Specs & cross numbers — 12 V coil (code D12), 40 A @14 VDC resistive, 80 A inrush; AgSnO2 contacts; Form U (SPST-NO); sealed 6-pin DIP PCB relay; -40~125 C; operate/release <=10 ms; coil power 860 mW / 310 mW; approx. 12.3 × 15.7 × 14.0 mm. Cross/markings (identification only): 53ND12-Y-HW (case print); Compatible with FBR53ND12-Y-HW; Compatible with FBR53ND12-Y-HW-RW-F. Verify by the printed code and PCB footprint before purchase.
Compatibility (component-level) — Compatible with 12 V modules that use a 6-pin PCB footprint compatible with FBR53-HW “ND12”. Typical board locations searchable by users: [Engine Bay Power Distribution PCB Relay] [Radiator Cooling Fan Module Relay] [A/C Compressor Clutch Control Relay] [Headlamp/DRL Module Relay] [Blower Motor Controller Relay] [Fuel Pump Driver Module Relay] [Body/BCM Power Relay]. Confirm by printed code 53ND12-Y-HW and the same pad layout.
Complementary/related parts — Same footprint/contact system across coil options when specified by your board: Compatible with FBR53ND10-Y-HW (10 V coil), Compatible with FBR53ND09-Y-HW (9 V coil), Compatible with FBR53ND12-Y-HW-RW-F (reflow-capable). These are not electrical substitutes for 12 V boards unless coil voltage matches. Helpful tools: flux pen, desoldering braid, SAC305/60-40 solder, fine tip iron, conformal-coating touch-up.
Symptoms this can fix — No-start (fuel pump not energizing), A/C not engaging, cooling fan inoperative/overheating, headlamps/DRL dead, intermittent BCM/ECU resets, melted/burnt relay, stuck contacts causing battery drain. Bench check: apply 12 V DC to the coil with current-limited supply, listen for click, confirm continuity across load pins only when energized; replace if coil is open, contacts show high resistance, or case shows heat damage.
Complementary/related parts — Same footprint/contact system across coil options when specified by your board: FBR53ND10-Y-HW (10 V coil), FBR53ND09-Y-HW (9 V coil), and reflow-capable FBR53ND12-Y-HW-RW-F for THR assembly. These are not electrical substitutes for 12 V boards—match the exact coil voltage printed on the original. Helpful tools: flux pen, desoldering braid, SAC305/60-40 solder, fine tip iron, conformal-coating touch-up.
وصف
This is a high-power, sealed 6-pin DIP relay for 12-V automotive control/power boards. Use it as a component-level replacement when your original relay shows the same print and footprint.
Key SpecsMarking / Series: 53ND12-Y-HW (FBR53-HW family)
Contact Arrangement: 1 Form U (Form A, SPST-NO); AgSnO2 contacts
Coil: 12 VDC (code D12), typ. 167 Ω (±10% @20 °C)
Ratings: 40 A @14 VDC resistive; max inrush 80 A
Operate / Release: ≤10 ms / ≤10 ms
Operating Temp: −40 ~ +125 °C
Size / Type: approx. 12.3 × 15.7 × 14.0 mm; sealed 6-pin DIP PCB relay
Notes: PCB layout shorts pads #4 and #5 as per footprint
Compliance: RoHS
Cross-References (match print & footprint)53ND12-Y-HW; FBR53ND12-Y-HW; FBR53ND12-Y-HW-RW-F (reflow-capable variant).
Where It Fits (board-level)Engine-bay power distribution PCB
Radiator/cooling-fan controller
A/C compressor clutch control board
Headlamp/DRL module
Blower motor controller
Fuel pump driver or BCM/ECU boards
Install & Test TipsDesolder the old relay, clean pads, verify pad short (#4/#5), observe orientation.
Bench test: apply 12 VDC to the coil with current limit; verify contact closure only when energized.
This is a PCB component, not a plug-in socket relay.
ImportantComponent-level replacement only. Always confirm the printed code on your original relay and the PCB footprint before ordering.
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