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Vishay General Semiconductor - Diodes Division MSX1PB-M3/89A
- Part No.:
- MSX1PB-M3/89A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AD
- Datasheet:
-
MSX1PB-M3/89A.pdf
- Description:
- TVS DIODE 100VWM MICROSMP
- Quantity:
- Payment:
- Shipping:
Inventory:22,450
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Product details
Overview
MSX1PB-M3/89A from Vishay General Semiconductor is a surface-mount Schottky rectifier in the MicroSMP (DO-219AD) package, rated for 100 V repetitive peak reverse voltage, 1.0 A average forward current, and 18 A non-repetitive surge current. It features low forward voltage drop (0.9 V at 1.0 A, 125 °C), low leakage (<1.0 μA at 25 °C), and ESD immunity exceeding 8 kV per HBM (JESD22-A114). It is used for polarity and rail-to-rail protection in automotive infotainment power rails.
For engineers reviewing the MSX1PB-M3/89A datasheet, MSX1PB-M3/89A pinout, MSX1PB-M3/89A application, or MSX1PB-M3/89A equivalent, key selection criteria include its 100 V VRRM, 0.9 V VF at 1.0 A/125 °C, MicroSMP footprint compatibility, AEC-Q101 qualification status (via HM3 variant), and ESD robustness (>8 kV HBM) in space-constrained commercial and automotive PCBs.
Technical Context
This device is a single-die, oxide planar Schottky junction rectifier optimized for low-loss DC power path protection. Its thermal resistance of 30 °C/W (junction-to-lead) and 110 °C/W (junction-to-ambient) enables reliable operation up to 175 °C junction temperature under defined PCB copper pad conditions.
The MSX1PB-M3/89A delivers fast recovery (960 ns typical trr) and low junction capacitance (5 pF at 4.0 V), supporting high-frequency switching environments. Its matte tin-plated terminals meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum continuous reverse voltage before breakdown; defines safe operating margin in 12 V–48 V automotive systems. |
| IF(AV) | 1.0 A - average forward current rating at 75 °C case temperature; supports sustained load in compact power rails. |
| VF @ 1.0 A, 125 °C | 0.9 V - low conduction loss reduces heat generation and improves efficiency in thermally constrained layouts. |
| IFSM | 18 A - peak surge capability for transient overcurrent events such as load dump or hot-swap insertion. |
| trr | 960 ns - fast reverse recovery minimizes switching losses and EMI in high-frequency protection circuits. |
| CJ | 5 pF @ 4.0 V - low junction capacitance preserves signal integrity and reduces capacitive loading on protected lines. |
| TJ max. | 175 °C - extended junction temperature rating enables use in under-hood automotive modules without derating. |
Pinout & Package
Package: MicroSMP (DO-219AD), 2-terminal surface-mount package with cathode band marking; dimensions 2.70 mm × 1.40 mm × 0.65 mm (L × W × H); UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to input/power source side; must be routed with adequate current-carrying copper width. |
| Cathode (K) | Forward current exit point / reverse-blocking terminal | Marked by color band; connects to protected load/rail; serves as reference for ESD clamp path. |
Key Features
| Feature | Design Value |
|---|---|
| ESD immunity | HBM >8 kV (JESD22-A114), air discharge >15 kV (IEC61000-4-2) - eliminates need for external TVS in many low-energy interfaces. |
| Low profile height | 0.65 mm typical - enables placement beneath connectors or in ultra-thin modules where Z-height is critical. |
| AEC-Q101 qualification path | Available via HM3 suffix variant - supports automotive-grade sourcing without redesign when upgrading from M3. |
| Halogen-free & RoHS | M3 suffix confirms compliance with JEDEC JS709B and EU RoHS Directive 2011/65/EU - meets global environmental mandates. |
| Automated placement compatibility | Matte tin terminations and DO-219AD geometry - ensures high-yield pick-and-place with standard SMT equipment. |
Applications
| Automotive Infotainment Power Rail Protection | Industrial Sensor Signal Conditioning Input Stage |
|---|---|
Use Scenario: Protecting 12 V supply inputs to head unit MCUs against reverse battery connection and load dump transients. IC Role / Device Role / Timing Role: Polarity protection diode in series with main power input; blocks reverse current while conducting forward during normal operation. Use Value: Prevents damage to downstream LDOs and processors using only 0.9 V forward drop and 18 A surge tolerance - no additional fuse or crowbar needed. |
Use Scenario: Guarding analog front-end inputs of 4–20 mA loop-powered sensors against accidental wiring reversal or ESD events. IC Role / Device Role / Timing Role: Rail-to-rail clamping diode placed between signal line and ground; conducts ESD current away from precision amplifier inputs. Use Value: Leverages >8 kV HBM rating and 5 pF capacitance to suppress ESD without distorting low-bandwidth sensor signals or adding noise. |
| USB-C Port VBUS Polarity Control | Smart Home Hub Power Sequencing |
Use Scenario: Ensuring correct polarity on dual-role USB-C VBUS paths where source/sink roles may swap dynamically. IC Role / Device Role / Timing Role: Low-VF series rectifier enabling bidirectional power negotiation while blocking reverse current during sink mode. Use Value: 0.9 V drop at 1.0 A allows full 5 V delivery even under worst-case thermal conditions - maintains USB-PD compliance margins. |
Use Scenario: Isolating auxiliary 3.3 V rail from main 5 V supply during cold-start sequencing in voice-controlled hubs. IC Role / Device Role / Timing Role: Single-diode OR-ing element preventing backfeed from always-on subsystems into powered-down domains. Use Value: MicroSMP footprint fits tight spacing between PMIC outputs; 175 °C rating ensures reliability during extended standby thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MBR1100-M3/89A | Same MicroSMP package, but higher 1.1 A IF(AV) and 110 V VRRM; VF = 0.85 V @ 1 A, 25 °C. | Better suited for higher-current 12 V rails where <100 mV lower VF justifies cost premium. | Select if system requires margin above 1.0 A average load or tighter VF spec at room temperature. |
| ON Semiconductor SB1100-TB | DO-214AA (SMB) package; larger footprint (4.5 mm × 3.8 mm); VF = 0.92 V @ 1 A, 25 °C; no AEC-Q101 or ESD data published. | Requires PCB layout change; lacks documented ESD immunity and automotive qualification. | Use only in non-automotive, space-tolerant designs where MicroSMP's 0.65 mm height is not required. |
Compared with VS-MBR1100-M3/89A and SB1100-TB, the MSX1PB-M3/89A offers the smallest Z-height and verified ESD performance in its class, making it optimal for next-gen automotive and portable electronics where board area and electrostatic robustness are co-constrained.
