level 1 moisture sensitivity per J-STD-020. Its thermal resistance (RθJA = 100 °C/W) reflects standard SMB mounting on minimal copper pads, and it supports repetitive surge duty cycles up to 0.01 % at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 85.5 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 95.0–105 V at 1 mA - Symmetrical avalanche onset voltage in both directions; ensures consistent transient suppression polarity-independently. |
| VC (Clamping) | 137 V at 4.4 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component voltage stress. |
| PPPM | 600 W - Peak transient energy absorption capability; validates suitability for automotive load-dump and inductive switch-off events. |
| IPPM | 4.4 A - Maximum non-repetitive surge current the device can shunt without degradation; derived from 10/1000 μs waveform test condition. |
| TJ max. | 150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with IPC-7351B land patterns and reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically as bidirectional avalanche junction endpoints; no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and leakage in both polarities - eliminates need for orientation-aware layout in AC-coupled or floating signal lines. |
| 600 W peak pulse power | Validated at 10/1000 μs waveform - meets ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surge immunity requirements. |
| AEC-Q101 qualified | Automotive-grade reliability with MSL Level 1 and 260 °C lead-free reflow compatibility - suitable for engine control, ADAS sensor, and body electronics. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage exposure to protected ICs - critical for safeguarding 3.3 V or 5 V logic interfaces adjacent to noisy power domains. |
| Glass passivated junction | Stable leakage (<1 μA at VWM) across -65 to +150 °C - ensures predictable standby current in battery-powered and wide-temperature applications. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and alternator ripple in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing transients before they reach the input stage of the sensor interface IC. Use Value: Maintains signal integrity under ISO 16750-2 load-dump pulses (up to 120 V) while adding <1 pF parasitic capacitance to preserve rise/fall times. |
Use Scenario: Safeguarding PLC digital input channels connected to 24 V DC field wiring exposed to relay coil flyback and EMI coupling. IC Role / Device Role / Timing Role: Primary overvoltage suppressor mounted directly at connector entry point, shunting surges to chassis ground before reaching optocoupler or level-shifter inputs. Use Value: Limits induced voltage to ≤137 V during 1 A–5 A inductive spikes, preventing latch-up or permanent damage to microcontroller GPIOs. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Control |
Use Scenario: Secondary protection on Ethernet PHY differential pairs and RS-485 data lines in base station line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response TVS deployed after primary gas discharge tube (GDT), clamping residual transients to safe levels for PHY ICs. Use Value: Sub-1 ns response time ensures clamping occurs before GDT arc-quenching delay, reducing total let-through energy to <10 mJ. |
Use Scenario: Suppressing back-EMF from brushed DC motors in washing machine control boards during commutation and stall conditions. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals or H-bridge power FETs, diverting inductive kickback away from gate drivers and MCU. Use Value: Withstands 600 W peak pulses without degradation, enabling reliable operation over >100,000 motor start/stop cycles per AEC-Q101 lifetime testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Same VWM (85.5 V), identical SMB package, but lower PPPM = 600 W and higher VC = 143 V at same IPPM. | Marginally higher clamping voltage reduces protection margin for 3.3 V logic; otherwise interchangeable in non-critical industrial use. | Select P6SMB100CA-E3/5B when tighter clamping (137 V vs. 143 V) and AEC-Q101 qualification are required for automotive designs. |
| 1.5SMC100CA | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM/VBR range, but 3× footprint area and 2× height. | Not suitable for space-constrained PCBs; used where higher single-pulse energy handling is mandatory (e.g., mains-connected equipment). | Choose P6SMB100CA-E3/5B for compact, high-density layouts requiring automotive qualification and standard SMB placement compatibility. |
Compared with SMBJ100CA and 1.5SMC100CA, P6SMB100CA-E3/5B delivers optimal balance of automotive-grade reliability, industry-standard SMB footprint, and lowest clamping voltage in its 100 V class-making it preferred for safety-critical sensor nodes and compact industrial controllers where board space and voltage margin are constrained.
Availability
P6SMB100CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O modules, telecom line card surge protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB100CA-E3/5B 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 MOSFETs with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series is designed for robust transient suppression in automotive, industrial, and communications systems-delivering high-power surge handling in compact surface-mount packages with AEC-Q101 qualification options.
FAQ
What does the "CA" suffix indicate in P6SMB100CA-E3/5B?
The "CA" suffix in P6SMB100CA-E3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both forward and reverse directions. This eliminates polarity concerns during PCB placement and makes it ideal for protecting AC-coupled signals, differential buses like RS-485, or floating sensor outputs where voltage polarity may reverse. The P6SMB100CA-E3/5B achieves identical VBR, VC, and leakage characteristics in either direction.
Is P6SMB100CA-E3/5B AEC-Q101 qualified?
Yes, P6SMB100CA-E3/5B is AEC-Q101 qualified. The "_B" revision code (embedded in the full ordering part number P6SMB100CAHE3_B or P6SMB100CAHM3_B) confirms automotive-grade qualification, including stress testing for temperature cycling, humidity bias, and mechanical shock. This qualification is explicitly documented in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88370), making P6SMB100CA-E3/5B suitable for under-hood and ADAS applications.
What is the maximum clamping voltage of P6SMB100CA-E3/5B and at what current is it specified?
The maximum clamping voltage (VC) of P6SMB100CA-E3/5B is 137 V, measured at a peak pulse current (IPPM) of 4.4 A using the standardized 10/1000 μs double-exponential waveform. This value represents the highest voltage the protected circuit will experience during a worst-case transient event, and it is guaranteed across the full operating temperature range (-65 °C to +150 °C). The low VC/VBR ratio (~1.37) confirms efficient clamping performance for P6SMB100CA-E3/5B.
Can P6SMB100CA-E3/5B be used in place of unidirectional TVS diodes like P6SMB100A-E3/5B?
No, P6SMB100CA-E3/5B cannot be directly substituted for unidirectional types such as P6SMB100A-E3/5B without circuit review. While both share the same VWM (85.5 V) and package, the unidirectional version has a defined cathode band and conducts only in reverse bias-making it appropriate for DC power rail protection. The bidirectional P6SMB100CA-E3/5B lacks polarity marking and conducts symmetrically, so using it in a DC application may cause unintended conduction during normal forward-biased operation. Always verify signal topology before substituting P6SMB100CA-E3/5B.
What is the thermal resistance and power derating behavior of P6SMB100CA-E3/5B?
P6SMB100CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads. Its 5.0 W steady-state power dissipation (PD) is derated linearly above 25 °C ambient, dropping to zero at 150 °C junction temperature. Derating follows the curve in Figure 2 of the Vishay datasheet: at 75 °C ambient, PD is reduced to ~2.5 W. This behavior ensures safe operation of P6SMB100CA-E3/5B in thermally constrained industrial and automotive environments.
P6SMB100CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB100CA-E3/5B FAQ
1.How can I place an order for P6SMB100CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB100CA-E3/5B 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 P6SMB100CA-E3/5B reliable?
The price and inventory of P6SMB100CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB100CA-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB100CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB100CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB100CA-E3/5B?
P6SMB100CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB100CA-E3/5B 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 P6SMB100CA-E3/5B?
For technical support, including P6SMB100CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB100CA-E3/5B requirements.
6.How does Aetrix verify that P6SMB100CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB100CA-E3/5B 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 P6SMB100CA-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB100CA-E3/5B?
All P6SMB100CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB100CA-E3/5B, 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 P6SMB100CA-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB100CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB100CA-E3/5B Tags
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