My Inquiry
My Account
Nexperia USA Inc. BSS63-QR
- Part No.:
- BSS63-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BSS63-QR.pdf
- Description:
- TRANS PNP 100V 0.1A TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,200
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BSS63-QR from Nexperia is a PNP high-voltage bipolar junction transistor in SOT23 package, rated for −100 V VCEO, −100 mA IC, and 30 minimum hFE at −10 mA. It serves as a high-voltage switching element in automotive power control circuits, including load switching and voltage-level translation in body electronics modules.
For engineers reviewing the BSS63-QR datasheet, BSS63-QR pinout, BSS63-QR application, or BSS63-QR equivalent, key selection criteria include verified AEC-Q101 qualification, −100 V breakdown rating, SOT23 thermal resistance (500 K/W), and base-emitter saturation voltage of −900 mV at −2.5 mA drive.
Technical Context
This discrete PNP transistor operates with open-base collector-emitter breakdown of −100 V and supports DC switching up to −100 mA continuous current. Its hFE remains ≥30 from −10 mA to −25 mA at 25 °C, enabling predictable gain in low-to-moderate current driver stages.
Thermal performance is defined for FR4 PCB mounting: Rth(j-a) = 500 K/W, with maximum junction temperature of 150 °C. Cut-off leakage is tightly controlled - ICBO ≤ −100 nA at −90 V and 25 °C, supporting stable off-state integrity in high-impedance bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −100 V - Maximum safe collector-emitter voltage with base open; enables use in 48 V automotive systems with margin. |
| IC | −100 mA - Continuous collector current rating; suitable for driving relays, LEDs, and small solenoids. |
| hFE | ≥30 at VCE = −1 V, IC = −10 mA - Ensures reliable base drive sizing for saturated switching without overdesign. |
| VCE(sat) | ≤ −250 mV at IC = −25 mA, IB = −2.5 mA - Low saturation voltage minimizes conduction loss in high-side switch configurations. |
| Rth(j-a) | 500 K/W - Thermal resistance on standard FR4; defines power derating above 25 °C ambient. |
| fT | 50–85 MHz - Transition frequency confirms usability in low-speed digital switching (≤1 MHz) and analog amplification up to audio band. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body, tin-plated copper leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Control terminal; requires negative bias relative to emitter to forward-bias base-emitter junction and enable conduction. |
| 2 | Emiter (E) | Current source terminal in PNP configuration; connected to higher potential rail in high-side switch applications. |
| 3 | Collector (C) | Current sink terminal; delivers load current to ground or lower-potential node when transistor is saturated. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Stress-tested per automotive discrete semiconductor standard; supports deployment in under-hood and chassis control units without additional qualification. |
| −100 V VCEO rating | Provides 2× margin over 48 V nominal vehicle systems, reducing risk of avalanche failure during load dump transients. |
| Low VBE(sat) | −900 mV at IB = −2.5 mA ensures efficient base drive from 3.3 V or 5 V logic sources without external level-shifting. |
| SOT23 footprint compatibility | Standardized 1.9 mm pitch allows drop-in replacement in existing layouts and supports automated placement and reflow soldering. |
Applications
| Automotive Body Control Module (BCM) | Industrial 48 V DC Power Sequencing |
|---|---|
Use Scenario: Controlling door lock actuators and interior lighting loads in 12 V/48 V dual-battery architectures. IC Role / Device Role / Timing Role: High-side PNP switch isolating microcontroller GPIO from inductive loads. Use Value: −100 V rating withstands ISO 7637-2 pulse 5a (load dump), while SOT23 size reduces PCB area vs. TO-92 alternatives. |
Use Scenario: Enabling/disabling auxiliary power rails in programmable logic controller (PLC) backplanes. IC Role / Device Role / Timing Role: Discrete high-voltage switch in discrete power sequencing tree with microcontroller supervision. Use Value: Verified AEC-Q101 reliability ensures long-term stability in industrial environments with wide temperature cycling. |
| LED Driver for Commercial Lighting | High-Voltage Signal Level Translation |
Use Scenario: Constant-current switching for 24–48 V LED strings in streetlight drivers. IC Role / Device Role / Timing Role: Current-sinking switch in linear or PWM-controlled LED current path. Use Value: −250 mV VCE(sat) limits power dissipation to <10 mW at 40 mA, eliminating need for heatsinking. |
Use Scenario: Converting 3.3 V logic signals to −12 V or −24 V control levels in test equipment interface boards. IC Role / Device Role / Timing Role: Inverting level shifter with defined output swing and fast turn-off (fT > 50 MHz). Use Value: Tight ICBO (≤−100 nA) prevents false triggering in high-impedance level-shift nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC807-40-Q | Lower VCEO (−45 V), higher hFE (250–630), same SOT23 package | Not suitable for 48 V systems requiring >2× margin; better for low-voltage logic interfacing | Select when gain linearity and low base drive are prioritized over voltage headroom |
| MMBT4403 | −40 V VCEO, −600 mA IC, non-AEC-Q101 qualified | Lacks automotive qualification; higher current but insufficient voltage margin for 48 V transient immunity | Acceptable only in non-automotive industrial controls where qualification is not mandated |
Compared with BC807-40-Q and MMBT4403, BSS63-QR uniquely balances AEC-Q101 compliance, −100 V capability, and SOT23 form factor-making it the only option among the three qualified for automotive 48 V load switching with full transient margin.