Availability
MSX1PB-M3/89A is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor interface protection, and USB-C VBUS polarity control requiring stable component supply and long-term lifecycle support.
Supply support for MSX1PB-M3/89A 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 optoelectronics with emphasis on reliability, miniaturization, and automotive-grade qualification.
The MSX1PB-M3/89A belongs to Vishay's eSMP® Series of ultra-low-profile Schottky rectifiers, designed specifically for space-constrained power protection in automotive, industrial, and consumer electronics where ESD resilience and thermal performance are critical.
FAQ
What is the maximum junction temperature rating for MSX1PB-M3/89A?
The MSX1PB-M3/89A has a maximum junction temperature (TJ) of 175 °C, confirmed in the Vishay datasheet Document Number 87726. This rating allows operation in under-hood automotive environments and high-temperature industrial enclosures without thermal derating below 1.0 A average current when mounted on a 5.0 mm × 5.0 mm copper pad. The MSX1PB-M3/89A maintains specified electrical parameters up to this limit.
Is MSX1PB-M3/89A qualified to AEC-Q101?
No - the MSX1PB-M3/89A is not AEC-Q101 qualified. That qualification applies only to the HM3 suffix variant (e.g., MSX1PBHM3/89A). The M3 suffix indicates halogen-free and RoHS-compliant construction but does not include the extended stress testing required for automotive qualification. For automotive applications requiring AEC-Q101, specify the HM3 version of MSX1PB-M3/89A.
What does the "89A" in MSX1PB-M3/89A indicate?
The "89A" is Vishay's preferred package code denoting 7-inch diameter plastic tape-and-reel packaging with 4500 units per reel. It specifies the delivery format and quantity, not electrical or mechanical characteristics. The MSX1PB-M3/89A uses the same MicroSMP (DO-219AD) package regardless of reel code; alternate codes like "89" (3000/reel) or "89T" (tray) reflect different logistics configurations.
How does the ESD performance of MSX1PB-M3/89A compare to standard Schottky diodes?
The MSX1PB-M3/89A provides documented ESD immunity of >8 kV per HBM (JESD22-A114) and >15 kV per IEC61000-4-2 air discharge - significantly exceeding typical Schottky diodes, which rarely specify ESD ratings. This makes the MSX1PB-M3/89A suitable as an integrated ESD clamp in addition to its rectification function, reducing bill-of-materials count in sensitive interfaces.
Can MSX1PB-M3/89A replace a standard 1N4007 in a 12 V circuit?
No - the MSX1PB-M3/89A is not a drop-in replacement for the 1N4007. While both handle 1 A average current, the MSX1PB-M3/89A has only 100 V VRRM versus 1000 V for the 1N4007, and its MicroSMP package is incompatible with through-hole layouts. It also lacks the 1N4007's surge rating (30 A vs. 18 A). The MSX1PB-M3/89A targets modern SMT designs where low profile and ESD robustness matter more than ultra-high VRRM.
MSX1PB-M3/89A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AD
- Series:
- eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AD (MicroSMP)
MSX1PB-M3/89A FAQ
1.How can I place an order for MSX1PB-M3/89A through Aetrix?
Please submit a Request for Quotation (RFQ) for MSX1PB-M3/89A 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 MSX1PB-M3/89A reliable?
The price and inventory of MSX1PB-M3/89A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSX1PB-M3/89A is usually 5 days.
3.What payment methods are accepted for MSX1PB-M3/89A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSX1PB-M3/89A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSX1PB-M3/89A?
MSX1PB-M3/89A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSX1PB-M3/89A 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 MSX1PB-M3/89A?
For technical support, including MSX1PB-M3/89A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSX1PB-M3/89A requirements.
6.How does Aetrix verify that MSX1PB-M3/89A is sourced from the original manufacturer or authorized distributors?
All MSX1PB-M3/89A 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 MSX1PB-M3/89A meets industry standards.
7.What is the process for return or replacement of MSX1PB-M3/89A?
All MSX1PB-M3/89A units undergo pre-shipment inspection (PSI). If there is an issue with MSX1PB-M3/89A, 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 MSX1PB-M3/89A part is unused and in its original packaging.
Return procedure for MSX1PB-M3/89A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSX1PB-M3/89A Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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