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Microchip Technology UPTB5E3/TR7
- Part No.:
- UPTB5E3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-216AA
- Datasheet:
-
UPTB5E3/TR7.pdf
- Description:
- TVS DIODE 5VWM 9.5VC POWERMITE 1
- Quantity:
- Payment:
- Shipping:
Inventory:5,707
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Product details
Overview
UPTB5E3/TR7 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) in DO-216AA (Powermite) package, rated for 5 V standoff voltage (VWM), 6.0 V minimum breakdown (VBR @ 1 mA), and 1000 W peak pulse power (8/20 µs). It delivers sub-100 ps clamping response and is RoHS-compliant (e3 suffix), designed for ESD/EFT protection in high-reliability I/O interfaces.
For engineers reviewing the UPTB5E3/TR7 datasheet, UPTB5E3/TR7 pinout, UPTB5E3/TR7 application, or UPTB5E3/TR7 equivalent, key selection criteria include bidirectional polarity, 9.5 V clamping voltage at 10 A, 50 µA standby current at VWM, IEC61000-4-2/4-4 compliance, and DO-216AA thermal performance with full metallic cathode tab.
Technical Context
The UPTB5E3/TR7 implements a silicon avalanche diode structure optimized for fast transient suppression, with bidirectional symmetry enabling protection against both positive and negative surges without polarity constraints. Its oxide-passivated chip and high-temperature solder bonds ensure stable electrical characteristics under repeated surge stress.
Designed for automatic insertion and reflow assembly, the device features a full metallic bottom (cathode) that eliminates solder flux entrapment and an integral locking tab acting as a heat sink. Thermal resistance is 15 °C/W junction-to-tab when mounted on a heatsinked base.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5 V maximum working standoff voltage - defines max continuous reverse/forward bias before conduction begins |
| VBR @ 1 mA | 6.0 V minimum breakdown voltage - ensures reliable turn-on during transients above this threshold |
| VC @ 10 A | 9.5 V maximum clamping voltage - limits protected circuit voltage to safe level during 10 A surge |
| IPP (8/20 µs) | 89.4 A peak pulse current - supports robust immunity to lightning-induced surges per IEC61000-4-5 Class 1 |
| ID @ VWM | 50 µA max standby leakage - minimizes power loss and avoids false triggering in low-power circuits |
| Clamping time | <100 ps - enables protection of high-speed digital interfaces (e.g., USB, RS-485) before damage occurs |
| Package | DO-216AA (Powermite) - compact SMT footprint with full metallic cathode tab for thermal and mechanical reliability |
Pinout & Package
UPTB5E3/TR7 uses the DO-216AA (Powermite) package: 2-terminal surface-mount device with full metallic bottom serving as cathode terminal. The case bottom is electrically connected to cathode; top marking "B05▪" confirms bipolar configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Top lead (anode side) | Anode | Connects to line/pin requiring bidirectional surge protection; forms one side of symmetrical avalanche junction |
| Bottom tab (case) | Cathode | Full metallic surface acts as primary heat path and return path; must be soldered to copper pour for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional polarity | Enables single-device protection of AC-coupled or floating signal lines without external polarity planning |
| Full metallic cathode tab | Eliminates solder flux entrapment risk and provides low-thermal-resistance path (15 °C/W) to PCB copper |
| IEC61000-4-2/4-4 compliance | Validated for ±8 kV contact / ±15 kV air discharge ESD and 40 A/m EFT immunity in system-level testing |
| Moisture sensitivity Level 1 | Allows unlimited floor life without dry pack - simplifies SMT handling and reduces manufacturing cost |
| RoHS-compliant e3 finish | Matte-tin plating over copper meets JEDEC J-STD-020B and eliminates lead-based solder compatibility concerns |
Applications
| Industrial HMI Interfaces | Automotive Body Control Modules |
|---|---|
Use Scenario: Touchscreen controller I/O lines exposed to ESD during user interaction and cable coupling. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient energy before it reaches sensitive capacitive touch IC inputs. Use Value: Prevents latch-up or gate oxide damage in microcontroller GPIOs by limiting voltage to ≤9.5 V during ±8 kV ESD events. | Use Scenario: LIN bus transceiver pins subjected to load dump and inductive switching noise in door module wiring harnesses. IC Role / Device Role / Timing Role: Fast-response surge clamp absorbing 1000 W pulses while maintaining signal integrity on 19.2 kbps serial bus. Use Value: Ensures uninterrupted communication during battery disconnect/reconnect cycles and meets ISO 16750-2 transient immunity requirements. |
| Medical Patient Monitoring Ports | Telecom DSL Line Cards |
Use Scenario: ECG electrode input jacks exposed to operator-handling ESD and defibrillator-induced transients. IC Role / Device Role / Timing Role: Primary front-end protection element placed directly at connector, shunting surge current away from instrumentation amplifiers. Use Value: Maintains <1 pF parasitic capacitance impact and preserves DC accuracy while meeting IEC 60601-1-2 4th Ed. ESD immunity. | Use Scenario: ADSL/VDSL line interface circuits facing induced RF and lightning surges from outdoor copper pairs. IC Role / Device Role / Timing Role: Secondary surge protector downstream of gas discharge tube (GDT), clamping residual energy after GDT fires. Use Value: Limits let-through voltage to ≤9.5 V at 10 A, protecting line driver/receiver ICs compliant with ITU-T G.992.x standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A | Unidirectional; 600 W (8/20 µs); higher VC = 9.6 V at 10 A; SMB package (larger footprint) | Requires polarity-aware layout; less suitable for AC-coupled or floating lines | Select when unidirectional protection suffices and board space allows SMB footprint |
| SMCJ5.0CA | Bidirectional; 1500 W (8/20 µs); larger SMC package; VC = 9.2 V at 10 A | Higher power rating but requires 2× PCB area; not compatible with automated insertion equipment | Choose for higher-energy surge environments where DO-216AA size constraint is relaxed |
Compared with SMBJ5.0A and SMCJ5.0CA, the UPTB5E3/TR7 uniquely combines bidirectional operation, DO-216AA compactness, full-metallic thermal path, and IEC61000-4-2/4-4 validation-making it optimal for space-constrained, high-volume SMT designs requiring polarity-agnostic protection.