Availability
BSS63-QR is available at Aetrix Electronics and suitable for automotive body electronics, industrial 48 V power sequencing, and commercial LED driver designs requiring stable component supply and long-lifecycle support.
Supply support for BSS63-QR 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors for automotive, industrial, and consumer markets.
BSS63-QR belongs to Nexperia's AEC-Q101-qualified discrete transistor portfolio, engineered specifically for robust high-voltage switching in automotive subsystems and harsh-environment industrial controls.
FAQ
Is BSS63-QR pin-compatible with standard SOT23 PNP transistors like BC856 or MMBT3906?
No. While all use SOT23 packaging, BSS63-QR has Base–Emitter–Collector pinout (1–2–3), whereas BC856 and MMBT3906 follow Emitter–Base–Collector (1–2–3). Incorrect PCB layout will reverse polarity and prevent operation. Always verify pin assignment using Nexperia's official package outline diagram.
What is the maximum allowable PCB copper area for optimal thermal performance of BSS63-QR?
For Rth(j-a) = 500 K/W, Nexperia specifies a single-sided FR4 board with standard SOT23 footprint and tin-plated copper. Adding 25 mm² of 1 oz copper connected to pin 2 (emitter) reduces Rth(j-a) by ~15%, but no derating curve is published beyond the baseline condition. Thermal simulation is recommended for custom layouts.
Does BSS63-QR support pulsed operation beyond its DC current rating?
Yes. Peak collector current ICM is rated at −100 mA, matching its DC limit. Unlike some transistors with higher pulse ratings, BSS63-QR does not specify duty-cycle-dependent surge capability - sustained pulses must remain within −100 mA to avoid junction overheating or bond-wire failure.
Can BSS63-QR be used in linear amplifier configurations?
It can operate in active region, but its design emphasis is switching: hFE is specified only at two points (−10 mA and −25 mA), and fT is measured at −25 mA. For precision analog amplification, devices with broader hFE consistency and guaranteed fT across bias range (e.g., BC846 series) are preferred.
BSS63-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 250mV @ 2.5mA, 25mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 30 @ 25mA, 1V
- Power - Max:
- 250 mW
- Frequency - Transition:
- 85MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BSS63-QR FAQ
1.How can I place an order for BSS63-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for BSS63-QR 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 BSS63-QR reliable?
The price and inventory of BSS63-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BSS63-QR is usually 5 days.
3.What payment methods are accepted for BSS63-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BSS63-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BSS63-QR?
BSS63-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BSS63-QR 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 BSS63-QR?
For technical support, including BSS63-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BSS63-QR requirements.
6.How does Aetrix verify that BSS63-QR is sourced from the original manufacturer or authorized distributors?
All BSS63-QR 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 BSS63-QR meets industry standards.
7.What is the process for return or replacement of BSS63-QR?
All BSS63-QR units undergo pre-shipment inspection (PSI). If there is an issue with BSS63-QR, 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 BSS63-QR part is unused and in its original packaging.
Return procedure for BSS63-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BSS63-QR Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