Availability
UPTB5E3/TR7 is available at Aetrix Electronics and suitable for industrial HMI interfaces, automotive body control modules, and medical patient monitoring ports requiring stable component supply, tape-and-reel delivery, and long-term lifecycle support.
Supply support for UPTB5E3/TR7 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The UPT series was developed specifically for compact, high-surge-capability TVS protection in automated SMT assembly environments, targeting applications demanding IEC-compliant ESD/EFT immunity with minimal board space and thermal overhead.
FAQ
What is the polarity configuration of UPTB5E3/TR7?
The UPTB5E3/TR7 is a bidirectional TVS diode, meaning it conducts symmetrically for both positive and negative transients. Its marking "B05▪" confirms bipolar construction, with the full metallic bottom serving as cathode and the top lead as anode - enabling protection of AC-coupled or floating signal lines without polarity constraints. This differs from unidirectional variants like UPT5e3 or UPT5Re3.
Does UPTB5E3/TR7 meet IEC61000-4-2 and IEC61000-4-4 standards?
Yes, UPTB5E3/TR7 is explicitly validated for compliance with IEC61000-4-2 (ESD immunity up to ±8 kV contact / ±15 kV air) and IEC61000-4-4 (EFT immunity at 40 A/m). These ratings are confirmed in Microsemi's official documentation and reflect system-level test results - not just component-level characterization - making UPTB5E3/TR7 suitable for end-equipment certification in industrial and medical applications.
What is the thermal resistance of UPTB5E3/TR7 and how should it be mounted?
The UPTB5E3/TR7 has a thermal resistance of 15 °C/W junction-to-tab when properly mounted. To achieve this, the full metallic cathode tab must be soldered to a minimum 10 mm² copper pour on the PCB with ≥2 thermal vias to inner ground planes. Mounting on FR4 with 1 oz copper only yields 240 °C/W junction-to-ambient - so heatsinking via the tab is essential for sustained 2.5 W steady-state operation.
Is UPTB5E3/TR7 compatible with lead-free reflow processes?
Yes, UPTB5E3/TR7 features matte-tin (e3) plating over copper and is rated for solder temperatures up to 260 °C for 10 seconds - fully compliant with IPC/JEDEC J-STD-020B Level 1 moisture sensitivity and standard lead-free reflow profiles. No dry pack is required due to its Level 1 classification, simplifying SMT line integration and reducing handling overhead.
What does the "TR7" suffix indicate in UPTB5E3/TR7?
"TR7" denotes tape-and-reel packaging per EIA-481-B standard: 12 mm carrier tape with 3,000 units per 7-inch reel. This format supports high-speed pick-and-place assembly and is the default for volume production. The base part number UPTB5E3 remains functionally identical - TR7 adds no electrical or thermal change, only logistics optimization for automated manufacturing.
UPTB5E3/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-216AA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 9.5V
- Current - Peak Pulse (10/1000µs):
- 15.7A
- Power - Peak Pulse:
- 1000W (1kW)
- 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:
- Powermite 1 (DO216-AA)
UPTB5E3/TR7 FAQ
1.How can I place an order for UPTB5E3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for UPTB5E3/TR7 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 UPTB5E3/TR7 reliable?
The price and inventory of UPTB5E3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPTB5E3/TR7 is usually 5 days.
3.What payment methods are accepted for UPTB5E3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPTB5E3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPTB5E3/TR7?
UPTB5E3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPTB5E3/TR7 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 UPTB5E3/TR7?
For technical support, including UPTB5E3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPTB5E3/TR7 requirements.
6.How does Aetrix verify that UPTB5E3/TR7 is sourced from the original manufacturer or authorized distributors?
All UPTB5E3/TR7 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 UPTB5E3/TR7 meets industry standards.
7.What is the process for return or replacement of UPTB5E3/TR7?
All UPTB5E3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with UPTB5E3/TR7, 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 UPTB5E3/TR7 part is unused and in its original packaging.
Return procedure for UPTB5E3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPTB5E3/TR7 Tags
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Diodes Incorporated
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